This is a note to let you know that I've just added the patch titled mac80211: mark TX-during-stop for TX in in_reconfig to the 5.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: mac80211-mark-tx-during-stop-for-tx-in-in_reconfig.patch and it can be found in the queue-5.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From db7205af049d230e7e0abf61c1e74c1aab40f390 Mon Sep 17 00:00:00 2001 From: Johannes Berg <johannes.berg@xxxxxxxxx> Date: Mon, 29 Nov 2021 15:32:39 +0200 Subject: mac80211: mark TX-during-stop for TX in in_reconfig From: Johannes Berg <johannes.berg@xxxxxxxxx> commit db7205af049d230e7e0abf61c1e74c1aab40f390 upstream. Mark TXQs as having seen transmit while they were stopped if we bail out of drv_wake_tx_queue() due to reconfig, so that the queue wake after this will make them catch up. This is particularly necessary for when TXQs are used for management packets since those TXQs won't see a lot of traffic that'd make them catch up later. Cc: stable@xxxxxxxxxxxxxxx Fixes: 4856bfd23098 ("mac80211: do not call driver wake_tx_queue op during reconfig") Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx> Signed-off-by: Luca Coelho <luciano.coelho@xxxxxxxxx> Link: https://lore.kernel.org/r/iwlwifi.20211129152938.4573a221c0e1.I0d1d5daea3089be3fc0dccc92991b0f8c5677f0c@changeid Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- net/mac80211/driver-ops.h | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) --- a/net/mac80211/driver-ops.h +++ b/net/mac80211/driver-ops.h @@ -1202,8 +1202,11 @@ static inline void drv_wake_tx_queue(str { struct ieee80211_sub_if_data *sdata = vif_to_sdata(txq->txq.vif); - if (local->in_reconfig) + /* In reconfig don't transmit now, but mark for waking later */ + if (local->in_reconfig) { + set_bit(IEEE80211_TXQ_STOP_NETIF_TX, &txq->flags); return; + } if (!check_sdata_in_driver(sdata)) return; Patches currently in stable-queue which might be from johannes.berg@xxxxxxxxx are queue-5.4/mac80211-mark-tx-during-stop-for-tx-in-in_reconfig.patch queue-5.4/mac80211-send-addba-requests-using-the-tid-queue-of-the-aggregation-session.patch