linux-kernel - Re: [PATCH] EDAC, sb

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Date:   Sat, 10 Mar 2018 15:04:34 +0100
From:   Borislav Petkov <bp@...en8.de>
To:     "Gustavo A. R. Silva" <garsilva@...eddedor.com>
Cc:     Mauro Carvalho Chehab <mchehab@...nel.org>,
        linux-edac@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] EDAC, sb_edac: Remove VLA usage

On Fri, Mar 09, 2018 at 09:02:18PM -0600, Gustavo A. R. Silva wrote:
> In preparation to enabling -Wvla, remove VLA and replace it
> with a fixed-length array instead.
> 
> Fixed as part of the directive to remove all VLAs from
> the kernel: https://lkml.org/lkml/2018/3/7/621
> 
> Signed-off-by: Gustavo A. R. Silva <garsilva@...eddedor.com>
> ---
> 
> Notice that due to this change, the field max_interleave is no longer
> used after it has been initialized. Maybe it should be removed?

Yes.

> @@ -110,6 +110,7 @@ static const u32 knl_interleave_list[] = {
>  	0xdc, 0xe4, 0xec, 0xf4, 0xfc, /* 15-19 */
>  	0x104, 0x10c, 0x114, 0x11c,   /* 20-23 */
>  };
> +#define MAX_INTERLEAVE	ARRAY_SIZE(knl_interleave_list)

define that as the max of all interleave lists array sizes so that
people can update it properly when new interleave lists get added.

-- 
Regards/Gruss,
    Boris.

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