linux-kernel - Re: [PATCH v2][next] nfp: tls: Avoid -Wflex-array-member-not-at-end warnings

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Message-Id: <176852452747.3062255.8603964657157273318.b4-ty@kernel.org>
Date: Thu, 15 Jan 2026 16:48:49 -0800
From: Kees Cook <kees@...nel.org>
To: Jakub Kicinski <kuba@...nel.org>,
	Simon Horman <horms@...nel.org>,
	Andrew Lunn <andrew+netdev@...n.ch>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Paolo Abeni <pabeni@...hat.com>,
	"Gustavo A. R. Silva" <gustavoars@...nel.org>
Cc: Kees Cook <kees@...nel.org>,
	oss-drivers@...igine.com,
	netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-hardening@...r.kernel.org
Subject: Re: [PATCH v2][next] nfp: tls: Avoid -Wflex-array-member-not-at-end warnings

On Thu, 27 Nov 2025 12:21:14 +0900, 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.
> 
> So, in order to avoid ending up with flexible-array members in the
> middle of other structs, we use the `struct_group_tagged()` helper
> to separate the flexible array from the rest of the members in the
> flexible structure. We then use the newly created tagged `struct
> nfp_crypto_req_add_front_hdr` to replace the type of the objects
> causing trouble in a couple of structures.
> 
> [...]

Applied to for-next/hardening, thanks!

[1/1] nfp: tls: Avoid -Wflex-array-member-not-at-end warnings
      https://git.kernel.org/kees/c/cfbb53d25cfa

Take care,

-- 
Kees Cook