set_cached_conn(const struct nat_action_info_t *nat_action_info,
                const struct conn_lookup_ctx *ctx, struct conn *conn,
                struct dp_packet *pkt)
{
    if (OVS_LIKELY(!nat_action_info)) {
        pkt->md.conn = conn;
        pkt->md.reply = ctx->reply;
        pkt->md.icmp_related = ctx->icmp_related;
    } else {
        pkt->md.conn = NULL;
    }
}
set_cached_conn(const struct nat_action_info_t *nat_action_info,
                const struct conn_lookup_ctx *ctx, struct conn *conn,
                struct dp_packet *pkt)
{
    if (OVS_LIKELY(!nat_action_info)) {
        pkt->md.conn = conn;
        pkt->md.reply = ctx->reply;
        pkt->md.icmp_related = ctx->icmp_related;
    } else {
        pkt->md.conn = NULL;
    }
}