encode_POP_QUEUE(const struct ofpact_null *null OVS_UNUSED,
                 enum ofp_version ofp_version OVS_UNUSED, struct ofpbuf *out)
{
    put_NXAST_POP_QUEUE(out);
}
encode_POP_QUEUE(const struct ofpact_null *null OVS_UNUSED,
                 enum ofp_version ofp_version OVS_UNUSED, struct ofpbuf *out)
{
    put_NXAST_POP_QUEUE(out);
}