linux-kernel - [RFC PATCH 1/2] sched: Add dummy version of sched_group_set

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Message-ID: <20240923135431.2440320-2-liaoyu15@huawei.com>
Date: Mon, 23 Sep 2024 21:54:30 +0800
From: Yu Liao <liaoyu15@...wei.com>
To: <tj@...nel.org>
CC: <liaoyu15@...wei.com>, <xiexiuqi@...wei.com>, <peterz@...radead.org>,
	<mingo@...hat.com>, <linux-kernel@...r.kernel.org>, <juri.lelli@...hat.com>,
	<vincent.guittot@...aro.org>
Subject: [RFC PATCH 1/2] sched: Add dummy version of sched_group_set_idle()

Fix the following error when build with CONFIG_GROUP_SCHED_WEIGHT &&
!CONFIG_FAIR_GROUP_SCHED:

kernel/sched/core.c:9634:15: error: implicit declaration of function
'sched_group_set_idle'; did you mean 'scx_group_set_idle'? [-Wimplicit-function-declaration]
  9634 |         ret = sched_group_set_idle(css_tg(css), idle);
       |               ^~~~~~~~~~~~~~~~~~~~
       |               scx_group_set_idle

Fixes: e179e80c5d4f ("sched: Introduce CONFIG_GROUP_SCHED_WEIGHT")
Reported-by: kernel test robot <lkp@...el.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202409220859.UiCAoFOW-lkp@intel.com/
Signed-off-by: Yu Liao <liaoyu15@...wei.com>
---
 kernel/sched/sched.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index 8063db62b027..91d14061fdca 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -582,6 +582,7 @@ static inline void set_task_rq_fair(struct sched_entity *se,
 #endif /* CONFIG_SMP */
 #else /* !CONFIG_FAIR_GROUP_SCHED */
 static inline int sched_group_set_shares(struct task_group *tg, unsigned long shares) { return 0; }
+static inline int sched_group_set_idle(struct task_group *tg, long idle) { return 0; }
 #endif /* CONFIG_FAIR_GROUP_SCHED */
 
 #else /* CONFIG_CGROUP_SCHED */
-- 
2.33.0