linux.git/drivers/net/wireless, branch v3.15-rc6

rtl8192cu: Fix unbalanced irq enable in error path of rtl92cu_hw_init()

2014-04-30T16:22:52+00:00

Fixes: a53268be0cb9 ('rtlwifi: rtl8192cu: Fix too long disable of IRQs')
Cc: stable@vger.kernel.org
Signed-off-by: Ben Hutchings 
Signed-off-by: John W. Linville

rtlwifi: rtl8192se: Fix regression due to commit 1bf4bbb

2014-04-30T16:22:52+00:00

Beginning with kernel 3.13, this driver fails on some systems. The problem
was bisected to:

Commit 1bf4bbb4024dcdab5e57634dd8ae1072d42a53ac
Author: Felix Fietkau 
Title: mac80211: send control port protocol frames to the VO queue

There is noting wrong with the above commit. The regression occurs because
V0 queue on RTL8192SE cards uses priority 6, not the usual 7. The fix is to
modify the rtl8192se routine that sets the correct transmit queue.

Bug: https://bugzilla.kernel.org/show_bug.cgi?id=74541

Reported-by: Alex Miller 
Tested-by: Alex Miller 
Signed-off-by: Larry Finger 
Cc: Stable     [3.13+]
Signed-off-by: John W. Linville

ath9k: remove tid->paused flag

2014-04-30T15:42:35+00:00

There are some corner cases where the driver could get stuck with a full
tid queue that is paused, leading to a software tx queue hang.

Since the tx queueing rework, pausing per-tid queues on aggregation
session setup is no longer necessary. The driver will assign sequence
numbers to buffered frames when a new session is established, in order
to get the correct starting sequence number.

mac80211 prevents new frames from entering the queue during setup.

Signed-off-by: Felix Fietkau 
Signed-off-by: John W. Linville

ath9k_hw: do not lower ANI setting below default on AR913x

2014-04-30T15:39:54+00:00

When the amount of noise fluctuates strongly, low immunity settings
can sometimes disrupt signal detection on AR913x chips. When that
happens, no OFDM/CCK errors are reported anymore, and ANI tunes the
radio to the lowest immunity settings.
Usually rx/tx fails as well in that case.

To fix this, keep noise immunity settings at or above ANI default level,
which will keep radio parameters at or above INI values.

Signed-off-by: Felix Fietkau 
Signed-off-by: John W. Linville

brcmfmac: Fix brcmf_chip_ai_coredisable not applying reset bits to BCMA_IOCTL

2014-04-25T01:46:22+00:00

brcmfmac has been broken on my cubietruck with a BCM43362:

brcmfmac: brcmf_chip_recognition: found AXI chip: BCM43362, rev=1
brcmfmac: brcmf_c_preinit_dcmds: Firmware version = wl0:
        Apr 22 2013 14:50:00 version 5.90.195.89.6 FWID 01-b30a427d

since commit 53036261033: "brcmfmac: update core reset and disable routines".

The problem is that since this commit brcmf_chip_ai_resetcore no longer sets
BCMA_IOCTL itself before bringing the core out of reset, instead relying on
brcmf_chip_ai_coredisable to do so. But brcmf_chip_ai_coredisable is a nop
of the chip is already in reset. This patch modifies brcmf_chip_ai_coredisable
to always set BCMA_IOCTL even if the core is already in reset.

This fixes brcmfmac hanging in firmware loading on my board.

Cc: stable@vger.kernel.org # v3.14
Signed-off-by: Hans de Goede 
Acked-by: Arend van Spriel 
Signed-off-by: John W. Linville

ath9k: fix race in setting ATH_OP_INVALID

2014-04-25T01:46:22+00:00

The commit "ath9k: move sc_flags to ath_common" moved setting
ATH_OP_INVALID flag below ieee80211_register_hw. This is causing
the flag never being cleared randomly as the drv_start is called
prior to setting flag. Fix this by setting the flag prior to
register_hw.

Signed-off-by: Rajkumar Manoharan 
Signed-off-by: John W. Linville

ath9k: add a recv budget

2014-04-22T18:09:37+00:00

Implement a recv budget so that in cases of high traffic we still allow other
taskets to get processed.

Without this, we can encounter a host of issues during high wireless traffic
reception depending on system load including rcu stall's detected (ARM),
soft lockups, failure to service critical tasks such as watchdog resets,
and triggering of the tx stuck tasklet.

The same thing was proposed previously by Ben:
 http://www.spinics.net/lists/linux-wireless/msg112891.html

The only difference here is that I make sure only processed packets are counted
in the budget by checking at the end of the rx loop.

Signed-off-by: Tim Harvey 
Acked-by: Felix Fietkau 
Signed-off-by: John W. Linville

ath9k: fix possible hang on flush

2014-04-22T18:09:37+00:00

If a flush is requested, make sure to clear the descriptor once we've
processed it.

This resolves a hang that will occur if all RX descriptors are full when a
flush is requested.

Signed-off-by: Tim Harvey 
Acked-by: Felix Fietkau 
Signed-off-by: John W. Linville

rtlwifi: rtl8188ee: initialize packet_beacon

2014-04-22T18:09:37+00:00

static code analysis from cppcheck reports:

[drivers/net/wireless/rtlwifi/rtl8188ee/trx.c:322]:
  (error) Uninitialized variable: packet_beacon

packet_beacon is not initialized and hence packet_beacon
contains garbage from the stack, so set it to false.

Signed-off-by: Colin Ian King 
Cc: Stable  [3.10+]
Acked-by: Larry Finger 
Signed-off-by: John W. Linville

rt2x00: fix beaconing on USB

2014-04-22T18:07:48+00:00

When disable beaconing we clear register with beacon and newer set it
back, what make we stop send beacons infinitely.

Cc: stable@vger.kernel.org
Signed-off-by: Stanislaw Gruszka 
Signed-off-by: John W. Linville