--- zzzz-none-000/linux-2.6.39.4/include/linux/hardirq.h	2011-08-03 19:43:28.000000000 +0000
+++ puma6-atom-6490-729/linux-2.6.39.4/include/linux/hardirq.h	2021-11-10 13:38:17.000000000 +0000
@@ -132,7 +132,7 @@
 struct task_struct;
 
 #if !defined(CONFIG_VIRT_CPU_ACCOUNTING) && !defined(CONFIG_IRQ_TIME_ACCOUNTING)
-static inline void account_system_vtime(struct task_struct *tsk)
+static inline void account_system_vtime(struct task_struct *tsk __attribute__((unused)))
 {
 }
 #else