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Message-ID: <20240812102220.GA468359@kernel.org>
Date: Mon, 12 Aug 2024 11:22:20 +0100
From: Simon Horman <horms@...nel.org>
To: "Gustavo A. R. Silva" <gustavoars@...nel.org>
Cc: Louis Peens <louis.peens@...igine.com>,
	Jakub Kicinski <kuba@...nel.org>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>, Paolo Abeni <pabeni@...hat.com>,
	oss-drivers@...igine.com, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-hardening@...r.kernel.org
Subject: Re: [PATCH][next] nfp: Use static_assert() to check struct sizes

On Thu, Aug 08, 2024 at 04:08:35PM -0600, Gustavo A. R. Silva wrote:
> Commit d88cabfd9abc ("nfp: Avoid -Wflex-array-member-not-at-end
> warnings") introduced tagged `struct nfp_dump_tl_hdr`. We want
> to ensure that when new members need to be added to the flexible
> structure, they are always included within this tagged struct.
> 
> So, we use `static_assert()` to ensure that the memory layout for
> both the flexible structure and the tagged struct is the same after
> any changes.
> 
> Signed-off-by: Gustavo A. R. Silva <gustavoars@...nel.org>

Reviewed-by: Simon Horman <horms@...nel.org>


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