linux-kernel - Re: [PATCH] i2c: rzv2m: Constify struct i2c

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Message-ID: <qykqy3nqly7bpsv3zmju4ts4xmcgnhduohdnaeka5zivljouoh@epyb5f36bbfk>
Date: Mon, 14 Apr 2025 00:55:53 +0200
From: Andi Shyti <andi.shyti@...nel.org>
To: Christophe JAILLET <christophe.jaillet@...adoo.fr>
Cc: Fabrizio Castro <fabrizio.castro.jz@...esas.com>, 
	linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org, linux-i2c@...r.kernel.org, 
	linux-renesas-soc@...r.kernel.org
Subject: Re: [PATCH] i2c: rzv2m: Constify struct i2c_algorithm

Hi Christophe,

On Sat, Mar 29, 2025 at 03:37:07PM +0100, Christophe JAILLET wrote:
> 'struct i2c_algorithm' is not modified in this driver.
> 
> Constifying this structure moves some data to a read-only section, so
> increase overall security, especially when the structure holds some
> function pointers.
> 
> On a x86_64, with allmodconfig, as an example:
> Before:
> ======
>    text	   data	    bss	    dec	    hex	filename
>   11027	    646	     16	  11689	   2da9	drivers/i2c/busses/i2c-rzv2m.o
> 
> After:
> =====
>    text	   data	    bss	    dec	    hex	filename
>   11107	    566	     16	  11689	   2da9	drivers/i2c/busses/i2c-rzv2m.o
> 
> Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>

merged to i2c/i2c-host.

Thanks,
Andi