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mac80211: Simplify locking in ieee80211_sta_tear_down_BA_sessions() 

Simplify the locking in  ieee80211_sta_tear_down_BA_sessions() and
lock sta->ampdu_mlme.mtx over the entire function instead of
locking/unlocking it for each TID etc.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Ilan peer 2017-09-06 17:18:33 +03:00 committed by Johannes Berg
parent 1272c5d89b
commit 1281103770
1 changed files with 7 additions and 5 deletions
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12
net/mac80211/ht.c
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@ -290,13 +290,15 @@ void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta,
{
int i;
mutex_lock(&sta->ampdu_mlme.mtx);
for (i = 0; i < IEEE80211_NUM_TIDS; i++) {
__ieee80211_stop_tx_ba_session(sta, i, reason);
__ieee80211_stop_rx_ba_session(sta, i, WLAN_BACK_RECIPIENT,
WLAN_REASON_QSTA_LEAVE_QBSS,
reason != AGG_STOP_DESTROY_STA &&
reason != AGG_STOP_PEER_REQUEST);
___ieee80211_stop_tx_ba_session(sta, i, reason);
___ieee80211_stop_rx_ba_session(sta, i, WLAN_BACK_RECIPIENT,
WLAN_REASON_QSTA_LEAVE_QBSS,
reason != AGG_STOP_DESTROY_STA &&
reason != AGG_STOP_PEER_REQUEST);
}
mutex_unlock(&sta->ampdu_mlme.mtx);
/* stopping might queue the work again - so cancel only afterwards */
cancel_work_sync(&sta->ampdu_mlme.work);