prefix_equal
if (!prefix_equal(li->li_subnet, addr, li->li_subnet_len))
extern boolean_t prefix_equal(struct in6_addr, struct in6_addr, uint_t);
prefix_equal(po->nd_opt_pi_prefix, pr->pr_prefix, plen)) {
if (prefix_equal(po->nd_opt_pi_prefix, pr->pr_prefix,
prefix_equal(po->nd_opt_pi_prefix, pr->pr_prefix, plen)) {
prefix_equal(prefix, pr->pr_prefix, prefixlen))
prefix_equal(pr->pr_prefix, pr2->pr_prefix,
prefix_equal(prefix, adv_pr->adv_pr_prefix, prefixlen))
extern boolean_t prefix_equal(struct in6_addr p1, struct in6_addr p2,