699 #define	QMD_TAILQ_CHECK_TAIL(head, headname)  argument
739 #define	TAILQ_FOREACH_REVERSE(var, head, headname, field)		\  argument
740 	for ((var) = TAILQ_LAST((head), headname);			\
742 	    (var) = TAILQ_PREV((var), headname, field))
744 #define	TAILQ_FOREACH_REVERSE_FROM(var, head, headname, field)		\  argument
745 	for ((var) = ((var) ? (var) : TAILQ_LAST((head), headname));	\
747 	    (var) = TAILQ_PREV((var), headname, field))
749 #define	TAILQ_FOREACH_REVERSE_SAFE(var, head, headname, field, tvar)	\  argument
750 	for ((var) = TAILQ_LAST((head), headname);			\
751 	    (var) && ((tvar) = TAILQ_PREV((var), headname, field), 1);	\
754 #define	TAILQ_FOREACH_REVERSE_FROM_SAFE(var, head, headname, field, tvar) \  argument
755 	for ((var) = ((var) ? (var) : TAILQ_LAST((head), headname));	\
756 	    (var) && ((tvar) = TAILQ_PREV((var), headname, field), 1);	\
813 #define	TAILQ_LAST(head, headname)					\  argument
814 	(*(((struct headname *)((head)->tqh_last))->tqh_last))
828 #define	TAILQ_PREV(elm, headname, field)				\  argument
829 	(*(((struct headname *)((elm)->field.tqe_prev))->tqh_last))