From: Felix Fietkau <nbd@nbd.name>
Date: Mon, 21 Jan 2019 16:33:38 +0000 (+0100)
Subject: mt76: avoid scheduling tx queues for powersave stations
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=d225581df3147060bc99e931b11f7cf2dcb1b2ca;p=linux.git

mt76: avoid scheduling tx queues for powersave stations

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>
---

diff --git a/drivers/net/wireless/mediatek/mt76/tx.c b/drivers/net/wireless/mediatek/mt76/tx.c
index 1ea08ce62713e..ef38e8626da95 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;