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path: root/drivers/net/wireless/mediatek/mt76/mt76x02_usb_core.c
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Diffstat (limited to 'drivers/net/wireless/mediatek/mt76/mt76x02_usb_core.c')
-rw-r--r--drivers/net/wireless/mediatek/mt76/mt76x02_usb_core.c17
1 files changed, 10 insertions, 7 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt76x02_usb_core.c b/drivers/net/wireless/mediatek/mt76/mt76x02_usb_core.c
index 81970cf777c0..43f07461c8d3 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76x02_usb_core.c
+++ b/drivers/net/wireless/mediatek/mt76/mt76x02_usb_core.c
@@ -49,7 +49,12 @@ int mt76x02u_skb_dma_info(struct sk_buff *skb, int port, u32 flags)
FIELD_PREP(MT_TXD_INFO_DPORT, port) | flags;
put_unaligned_le32(info, skb_push(skb, sizeof(info)));
+ /* Add zero pad of 4 - 7 bytes */
pad = round_up(skb->len, 4) + 4 - skb->len;
+
+ /* First packet of a A-MSDU burst keeps track of the whole burst
+ * length, need to update lenght of it and the last packet.
+ */
skb_walk_frags(skb, iter) {
last = iter;
if (!iter->next) {
@@ -59,11 +64,10 @@ int mt76x02u_skb_dma_info(struct sk_buff *skb, int port, u32 flags)
}
}
- if (unlikely(pad)) {
- if (skb_pad(last, pad))
- return -ENOMEM;
- __skb_put(last, pad);
- }
+ if (skb_pad(last, pad))
+ return -ENOMEM;
+ __skb_put(last, pad);
+
return 0;
}
@@ -87,8 +91,7 @@ int mt76x02u_tx_prepare_skb(struct mt76_dev *mdev, void *data,
pid = mt76_tx_status_skb_add(mdev, wcid, skb);
txwi->pktid = pid;
- if ((pid && pid != MT_PACKET_ID_NO_ACK) ||
- q2ep(q->hw_idx) == MT_EP_OUT_HCCA)
+ if (pid >= MT_PACKET_ID_FIRST || q2ep(q->hw_idx) == MT_EP_OUT_HCCA)
qsel = MT_QSEL_MGMT;
else
qsel = MT_QSEL_EDCA;