IEEE80211_CHAN_HT40
(cm->flags & IEEE80211_CHAN_HT40)) {
#define IEEE80211_CHAN_HT (IEEE80211_CHAN_HT20 | IEEE80211_CHAN_HT40)
(((_c)->ic_flags & IEEE80211_CHAN_HT40) != 0)
if (c == NULL && (htflags & IEEE80211_CHAN_HT40)) {