mt76: usb: avoid queue/status spinlocks while passing tx status to mac80211 (e207afa0) · Commits · 戴 / test

As already done for pcie code in commit ("mt76: avoid queue/status spinlocks while passing tx status to mac80211") make sure that no tx related spinlocks are taken during the ieee80211_tx_status call Signed-off-by:

Lorenzo Bianconi <lorenzo.bianconi@redhat.com> Signed-off-by:

Felix Fietkau <nbd@nbd.name>

drivers/net/wireless/mediatek/mt76/usb.c

+6 −4

Original line number	Diff line number	Diff line
		@@ -583,6 +583,7 @@ static void mt76u_stop_rx(struct mt76_dev *dev)
		static void mt76u_tx_tasklet(unsigned long data)
		{
		struct mt76_dev dev = (struct mt76_dev )data;
		struct mt76_queue_entry entry;
		struct mt76u_buf *buf;
		struct mt76_queue *q;
		bool wake;
		@@ -597,17 +598,18 @@ static void mt76u_tx_tasklet(unsigned long data)
		if (!buf->done \|\| !q->queued)
		break;

		dev->drv->tx_complete_skb(dev, q,
		&q->entry[q->head],
		false);

		if (q->entry[q->head].schedule) {
		q->entry[q->head].schedule = false;
		q->swq_queued--;
		}

		entry = q->entry[q->head];
		q->head = (q->head + 1) % q->ndesc;
		q->queued--;

		spin_unlock_bh(&q->lock);
		dev->drv->tx_complete_skb(dev, q, &entry, false);
		spin_lock_bh(&q->lock);
		}
		mt76_txq_schedule(dev, q);
		wake = i < IEEE80211_NUM_ACS && q->queued < q->ndesc - 8;

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