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-rw-r--r--include/asm-s390/timer.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/include/asm-s390/timer.h b/include/asm-s390/timer.h
index adb34860a54..d98d79e35cd 100644
--- a/include/asm-s390/timer.h
+++ b/include/asm-s390/timer.h
@@ -48,6 +48,18 @@ extern int del_virt_timer(struct vtimer_list *timer);
extern void init_cpu_vtimer(void);
extern void vtime_init(void);
+#ifdef CONFIG_VIRT_TIMER
+
+extern void vtime_start_cpu_timer(void);
+extern void vtime_stop_cpu_timer(void);
+
+#else
+
+static inline void vtime_start_cpu_timer(void) { }
+static inline void vtime_stop_cpu_timer(void) { }
+
+#endif /* CONFIG_VIRT_TIMER */
+
#endif /* __KERNEL__ */
#endif /* _ASM_S390_TIMER_H */