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Re: [PATCH] video/mbx: constify fb_fix_screeninfo and fb_var_screeninfo structures

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  Re: [PATCH] video/mbx: constify fb_fix_screeninfo and  fb_var_screeninfo structures Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> - 2017-08-01 14:30 +0200

#1700975 — Re: [PATCH] video/mbx: constify fb_fix_screeninfo and fb_var_screeninfo structures

On Friday, July 07, 2017 08:09:56 PM Gustavo A. R. Silva wrote:
> These structures are only used to copy into other structures,
> so declare them as const.
> 
> This issue was detected using Coccinelle and the following semantic patch:
> 
> @r disable optional_qualifier@
> identifier i;
> position p;
> @@
> static struct fb_fix_screeninfo i@p = { ... };
> 
> @ok@
> identifier r.i;
> expression e;
> position p;
> @@
> e = i@p
> 
> @bad@
> position p != {r.p,ok.p};
> identifier r.i;
> struct fb_fix_screeninfo e;
> @@
> e@i@p
> 
> @depends on !bad disable optional_qualifier@
> identifier r.i;
> @@
> static
> +const
>  struct fb_fix_screeninfo i = { ... };
> 
> The semantic patch for fb_var_screeninfo is analogous.
> 
> Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>

Patch queued for 4.14, thanks.

Best regards,
--
Bartlomiej Zolnierkiewicz
Samsung R&D Institute Poland
Samsung Electronics

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