--- zzzz-none-000/linux-4.1.52/include/linux/vtime.h	2018-05-28 02:26:45.000000000 +0000
+++ bcm63-7530ax-731/linux-4.1.52/include/linux/vtime.h	2022-03-02 11:37:13.000000000 +0000
@@ -66,10 +66,10 @@
 
 #else /* !CONFIG_VIRT_CPU_ACCOUNTING */
 
-static inline void vtime_task_switch(struct task_struct *prev) { }
-static inline void vtime_account_system(struct task_struct *tsk) { }
-static inline void vtime_account_user(struct task_struct *tsk) { }
-static inline void vtime_account_irq_enter(struct task_struct *tsk) { }
+static inline void vtime_task_switch(struct task_struct *prev __maybe_unused) { }
+static inline void vtime_account_system(struct task_struct *tsk __maybe_unused) { }
+static inline void vtime_account_user(struct task_struct *tsk __maybe_unused) { }
+static inline void vtime_account_irq_enter(struct task_struct *tsk __maybe_unused) { }
 #endif /* !CONFIG_VIRT_CPU_ACCOUNTING */
 
 #ifdef CONFIG_VIRT_CPU_ACCOUNTING_GEN
@@ -97,17 +97,17 @@
 	/* On hard|softirq exit we always account to hard|softirq cputime */
 	vtime_account_system(tsk);
 }
-static inline void vtime_user_enter(struct task_struct *tsk) { }
-static inline void vtime_user_exit(struct task_struct *tsk) { }
-static inline void vtime_guest_enter(struct task_struct *tsk) { }
-static inline void vtime_guest_exit(struct task_struct *tsk) { }
-static inline void vtime_init_idle(struct task_struct *tsk, int cpu) { }
+static inline void vtime_user_enter(struct task_struct *tsk __maybe_unused) { }
+static inline void vtime_user_exit(struct task_struct *tsk __maybe_unused) { }
+static inline void vtime_guest_enter(struct task_struct *tsk __maybe_unused) { }
+static inline void vtime_guest_exit(struct task_struct *tsk __maybe_unused) { }
+static inline void vtime_init_idle(struct task_struct *tsk __maybe_unused, int cpu __maybe_unused) { }
 #endif
 
 #ifdef CONFIG_IRQ_TIME_ACCOUNTING
 extern void irqtime_account_irq(struct task_struct *tsk);
 #else
-static inline void irqtime_account_irq(struct task_struct *tsk) { }
+static inline void irqtime_account_irq(struct task_struct *tsk __maybe_unused) { }
 #endif
 
 static inline void account_irq_enter_time(struct task_struct *tsk)