ipsec6_common_input_cb
int ipsec6_common_input_cb(struct mbuf *, struct secasvar *, int, int);
(void)ipsec6_common_input_cb(m, sav, skip, protoff); \
(void)ipsec6_common_input_cb(m, sav, skip, protoff); \
(void)ipsec6_common_input_cb(m, sav, skip, protoff); \