diff --git a/arch/s390/kernel/switch_cpu.S b/arch/s390/kernel/switch_cpu.S
index 469f11b574fa..20530dd2eab1 100644
--- a/arch/s390/kernel/switch_cpu.S
+++ b/arch/s390/kernel/switch_cpu.S
@@ -46,7 +46,9 @@ smp_restart_cpu:
 	ltr	%r4,%r4			/* New stack ? */
 	jz	1f
 	lr	%r15,%r4
-1:	basr	%r14,%r2
+1:	lr	%r14,%r2		/* r14: Function to call */
+	lr	%r2,%r3			/* r2 : Parameter for function*/
+	basr	%r14,%r14		/* Call function */
 
 .gprregs_addr:
 	.long	.gprregs
diff --git a/arch/s390/kernel/switch_cpu64.S b/arch/s390/kernel/switch_cpu64.S
index d94aacc898cb..5be3f43898f9 100644
--- a/arch/s390/kernel/switch_cpu64.S
+++ b/arch/s390/kernel/switch_cpu64.S
@@ -42,7 +42,9 @@ smp_restart_cpu:
 	ltgr	%r4,%r4			/* New stack ? */
 	jz	1f
 	lgr	%r15,%r4
-1:	basr	%r14,%r2
+1:	lgr	%r14,%r2		/* r14: Function to call */
+	lgr	%r2,%r3			/* r2 : Parameter for function*/
+	basr	%r14,%r14		/* Call function */
 
 	.section .data,"aw",@progbits
 .gprregs: