linux-stable.git/drivers/net/wireless/ath, branch v3.12

ath9k: fix tx queue scheduling after channel changes

2013-10-07T17:34:43+00:00

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

Cc: stable@vger.kernel.org
Signed-off-by: Felix Fietkau 
Signed-off-by: John W. Linville

ath9k: fix powersave response handling for BA session packets

2013-09-30T20:19:29+00:00

When a packet is passed from mac80211 to the driver with the
IEEE80211_TX_CTL_PS_RESPONSE flag set, it bypasses the normal driver
internal queueing and goes directly to the UAPSD queue.

When that happens, packets that are part of a BlockAck session still
need to be tracked as such inside the driver, otherwise it will create
discrepancies in the receiver BA reorder window, causing traffic stalls.
This only happens in AP mode with powersave-enabled clients.

This patch fixes the regression introduced in the commit
"ath9k: use software queues for un-aggregated data packets"

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

ath9k: add txq locking for ath_tx_aggr_start

2013-09-26T18:02:30+00:00

Prevents race conditions when un-aggregated frames are pending in the
driver.

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

ath9k: don't use BAW tracking on PS responses for non-AMPDU packets

2013-09-26T18:02:29+00:00

When .release_buffered_frames was implemented, only A-MPDU packets were
buffered internally. Now that this has changed, the BUF_AMPDU flag needs
to be checked before calling ath_tx_addto_baw

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

ath9k: Fix regression in LNA diversity

2013-09-26T18:02:29+00:00

The commit "ath9k: Optimize LNA check" tried
to use the "rs_firstaggr" flag to optimize the LNA
combining algorithm when processing subframes in
an A-MPDU. This doesn't appear to work well in practice,
so revert it and use the old method of relying on
"rs_moreaggr".

Cc: stable@vger.kernel.org # 3.11
Signed-off-by: Sujith Manoharan 
Signed-off-by: John W. Linville

ath9k: do not link bf_next across multiple A-MPDUs

2013-09-26T18:02:28+00:00

This might trip up tx completion processing, although the condition that
triggers this should not (yet) occur in practice.

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

ath9k: fix stale flag handling on buffer clone

2013-09-26T18:02:28+00:00

Fixes a regression from commit
"ath9k: shrink a few data structures by reordering fields"

When cloning a buffer, the stale flag (part of bf_state now) needs to be
reset after copying the state to prevent tx processing hangs.

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

drivers/net: Convert uses of compare_ether_addr to ether_addr_equal

2013-09-04T02:28:04+00:00

Use the new bool function ether_addr_equal to add
some clarity and reduce the likelihood for misuse
of compare_ether_addr for sorting.

Done via cocci script: (and a little typing)

$ cat compare_ether_addr.cocci
@@
expression a,b;
@@
-	!compare_ether_addr(a, b)
+	ether_addr_equal(a, b)

@@
expression a,b;
@@
-	compare_ether_addr(a, b)
+	!ether_addr_equal(a, b)

@@
expression a,b;
@@
-	!ether_addr_equal(a, b) == 0
+	ether_addr_equal(a, b)

@@
expression a,b;
@@
-	!ether_addr_equal(a, b) != 0
+	!ether_addr_equal(a, b)

@@
expression a,b;
@@
-	ether_addr_equal(a, b) == 0
+	!ether_addr_equal(a, b)

@@
expression a,b;
@@
-	ether_addr_equal(a, b) != 0
+	ether_addr_equal(a, b)

@@
expression a,b;
@@
-	!!ether_addr_equal(a, b)
+	ether_addr_equal(a, b)

Signed-off-by: Joe Perches 
Signed-off-by: David S. Miller

ath9k: Enable D3/L1 ASPM fix for AR9462

2013-08-28T17:58:27+00:00

AR9462 requires this HW fix for ASPM to work properly.
Also, since WARegVal is used only for the AR8003 family,
use AR_SREV_9300_20_OR_LATER.

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

ath9k: Remove unused ANI commands

2013-08-28T17:58:27+00:00

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