diff --git a/include/linux/mm.h b/include/linux/mm.h
index ab04756b2240..f20ac57b634d 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -725,7 +725,6 @@ struct vm_area_struct *lock_vma_under_rcu(struct mm_struct *mm,
 
 #else /* CONFIG_PER_VMA_LOCK */
 
-static inline void vma_init_lock(struct vm_area_struct *vma) {}
 static inline bool vma_start_read(struct vm_area_struct *vma)
 		{ return false; }
 static inline void vma_end_read(struct vm_area_struct *vma) {}