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authorDan Williams <dan.j.williams@intel.com>2018-06-03 21:49:15 +0200
committerDan Williams <dan.j.williams@intel.com>2018-06-03 21:49:15 +0200
commitd4dd70915ea82b7196108c1f0102bc09295c4513 (patch)
tree5263282c2708abe191a973bce958fcf0004a3a25 /drivers/acpi
parentlibnvdimm, e820: Register all pmem resources (diff)
downloadlinux-d4dd70915ea82b7196108c1f0102bc09295c4513.tar.xz
linux-d4dd70915ea82b7196108c1f0102bc09295c4513.zip
acpi, nfit: Remove ecc_unit_size
The "Clear Error Unit" may be smaller than the ECC unit size on some devices. For example, poison may be tracked at 64-byte alignment even though the ECC unit is larger. Unless / until the ACPI specification provides a non-ambiguous way to communicate this property do not expose this to userspace. Software that had been using this property must already be prepared for the case where the property is not provided on older kernels, so it is safe to remove this attribute. Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/acpi')
-rw-r--r--drivers/acpi/nfit/core.c11
1 files changed, 0 insertions, 11 deletions
diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c
index e2235ed3e4be..b87252bf4571 100644
--- a/drivers/acpi/nfit/core.c
+++ b/drivers/acpi/nfit/core.c
@@ -1978,19 +1978,8 @@ static ssize_t range_index_show(struct device *dev,
}
static DEVICE_ATTR_RO(range_index);
-static ssize_t ecc_unit_size_show(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- struct nd_region *nd_region = to_nd_region(dev);
- struct nfit_spa *nfit_spa = nd_region_provider_data(nd_region);
-
- return sprintf(buf, "%d\n", nfit_spa->clear_err_unit);
-}
-static DEVICE_ATTR_RO(ecc_unit_size);
-
static struct attribute *acpi_nfit_region_attributes[] = {
&dev_attr_range_index.attr,
- &dev_attr_ecc_unit_size.attr,
NULL,
};