[PATCH] nvdimm: make nd_class variable static

[Ben Dooks]

The nd_class is not used outside of drivers/nvdimm/bus.c and thus sparse
is generating the following warning. Remove this by making it static:

drivers/nvdimm/bus.c:28:14: warning: symbol 'nd_class' was not declared. Should it be static?

Signed-off-by: Ben Dooks <ben.dooks@xxxxxxxxxxxxxxx>
---
 drivers/nvdimm/bus.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/nvdimm/bus.c b/drivers/nvdimm/bus.c
index 954dbc105fc8..5852fe290523 100644
--- a/drivers/nvdimm/bus.c
+++ b/drivers/nvdimm/bus.c
@@ -25,7 +25,7 @@
 
 int nvdimm_major;
 static int nvdimm_bus_major;
-struct class *nd_class;
+static struct class *nd_class;
 static DEFINE_IDA(nd_ida);
 
 static int to_nd_device_type(const struct device *dev)
-- 
2.39.2