is_spoofed_6rd 618 net/ipv6/sit.c if (unlikely(is_spoofed_6rd(tunnel, iph->saddr, &ipv6h->saddr))) { is_spoofed_6rd 625 net/ipv6/sit.c if (likely(!is_spoofed_6rd(tunnel, iph->daddr, &ipv6h->daddr)))