+static int acpi_nfit_blk_get_flags(struct nvdimm_bus_descriptor *nd_desc,
+ struct nvdimm *nvdimm, struct nfit_blk *nfit_blk)
+{
+ struct nd_cmd_dimm_flags flags;
+ int rc;
+
+ memset(&flags, 0, sizeof(flags));
+ rc = nd_desc->ndctl(nd_desc, nvdimm, ND_CMD_DIMM_FLAGS, &flags,
+ sizeof(flags));
+
+ if (rc >= 0 && flags.status == 0)
+ nfit_blk->dimm_flags = flags.flags;
+ else if (rc == -ENOTTY) {
+ /* fall back to a conservative default */
+ nfit_blk->dimm_flags = ND_BLK_DCR_LATCH;
+ rc = 0;
+ } else
+ rc = -ENXIO;
+
+ return rc;
+}
+