netdev - Re: [PATCH][next] sched: act_ct: avoid -Wflex-array-member-not-at-end warning

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Message-ID: <20240808194655.6bd39d2e@kernel.org>
Date: Thu, 8 Aug 2024 19:46:55 -0700
From: Jakub Kicinski <kuba@...nel.org>
To: "Gustavo A. R. Silva" <gustavoars@...nel.org>
Cc: Jamal Hadi Salim <jhs@...atatu.com>, Cong Wang
 <xiyou.wangcong@...il.com>, Jiri Pirko <jiri@...nulli.us>, "David S.
 Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, Paolo
 Abeni <pabeni@...hat.com>, netdev@...r.kernel.org,
 linux-kernel@...r.kernel.org, linux-hardening@...r.kernel.org
Subject: Re: [PATCH][next] sched: act_ct: avoid
 -Wflex-array-member-not-at-end warning

On Mon, 5 Aug 2024 09:35:46 -0600 Gustavo A. R. Silva wrote:
> -Wflex-array-member-not-at-end was introduced in GCC-14, and we are
> getting ready to enable it, globally.
> 
> Move the conflicting declaration to the end of the structure. Notice
> that `struct zones_ht_key` is a flexible structure --a structure that
> contains a flexible-array member.

I think the flex member is there purely to mark the end of the struct.
You can use offsetofend(zone) instead of offsetof(pad), and delete pad.
-- 
pw-bot: cr