From: Heiko Carstens <hca@linux.ibm.com>
To: Heiko Carstens <hca@linux.ibm.com>
Cc: Alexander Gordeev <agordeev@linux.ibm.com>,
Sven Schnelle <svens@linux.ibm.com>,
Vasily Gorbik <gor@linux.ibm.com>,
Christian Borntraeger <borntraeger@linux.ibm.com>,
Christoph Hellwig <hch@lst.de>,
linux-kernel@vger.kernel.org, linux-s390@vger.kernel.org
Subject: Re: [PATCH] s390/xor: Fix xor_xc_2() inline assembly constraints
Date: Fri, 27 Feb 2026 19:56:10 +0100 [thread overview]
Message-ID: <20260227185610.23687A21-hca@linux.ibm.com> (raw)
In-Reply-To: <20260227092107.1120216-1-hca@linux.ibm.com>
On Fri, Feb 27, 2026 at 10:21:07AM +0100, Heiko Carstens wrote:
> The inline assembly constraints for xor_xc_2() are incorrect. "bytes",
> "p1", and "p2" are input operands, while all three of them are modified
> within the inline assembly. Given that the function consists only of this
> inline assembly it seems unlikely that this may cause any problems, however
> fix this in any case.
>
> Cc: stable@vger.kernel.org
> Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
> ---
> arch/s390/lib/xor.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
Ignore this patch. While looking at xor.c again I realized that all
inline assembly constraints are incorrect. Will send an updated
version next week.
prev parent reply other threads:[~2026-02-27 18:56 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-27 9:21 [PATCH] s390/xor: Fix xor_xc_2() inline assembly constraints Heiko Carstens
2026-02-27 18:56 ` Heiko Carstens [this message]
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