From: Simon Horman <horms@kernel.org>
To: "Gustavo A. R. Silva" <gustavoars@kernel.org>
Cc: Louis Peens <louis.peens@corigine.com>,
Jakub Kicinski <kuba@kernel.org>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Paolo Abeni <pabeni@redhat.com>,
oss-drivers@corigine.com, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-hardening@vger.kernel.org
Subject: Re: [PATCH][next] nfp: Use static_assert() to check struct sizes
Date: Mon, 12 Aug 2024 11:22:20 +0100 [thread overview]
Message-ID: <20240812102220.GA468359@kernel.org> (raw)
In-Reply-To: <ZrVB43Hen0H5WQFP@cute>
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@kernel.org>
Reviewed-by: Simon Horman <horms@kernel.org>
next prev parent reply other threads:[~2024-08-12 10:22 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-08-08 22:08 [PATCH][next] nfp: Use static_assert() to check struct sizes Gustavo A. R. Silva
2024-08-12 10:22 ` Simon Horman [this message]
2024-08-13 2:10 ` patchwork-bot+netdevbpf
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