Commit ada15125 authored by Johannes Berg's avatar Johannes Berg Committed by John W. Linville
Browse files

mac80211: debounce queue stop/wake 



When the queue status changes we need to do a fair
bit of work, so ignore no-op changes early.

Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent ded81f6b

net/mac80211/util.c

+6 −0
Original line number Diff line number Diff line
@@ -276,6 +276,9 @@ static void __ieee80211_wake_queue(struct ieee80211_hw *hw, int queue, 
	if (WARN_ON(queue >= hw->queues))

		return;



	if (!test_bit(reason, &local->queue_stop_reasons[queue]))

		return;



	__clear_bit(reason, &local->queue_stop_reasons[queue]);



	if (local->queue_stop_reasons[queue] != 0)
@@ -323,6 +326,9 @@ static void __ieee80211_stop_queue(struct ieee80211_hw *hw, int queue, 
	if (WARN_ON(queue >= hw->queues))

		return;



	if (test_bit(reason, &local->queue_stop_reasons[queue]))

		return;



	__set_bit(reason, &local->queue_stop_reasons[queue]);



	rcu_read_lock();