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kernel/hung_task.c: set some hung_task.c variables storage-class-specifier to static

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smatch reports several warnings
kernel/hung_task.c:31:19: warning:
  symbol 'sysctl_hung_task_check_count' was not declared. Should it be static?
kernel/hung_task.c:50:29: warning:
  symbol 'sysctl_hung_task_check_interval_secs' was not declared. Should it be static?
kernel/hung_task.c:52:19: warning:
  symbol 'sysctl_hung_task_warnings' was not declared. Should it be static?
kernel/hung_task.c:75:28: warning:
  symbol 'sysctl_hung_task_panic' was not declared. Should it be static?

These variables are only used in hung_task.c, so they should be static

Link: https://lkml.kernel.org/r/20230312164645.471259-1-trix@redhat.com
Signed-off-by: Tom Rix <trix@redhat.com>
Cc: Ben Dooks <ben.dooks@sifive.com>
Cc: fuyuanli <fuyuanli@didiglobal.com>
Cc: John Ogness <john.ogness@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Petr Mladek <pmladek@suse.com>
Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Tom Rix 2023-03-12 12:46:45 -04:00 committed by Andrew Morton
parent 725e374050
commit 882c5b261f
1 changed files with 5 additions and 5 deletions
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10
kernel/hung_task.c
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@ -28,7 +28,7 @@
/*
* The number of tasks checked:
*/
int __read_mostly sysctl_hung_task_check_count = PID_MAX_LIMIT;
static int __read_mostly sysctl_hung_task_check_count = PID_MAX_LIMIT;
/*
* Limit number of tasks checked in a batch.
@ -47,9 +47,9 @@ unsigned long __read_mostly sysctl_hung_task_timeout_secs = CONFIG_DEFAULT_HUNG_
/*
* Zero (default value) means use sysctl_hung_task_timeout_secs:
*/
unsigned long __read_mostly sysctl_hung_task_check_interval_secs;
static unsigned long __read_mostly sysctl_hung_task_check_interval_secs;
int __read_mostly sysctl_hung_task_warnings = 10;
static int __read_mostly sysctl_hung_task_warnings = 10;
static int __read_mostly did_panic;
static bool hung_task_show_lock;
@ -72,8 +72,8 @@ static unsigned int __read_mostly sysctl_hung_task_all_cpu_backtrace;
* Should we panic (and reboot, if panic_timeout= is set) when a
* hung task is detected:
*/
unsigned int __read_mostly sysctl_hung_task_panic =
IS_ENABLED(CONFIG_BOOTPARAM_HUNG_TASK_PANIC);
static unsigned int __read_mostly sysctl_hung_task_panic =
IS_ENABLED(CONFIG_BOOTPARAM_HUNG_TASK_PANIC);
static int
hung_task_panic(struct notifier_block *this, unsigned long event, void *ptr)