Commit 363a5374 authored by Tejun Heo's avatar Tejun Heo
Browse files

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: 25037af7 ("sched_ext: Add rhashtable lookup for sub-schedulers")
Reported-by: default avatarkernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/all/202605080556.42PXw8U9-lkp@intel.com/


Signed-off-by: default avatarTejun Heo <tj@kernel.org>
parent 4616a9c3

kernel/sched/ext.c

+0 −1
Original line number Diff line number Diff line
@@ -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 */