linux-hardening - Re: [PATCH][next] crypto: qat - Use static

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Message-ID: <ZsBMajBTjPKy__9S@gondor.apana.org.au>
Date: Sat, 17 Aug 2024 15:08:26 +0800
From: Herbert Xu <herbert@...dor.apana.org.au>
To: "Gustavo A. R. Silva" <gustavoars@...nel.org>
Cc: Giovanni Cabiddu <giovanni.cabiddu@...el.com>,
	"David S. Miller" <davem@...emloft.net>, qat-linux@...el.com,
	linux-crypto@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-hardening@...r.kernel.org
Subject: Re: [PATCH][next] crypto: qat - Use static_assert() to check struct
 sizes

On Thu, Aug 08, 2024 at 04:05:26PM -0600, Gustavo A. R. Silva wrote:
> Commit 140e4c85d540 ("crypto: qat - Avoid -Wflex-array-member-not-at-end
> warnings") introduced tagged `struct qat_alg_buf_list_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>
> ---
>  drivers/crypto/intel/qat/qat_common/qat_bl.h | 2 ++
>  1 file changed, 2 insertions(+)

Patch applied.  Thanks.
-- 
Email: Herbert Xu <herbert@...dor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
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