linux-kernel - Re: [PATCH][next] carl9170: Replace zero-length arrays with flexible-array members

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Message-ID: <c9bb90ef-86fd-609a-0b55-896350602996@gmail.com>
Date:   Thu, 17 Feb 2022 17:52:00 +0100
From:   Christian Lamparter <chunkeey@...il.com>
To:     "Gustavo A. R. Silva" <gustavoars@...nel.org>,
        Christian Lamparter <chunkeey@...glemail.com>,
        Kalle Valo <kvalo@...nel.org>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>
Cc:     linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-hardening@...r.kernel.org
Subject: Re: [PATCH][next] carl9170: Replace zero-length arrays with
 flexible-array members

On 16/02/2022 20:49, 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>

Acked-by: Christian Lamparter <chunkeey@...il.com>

(I've also applied it to the firmware source)