linux-kernel - [PATCH 6.1 49/71] elevator: remove redundant code in elv_unregister

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Message-ID: <20240313163957.615276-50-sashal@kernel.org>
Date: Wed, 13 Mar 2024 12:39:35 -0400
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org,
	stable@...r.kernel.org
Cc: Yu Kuai <yukuai3@...wei.com>,
	Christoph Hellwig <hch@....de>,
	Eric Biggers <ebiggers@...gle.com>,
	Jens Axboe <axboe@...nel.dk>,
	Sasha Levin <sashal@...nel.org>
Subject: [PATCH 6.1 49/71] elevator: remove redundant code in elv_unregister_queue()

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

[ Upstream commit 6d9f4cf125585ebf0718abcf5ce9ca898877c6d2 ]

"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>
Link: https://lore.kernel.org/r/20221019121518.3865235-2-yukuai1@huaweicloud.com
Signed-off-by: Jens Axboe <axboe@...nel.dk>
Stable-dep-of: f814bdda774c ("blk-wbt: Fix detection of dirty-throttled tasks")
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 block/elevator.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/block/elevator.c b/block/elevator.c
index bd71f0fc4e4b6..20e70fd3f77f9 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);
 
-- 
2.43.0