linux-kernel - [PATCH] cpufreq: schedutil: make kobj

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Message-Id: <20230220-kobj_type-cpufreq-schedutil-v1-1-7d1c92293457@weissschuh.net>
Date:   Mon, 20 Feb 2023 23:28:54 +0000
From:   Thomas Weißschuh <linux@...ssschuh.net>
To:     "Rafael J. Wysocki" <rafael@...nel.org>,
        Viresh Kumar <viresh.kumar@...aro.org>,
        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>,
        Daniel Bristot de Oliveira <bristot@...hat.com>,
        Valentin Schneider <vschneid@...hat.com>
Cc:     linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org,
        Thomas Weißschuh <linux@...ssschuh.net>
Subject: [PATCH] cpufreq: schedutil: make kobj_type structure constant

Since commit ee6d3dd4ed48 ("driver core: make kobj_type constant.")
the driver core allows the usage of const struct kobj_type.

Take advantage of this to constify the structure definition to prevent
modification at runtime.

Signed-off-by: Thomas Weißschuh <linux@...ssschuh.net>
---
 kernel/sched/cpufreq_schedutil.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/sched/cpufreq_schedutil.c b/kernel/sched/cpufreq_schedutil.c
index 1207c78f85c1..4c073bd9b001 100644
--- a/kernel/sched/cpufreq_schedutil.c
+++ b/kernel/sched/cpufreq_schedutil.c
@@ -543,7 +543,7 @@ static void sugov_tunables_free(struct kobject *kobj)
 	kfree(to_sugov_tunables(attr_set));
 }
 
-static struct kobj_type sugov_tunables_ktype = {
+static const struct kobj_type sugov_tunables_ktype = {
 	.default_groups = sugov_groups,
 	.sysfs_ops = &governor_sysfs_ops,
 	.release = &sugov_tunables_free,

---
base-commit: 5b0ed5964928b0aaf0d644c17c886c7f5ea4bb3f
change-id: 20230220-kobj_type-cpufreq-schedutil-783c6be6ff14

Best regards,
-- 
Thomas Weißschuh <linux@...ssschuh.net>