diff options
| -rw-r--r-- | drivers/net/wireless/mediatek/mt76/dma.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/dma.c b/drivers/net/wireless/mediatek/mt76/dma.c index f795548562f5..c058a02e9ba5 100644 --- a/drivers/net/wireless/mediatek/mt76/dma.c +++ b/drivers/net/wireless/mediatek/mt76/dma.c @@ -212,14 +212,14 @@ mt76_dma_add_buf(struct mt76_dev *dev, struct mt76_queue *q, { struct mt76_queue_entry *entry; struct mt76_desc *desc; - u32 ctrl; int i, idx = -1; + u32 ctrl, next; for (i = 0; i < nbufs; i += 2, buf += 2) { u32 buf0 = buf[0].addr, buf1 = 0; idx = q->head; - q->head = (q->head + 1) % q->ndesc; + next = (q->head + 1) % q->ndesc; desc = &q->desc[idx]; entry = &q->entry[idx]; @@ -239,8 +239,8 @@ mt76_dma_add_buf(struct mt76_dev *dev, struct mt76_queue *q, MT_DMA_CTL_TO_HOST; } else { if (txwi) { - q->entry[q->head].txwi = DMA_DUMMY_DATA; - q->entry[q->head].skip_buf0 = true; + q->entry[next].txwi = DMA_DUMMY_DATA; + q->entry[next].skip_buf0 = true; } if (buf[0].skip_unmap) @@ -271,6 +271,7 @@ mt76_dma_add_buf(struct mt76_dev *dev, struct mt76_queue *q, WRITE_ONCE(desc->info, cpu_to_le32(info)); WRITE_ONCE(desc->ctrl, cpu_to_le32(ctrl)); + q->head = next; q->queued++; } |