regmap: debugfs: Check return value of regmap_write()

Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
fuse: allocate for_background dio requests based on io->async state

Commit 8b41e671 introduced explicit background checking for fuse_req
structures with BUG_ON() checks for the appropriate type of request in
in the associated send functions. Commit bcba24cc introduced the ability
to send dio requests as background requests but does not update the
request allocation based on the type of I/O request. As a result, a
BUG_ON() triggers in the fuse_request_send_background() background path if
an async I/O is sent.

Allocate a request based on the async state of the fuse_io_priv to avoid
the BUG.

Signed-off-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
mac80211: fix direct probe auth

We send direct probe to broadcast address, as some APs do not respond to
unicast PROBE frames when unassociated. Broadcast frames are not acked,
so we can not use that for trigger MLME state machine, but we need to
use old timeout mechanism.

This fixes authentication timed out like below:

[ 1024.671974] wlan6: authenticate with 54:e6:fc:98:63:fe
[ 1024.694125] wlan6: direct probe to 54:e6:fc:98:63:fe (try 1/3)
[ 1024.695450] wlan6: direct probe to 54:e6:fc:98:63:fe (try 2/3)
[ 1024.700586] wlan6: send auth to 54:e6:fc:98:63:fe (try 3/3)
[ 1024.701441] wlan6: authentication with 54:e6:fc:98:63:fe timed out

With fix, we have:

[ 4524.198978] wlan6: authenticate with 54:e6:fc:98:63:fe
[ 4524.220692] wlan6: direct probe to 54:e6:fc:98:63:fe (try 1/3)
[ 4524.421784] wlan6: send auth to 54:e6:fc:98:63:fe (try 2/3)
[ 4524.423272] wlan6: authenticated
[ 4524.423811] wlan6: associate with 54:e6:fc:98:63:fe (try 1/3)
[ 4524.427492] wlan6: RX AssocResp from 54:e6:fc:98:63:fe (capab=0x431 status=0 aid=1)

Cc: stable@vger.kernel.org # 3.9
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
spi: Move mailing list to vger

Given the spam and other problems with the existing list move to a newly
created list on vger.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
scripts/config: fix assignment of parameters for short version of --*-after options

When --*-after options are used, two parameters are parsed from the
command-line before the adequate function is called:
  - the `before' option, after which the new option will be inserted,
  - the name of the option to enable/disable/modularise.

With the short version of --*-after options (namely -E, -D, -M), the
parsing step is not performed which leads to processing unset variables.

Add options -E, -D, -M to the test that triggers assignment of parameters
for --*-after options.

Signed-off-by: Clement Chauplannaz <chauplac@gmail.com>
Acked-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
fuse: truncate pagecache range on hole punch

fuse supports hole punch via the fallocate() FALLOC_FL_PUNCH_HOLE
interface. When a hole punch is passed through, the page cache
is not cleared and thus allows reading stale data from the cache.

This is easily demonstrable (using FOPEN_KEEP_CACHE) by reading a
smallish random data file into cache, punching a hole and creating
a copy of the file. Drop caches or remount and observe that the
original file no longer matches the file copied after the hole
punch. The original file contains a zeroed range and the latter
file contains stale data.

Protect against writepage requests in progress and punch out the
associated page cache range after a successful client fs hole
punch.

Signed-off-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
fuse: update inode size and invalidate attributes on fallocate

An fallocate request without FALLOC_FL_KEEP_SIZE set can extend the
size of a file. Update the inode size after a successful fallocate.

Also invalidate the inode attributes after a successful fallocate
to ensure we pick up the latest attribute values (i.e., i_blocks).

Signed-off-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
spi: topcliff-pch: Pass correct pointer to free_irq()

free_irq() expects the same pointer that was passed to request_irq(), otherwise
the IRQ is not freed.

The issue was found using the following coccinelle script:

<smpl>
@r1@
type T;
T devid;
@@
request_irq(..., devid)

@r2@
type r1.T;
T devid;
position p;
@@
free_irq@p(..., devid)

@@
position p != r2.p;
@@
*free_irq@p(...)
</smpl>

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
NFC: Remove commented out LLCP related Makefile line

The Kconfig symbol NFC_LLCP was removed in commit 30cc458765 ("NFC: Move
LLCP code to the NFC top level diirectory"). But the reference to its
macro in this Makefile was only commented out. Remove it now.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
NFC: mei_phy depends on INTEL_MEI

INTEL_MEI_BUS_NFC never made it upstream, so make it depend on INTEL_MEI.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
NFC: mei_phy: Register event callback when enabling the device

The callback registration starts a waiting read, so it needs to be fired
everytime the device is enabled. Otherwise following writes will never get
an answer back.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
NFC: mei: Do not disable MEI devices from their remove routine

Enabling and disabling device is exclusively handled by the mei_phy_ops.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
spi: topcliff-pch: fix error return code in pch_spi_probe()

Fix to return -ENOMEM in the platform_device_alloc() error handling
case instead of 0, as done elsewhere in this function.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Samuel Ortiz <sameo@linux.intel.com> says:

"Merge tag 'nfc-fixes-3.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/nfc-fixes

This is the first batch of NFC fixes for 3.10, and it contains:

- 3 fixes for the NFC MEI support:
	* We now depend on the correct Kconfig symbol.
	* We register an MEI event callback whenever we enable an NFC device,
	  otherwise we fail to read anything after an enable/disable cycle.
	* We only disable an MEI device from its disable mey_phy_ops,
	  preventing useless consecutive disable calls.

- An NFC Makefile cleanup, as I forgot to remove a commented out line when
  moving the LLCP code to the NFC top level directory."

Signed-off-by: John W. Linville <linville@tuxdriver.com>
ath9k: prevent aggregation session deadlocks

Waiting for all subframes of an existing aggregation session to drain
before allowing mac80211 to start a new one is fragile and deadlocks
caused by this behavior have been observed.

Since mac80211 has proper synchronization for aggregation session
start/stop handling, a better approach to session handling is to simply
allow mac80211 to start a new session at any time. This requires
changing the code to discard any packets outside of the BlockAck window
in the A-MPDU software retry code.

This patch implements the above and also simplifies the code.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
atmel: printing bogus information

There was an extra ';' character added to the end of the if statement
which means that it always prints that the /proc entry wasn't created
even though it was.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: David Howells <dhowells@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
ARM i.MX6q: fix for ldb_di_sels

As pll5_video_div has been introduced to represent the clock
generated from post-divider for video.
Instead of pll5_video, pll5_video_div should be proper root clock
for ldb_di_sel.

Signed-off-by: Jiada Wang <jiada_wang@mentor.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
kbuild: Don't assume dts files live in arch/*/boot/dts

In commit b40b25ff (kbuild: always run gcc -E on *.dts, remove cmd_dtc_cpp),
dts building was changed to always use the C preprocessor. This meant
that the .dts file passed to dtc is not the original, but the
preprocessed one.

When compiling with a separate build directory (i.e., with O=), this
preprocessed file will not live in the same directory as the original.
When the .dts file includes .dtsi files, dtc will look for them in the
build directory, not in the source directory and compilation will fail.

The commit referenced above tried to fix this by passing arch/*/boot/dts
as an include path to dtc. However, for mips, the .dts files are not in
this directory, so dts compilation on mips breaks for some targets.

Instead of hardcoding this particular include path, this commit just
uses the directory of the .dts file that is being compiled, which
effectively restores the previous behaviour wrt includes. For most .dts
files, this path is just the same as the previous hardcoded
arch/*/boot/dts path.

This was tested on a mips (rt3052) and an arm (bcm2835) target.

Signed-off-by: Matthijs Kooijman <matthijs@stdin.nl>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
MIPS: Remove duplicate definition of check_for_high_segbits.

In C, one definition is sufficient.

Signed-off-by: David Daney <david.daney@cavium.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5304/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
MIPS: Quit exposing Kconfig symbols in uapi headers.

The kernel's struct pt_regs has many fields conditional on various
Kconfig variables, we cannot be exporting this garbage to user-space.

Move the kernel's definition to asm/ptrace.h, and put a uapi only
version in uapi/asm/ptrace.h gated by #ifndef __KERNEL__

Signed-off-by: David Daney <david.daney@cavium.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5305/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>