Drivers need to purge TX SKB when stopping. Use skb_queue_purge() can't report TX status to mac80211, causing ieee80211_free_ack_frame() warns "Have pending ack frames!". Signed-off-by: Ping-Ke Shih <pkshih@xxxxxxxxxxx> --- Hi Johannes, If this patch is accepted, please merge it ahead and I will merge the second patch via rtw tree after pulling wireless-next tree. I think this can reduce possible conflicts. --- include/net/mac80211.h | 11 +++++++++++ net/mac80211/status.c | 1 + 2 files changed, 12 insertions(+) diff --git a/include/net/mac80211.h b/include/net/mac80211.h index 0a04eaf5343c..f11844f0c80f 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -3180,6 +3180,17 @@ ieee80211_get_alt_retry_rate(const struct ieee80211_hw *hw, */ void ieee80211_free_txskb(struct ieee80211_hw *hw, struct sk_buff *skb); +/** + * ieee80211_purge_tx_queue - purge TX skb queue + * @hw: the hardware + * @skbs: the skbs + * + * Free a set of transmit skbs. Use this function when device is going to stop + * but some transmit skbs without TX status are still queued. + */ +void ieee80211_purge_tx_queue(struct ieee80211_hw *hw, + struct sk_buff_head *skbs); + /** * DOC: Hardware crypto acceleration * diff --git a/net/mac80211/status.c b/net/mac80211/status.c index dd8f857a1fbc..d1cf987de13b 100644 --- a/net/mac80211/status.c +++ b/net/mac80211/status.c @@ -1301,3 +1301,4 @@ void ieee80211_purge_tx_queue(struct ieee80211_hw *hw, while ((skb = __skb_dequeue(skbs))) ieee80211_free_txskb(hw, skb); } +EXPORT_SYMBOL(ieee80211_purge_tx_queue); -- 2.25.1
