[PATCH] block: Fix sparse warning

[Tushar Behera]

blk_drain_queue is only used in this file, so should be marked static.

Fixes following sparse warning.

block/blk-core.c:361:6: warning: symbol 'blk_drain_queue' was not
declared. Should it be static?

Signed-off-by: Tushar Behera <tushar.behera@xxxxxxxxxx>
---
 block/blk-core.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/block/blk-core.c b/block/blk-core.c
index a8b1527..5db63eb 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -358,7 +358,7 @@ EXPORT_SYMBOL(blk_put_queue);
  * If not, only ELVPRIV requests are drained.  The caller is responsible
  * for ensuring that no new requests which need to be drained are queued.
  */
-void blk_drain_queue(struct request_queue *q, bool drain_all)
+static void blk_drain_queue(struct request_queue *q, bool drain_all)
 {
 	int i;
 
-- 
1.7.4.1

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