s390/kexec: use call_on_stack() macro

Reviewed-by: Sven Schnelle <svens@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>

arch/s390/kernel/machine_kexec.c

@@ -132,7 +132,8 @@ static bool kdump_csum_valid(struct kimage *image)
 	int rc;
 
 	preempt_disable();
-	rc = CALL_ON_STACK(do_start_kdump, S390_lowcore.nodat_stack, 1, image);
+	rc = call_on_stack(1, S390_lowcore.nodat_stack, unsigned long, do_start_kdump,
+			   unsigned long, (unsigned long)image);
 	preempt_enable();
 	return rc == 0;
 #else