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mac80211: mark TX-during-stop for TX in in_reconfig

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commit db7205af04 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@vger.kernel.org
Fixes: 4856bfd230 ("mac80211: do not call driver wake_tx_queue op during reconfig")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20211129152938.4573a221c0e1.I0d1d5daea3089be3fc0dccc92991b0f8c5677f0c@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Johannes Berg
2021-11-29 15:32:39 +02:00
committed by Greg Kroah-Hartman
parent 15640e40e3
commit 29bb131dbb
1 changed files with 4 additions and 1 deletions
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5
net/mac80211/driver-ops.h
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@@ -1201,8 +1201,11 @@ static inline void drv_wake_tx_queue(struct ieee80211_local *local,
{
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;