mt76x02: fix hdr pointer in write txwi for USB
authorStanislaw Gruszka <sgruszka@redhat.com>
Thu, 28 Feb 2019 15:11:06 +0000 (16:11 +0100)
committerFelix Fietkau <nbd@nbd.name>
Thu, 7 Mar 2019 11:50:23 +0000 (12:50 +0100)
Since we add txwi at the begining of skb->data, it no longer point
to ieee80211_hdr. This breaks settings TS bit for probe response and
beacons.

Acked-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
drivers/net/wireless/mediatek/mt76/mt76x02_usb_core.c

index 43f07461c8d39b6045388c8bbe59b1d2b0fcd6e8..6fb52b596d421753ff24f247225136b30c15150b 100644 (file)
@@ -85,8 +85,9 @@ int mt76x02u_tx_prepare_skb(struct mt76_dev *mdev, void *data,
 
        mt76x02_insert_hdr_pad(skb);
 
-       txwi = skb_push(skb, sizeof(struct mt76x02_txwi));
+       txwi = (struct mt76x02_txwi *)(skb->data - sizeof(struct mt76x02_txwi));
        mt76x02_mac_write_txwi(dev, txwi, skb, wcid, sta, len);
+       skb_push(skb, sizeof(struct mt76x02_txwi));
 
        pid = mt76_tx_status_skb_add(mdev, wcid, skb);
        txwi->pktid = pid;