ip6_savecontrol
ip6_savecontrol(inp, &inp->inp_options, ip6, m);
ip6_savecontrol(inp, &inp->inp_options,
ip6_savecontrol(last, &opts, ip6, n);
ip6_savecontrol(last, &opts, ip6, m);
void ip6_savecontrol(struct inpcb *, struct mbuf **, struct ip6_hdr *,
ip6_savecontrol(last, &opts, ip6, n);
ip6_savecontrol(in6p_ip, &opts, ip6, m);
ip6_savecontrol(in6p_ip, m, &opts);
ip6_savecontrol(in6p_ip, m, &opts, NULL);
ip6_savecontrol(in6p_ip, &opts, ip6, m);
ip6_savecontrol(in6p_ip, m, &opts);
ip6_savecontrol(inp, &opts, ip6, n);