From cd8ffc800ce18e558335c4946b2217864fc16045 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Mon, 23 Mar 2009 17:28:41 +0100 Subject: mac80211: fix aggregation to not require queue stop Instead of stopping the entire AC queue when enabling aggregation (which was only done for hardware with aggregation queues) buffer the packets for each station, and release them to the pending skb queue once aggregation is turned on successfully. We get a little more code, but it becomes conceptually simpler and we can remove the entire virtual queue mechanism from mac80211 in a follow-up patch. This changes how mac80211 behaves towards drivers that support aggregation but have no hardware queues -- those drivers will now not be handed packets while the aggregation session is being established, but only after it has been fully established. Signed-off-by: Johannes Berg Signed-off-by: John W. Linville --- net/mac80211/sta_info.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'net/mac80211/sta_info.c') diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c index 4ba3c540fcf3..dd3593c1fd23 100644 --- a/net/mac80211/sta_info.c +++ b/net/mac80211/sta_info.c @@ -239,6 +239,11 @@ void sta_info_destroy(struct sta_info *sta) tid_tx = sta->ampdu_mlme.tid_tx[i]; if (tid_tx) { del_timer_sync(&tid_tx->addba_resp_timer); + /* + * STA removed while aggregation session being + * started? Bit odd, but purge frames anyway. + */ + skb_queue_purge(&tid_tx->pending); kfree(tid_tx); } } -- cgit v1.2.3