DML_VALIDATION_OK
enum dm_validation_status status = DML_VALIDATION_OK;
if (status == DML_VALIDATION_OK) {
enum dm_validation_status status = DML_VALIDATION_OK;
if (status == DML_VALIDATION_OK) {
enum dm_validation_status status = DML_VALIDATION_OK;
if (status == DML_VALIDATION_OK) {
enum dm_validation_status status = DML_VALIDATION_OK;
case DML_VALIDATION_OK: return "Validation OK";