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sched: Hide unused sched_update_scaling()

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This function is only used when CONFIG_SMP is enabled, without that there
is no caller and no prototype:

kernel/sched/fair.c:688:5: error: no previous prototype for 'sched_update_scaling' [-Werror=missing-prototypes

Hide the definition in the same #ifdef check as the declaration.

Fixes: 8a99b6833c ("sched: Move SCHED_DEBUG sysctl to debugfs")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Vincent Guittot <vincent.guittot@linaro.org>
Link: https://lore.kernel.org/r/20230522195021.3456768-2-arnd@kernel.org
This commit is contained in:
Arnd Bergmann 2023-05-22 21:50:17 +02:00 • committed by Peter Zijlstra
parent e2a1f85bf9
commit d55ebae3f3
1 changed files with 2 additions and 1 deletions
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3
kernel/sched/fair.c
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@ -684,7 +684,7 @@ struct sched_entity *__pick_last_entity(struct cfs_rq *cfs_rq)
/************************************************************** /**************************************************************
* Scheduling class statistics methods: * Scheduling class statistics methods:
*/ */
#ifdef CONFIG_SMP
int sched_update_scaling(void) int sched_update_scaling(void)
{ {
unsigned int factor = get_update_sysctl_factor(); unsigned int factor = get_update_sysctl_factor();
@ -702,6 +702,7 @@ int sched_update_scaling(void)
return 0; return 0;
} }
#endif #endif
#endif
/* /*
* delta /= w * delta /= w