On Tue, 2018-03-27 at 14:12 +0530, Vasanthakumar Thiagarajan wrote: > > +u16 ieee80211_get_noack_map(struct ieee80211_sub_if_data *sdata, const u8 *mac) > +{ > + struct sta_info *sta; > + u16 noack_map = 0; > + > + /* Retrieve per-station noack_map config for the receiver, if any */ > + > + rcu_read_lock(); > + > + sta = sta_info_get(sdata, mac); > + if (!sta) { > + rcu_read_unlock(); > + return noack_map; > + } > + > + noack_map = sta->noack_map; > + > + rcu_read_unlock(); > + > + if (!noack_map) > + noack_map = sdata->noack_map; So this has an interesting corner case - should it be possible to have a default noack_map that's non-zero, but override it with 0 for a specific peer? It seems that it should be, which makes this code wrong. johannes