diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
index a2bcbd2e0f9a..fd7f1c0b6185 100644
--- a/include/linux/cgroup.h
+++ b/include/linux/cgroup.h
@@ -865,11 +865,6 @@ static inline int cgroup_attach_task_all(struct task_struct *from,
 	return 0;
 }
 
-static inline int subsys_cgroup_allow_attach(struct cgroup *cgrp,
-					     struct cgroup_taskset *tset)
-{
-	return 0;
-}
 #endif /* !CONFIG_CGROUPS */
 
 #endif /* _LINUX_CGROUP_H */