unsupported_nesting(enum ofpact_type action, enum ofpact_type outer_action,
                    char **errorp)
{
    verify_error(errorp, "%s action doesn't support nested action %s",
                 ofpact_name(outer_action), ofpact_name(action));
    return OFPERR_OFPBAC_BAD_ARGUMENT;
}
unsupported_nesting(enum ofpact_type action, enum ofpact_type outer_action,
                    char **errorp)
{
    verify_error(errorp, "%s action doesn't support nested action %s",
                 ofpact_name(outer_action), ofpact_name(action));
    return OFPERR_OFPBAC_BAD_ARGUMENT;
}