linux-kernel - [PATCH -next] sched/uclamp: kill unnecessary mutex

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <20200725085629.98292-1-miaoqinglang@huawei.com>
Date:   Sat, 25 Jul 2020 16:56:29 +0800
From:   Qinglang Miao <miaoqinglang@...wei.com>
To:     Ingo Molnar <mingo@...hat.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Juri Lelli <juri.lelli@...hat.com>,
        Vincent Guittot <vincent.guittot@...aro.org>,
        Dietmar Eggemann <dietmar.eggemann@....com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Ben Segall <bsegall@...gle.com>,
        "Mel Gorman" <mgorman@...e.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
CC:     <linux-kernel@...r.kernel.org>
Subject: [PATCH -next] sched/uclamp: kill unnecessary mutex_init()

The mutex uclamp_mutex is initialized statically. It is
unnecessary to initialize by mutex_init().

Signed-off-by: Qinglang Miao <miaoqinglang@...wei.com>
---
 kernel/sched/core.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 29d557c1f..9a8b7ed3a 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -1331,8 +1331,6 @@ 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));
 
-- 
2.25.1