libnvdimm: Move attribute groups to device type
Statically initialize the attribute groups for each libnvdimm
device_type. This is a preparation step for removing unnecessary exports
of attributes that can be included in the device_type by default.
Also take the opportunity to mark 'struct device_type' instances const.
Cc: Ira Weiny <ira.weiny@intel.com>
Cc: Vishal Verma <vishal.l.verma@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Link: https://lore.kernel.org/r/157309900111.1582359.2445687530383470348.stgit@dwillia2-desk3.amr.corp.intel.com
diff --git a/drivers/nvdimm/btt_devs.c b/drivers/nvdimm/btt_devs.c
index 3508a79..05feb97 100644
--- a/drivers/nvdimm/btt_devs.c
+++ b/drivers/nvdimm/btt_devs.c
@@ -25,17 +25,6 @@ static void nd_btt_release(struct device *dev)
kfree(nd_btt);
}
-static struct device_type nd_btt_device_type = {
- .name = "nd_btt",
- .release = nd_btt_release,
-};
-
-bool is_nd_btt(struct device *dev)
-{
- return dev->type == &nd_btt_device_type;
-}
-EXPORT_SYMBOL(is_nd_btt);
-
struct nd_btt *to_nd_btt(struct device *dev)
{
struct nd_btt *nd_btt = container_of(dev, struct nd_btt, dev);
@@ -178,6 +167,18 @@ static const struct attribute_group *nd_btt_attribute_groups[] = {
NULL,
};
+static const struct device_type nd_btt_device_type = {
+ .name = "nd_btt",
+ .release = nd_btt_release,
+ .groups = nd_btt_attribute_groups,
+};
+
+bool is_nd_btt(struct device *dev)
+{
+ return dev->type == &nd_btt_device_type;
+}
+EXPORT_SYMBOL(is_nd_btt);
+
static struct device *__nd_btt_create(struct nd_region *nd_region,
unsigned long lbasize, u8 *uuid,
struct nd_namespace_common *ndns)
@@ -204,7 +205,6 @@ static struct device *__nd_btt_create(struct nd_region *nd_region,
dev_set_name(dev, "btt%d.%d", nd_region->id, nd_btt->id);
dev->parent = &nd_region->dev;
dev->type = &nd_btt_device_type;
- dev->groups = nd_btt_attribute_groups;
device_initialize(&nd_btt->dev);
if (ndns && !__nd_attach_ndns(&nd_btt->dev, ndns, &nd_btt->ndns)) {
dev_dbg(&ndns->dev, "failed, already claimed by %s\n",