diff --git a/kernel/sched/tune.c b/kernel/sched/tune.c
index 6afc27cc722e..8102c3fdb061 100644
--- a/kernel/sched/tune.c
+++ b/kernel/sched/tune.c
@@ -368,12 +368,6 @@ void schedtune_enqueue_task(struct task_struct *p, int cpu)
 	raw_spin_unlock_irqrestore(&bg->lock, irq_flags);
 }
 
-int schedtune_allow_attach(struct cgroup_taskset *tset)
-{
-	/* We always allows tasks to be moved between existing CGroups */
-	return 0;
-}
-
 int schedtune_can_attach(struct cgroup_taskset *tset)
 {
 	struct task_struct *task;
@@ -715,7 +709,6 @@ schedtune_css_free(struct cgroup_subsys_state *css)
 struct cgroup_subsys schedtune_cgrp_subsys = {
 	.css_alloc	= schedtune_css_alloc,
 	.css_free	= schedtune_css_free,
-//	.allow_attach   = schedtune_allow_attach,
 	.can_attach     = schedtune_can_attach,
 	.cancel_attach  = schedtune_cancel_attach,
 	.legacy_cftypes	= files,