linux-kernel - Re: [PATCH 2/4] soc: mediatek: pwrap: Constify some struct int[]

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Date: Wed, 3 Jul 2024 15:02:07 +0200
From: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
To: Christophe JAILLET <christophe.jaillet@...adoo.fr>,
 matthias.bgg@...il.com, fparent@...libre.com, fchiby@...libre.com,
 s.hauer@...gutronix.de
Cc: linux-arm-kernel@...ts.infradead.org, linux-mediatek@...ts.infradead.org,
 linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: Re: [PATCH 2/4] soc: mediatek: pwrap: Constify some struct int[]

Il 29/06/24 11:19, Christophe JAILLET ha scritto:
> These arrays are not modified in this driver.
> 
> Constifying this structure moves some data to a read-only section, so
> increase overall security.
> 
> On a x86_64, with allmodconfig, as an example:
> Before:
> ======
>     text	   data	    bss	    dec	    hex	filename
>    45528	   8532	     16	  54076	   d33c	drivers/soc/mediatek/mtk-pmic-wrap.o
> 
> After:
> =====
>     text	   data	    bss	    dec	    hex	filename
>    52664	   1384	     16	  54064	   d330	drivers/soc/mediatek/mtk-pmic-wrap.o
> 
> Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>