diff options
Diffstat (limited to 'drivers/net/wireless/mediatek/mt76/mt76x02_beacon.c')
| -rw-r--r-- | drivers/net/wireless/mediatek/mt76/mt76x02_beacon.c | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt76x02_beacon.c b/drivers/net/wireless/mediatek/mt76/mt76x02_beacon.c index c93e2e8749f0..3d0d3f6d28eb 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x02_beacon.c +++ b/drivers/net/wireless/mediatek/mt76/mt76x02_beacon.c @@ -26,15 +26,26 @@ static int mt76x02_write_beacon(struct mt76x02_dev *dev, int offset, struct sk_buff *skb) { int beacon_len = dev->beacon_ops->slot_size; - struct mt76x02_txwi txwi; if (WARN_ON_ONCE(beacon_len < skb->len + sizeof(struct mt76x02_txwi))) return -ENOSPC; - mt76x02_mac_write_txwi(dev, &txwi, skb, NULL, NULL, skb->len); + /* USB devices already reserve enough skb headroom for txwi's. This + * helps to save slow copies over USB. + */ + if (mt76_is_usb(&dev->mt76)) { + struct mt76x02_txwi *txwi; + + txwi = (struct mt76x02_txwi *)(skb->data - sizeof(*txwi)); + mt76x02_mac_write_txwi(dev, txwi, skb, NULL, NULL, skb->len); + skb_push(skb, sizeof(*txwi)); + } else { + struct mt76x02_txwi txwi; - mt76_wr_copy(dev, offset, &txwi, sizeof(txwi)); - offset += sizeof(txwi); + mt76x02_mac_write_txwi(dev, &txwi, skb, NULL, NULL, skb->len); + mt76_wr_copy(dev, offset, &txwi, sizeof(txwi)); + offset += sizeof(txwi); + } mt76_wr_copy(dev, offset, skb->data, skb->len); return 0; |