cxl_driver_register
return cxl_driver_register(&cxl_region_driver);
module_driver(__cxl_driver, cxl_driver_register, cxl_driver_unregister)
rc = cxl_driver_register(&cxl_nvdimm_bridge_driver);
rc = cxl_driver_register(&cxl_nvdimm_driver);
rc = cxl_driver_register(&cxl_pmem_region_driver);
return cxl_driver_register(&cxl_port_driver);
rc = cxl_driver_register(&cxl_pmu_driver);