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From: Felix Fietkau <nbd@nbd.name>
To: linux-wireless@vger.kernel.org
Cc: johannes@sipsolutions.net, "Toke Høiland-Jørgensen" <toke@redhat.com>
Subject: [PATCH] mac80211: un-schedule TXQs on powersave start
Date: Tue, 19 Mar 2019 11:49:04 +0100	[thread overview]
Message-ID: <20190319104904.42152-1-nbd@nbd.name> (raw)

Once a station enters powersave, its queues should not be returned by
ieee80211_next_txq() anymore. They will be re-scheduled again after the
station has woken up again

Fixes: 1866760096bf4 ("mac80211: Add TXQ scheduling API")
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
 net/mac80211/rx.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 295535b75184..7a7738942034 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -1568,7 +1568,15 @@ static void sta_ps_start(struct sta_info *sta)
 		return;
 
 	for (tid = 0; tid < IEEE80211_NUM_TIDS; tid++) {
-		if (txq_has_queue(sta->sta.txq[tid]))
+		struct ieee80211_txq *txq = sta->sta.txq[tid];
+		struct txq_info *txqi = to_txq_info(txq);
+
+		spin_lock_bh(&local->active_txq_lock[txq->ac]);
+		if (!list_empty(&txqi->schedule_order))
+			list_del_init(&txqi->schedule_order);
+		spin_unlock_bh(&local->active_txq_lock[txq->ac]);
+
+		if (txq_has_queue(txq))
 			set_bit(tid, &sta->txq_buffered_tids);
 		else
 			clear_bit(tid, &sta->txq_buffered_tids);
-- 
2.17.0


                 reply	other threads:[~2019-03-19 10:49 UTC|newest]

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