icmp6_ifstat
((struct in6_ifextra *)((ifp)->if_afdata[AF_INET6]))->icmp6_ifstat->tag++; \
ext->icmp6_ifstat =
(struct icmp6_ifstat *)kmalloc(sizeof(struct icmp6_ifstat),
bzero(ext->icmp6_ifstat, sizeof(*ext->icmp6_ifstat));
kfree(ext->icmp6_ifstat, M_IFADDR);
ifr->ifr_ifru.ifru_icmp6stat = *xtra->icmp6_ifstat;
struct icmp6_ifstat *icmp6_ifstat;
struct icmp6_ifstat ifru_icmp6stat;