netdev - Re: [PATCH][next] wifi: wil6210: fw: Replace zero-length arrays with DECLARE_FLEX

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Message-ID: <202305161119.2158E464CF@keescook>
Date: Tue, 16 May 2023 11:19:35 -0700
From: Kees Cook <keescook@...omium.org>
To: "Gustavo A. R. Silva" <gustavoars@...nel.org>
Cc: Kalle Valo <kvalo@...nel.org>, "David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-hardening@...r.kernel.org
Subject: Re: [PATCH][next] wifi: wil6210: fw: Replace zero-length arrays with
 DECLARE_FLEX_ARRAY() helper

On Mon, May 15, 2023 at 01:24:55PM -0600, Gustavo A. R. Silva wrote:
> Zero-length arrays are deprecated, and we are moving towards adopting
> C99 flexible-array members, instead. So, replace zero-length arrays
> declarations alone in structs with the new DECLARE_FLEX_ARRAY()
> helper macro.
> 
> This helper allows for flexible-array members alone in structs.
> 
> Link: https://github.com/KSPP/linux/issues/193
> Link: https://github.com/KSPP/linux/issues/287
> Link: https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
> Signed-off-by: Gustavo A. R. Silva <gustavoars@...nel.org>

Reviewed-by: Kees Cook <keescook@...omium.org>

-- 
Kees Cook