struct ieee80211_node *ni = (*ic->ic_node_alloc)(ic);
struct ieee80211_node *ni = ieee80211_alloc_node_helper(ic);
ieee80211_alloc_node(struct ieee80211com *ic, u_int8_t *macaddr){	struct ieee80211_node *ni = (*ic->ic_node_alloc)(ic);	if (ni != NULL)		ieee80211_setup_node(ic, ni, macaddr);	else		ic->ic_stats.is_rx_nodealloc++;	return ni;}