linux-stable.git/drivers/net/wireless/ath, branch linux-3.11.y

ath9k: fix tx queue scheduling after channel changes

2013-11-13T03:08:07+00:00

commit ec30326ea773900da210c495e14cfeb532550ba2 upstream.

Otherwise, if queues are full during a scan, tx scheduling does not
resume after switching back to the home channel.

Signed-off-by: Felix Fietkau 
Signed-off-by: John W. Linville 
Signed-off-by: Greg Kroah-Hartman

ath9k: avoid accessing MRC registers on single-chain devices

2013-09-27T00:21:45+00:00

commit a1c781bb20ac1e03280e420abd47a99eb8bbdd3b upstream.

They are not implemented, and accessing them might trigger errors

Signed-off-by: Felix Fietkau 
Signed-off-by: John W. Linville 
Signed-off-by: Greg Kroah-Hartman

ath9k: fix rx descriptor related race condition

2013-09-27T00:21:45+00:00

commit e96542e55a2aacf4bdeccfe2f17b77c4895b4df2 upstream.

Similar to a race condition that exists in the tx path, the hardware
might re-read the 'next' pointer of a descriptor of the last completed
frame. This only affects non-EDMA (pre-AR93xx) devices.

To deal with this race, defer clearing and re-linking a completed rx
descriptor until the next one has been processed.

Signed-off-by: Felix Fietkau 
Signed-off-by: John W. Linville 
Signed-off-by: Greg Kroah-Hartman

ath9k: always clear ps filter bit on new assoc

2013-09-27T00:21:45+00:00

commit 026d5b07c03458f9c0ccd19c3850564a5409c325 upstream.

Otherwise in some cases, EAPOL frames might be filtered during the
initial handshake, causing delays and assoc failures.

Signed-off-by: Felix Fietkau 
Signed-off-by: John W. Linville 
Signed-off-by: Greg Kroah-Hartman

ath9k: Enable PLL fix only for AR9340/AR9330

2013-08-22T18:21:04+00:00

The PLL hang workaround is required only for AR9330 and
AR9340. This issue was first observed on an AP121 and the WAR
is enabled for AR9340 also (DB120 etc.), since it uses a PLL
design identical to AR9330. This is not required for AR9485 and AR9550.

Various bugs have been reported regarding this:

https://bugzilla.redhat.com/show_bug.cgi?id=997217
https://bugzilla.redhat.com/show_bug.cgi?id=994648

Cc: stable@vger.kernel.org
Signed-off-by: Sujith Manoharan 
Signed-off-by: John W. Linville

ath9k_htc: Restore skb headroom when returning skb to mac80211

2013-08-22T18:21:03+00:00

ath9k_htc adds padding between the 802.11 header and the payload during
TX by moving the header. When handing the frame back to mac80211 for TX
status handling the header is not moved back into its original position.
This can result in a too small skb headroom when entering ath9k_htc
again (due to a soft retransmission for example) causing an
skb_under_panic oops.

Fix this by moving the 802.11 header back into its original position
before returning the frame to mac80211 as other drivers like rt2x00
or ath5k do.

Reported-by: Marc Kleine-Budde 
Signed-off-by: Helmut Schaa 
Tested-by: Marc Kleine-Budde 
Signed-off-by: Marc Kleine-Budde 
Cc: stable@vger.kernel.org
Signed-off-by: John W. Linville

Merge branch 'for-john' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211

2013-08-22T15:35:22+00:00

mac80211: add a flag to indicate CCK support for HT clients

2013-08-21T13:03:25+00:00

brcm80211 cannot handle sending frames with CCK rates as part of an
A-MPDU session. Other drivers may have issues too. Set the flag in all
drivers that have been tested with CCK rates.

This fixes a reported brcmsmac regression introduced in
commit ef47a5e4f1aaf1d0e2e6875e34b2c9595897bef6
"mac80211/minstrel_ht: fix cck rate sampling"

Cc: stable@vger.kernel.org # 3.10
Reported-by: Tom Gundersen 
Signed-off-by: Felix Fietkau 
Signed-off-by: Johannes Berg

Merge branch 'for-linville-current' of git://github.com/kvalo/ath

2013-07-29T18:40:16+00:00

ath: wil6210: Fix build error

2013-07-22T20:04:08+00:00

Building driver wil6210 in 3.10 and 3.11 kernels yields the following errors:

  CC [M]  drivers/net/wireless/ath/wil6210/debugfs.o
drivers/net/wireless/ath/wil6210/debugfs.c: In function 'wil_print_ring':
drivers/net/wireless/ath/wil6210/debugfs.c:163:11: error: pointer targets in passing argument 5 of 'hex_dump_to_buffer' differ in signedness [-Werror=pointer-sign]
           false);
           ^
In file included from include/linux/kernel.h:13:0,
                 from include/linux/cache.h:4,
                 from include/linux/time.h:4,
                 from include/linux/stat.h:18,
                 from include/linux/module.h:10,
                 from drivers/net/wireless/ath/wil6210/debugfs.c:17:
include/linux/printk.h:361:13: note: expected 'char *' but argument is of type 'unsigned char *'
 extern void hex_dump_to_buffer(const void *buf, size_t len,
             ^
drivers/net/wireless/ath/wil6210/debugfs.c: In function 'wil_txdesc_debugfs_show':
drivers/net/wireless/ath/wil6210/debugfs.c:429:10: error: pointer targets in passing argument 5 of 'hex_dump_to_buffer' differ in signedness [-Werror=pointer-sign]
          sizeof(printbuf), false);
          ^
In file included from include/linux/kernel.h:13:0,
                 from include/linux/cache.h:4,
                 from include/linux/time.h:4,
                 from include/linux/stat.h:18,
                 from include/linux/module.h:10,
                 from drivers/net/wireless/ath/wil6210/debugfs.c:17:
include/linux/printk.h:361:13: note: expected 'char *' but argument is of type 'unsigned char *'
 extern void hex_dump_to_buffer(const void *buf, size_t len,
             ^
cc1: all warnings being treated as errors
make[5]: *** [drivers/net/wireless/ath/wil6210/debugfs.o] Error 1
make[4]: *** [drivers/net/wireless/ath/wil6210] Error 2
make[3]: *** [drivers/net/wireless/ath] Error 2
make[2]: *** [drivers/net/wireless] Error 2
make[1]: *** [drivers/net] Error 2
make: *** [drivers] Error 2

These errors are fixed by changing the type of the buffer from "unsigned char *" to "char *".

Reported-by: Thomas Fjellstrom 
Tested-by: Thomas Fjellstrom 
Signed-off-by: Larry Finger 
Cc: Stable   [3.10]
Cc: Thomas Fjellstrom 
Signed-off-by: Vladimir Kondratiev 
Signed-off-by: John W. Linville