occupied 398 net80211/ieee80211_node.c u_char occupied[howmany(IEEE80211_CHAN_MAX, NBBY)]; occupied 407 net80211/ieee80211_node.c setbit(occupied, ieee80211_chan2ieee(ic, ni->ni_chan)); occupied 409 net80211/ieee80211_node.c if (isset(ic->ic_chan_active, i) && isclr(occupied, i))