block: kill blk_end_request_callback()

With recent IDE updates, blk_end_request_callback() doesn't have any
user now.  Kill it.

[ Impact: removal of unused convoluted interface ]

Signed-off-by: Tejun Heo <tj@kernel.org>

1 files changed, 0 insertions, 3 deletions

diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 156ffd9de967..1fa9dcf9aa6a 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -855,9 +855,6 @@ extern int __blk_end_request(struct request *rq, int error,
 extern int blk_end_bidi_request(struct request *rq, int error,
                                 unsigned int nr_bytes, unsigned int bidi_bytes);
 extern void end_request(struct request *, int);
-extern int blk_end_request_callback(struct request *rq, int error,
-                                unsigned int nr_bytes,
-                                int (drv_callback)(struct request *));
 extern void blk_complete_request(struct request *);
 extern void __blk_complete_request(struct request *);
 extern void blk_abort_request(struct request *);