diff --git a/include/linux/rmap.h b/include/linux/rmap.h
index daa92a58585d..832bfc0ccfc6 100644
--- a/include/linux/rmap.h
+++ b/include/linux/rmap.h
@@ -165,13 +165,6 @@ static inline int anon_vma_prepare(struct vm_area_struct *vma)
 	return __anon_vma_prepare(vma);
 }
 
-static inline void anon_vma_merge(struct vm_area_struct *vma,
-				  struct vm_area_struct *next)
-{
-	VM_BUG_ON_VMA(vma->anon_vma != next->anon_vma, vma);
-	unlink_anon_vmas(next);
-}
-
 struct anon_vma *folio_get_anon_vma(const struct folio *folio);
 
 #ifdef CONFIG_MM_ID
diff --git a/mm/vma.c b/mm/vma.c
index f81a5cfcd7cc..6c458c8656b8 100644
--- a/mm/vma.c
+++ b/mm/vma.c
@@ -381,7 +381,7 @@ static void vma_complete(struct vma_prepare *vp, struct vma_iterator *vmi,
 			fput(vp->file);
 		}
 		if (vp->remove->anon_vma)
-			anon_vma_merge(vp->vma, vp->remove);
+			unlink_anon_vmas(vp->remove);
 		mm->map_count--;
 		mpol_put(vma_policy(vp->remove));
 		if (!vp->remove2)
diff --git a/tools/testing/vma/vma_internal.h b/tools/testing/vma/vma_internal.h
index 9f0a9f5ed0fe..93e5792306d9 100644
--- a/tools/testing/vma/vma_internal.h
+++ b/tools/testing/vma/vma_internal.h
@@ -1265,11 +1265,6 @@ static inline void i_mmap_unlock_write(struct address_space *mapping)
 {
 }
 
-static inline void anon_vma_merge(struct vm_area_struct *vma,
-				  struct vm_area_struct *next)
-{
-}
-
 static inline int userfaultfd_unmap_prep(struct vm_area_struct *vma,
 					 unsigned long start,
 					 unsigned long end,