From:   Felix Fietkau <nbd@nbd.name>
To:     linux-wireless@vger.kernel.org
Subject: [PATCH 2/2] mt76: avoid scheduling tx queues for powersave stations
Date:   Tue, 22 Jan 2019 16:38:23 +0100
Message-Id: <20190122153823.46270-2-nbd@nbd.name>
In-Reply-To: <20190122153823.46270-1-nbd@nbd.name>
References: <20190122153823.46270-1-nbd@nbd.name>
Sender: linux-wireless-owner@vger.kernel.org
Precedence: bulk

In case a tx queue wake call arrives after a client has transitioned to
powersave, make sure that the queue is not kept active until the client
has left powersave mode

Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
 drivers/net/wireless/mediatek/mt76/tx.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/wireless/mediatek/mt76/tx.c b/drivers/net/wireless/mediatek/mt76/tx.c
index 1ea08ce62713..ef38e8626da9 100644
--- a/drivers/net/wireless/mediatek/mt76/tx.c
+++ b/drivers/net/wireless/mediatek/mt76/tx.c
@@ -396,6 +396,11 @@ mt76_txq_send_burst(struct mt76_dev *dev, struct mt76_queue *hwq,
 	bool probe;
 	int idx;
 
+	if (test_bit(MT_WCID_FLAG_PS, &wcid->flags)) {
+		*empty = true;
+		return 0;
+	}
+
 	skb = mt76_txq_dequeue(dev, mtxq, false);
 	if (!skb) {
 		*empty = true;
-- 
2.17.0