[PATCH AUTOSEL 5.13 123/189] mt76: dma: use ieee80211_tx_status_ext to free packets when tx fails
From: Sasha Levin <sashal@kernel.org>
Date: 2021-07-06 11:23:05
Also in:
linux-mediatek, linux-wireless, lkml, netdev, stable
Subsystem:
mediatek mt76 wireless lan driver, the rest · Maintainers:
Felix Fietkau, Lorenzo Bianconi, Ryder Lee, Linus Torvalds
From: Felix Fietkau <nbd@nbd.name> [ Upstream commit 94e4f5794627a80ce036c35b32a9900daeb31be3 ] Fixes AQL issues on full queues, especially with 802.3 encap offload Signed-off-by: Felix Fietkau <nbd@nbd.name> Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/net/wireless/mediatek/mt76/dma.c | 18 ++++++++++++------ 1 file changed, 12 insertions(+), 6 deletions(-)
diff --git a/drivers/net/wireless/mediatek/mt76/dma.c b/drivers/net/wireless/mediatek/mt76/dma.c
index 72b1cc0ecfda..e5c324dd24f9 100644
--- a/drivers/net/wireless/mediatek/mt76/dma.c
+++ b/drivers/net/wireless/mediatek/mt76/dma.c@@ -349,6 +349,9 @@ mt76_dma_tx_queue_skb(struct mt76_dev *dev, struct mt76_queue *q, struct sk_buff *skb, struct mt76_wcid *wcid, struct ieee80211_sta *sta) { + struct ieee80211_tx_status status = { + .sta = sta, + }; struct mt76_tx_info tx_info = { .skb = skb, };
@@ -360,11 +363,9 @@ mt76_dma_tx_queue_skb(struct mt76_dev *dev, struct mt76_queue *q, u8 *txwi; t = mt76_get_txwi(dev); - if (!t) { - hw = mt76_tx_status_get_hw(dev, skb); - ieee80211_free_txskb(hw, skb); - return -ENOMEM; - } + if (!t) + goto free_skb; + txwi = mt76_get_txwi_ptr(dev, t); skb->prev = skb->next = NULL;
@@ -427,8 +428,13 @@ mt76_dma_tx_queue_skb(struct mt76_dev *dev, struct mt76_queue *q, } #endif - dev_kfree_skb(tx_info.skb); mt76_put_txwi(dev, t); + +free_skb: + status.skb = tx_info.skb; + hw = mt76_tx_status_get_hw(dev, tx_info.skb); + ieee80211_tx_status_ext(hw, &status); + return ret; }
--
2.30.2
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