linux-kernel - Re: [PATCH 0/2][next] vfio/ccw: Replace one-element array with flexible-array member

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Message-ID: <410d06c5-90f5-93dc-6e6d-37e5923fe0a7@linux.ibm.com>
Date:   Tue, 23 May 2023 12:36:53 -0400
From:   Matthew Rosato <mjrosato@...ux.ibm.com>
To:     "Gustavo A. R. Silva" <gustavoars@...nel.org>,
        Eric Farman <farman@...ux.ibm.com>,
        Halil Pasic <pasic@...ux.ibm.com>,
        Vineeth Vijayan <vneethv@...ux.ibm.com>,
        Peter Oberparleiter <oberpar@...ux.ibm.com>,
        Heiko Carstens <hca@...ux.ibm.com>,
        Vasily Gorbik <gor@...ux.ibm.com>,
        Alexander Gordeev <agordeev@...ux.ibm.com>,
        Christian Borntraeger <borntraeger@...ux.ibm.com>,
        Sven Schnelle <svens@...ux.ibm.com>
Cc:     linux-s390@...r.kernel.org, kvm@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-hardening@...r.kernel.org
Subject: Re: [PATCH 0/2][next] vfio/ccw: Replace one-element array with
 flexible-array member

On 5/22/23 9:34 PM, Gustavo A. R. Silva wrote:
> Hi!
> 
> This small series aims to replace a one-element array with a
> flexible-array member in struct vfio_ccw_parent.
> 
> This helps with the ongoing efforts to tighten the FORTIFY_SOURCE
> routines on memcpy() and help us make progress towards globally
> enabling -fstrict-flex-arrays=3 [1].
> 
> Link: https://github.com/KSPP/linux/issues/79
> Link: https://github.com/KSPP/linux/issues/160
> Link: https://github.com/KSPP/linux/issues/297
> Link: https://gcc.gnu.org/pipermail/gcc-patches/2022-October/602902.html [1]
> 
> Gustavo A. R. Silva (2):
>   vfio/ccw: Replace one-element array with flexible-array member
>   vfio/ccw: Use struct_size() helper
> 
>  drivers/s390/cio/vfio_ccw_drv.c     | 2 +-
>  drivers/s390/cio/vfio_ccw_private.h | 2 +-
>  2 files changed, 2 insertions(+), 2 deletions(-)
> 

Hi Gustavo,

Thanks! For the series:

Reviewed-by: Matthew Rosato <mjrosato@...ux.ibm.com>