tree 064999e0904c64484fe754703186183f9130ecd4
parent a6d2055b02dde1067075795274672720baadd3ca
author Felix Fietkau <nbd@openwrt.org> 1276317235 -0400
committer John W. Linville <linville@tuxdriver.com> 1276544371 -0400

ath9k: fix queue stopping threshold

ath9k tries to prevent WMM queue tx buffer starvation caused by
traffic on different queues by limiting the number of pending frames
in a tx queue (tracked in the ath_buf structure). This had a leak
issue, because the a skb can be reassigned to a different ath_buf
in the tx path, causing the pending frame counter to become inaccurate.

To fix this, track the number of frames in an array in the softc,
using the mac80211 queue mapping as index.

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