From: Tejun Heo Date: Thu, 7 May 2026 22:09:21 +0000 (-1000) Subject: sched_ext: Drop unused scx_find_sub_sched() stub X-Git-Tag: v7.1-rc4~33^2~16 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=363a53749cc483409498e8f6e1525fe081f1d9d2;p=thirdparty%2Fkernel%2Flinux.git sched_ext: Drop unused scx_find_sub_sched() stub scx_find_sub_sched()'s only caller, scx_bpf_sub_dispatch(), is gated on CONFIG_EXT_SUB_SCHED. When CONFIG_EXT_SUB_SCHED=n the caller compiles out and the stub becomes dead code, tripping -Wunused-function on randconfigs. Drop the stub. Fixes: 25037af712eb ("sched_ext: Add rhashtable lookup for sub-schedulers") Reported-by: kernel test robot Closes: https://lore.kernel.org/all/202605080556.42PXw8U9-lkp@intel.com/ Signed-off-by: Tejun Heo --- diff --git a/kernel/sched/ext.c b/kernel/sched/ext.c index 7d367c140a36..48b4834c7027 100644 --- a/kernel/sched/ext.c +++ b/kernel/sched/ext.c @@ -297,7 +297,6 @@ static void scx_set_task_sched(struct task_struct *p, struct scx_sched *sch) #else /* CONFIG_EXT_SUB_SCHED */ static struct scx_sched *scx_parent(struct scx_sched *sch) { return NULL; } static struct scx_sched *scx_next_descendant_pre(struct scx_sched *pos, struct scx_sched *root) { return pos ? NULL : root; } -static struct scx_sched *scx_find_sub_sched(u64 cgroup_id) { return NULL; } static void scx_set_task_sched(struct task_struct *p, struct scx_sched *sch) {} #endif /* CONFIG_EXT_SUB_SCHED */