[RFC PATCH] xen/blkback: xen_blkif_pgrant_timeout can be static

[kbuild test robot <fengguang.wu@xxxxxxxxx>]

Fixes: 5bed25379565 ("xen/blkback: don't keep persistent grants too long")
Signed-off-by: kbuild test robot <fengguang.wu@xxxxxxxxx>
---
 blkback.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/block/xen-blkback/blkback.c b/drivers/block/xen-blkback/blkback.c
index f341ac8..9eae7b24 100644
--- a/drivers/block/xen-blkback/blkback.c
+++ b/drivers/block/xen-blkback/blkback.c
@@ -88,7 +88,7 @@ MODULE_PARM_DESC(max_persistent_grants,
  * use. The time is in seconds, 0 means indefinitely long.
  */
 
-unsigned int xen_blkif_pgrant_timeout = 60;
+static unsigned int xen_blkif_pgrant_timeout = 60;
 module_param_named(persistent_grant_unused_seconds, xen_blkif_pgrant_timeout,
 		   uint, 0644);
 MODULE_PARM_DESC(persistent_grant_unused_seconds,