linux-kernel - [tip: sched/core] sched/uclamp: Remove unnecessary mutex

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Date:   Sat, 25 Jul 2020 10:13:33 -0000
From:   "tip-bot2 for Qinglang Miao" <tip-bot2@...utronix.de>
To:     linux-tip-commits@...r.kernel.org
Cc:     Qinglang Miao <miaoqinglang@...wei.com>,
        Ingo Molnar <mingo@...nel.org>,
        Patrick Bellasi <patrick.bellasi@....com>,
        Peter Zijlstra <peterz@...radead.org>,
        Vincent Guittot <vincent.guittot@...aro.org>,
        Dietmar Eggemann <dietmar.eggemann@....com>,
        x86 <x86@...nel.org>, LKML <linux-kernel@...r.kernel.org>
Subject: [tip: sched/core] sched/uclamp: Remove unnecessary mutex_init()

The following commit has been merged into the sched/core branch of tip:

Commit-ID:     13efa616124f7eec7d6a58adeeef31864aa03879
Gitweb:        https://git.kernel.org/tip/13efa616124f7eec7d6a58adeeef31864aa03879
Author:        Qinglang Miao <miaoqinglang@...wei.com>
AuthorDate:    Sat, 25 Jul 2020 16:56:29 +08:00
Committer:     Ingo Molnar <mingo@...nel.org>
CommitterDate: Sat, 25 Jul 2020 12:10:36 +02:00

sched/uclamp: Remove unnecessary mutex_init()

The uclamp_mutex lock is initialized statically via DEFINE_MUTEX(),
it is unnecessary to initialize it runtime via mutex_init().

Signed-off-by: Qinglang Miao <miaoqinglang@...wei.com>
Signed-off-by: Ingo Molnar <mingo@...nel.org>
Cc: Patrick Bellasi <patrick.bellasi@....com>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Vincent Guittot <vincent.guittot@...aro.org>
Cc: Dietmar Eggemann <dietmar.eggemann@....com>
Link: https://lore.kernel.org/r/20200725085629.98292-1-miaoqinglang@huawei.com
---
 kernel/sched/core.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index bd8e521..6782534 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -1425,8 +1425,6 @@ static void __init init_uclamp(void)
 	enum uclamp_id clamp_id;
 	int cpu;
 
-	mutex_init(&uclamp_mutex);
-
 	for_each_possible_cpu(cpu)
 		init_uclamp_rq(cpu_rq(cpu));