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authorLinda Knippers <linda.knippers@hp.com>2015-07-22 22:17:22 +0200
committerDan Williams <dan.j.williams@intel.com>2015-07-28 04:53:20 +0200
commit60e95f43fc8573e81f54b0c1e0bc542c2260d956 (patch)
treef567f9fe99cfb2e18e48f966a4c11359cab1a673 /drivers/acpi
parentlibnvdimm, pmem: Change pmem physical sector size to PAGE_SIZE (diff)
downloadlinux-60e95f43fc8573e81f54b0c1e0bc542c2260d956.tar.xz
linux-60e95f43fc8573e81f54b0c1e0bc542c2260d956.zip
nfit: Don't check _STA on NVDIMM devices
The _STA only applies to the root device, not the individual NVDIMMS, so don't check here. NVDIMM device state flags are checked elsewhere. Signed-off-by: Linda Knippers <linda.knippers@hp.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/acpi')
-rw-r--r--drivers/acpi/nfit.c20
1 files changed, 2 insertions, 18 deletions
diff --git a/drivers/acpi/nfit.c b/drivers/acpi/nfit.c
index ef8a664db254..7c2638f914a9 100644
--- a/drivers/acpi/nfit.c
+++ b/drivers/acpi/nfit.c
@@ -764,9 +764,7 @@ static int acpi_nfit_add_dimm(struct acpi_nfit_desc *acpi_desc,
struct acpi_device *adev, *adev_dimm;
struct device *dev = acpi_desc->dev;
const u8 *uuid = to_nfit_uuid(NFIT_DEV_DIMM);
- unsigned long long sta;
- int i, rc = -ENODEV;
- acpi_status status;
+ int i;
nfit_mem->dsm_mask = acpi_desc->dimm_dsm_force_en;
adev = to_acpi_dev(acpi_desc);
@@ -781,25 +779,11 @@ static int acpi_nfit_add_dimm(struct acpi_nfit_desc *acpi_desc,
return force_enable_dimms ? 0 : -ENODEV;
}
- status = acpi_evaluate_integer(adev_dimm->handle, "_STA", NULL, &sta);
- if (status == AE_NOT_FOUND) {
- dev_dbg(dev, "%s missing _STA, assuming enabled...\n",
- dev_name(&adev_dimm->dev));
- rc = 0;
- } else if (ACPI_FAILURE(status))
- dev_err(dev, "%s failed to retrieve_STA, disabling...\n",
- dev_name(&adev_dimm->dev));
- else if ((sta & ACPI_STA_DEVICE_ENABLED) == 0)
- dev_info(dev, "%s disabled by firmware\n",
- dev_name(&adev_dimm->dev));
- else
- rc = 0;
-
for (i = ND_CMD_SMART; i <= ND_CMD_VENDOR; i++)
if (acpi_check_dsm(adev_dimm->handle, uuid, 1, 1ULL << i))
set_bit(i, &nfit_mem->dsm_mask);
- return force_enable_dimms ? 0 : rc;
+ return 0;
}
static int acpi_nfit_register_dimms(struct acpi_nfit_desc *acpi_desc)