[PATCH 0/3] s390: Fix and improve inline assembly constraints

From: Heiko Carstens

Date: Mon Mar 02 2026 - 08:41:06 EST


While looking at xor_xc_2() I realized that its inline assembly constraints
are incorrect. Also the inline assembly constraints for the other xor()
function look incorrect, but are not (execute instruction vs register
zero). However that revealed another real bug on __stackleak_poison() with
another incorrect inline assembly constraint.

Fix and improve all of them.

Heiko Carstens (3):
s390/xor: Fix xor_xc_2() inline assembly constraints
s390/xor: Improve inline assembly constraints
s390/stackleak: Fix __stackleak_poison() inline assembly constraint

arch/s390/include/asm/processor.h | 2 +-
arch/s390/lib/xor.c | 10 +++++-----
2 files changed, 6 insertions(+), 6 deletions(-)

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2.51.0