diff --git a/include/linux/highmem.h b/include/linux/highmem.h
index 3d8768b..ea5780b 100644
--- a/include/linux/highmem.h
+++ b/include/linux/highmem.h
@@ -96,6 +96,8 @@
 	kunmap_atomic(kaddr, KM_USER0);
 }
 
+#ifndef __HAVE_ARCH_COPY_USER_HIGHPAGE
+
 static inline void copy_user_highpage(struct page *to, struct page *from, unsigned long vaddr)
 {
 	char *vfrom, *vto;
@@ -109,6 +111,8 @@
 	smp_wmb();
 }
 
+#endif
+
 static inline void copy_highpage(struct page *to, struct page *from)
 {
 	char *vfrom, *vto;