--- zzzz-none-000/linux-4.9.279/include/linux/ioport.h	2021-08-08 06:38:54.000000000 +0000
+++ puma7-atom-6591-750/linux-4.9.279/include/linux/ioport.h	2023-02-08 11:43:43.000000000 +0000
@@ -165,6 +165,9 @@
 /* PC/ISA/whatever - the normal PC address spaces: IO and memory */
 extern struct resource ioport_resource;
 extern struct resource iomem_resource;
+#if defined(CONFIG_AVM_ENHANCED)
+extern struct resource gpio_resource;
+#endif/*--- #if defined(CONFIG_AVM_ENHANCED) ---*/
 
 extern struct resource *request_resource_conflict(struct resource *root, struct resource *new);
 extern int request_resource(struct resource *root, struct resource *new);