--- zzzz-none-000/linux-4.9.279/include/linux/vmstat.h	2021-08-08 06:38:54.000000000 +0000
+++ puma7-atom-6591-750/linux-4.9.279/include/linux/vmstat.h	2023-02-08 11:43:43.000000000 +0000
@@ -53,6 +53,10 @@
 
 extern void all_vm_events(unsigned long *);
 
+#if defined(CONFIG_AVM_POWERMETER)
+extern void __all_vm_events(unsigned long *ret);
+#endif/*--- #if defined(CONFIG_AVM_POWERMETER) ---*/
+
 extern void vm_events_fold_cpu(int cpu);
 
 #else