linux-kernel - Re: [PATCH] crypto: fix flexible

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Date:   Sat, 20 Nov 2021 12:06:25 +0800
From:   Herbert Xu <herbert@...dor.apana.org.au>
To:     Julia Lawall <julia.lawall@...ia.fr>
Cc:     Megha Dey <megha.dey@...el.com>, kbuild-all@...ts.01.org,
        linux-kernel@...r.kernel.org,
        Tomasz Kantecki <tomasz.kantecki@...el.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        x86@...nel.org, "H. Peter Anvin" <hpa@...or.com>,
        linux-crypto@...r.kernel.org
Subject: Re: [PATCH] crypto: fix flexible_array.cocci warnings

On Fri, Nov 12, 2021 at 11:56:22AM +0100, Julia Lawall wrote:
> From: kernel test robot <lkp@...el.com>
> 
>  Zero-length and one-element arrays are deprecated, see
>  Documentation/process/deprecated.rst
>  Flexible-array members should be used instead.
> 
> Generated by: scripts/coccinelle/misc/flexible_array.cocci
> 
> Reported-by: kernel test robot <lkp@...el.com>
> Signed-off-by: kernel test robot <lkp@...el.com>
> Signed-off-by: Julia Lawall <julia.lawall@...ia.fr>
> ---
> 
> tree:   https://github.com/meghadey/crypto crypto-avx512
> head:   9c8c2ca77f6e2575a130bddb9767d068e1162d71
> commit: 377aede9f10ee28be954473668bc6d33c6c9db75 [5/6] crypto: aesni - AVX512 version of AESNI-GCM using VPCLMULQDQ
> :::::: branch date: 7 weeks ago
> :::::: commit date: 7 weeks ago
> 
>  aesni-intel_glue.c |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> --- a/arch/x86/crypto/aesni-intel_glue.c
> +++ b/arch/x86/crypto/aesni-intel_glue.c
> @@ -87,7 +87,7 @@ struct gcm_context_data {
>  	u64 partial_block_len;
>  	u64 unused;
>  	/* Allocate space for hash_keys later */
> -	u8 hash_keys[0];
> +	u8 hash_keys[];

Which tree did this come from? Not only is this not zero in my
tree, but it seems to have never been zero in the git history.

Thanks,
-- 
Email: Herbert Xu <herbert@...dor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt