adj_seqnum(ovs_16aligned_be32 *val, int32_t inc)
{
    put_16aligned_be32(val, htonl(ntohl(get_16aligned_be32(val)) + inc));
}
adj_seqnum(ovs_16aligned_be32 *val, int32_t inc)
{
    put_16aligned_be32(val, htonl(ntohl(get_16aligned_be32(val)) + inc));
}