linux-kernel - [PATCH] block/mq-deadline: Move dd_queued() to fix defined but not used warning

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Message-Id: <20210830091128.1854266-1-geert@linux-m68k.org>
Date:   Mon, 30 Aug 2021 11:11:28 +0200
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Jens Axboe <axboe@...nel.dk>
Cc:     linux-block@...r.kernel.org, linux-kernel@...r.kernel.org,
        Geert Uytterhoeven <geert@...ux-m68k.org>
Subject: [PATCH] block/mq-deadline: Move dd_queued() to fix defined but not used warning

If CONFIG_BLK_DEBUG_FS=n:

    block/mq-deadline.c:274:12: warning: ‘dd_queued’ defined but not used [-Wunused-function]
      274 | static u32 dd_queued(struct deadline_data *dd, enum dd_prio prio)
	  |            ^~~~~~~~~

Fix this by moving dd_queued() just before the sole function that calls
it.

Fixes: 7b05bf771084ff78 ("Revert "block/mq-deadline: Prioritize high-priority requests"")
Signed-off-by: Geert Uytterhoeven <geert@...ux-m68k.org>
---
v2:
  - Fix prefix in one-line summary.
---
 block/mq-deadline.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/block/mq-deadline.c b/block/mq-deadline.c
index 36920670dccc35f3..c2c724d4e668ebea 100644
--- a/block/mq-deadline.c
+++ b/block/mq-deadline.c
@@ -270,12 +270,6 @@ deadline_move_request(struct deadline_data *dd, struct dd_per_prio *per_prio,
 	deadline_remove_request(rq->q, per_prio, rq);
 }
 
-/* Number of requests queued for a given priority level. */
-static u32 dd_queued(struct deadline_data *dd, enum dd_prio prio)
-{
-	return dd_sum(dd, inserted, prio) - dd_sum(dd, completed, prio);
-}
-
 /*
  * deadline_check_fifo returns 0 if there are no expired requests on the fifo,
  * 1 otherwise. Requires !list_empty(&dd->fifo_list[data_dir])
@@ -951,6 +945,12 @@ static int dd_async_depth_show(void *data, struct seq_file *m)
 	return 0;
 }
 
+/* Number of requests queued for a given priority level. */
+static u32 dd_queued(struct deadline_data *dd, enum dd_prio prio)
+{
+	return dd_sum(dd, inserted, prio) - dd_sum(dd, completed, prio);
+}
+
 static int dd_queued_show(void *data, struct seq_file *m)
 {
 	struct request_queue *q = data;
-- 
2.25.1