linux-kernel - Re: [PATCH] ASoC: renesas: fsi: Constify struct fsi_stream

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Message-ID: <87qzupgqb2.wl-kuninori.morimoto.gx@renesas.com>
Date: Mon, 27 Oct 2025 00:07:46 +0000
From: Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>
To: Christophe JAILLET <christophe.jaillet@...adoo.fr>
Cc: Liam Girdwood <lgirdwood@...il.com>,
	Mark Brown <broonie@...nel.org>,
	Jaroslav Kysela <perex@...ex.cz>,
	Takashi Iwai <tiwai@...e.com>,
	linux-kernel@...r.kernel.org,
	kernel-janitors@...r.kernel.org,
	linux-sound@...r.kernel.org,
	linux-renesas-soc@...r.kernel.org
Subject: Re: [PATCH] ASoC: renesas: fsi: Constify struct fsi_stream_handler


Hi

> 'struct fsi_stream_handler' is not modified in this driver.
> 
> Constifying this structure moves some data to a read-only section, so
> increases overall security, especially when the structure holds some
> function pointers.
> 
> On a x86_64, with allmodconfig:
> Before:
> ======
>    text	   data	    bss	    dec	    hex	filename
>   51837	  12312	     64	  64213	   fad5	sound/soc/renesas/fsi.o
> 
> After:
> =====
>    text	   data	    bss	    dec	    hex	filename
>   52125	  12024	     64	  64213	   fad5	sound/soc/renesas/fsi.o
> 
> Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
> ---

Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>

Thank you for your help !!

Best regards
---
Kuninori Morimoto