Commit b8e9cc20 authored by Ilya Leoshkevich's avatar Ilya Leoshkevich Committed by Vasily Gorbik
Browse files

s390/traps: do not test MONITOR CALL without CONFIG_BUG 



tinyconfig fails to boot, because without CONFIG_BUG report_bug()
always returns BUG_TRAP_TYPE_BUG, which causes mc 0,0 in
test_monitor_call() to panic. Fix by skipping the test without
CONFIG_BUG.

Signed-off-by: default avatarIlya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: default avatarHeiko Carstens <hca@linux.ibm.com>
Signed-off-by: default avatarVasily Gorbik <gor@linux.ibm.com>
parent 1f0d22de

arch/s390/kernel/traps.c

+2 −0
Original line number Diff line number Diff line
@@ -277,6 +277,8 @@ static void __init test_monitor_call(void) 
{

	int val = 1;



	if (!IS_ENABLED(CONFIG_BUG))

		return;

	asm volatile(

		"	mc	0,0\n"

		"0:	xgr	%0,%0\n"