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| author | Johannes Berg <johannes.berg@intel.com> | 2012-03-28 11:04:27 +0200 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2012-04-10 14:54:11 -0400 |
| commit | ada151252655b63409860e0795993cb369e667cc (patch) | |
| tree | f92860d8aeec0947ef28a33e9b474e234d65665f /net | |
| parent | ded81f6ba934e792e441f20178683608cbc0b5cb (diff) | |
| download | linux-ada151252655b63409860e0795993cb369e667cc.tar.gz linux-ada151252655b63409860e0795993cb369e667cc.tar.bz2 linux-ada151252655b63409860e0795993cb369e667cc.zip | |
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: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net')
| -rw-r--r-- | net/mac80211/util.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/net/mac80211/util.c b/net/mac80211/util.c index 2b62307825d4..ef725cabb099 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -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(); |