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mt76: mt7915: use ieee80211_free_txskb to free tx skbs

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Using dev_kfree_skb for tx skbs breaks AQL. This worked until now only
by accident, because a mac80211 issue breaks AQL on drivers with firmware
rate control that report the rate via ieee80211_tx_status_ext as struct
rate_info.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Acked-by: Toke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200812144943.91974-1-nbd@nbd.name
This commit is contained in:
Felix Fietkau 2020-08-12 16:49:43 +02:00 committed by Kalle Valo
parent d1c9da9e4c
commit b4be5a53eb
2 changed files with 7 additions and 3 deletions
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8
drivers/net/wireless/mediatek/mt76/mt7915/init.c
View File

@ -699,8 +699,12 @@ void mt7915_unregister_device(struct mt7915_dev *dev)
spin_lock_bh(&dev->token_lock);
idr_for_each_entry(&dev->token, txwi, id) {
mt7915_txp_skb_unmap(&dev->mt76, txwi);
if (txwi->skb)
dev_kfree_skb_any(txwi->skb);
if (txwi->skb) {
struct ieee80211_hw *hw;
hw = mt76_tx_status_get_hw(&dev->mt76, txwi->skb);
ieee80211_free_txskb(hw, txwi->skb);
}
mt76_put_txwi(&dev->mt76, txwi);
}
spin_unlock_bh(&dev->token_lock);

2
drivers/net/wireless/mediatek/mt76/mt7915/mac.c
View File

@ -841,7 +841,7 @@ mt7915_tx_complete_status(struct mt76_dev *mdev, struct sk_buff *skb,
if (sta || !(info->flags & IEEE80211_TX_CTL_NO_ACK))
mt7915_tx_status(sta, hw, info, NULL);
dev_kfree_skb(skb);
ieee80211_free_txskb(hw, skb);
}
void mt7915_txp_skb_unmap(struct mt76_dev *dev,