On Wed, 21 Sep 2022, Dave Jiang wrote:
+static int cxl_pmem_security_passphrase_erase(struct nvdimm *nvdimm,
+ const struct nvdimm_key_data *key,
+ enum nvdimm_passphrase_type ptype)
+{
+ struct cxl_nvdimm *cxl_nvd = nvdimm_provider_data(nvdimm);
+ struct cxl_memdev *cxlmd = cxl_nvd->cxlmd;
+ struct cxl_dev_state *cxlds = cxlmd->cxlds;
+ struct cxl_pass_erase erase;
+ int rc;
+
+ if (!cpu_cache_has_invalidate_memregion())
+ return -EOPNOTSUPP;
The error code should be the same as the nvdimm user. I went with EINVAL, but
don't really have strong preferences.
