diff --git a/arch/s390/include/asm/cpu_mf.h b/arch/s390/include/asm/cpu_mf.h
index facdc2496c3a907c18e8448093d25f764bc911d1..05480e4cc5cabdab4e8bcc5006b8d0691b4bfef7 100644
--- a/arch/s390/include/asm/cpu_mf.h
+++ b/arch/s390/include/asm/cpu_mf.h
@@ -174,7 +174,7 @@ static inline int lcctl(u64 ctl)
 /* Extract CPU counter */
 static inline int __ecctr(u64 ctr, u64 *content)
 {
-	register u64 _content asm("4") = 0;
+	u64 _content;
 	int cc;
 
 	asm volatile (