mt76: add memory barrier to DMA queue kick

Ensure that descriptor memory has been fully written before letting the hardware read it Signed-off-by: Felix Fietkau <[email protected]>
2026-10-24 13:26:48 +00:00 · 2020-03-26 14:24:28 +01:00
parent 8e9cd01228
commit 3b4f938409
1 changed files with 1 additions and 0 deletions
@@ -137,6 +137,7 @@ mt76_dma_sync_idx(struct mt76_dev *dev, struct mt76_queue *q)
 static void
 mt76_dma_kick_queue(struct mt76_dev *dev, struct mt76_queue *q)
 {
+	wmb();
 	writel(q->head, &q->regs->cpu_idx);
 }