FOU_ATTR_AF
if (info->attrs[FOU_ATTR_AF]) {
u8 family = nla_get_u8(info->attrs[FOU_ATTR_AF]);
if (nla_put_u8(msg, FOU_ATTR_AF, fou->sock->sk->sk_family) ||
[FOU_ATTR_AF] = { .type = NLA_U8, },