netdev - Re: [PATCH][next] iwlwifi: mei: Replace zero-length array with flexible-array member

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Message-ID: <87wngezkyf.fsf@kernel.org>
Date:   Mon, 28 Mar 2022 08:48:24 +0300
From:   Kalle Valo <kvalo@...nel.org>
To:     "Gustavo A. R. Silva" <gustavoars@...nel.org>
Cc:     Kees Cook <keescook@...omium.org>,
        Luca Coelho <luciano.coelho@...el.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-hardening@...r.kernel.org
Subject: Re: [PATCH][next] iwlwifi: mei: Replace zero-length array with flexible-array member

"Gustavo A. R. Silva" <gustavoars@...nel.org> writes:

> On Wed, Feb 16, 2022 at 12:35:22PM -0800, Kees Cook wrote:
>> On Wed, Feb 16, 2022 at 01:50:30PM -0600, Gustavo A. R. Silva wrote:
>> > There is a regular need in the kernel to provide a way to declare
>> > having a dynamically sized set of trailing elements in a structure.
>> > Kernel code should always use “flexible array members”[1] for these
>> > cases. The older style of one-element or zero-length arrays should
>> > no longer be used[2].
>> > 
>> > [1] https://en.wikipedia.org/wiki/Flexible_array_member
>> > [2]
>> > https://www.kernel.org/doc/html/v5.16/process/deprecated.html#zero-length-and-one-element-arrays
>> > 
>> > Link: https://github.com/KSPP/linux/issues/78
>> > Signed-off-by: Gustavo A. R. Silva <gustavoars@...nel.org>
>> 
>> Reviewed-by: Kees Cook <keescook@...omium.org>
>
> Hi all,
>
> Friendly ping: can someone take this, please?
>
> ...I can take this in my -next tree in the meantime.

I'll take this. Luca, ack?

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