NFACCT_FLAGS
if (tb[NFACCT_FLAGS]) {
flags = ntohl(nla_get_be32(tb[NFACCT_FLAGS]));
if (nla_put_be32(skb, NFACCT_FLAGS, htonl(old_flags)) ||
[NFACCT_FLAGS] = { .type = NLA_U32 },