[PATCH -next] hv_debugfs: Make hv_debug_root static

[YueHaibing]

Fix sparse warning:

drivers/hv/hv_debugfs.c:14:15: warning: symbol 'hv_debug_root' was not declared. Should it be static?

Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
Signed-off-by: YueHaibing <yuehaibing@xxxxxxxxxx>
---
 drivers/hv/hv_debugfs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/hv/hv_debugfs.c b/drivers/hv/hv_debugfs.c
index 8a2878573582..ccf752b6659a 100644
--- a/drivers/hv/hv_debugfs.c
+++ b/drivers/hv/hv_debugfs.c
@@ -11,7 +11,7 @@
 
 #include "hyperv_vmbus.h"
 
-struct dentry *hv_debug_root;
+static struct dentry *hv_debug_root;
 
 static int hv_debugfs_delay_get(void *data, u64 *val)
 {
-- 
2.17.1