[PATCH v4 4/6] acpi, nfit: Show bus_dsm_mask in sysfs

Jerry Hoemann
2017-06-30T16:10:23Z

Display bus_dsm_mask in sysfs as /sys/bus/nd/devices/ndbusX/nfit/dsm_mask.

Signed-off-by: Jerry Hoemann <jerry.hoemann@hpe.com>
---
drivers/acpi/nfit/core.c | 12 ++++++++++++
1 file changed, 12 insertions(+)

diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c
index 5e4c137..4e24d69 100644
--- a/drivers/acpi/nfit/core.c
+++ b/drivers/acpi/nfit/core.c
@@ -929,6 +929,17 @@ static int nfit_mem_init(struct acpi_nfit_desc *acpi_desc)
return 0;
}

+static ssize_t bus_dsm_mask_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct nvdimm_bus *nvdimm_bus = to_nvdimm_bus(dev);
+ struct nvdimm_bus_descriptor *nd_desc = to_nd_desc(nvdimm_bus);
+
+ return sprintf(buf, "%#lx\n", nd_desc->bus_dsm_mask);
+}
+static struct device_attribute dev_attr_bus_dsm_mask =
+ __ATTR(dsm_mask, 0444, bus_dsm_mask_show, NULL);
+
static ssize_t revision_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
@@ -1065,6 +1076,7 @@ static umode_t nfit_visible(struct kobject *kobj, struct attribute *a, int n)
&dev_attr_revision.attr,
&dev_attr_scrub.attr,
&dev_attr_hw_error_scrub.attr,
+ &dev_attr_bus_dsm_mask.attr,
NULL,
};

--
1.8.5.6