linux-kernel - [PATCH v4 1/6] elevator: remove redundant code in elv_unregister

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Date:   Fri, 30 Sep 2022 11:19:01 +0800
From:   Yu Kuai <yukuai1@...weicloud.com>
To:     jack@...e.cz, hch@...radead.org, ebiggers@...nel.org,
        paolo.valente@...aro.org, axboe@...nel.dk
Cc:     linux-block@...r.kernel.org, linux-kernel@...r.kernel.org,
        yukuai3@...wei.com, yukuai1@...weicloud.com, yi.zhang@...wei.com
Subject: [PATCH v4 1/6] elevator: remove redundant code in elv_unregister_queue()

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

"elevator_queue *e" is already declared and initialized in the beginning
of elv_unregister_queue().

Signed-off-by: Yu Kuai <yukuai3@...wei.com>
Reviewed-by: Christoph Hellwig <hch@....de>
Reviewed-by: Eric Biggers <ebiggers@...gle.com>
---
 block/elevator.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/block/elevator.c b/block/elevator.c
index bd71f0fc4e4b..20e70fd3f77f 100644
--- a/block/elevator.c
+++ b/block/elevator.c
@@ -524,8 +524,6 @@ void elv_unregister_queue(struct request_queue *q)
 	lockdep_assert_held(&q->sysfs_lock);
 
 	if (e && e->registered) {
-		struct elevator_queue *e = q->elevator;
-
 		kobject_uevent(&e->kobj, KOBJ_REMOVE);
 		kobject_del(&e->kobj);
 
-- 
2.31.1