linux-kernel - [PATCH 1/2] block, bfq: don't return bfqg from __bfq_bic_change

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Message-Id: <20221214033155.3455754-2-yukuai1@huaweicloud.com>
Date:   Wed, 14 Dec 2022 11:31:54 +0800
From:   Yu Kuai <yukuai1@...weicloud.com>
To:     paolo.valente@...aro.org, axboe@...nel.dk, tj@...nel.org,
        josef@...icpanda.com
Cc:     linux-block@...r.kernel.org, cgroups@...r.kernel.org,
        linux-kernel@...r.kernel.org, yukuai3@...wei.com,
        yukuai1@...weicloud.com, yi.zhang@...wei.com
Subject: [PATCH 1/2] block, bfq: don't return bfqg from __bfq_bic_change_cgroup()

From: Yu Kuai <yukuai3@...wei.com>

The return value is not used, hence remove it.

Signed-off-by: Yu Kuai <yukuai3@...wei.com>
---
 block/bfq-cgroup.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/block/bfq-cgroup.c b/block/bfq-cgroup.c
index 627476bc6495..23dc355a106d 100644
--- a/block/bfq-cgroup.c
+++ b/block/bfq-cgroup.c
@@ -724,9 +724,9 @@ void bfq_bfqq_move(struct bfq_data *bfqd, struct bfq_queue *bfqq,
  * sure that the reference to cgroup is valid across the call (see
  * comments in bfq_bic_update_cgroup on this issue)
  */
-static void *__bfq_bic_change_cgroup(struct bfq_data *bfqd,
-				     struct bfq_io_cq *bic,
-				     struct bfq_group *bfqg)
+static void __bfq_bic_change_cgroup(struct bfq_data *bfqd,
+				    struct bfq_io_cq *bic,
+				    struct bfq_group *bfqg)
 {
 	struct bfq_queue *async_bfqq = bic_to_bfqq(bic, 0);
 	struct bfq_queue *sync_bfqq = bic_to_bfqq(bic, 1);
@@ -776,8 +776,6 @@ static void *__bfq_bic_change_cgroup(struct bfq_data *bfqd,
 			}
 		}
 	}
-
-	return bfqg;
 }
 
 void bfq_bic_update_cgroup(struct bfq_io_cq *bic, struct bio *bio)
-- 
2.31.1