parse_LEARN(char *arg, const struct ofpact_parse_params *pp)
{
    return learn_parse(arg, pp->port_map, pp->table_map, pp->ofpacts);
}
parse_LEARN(char *arg, const struct ofpact_parse_params *pp)
{
    return learn_parse(arg, pp->port_map, pp->table_map, pp->ofpacts);
}