ath9k: fix queue stopping threshold

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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>

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This commit is contained in:

Felix Fietkau 2010-06-12 00:33:55 -04:00 • committed by John W. Linville

parent a6d2055b02

commit 97923b14a5

2 changed files with 30 additions and 26 deletions

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3

drivers/net/wireless/ath/ath9k/ath9k.h

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53

drivers/net/wireless/ath/ath9k/xmit.c

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