linux-hardening - Re: [PATCH] s390/vfio-ap: Replace one-element array with flexible array member

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Message-ID: <Z5jiFcbylhWSs5gq@li-008a6a4c-3549-11b2-a85c-c5cc2836eea2.ibm.com>
Date: Tue, 28 Jan 2025 14:56:37 +0100
From: Alexander Gordeev <agordeev@...ux.ibm.com>
To: Thorsten Blum <thorsten.blum@...ux.dev>,
        Tony Krowiak <akrowiak@...ux.ibm.com>,
        Halil Pasic <pasic@...ux.ibm.com>, Jason Herne <jjherne@...ux.ibm.com>
Cc: Harald Freudenberger <freude@...ux.ibm.com>,
        Holger Dengler <dengler@...ux.ibm.com>,
        Heiko Carstens <hca@...ux.ibm.com>, Vasily Gorbik <gor@...ux.ibm.com>,
        Christian Borntraeger <borntraeger@...ux.ibm.com>,
        Sven Schnelle <svens@...ux.ibm.com>, linux-hardening@...r.kernel.org,
        linux-s390@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] s390/vfio-ap: Replace one-element array with flexible
 array member

On Thu, Jan 16, 2025 at 02:18:59PM +0100, Thorsten Blum wrote:
> Replace the deprecated one-element array with a modern flexible array
> member in the struct ap_matrix_dev.
> 
> Use struct_size() to calculate the number of bytes to allocate for
> matrix_dev with a single mdev_type.
> 
> Link: https://github.com/KSPP/linux/issues/79
> Signed-off-by: Thorsten Blum <thorsten.blum@...ux.dev>
> ---
>  drivers/s390/crypto/vfio_ap_drv.c     | 2 +-
>  drivers/s390/crypto/vfio_ap_private.h | 2 +-
>  2 files changed, 2 insertions(+), 2 deletions(-)

Hi Tony, Halil, Jason,

Could you please take a look?

Thanks!