454 #define	QMD_TAILQ_CHECK_TAIL(head, headname)  argument
484 #define	TAILQ_FOREACH_REVERSE(var, head, headname, field)		\  argument
485 	for ((var) = TAILQ_LAST((head), headname);			\
487 	    (var) = TAILQ_PREV((var), headname, field))
489 #define	TAILQ_FOREACH_REVERSE_SAFE(var, head, headname, field, tvar)	\  argument
490 	for ((var) = TAILQ_LAST((head), headname);			\
491 	    (var) && ((tvar) = TAILQ_PREV((var), headname, field), 1);	\
548 #define	TAILQ_LAST(head, headname)					\  argument
549 	(*(((struct headname *)((head)->tqh_last))->tqh_last))
553 #define	TAILQ_PREV(elm, headname, field)				\  argument
554 	(*(((struct headname *)((elm)->field.tqe_prev))->tqh_last))