Commit 6425791d authored by Felix Fietkau's avatar Felix Fietkau
Browse files

mt76: mt7915: fix processing txfree events 



In the MT7915 info, the fields for the WLAN index / queue overlap with the
token id, and the MT_TX_FREE_PAIR bit indicates, which one is present.

If MT_TX_FREE_PAIR is set, skip processing the token index, since the data
will not be valid.

This fixes accidentally freeing tokens which are still in use by the
hardware with a wrong station pointer.

Signed-off-by: default avatarFelix Fietkau <nbd@nbd.name>
parent 8aa2c6f4

drivers/net/wireless/mediatek/mt76/mt7915/mac.c

+1 −0
Original line number Diff line number Diff line
@@ -972,6 +972,7 @@ void mt7915_mac_tx_free(struct mt7915_dev *dev, struct sk_buff *skb) 
			if (list_empty(&msta->poll_list))

				list_add_tail(&msta->poll_list, &dev->sta_poll_list);

			spin_unlock_bh(&dev->sta_poll_lock);

			continue;

		}



		msdu = FIELD_GET(MT_TX_FREE_MSDU_ID, info);