diff --git a/include/linux/vdso_datastore.h b/include/linux/vdso_datastore.h
index 0b530428db71..3dfba9502d78 100644
--- a/include/linux/vdso_datastore.h
+++ b/include/linux/vdso_datastore.h
@@ -2,12 +2,12 @@
 #ifndef _LINUX_VDSO_DATASTORE_H
 #define _LINUX_VDSO_DATASTORE_H
 
-#ifdef CONFIG_HAVE_GENERIC_VDSO
 #include <linux/mm_types.h>
 
 extern const struct vm_special_mapping vdso_vvar_mapping;
 struct vm_area_struct *vdso_install_vvar_mapping(struct mm_struct *mm, unsigned long addr);
 
+#ifdef CONFIG_HAVE_GENERIC_VDSO
 void __init vdso_setup_data_pages(void);
 #else /* !CONFIG_HAVE_GENERIC_VDSO */
 static inline void vdso_setup_data_pages(void) { }