blk-mq: use blk_mq_put_driver_tag() to put tag

Expect arguments, blk_mq_put_driver_tag_hctx() and blk_mq_put_driver_tag()
is same. We can just use argument 'request' to put tag by blk_mq_put_driver_tag().
Then we can remove the unused blk_mq_put_driver_tag_hctx().
Signed-off-by: Yufen Yu <yuyufen@huawei.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

block/blk-flush.c

@@ -220,7 +220,7 @@ static void flush_end_io(struct request *flush_rq, blk_status_t error)
 		blk_mq_tag_set_rq(hctx, flush_rq->tag, fq->orig_rq);
 		flush_rq->tag = -1;
 	} else {
-		blk_mq_put_driver_tag_hctx(hctx, flush_rq);
+		blk_mq_put_driver_tag(flush_rq);
 		flush_rq->internal_tag = -1;
 	}
 
@@ -324,7 +324,7 @@ static void mq_flush_data_end_io(struct request *rq, blk_status_t error)
 
 	if (q->elevator) {
 		WARN_ON(rq->tag < 0);
-		blk_mq_put_driver_tag_hctx(hctx, rq);
+		blk_mq_put_driver_tag(rq);
 	}
 
 	/*

block/blk-mq.h

@@ -224,15 +224,6 @@ static inline void __blk_mq_put_driver_tag(struct blk_mq_hw_ctx *hctx,
 	}
 }
 
-static inline void blk_mq_put_driver_tag_hctx(struct blk_mq_hw_ctx *hctx,
-				       struct request *rq)
-{
-	if (rq->tag == -1 || rq->internal_tag == -1)
-		return;
-
-	__blk_mq_put_driver_tag(hctx, rq);
-}
-
 static inline void blk_mq_put_driver_tag(struct request *rq)
 {
 	if (rq->tag == -1 || rq->internal_tag == -1)