diff --git a/arch/s390/kernel/time.c b/arch/s390/kernel/time.c
index 3bbac1293be45d020ffbb703f74c8c8272ff70ad..76a5dd1b4ce9a1376f85c7d1e8711aa423a6f85a 100644
--- a/arch/s390/kernel/time.c
+++ b/arch/s390/kernel/time.c
@@ -744,7 +744,6 @@ static void etr_adjust_time(unsigned long long clock, unsigned long long delay)
 	}
 }
 
-#ifdef CONFIG_SMP
 static void etr_sync_cpu_start(void *dummy)
 {
 	int *in_sync = dummy;
@@ -777,7 +776,6 @@ static void etr_sync_cpu_start(void *dummy)
 static void etr_sync_cpu_end(void *dummy)
 {
 }
-#endif /* CONFIG_SMP */
 
 /*
  * Sync the TOD clock using the port refered to by aibp. This port