mac80211: don't stop all queues when flushing

There is no need to stop all queues when we want to flush specific
queues, so stop only the queues that will be flushed.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

net/mac80211/util.c

@@ -551,12 +551,12 @@ void ieee80211_flush_queues(struct ieee80211_local *local,
 		queues = BIT(local->hw.queues) - 1;
 	}
 
-	ieee80211_stop_queues_by_reason(&local->hw, IEEE80211_MAX_QUEUE_MAP,
+	ieee80211_stop_queues_by_reason(&local->hw, queues,
 					IEEE80211_QUEUE_STOP_REASON_FLUSH);
 
 	drv_flush(local, sdata, queues, false);
 
-	ieee80211_wake_queues_by_reason(&local->hw, IEEE80211_MAX_QUEUE_MAP,
+	ieee80211_wake_queues_by_reason(&local->hw, queues,
 					IEEE80211_QUEUE_STOP_REASON_FLUSH);
 }