linux-kernel - Re: [PATCH][next] habanalabs: Replace zero-length arrays with flexible-array members

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Message-ID: <CAFCwf13yp0Sj9i9Nmq_WOU0gcwfjjWz1vgzMeD5_1YWj0aWO_g@mail.gmail.com>
Date:   Tue, 10 Jan 2023 15:34:18 +0200
From:   Oded Gabbay <ogabbay@...nel.org>
To:     Stanislaw Gruszka <stanislaw.gruszka@...ux.intel.com>
Cc:     "Gustavo A. R. Silva" <gustavoars@...nel.org>,
        linux-hardening@...r.kernel.org, linux-kernel@...r.kernel.org,
        dri-devel@...ts.freedesktop.org
Subject: Re: [PATCH][next] habanalabs: Replace zero-length arrays with
 flexible-array members

On Tue, Jan 10, 2023 at 12:46 PM Stanislaw Gruszka
<stanislaw.gruszka@...ux.intel.com> wrote:
>
> On Mon, Jan 09, 2023 at 07:39:47PM -0600, Gustavo A. R. Silva wrote:
> > Zero-length arrays are deprecated[1] and we are moving towards
> > adopting C99 flexible-array members instead. So, replace zero-length
> > arrays in a couple of structures with flex-array members.
> >
> > 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 [2].
> >
> > Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#zero-length-and-one-element-arrays [1]
> > Link: https://gcc.gnu.org/pipermail/gcc-patches/2022-October/602902.html [2]
> > Link: https://github.com/KSPP/linux/issues/78
> > Signed-off-by: Gustavo A. R. Silva <gustavoars@...nel.org>
>
> Reviewed-by: Stanislaw Gruszka <stanislaw.gruszka@...ux.intel.com>
Thanks,
applied to -next.
Oded