linux-kernel - [PATCH v2 5/7] acpi, nfit: Show bus_dsm

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Date:   Tue, 20 Jun 2017 10:51:24 -0600
From:   Jerry Hoemann <jerry.hoemann@....com>
To:     dan.j.williams@...el.com
Cc:     linux-nvdimm@...ts.01.org, linux-kernel@...r.kernel.org,
        Jerry Hoemann <jerry.hoemann@....com>
Subject: [PATCH v2 5/7] acpi, nfit: Show bus_dsm_mask

Add bus_dsm_mask to sysfs display under /sys/bus/nd/devices/ndbusX/nfit.

Signed-off-by: Jerry Hoemann <jerry.hoemann@....com>
---
 drivers/acpi/nfit/core.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c
index 9d281a4..f133b3e 100644
--- a/drivers/acpi/nfit/core.c
+++ b/drivers/acpi/nfit/core.c
@@ -928,6 +928,15 @@ 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 DEVICE_ATTR_RO(bus_dsm_mask);
+
 static ssize_t revision_show(struct device *dev,
 		struct device_attribute *attr, char *buf)
 {
@@ -1064,6 +1073,7 @@ 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