IPV6_ADDR_PREFERENCES 841 net/ipv6/ipv6_sockglue.c case IPV6_ADDR_PREFERENCES: IPV6_ADDR_PREFERENCES 1337 net/ipv6/ipv6_sockglue.c case IPV6_ADDR_PREFERENCES: IPV6_ADDR_PREFERENCES 2292 net/sunrpc/xprtsock.c kernel_setsockopt(sock, SOL_IPV6, IPV6_ADDR_PREFERENCES,