icmp6off         1946 netinet6/ip6_output.c 	const int icmp6off = offsetof(struct icmp6_hdr, icmp6_cksum);
icmp6off         1979 netinet6/ip6_output.c 				if (optval != icmp6off)
icmp6off         1987 netinet6/ip6_output.c 				optval = icmp6off;