IEEE80211_DEVCAPS_SIZE
dc = malloc(IEEE80211_DEVCAPS_SIZE(MAXCHAN));
dc = malloc(IEEE80211_DEVCAPS_SIZE(1));
dc = malloc(IEEE80211_DEVCAPS_SIZE(MAXCHAN));
IEEE80211_MALLOC(IEEE80211_DEVCAPS_SIZE(maxchans), M_TEMP,
IEEE80211_DEVCAPS_SIZE((_dc)->dc_chaninfo.ic_nchans)