linux-kernel - Re: [PATCH][next] net: inet_sock.h: Avoid thousands of -Wflex-array-member-not-at-end warnings

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Message-ID: <202511191439.C737EF792@keescook>
Date: Wed, 19 Nov 2025 14:40:04 -0800
From: Kees Cook <kees@...nel.org>
To: "Gustavo A. R. Silva" <gustavo@...eddedor.com>
Cc: Jakub Kicinski <kuba@...nel.org>,
	"Gustavo A. R. Silva" <gustavoars@...nel.org>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>, Paolo Abeni <pabeni@...hat.com>,
	Simon Horman <horms@...nel.org>, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-hardening@...r.kernel.org
Subject: Re: [PATCH][next] net: inet_sock.h: Avoid thousands of
 -Wflex-array-member-not-at-end warnings

On Tue, Nov 18, 2025 at 01:36:41PM +0900, Gustavo A. R. Silva wrote:
>  struct ip_options_data {
>  	struct ip_options_rcu	opt;
> -	char			data[40];
>  };

If this just contains struct ip_options_rcu now, can ip_options_data
just be removed entirely?

-Kees

-- 
Kees Cook