mac80211: warn only once if ampdu_action isn't assigned

New drivers that might not support ampdu_action yet while in
development cause a lot of warnings, use WARN_ON_ONCE instead.

Signed-off-by: T Krushna Chaitanya <chaitanyatk@posedge.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/mac80211/agg-tx.c b/net/mac80211/agg-tx.c
index 4152ed1..eb9df22 100644 (file)
--- a/net/mac80211/agg-tx.c
+++ b/net/mac80211/agg-tx.c
@@ -445,7 +445,7 @@ int ieee80211_start_tx_ba_session(struct ieee80211_sta *pubsta, u16 tid,
 
        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) ||