[RFC PATCH] libnvdimm: bus_desc can be static

[kbuild test robot]

Fixes: 6cb2b51b9b76 ("libnvdimm: Add device-tree based driver")
Signed-off-by: Fengguang Wu <fengguang...@intel.com>
---
 of_nvdimm.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/nvdimm/of_nvdimm.c b/drivers/nvdimm/of_nvdimm.c
index 79c2829..4ed373d 100644
--- a/drivers/nvdimm/of_nvdimm.c
+++ b/drivers/nvdimm/of_nvdimm.c
@@ -15,7 +15,7 @@
  * for dispatching regions into the correct bus type, but this is useful
  * for now.
  */
-struct nvdimm_bus_descriptor bus_desc;
+static struct nvdimm_bus_descriptor bus_desc;
 struct nvdimm_bus *bus;
 
 /* region driver */