From: Sven Eckelmann Date: Tue, 22 Aug 2023 13:42:24 +0000 (+0300) Subject: wifi: ath11k: Cleanup mac80211 references on failure during tx_complete X-Git-Tag: v6.6.17~4098^2~23^2^2~15 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=29d15589f084d71a4ea8c544039c5839db0236e2;p=platform%2Fkernel%2Flinux-rpi.git wifi: ath11k: Cleanup mac80211 references on failure during tx_complete When a function is using functions from mac80211 to free an skb then it should do it consistently and not switch to the generic dev_kfree_skb_any (or similar functions). Otherwise (like in the error handlers), mac80211 will will not be aware of the freed skb and thus not clean up related information in its internal data structures. Not doing so lead in the past to filled up structure which then prevented new clients to connect. Fixes: d5c65159f289 ("ath11k: driver for Qualcomm IEEE 802.11ax devices") Fixes: 6257c702264c ("wifi: ath11k: fix tx status reporting in encap offload mode") Cc: stable@vger.kernel.org Signed-off-by: Sven Eckelmann Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/20230802-ath11k-ack_status_leak-v2-2-c0af729d6229@narfation.org --- diff --git a/drivers/net/wireless/ath/ath11k/dp_tx.c b/drivers/net/wireless/ath/ath11k/dp_tx.c index 27c976f..b85a4a0 100644 --- a/drivers/net/wireless/ath/ath11k/dp_tx.c +++ b/drivers/net/wireless/ath/ath11k/dp_tx.c @@ -344,7 +344,7 @@ ath11k_dp_tx_htt_tx_complete_buf(struct ath11k_base *ab, dma_unmap_single(ab->dev, skb_cb->paddr, msdu->len, DMA_TO_DEVICE); if (!skb_cb->vif) { - dev_kfree_skb_any(msdu); + ieee80211_free_txskb(ar->hw, msdu); return; } @@ -566,12 +566,12 @@ static void ath11k_dp_tx_complete_msdu(struct ath11k *ar, dma_unmap_single(ab->dev, skb_cb->paddr, msdu->len, DMA_TO_DEVICE); if (unlikely(!rcu_access_pointer(ab->pdevs_active[ar->pdev_idx]))) { - dev_kfree_skb_any(msdu); + ieee80211_free_txskb(ar->hw, msdu); return; } if (unlikely(!skb_cb->vif)) { - dev_kfree_skb_any(msdu); + ieee80211_free_txskb(ar->hw, msdu); return; }