pbi0 774 net/ipv6/sit.c unsigned int pbw0, pbi0; pbi0 779 net/ipv6/sit.c pbi0 = tunnel->ip6rd.prefixlen & 0x1f; pbi0 782 net/ipv6/sit.c (ntohl(v6dst->s6_addr32[pbw0]) << pbi0) >> pbi0 785 net/ipv6/sit.c pbi1 = pbi0 - tunnel->ip6rd.relay_prefixlen;