ieee80211_node_critsec_decl(s);
ieee80211_free_allnodes(struct ieee80211com *ic){	struct ieee80211_node *ni;	ieee80211_node_critsec_decl(s);	ieee80211_node_critsec_begin(ic, s);	while ((ni = TAILQ_FIRST(&ic->ic_node)) != NULL)		_ieee80211_free_node(ic, ni);	ieee80211_node_critsec_end(ic, s);}