[tip: sched/core] sched/fair: Hide unused init_cfs_bandwidth() stub

[tip-bot2 for Arnd Bergmann]

The following commit has been merged into the sched/core branch of tip:

Commit-ID:     c0bdfd72fbfb7319581bd5bb09b4f10979385bac
Gitweb:        https://git.kernel.org/tip/c0bdfd72fbfb7319581bd5bb09b4f10979385bac
Author:        Arnd Bergmann <arnd@xxxxxxxx>
AuthorDate:    Mon, 22 May 2023 21:50:19 +02:00
Committer:     Peter Zijlstra <peterz@xxxxxxxxxxxxx>
CommitterDate: Tue, 30 May 2023 22:46:25 +02:00

sched/fair: Hide unused init_cfs_bandwidth() stub

init_cfs_bandwidth() is only used when CONFIG_FAIR_GROUP_SCHED is
enabled, and without this causes a W=1 warning for the missing prototype:

kernel/sched/fair.c:6131:6: error: no previous prototype for 'init_cfs_bandwidth'

The normal implementation is only defined for CONFIG_CFS_BANDWIDTH,
so the stub exists when CFS_BANDWIDTH is disabled but FAIR_GROUP_SCHED
is enabled.

Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
Reviewed-by: Vincent Guittot <vincent.guittot@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20230522195021.3456768-4-arnd@xxxxxxxxxx
---
 kernel/sched/fair.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 2c1b345..a7a8ccd 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -6169,9 +6169,8 @@ static inline int throttled_lb_pair(struct task_group *tg,
 	return 0;
 }
 
-void init_cfs_bandwidth(struct cfs_bandwidth *cfs_b) {}
-
 #ifdef CONFIG_FAIR_GROUP_SCHED
+void init_cfs_bandwidth(struct cfs_bandwidth *cfs_b) {}
 static void init_cfs_rq_runtime(struct cfs_rq *cfs_rq) {}
 #endif