IEEE80211_CHAN_INDOOR_ONLY
flags |= IEEE80211_CHAN_INDOOR_ONLY;
chan->flags |= IEEE80211_CHAN_INDOOR_ONLY;
!(chan->flags & IEEE80211_CHAN_INDOOR_ONLY))
(chan->flags & IEEE80211_CHAN_INDOOR_ONLY))
if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) &&
channel_flags |= IEEE80211_CHAN_INDOOR_ONLY;