[PATCH dm] dm thin: __blkdev_issue_discard_async() can be static

[PATCH dm] dm thin: __blkdev_issue_discard_async() can be static

[kbuild test robot]

Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
---
 dm-thin.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
index c2634a5..ef47420 100644
--- a/drivers/md/dm-thin.c
+++ b/drivers/md/dm-thin.c
@@ -335,7 +335,7 @@ struct thin_c {
  *    that is being kept local to DM thinp until the block changes to allow
  *    late bio splitting land upstream.
  */
-int __blkdev_issue_discard_async(struct block_device *bdev, sector_t sector,
+static int __blkdev_issue_discard_async(struct block_device *bdev, sector_t sector,
 				 sector_t nr_sects, gfp_t gfp_mask, unsigned long flags,
 				 struct bio *parent_bio)
 {

[dm:for-next 30/30] drivers/md/dm-thin.c:338:5: sparse: symbol '__blkdev_issue_discard_async' was not declared. Should it be static?

[kbuild test robot]

tree:   git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git for-next
head:   9f1e427e6d6c80f0c3d7b38ddfbd98c9f8f2af41
commit: 9f1e427e6d6c80f0c3d7b38ddfbd98c9f8f2af41 [30/30] dm thin: range discard support
reproduce:
  # apt-get install sparse
  git checkout 9f1e427e6d6c80f0c3d7b38ddfbd98c9f8f2af41
  make ARCH=x86_64 allmodconfig
  make C=1 CF=-D__CHECK_ENDIAN__


sparse warnings: (new ones prefixed by >>)

>> drivers/md/dm-thin.c:338:5: sparse: symbol '__blkdev_issue_discard_async' was not declared. Should it be static?

Please review and possibly fold the followup patch.

---
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