ipf_derefrule
(void) ipf_derefrule(softc, &fr);
if (ipf_derefrule(softc, &fp) == 0)
(void) ipf_derefrule(softc, &fr);
(void) ipf_derefrule(softc, &f);
(void) ipf_derefrule(softc, (frentry_t **)datap);
(void) ipf_derefrule(softc, &fr);
(void) ipf_derefrule(softc, &fr);
extern int ipf_derefrule(ipf_main_softc_t *, frentry_t **);
(void) ipf_derefrule(softc, &fra->ipfr_rule);
(void) ipf_derefrule(softc, &fr);
(void) ipf_derefrule(softc, &nat->nat_fr);
(void) ipf_derefrule(softc, &fr);