Sven Schnelle a305c7ecbd s390: Mark psw in __load_psw_mask() as __unitialized ... [ Upstream commit 7278a8fb8d ] Without __unitialized, the following code is generated when INIT_STACK_ALL_ZERO is enabled: 86: d7 0f f0 a0 f0 a0 xc 160(16,%r15), 160(%r15) 8c: e3 40 f0 a0 00 24 stg %r4, 160(%r15) 92: c0 10 00 00 00 08 larl %r1, 0xa2 98: e3 10 f0 a8 00 24 stg %r1, 168(%r15) 9e: b2 b2 f0 a0 lpswe 160(%r15) The xc is not adding any security because psw is fully initialized with the following instructions. Add __unitialized to the psw definitiation to avoid the superfluous clearing of psw. Reviewed-by: Heiko Carstens <hca@linux.ibm.com> Signed-off-by: Sven Schnelle <svens@linux.ibm.com> Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		2024-07-18 13:18:35 +02:00
..
asm	s390: Mark psw in __load_psw_mask() as __unitialized	2024-07-18 13:18:35 +02:00
uapi/asm	s390/dasd: add autoquiesce feature	2024-03-26 18:20:28 -04:00