From 7db55dc96496a8269c779c1f13728664d1d0d2eb Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Thu, 26 Aug 2021 10:47:09 +0200
Subject: [PATCH] sched/fair: Mark tg_is_idle() an inline in the
 !CONFIG_FAIR_GROUP_SCHED case
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References: git fixes (sched/fair)
Patch-mainline: v5.15
Git-commit: 366e7ad6ba5f4cb2ffd0b7316e404d6ee9c0f401

It's not actually used in the !CONFIG_FAIR_GROUP_SCHED case:

  kernel/sched/fair.c:488:12: warning: ‘tg_is_idle’ defined but not used [-Wunused-function]

Keep around a placeholder nevertheless, for API completeness. Mark it inline,
so the compiler doesn't think it must be used.

Fixes: 304000390f88: ("sched: Cgroup SCHED_IDLE support")
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Josh Don <joshdon@google.com>
Cc: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Vincent Guittot <vincent.guittot@linaro.org>
Signed-off-by: Mel Gorman <mgorman@suse.de>
---
 kernel/sched/fair.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index ccf38153b9d3..260c06e25ac0 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -493,7 +493,7 @@ find_matching_se(struct sched_entity **se, struct sched_entity **pse)
 {
 }
 
-static int tg_is_idle(struct task_group *tg)
+static inline int tg_is_idle(struct task_group *tg)
 {
 	return 0;
 }