linux-kernel - [PATCH] sched/psi: set varaiable psi_cgroups_enabled storage-class-specifier to static

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Date:   Wed,  5 Apr 2023 12:36:02 -0400
From:   Tom Rix <trix@...hat.com>
To:     hannes@...xchg.org, surenb@...gle.com, mingo@...hat.com,
        peterz@...radead.org, juri.lelli@...hat.com,
        vincent.guittot@...aro.org, dietmar.eggemann@....com,
        rostedt@...dmis.org, bsegall@...gle.com, mgorman@...e.de,
        bristot@...hat.com, vschneid@...hat.com
Cc:     linux-kernel@...r.kernel.org, Tom Rix <trix@...hat.com>
Subject: [PATCH] sched/psi: set varaiable psi_cgroups_enabled storage-class-specifier to static

smatch reports
kernel/sched/psi.c:143:1: warning: symbol
  'psi_cgroups_enabled' was not declared. Should it be static?

This variable is only used in one file so should be static.

Signed-off-by: Tom Rix <trix@...hat.com>
---
 kernel/sched/psi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/sched/psi.c b/kernel/sched/psi.c
index 02e011cabe91..c8a556eb9f8a 100644
--- a/kernel/sched/psi.c
+++ b/kernel/sched/psi.c
@@ -140,7 +140,7 @@
 static int psi_bug __read_mostly;
 
 DEFINE_STATIC_KEY_FALSE(psi_disabled);
-DEFINE_STATIC_KEY_TRUE(psi_cgroups_enabled);
+static DEFINE_STATIC_KEY_TRUE(psi_cgroups_enabled);
 
 #ifdef CONFIG_PSI_DEFAULT_DISABLED
 static bool psi_enable;
-- 
2.27.0