--- zzzz-none-000/linux-4.4.271/include/linux/vmstat.h	2021-06-03 06:22:09.000000000 +0000
+++ hawkeye-5590-750/linux-4.4.271/include/linux/vmstat.h	2023-04-19 10:22:30.000000000 +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