diff --git a/net/mac80211/agg-tx.c b/net/mac80211/agg-tx.c
index 4152ed1..eb9df22 100644
--- a/net/mac80211/agg-tx.c
+++ b/net/mac80211/agg-tx.c
@@ -445,7 +445,7 @@
 
 	trace_api_start_tx_ba_session(pubsta, tid);
 
-	if (WARN_ON(!local->ops->ampdu_action))
+	if (WARN_ON_ONCE(!local->ops->ampdu_action))
 		return -EINVAL;
 
 	if ((tid >= IEEE80211_NUM_TIDS) ||