linux-kernel - Re: [PATCH] drm/bridge: Constify struct i2c_device

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Message-ID: <CAD=FV=XJ=KVbopwovCvqR=WKi-pdpj3c5dZ57c+uUMh1ryk=+A@mail.gmail.com>
Date: Tue, 12 Nov 2024 14:29:35 -0800
From: Doug Anderson <dianders@...omium.org>
To: Christophe JAILLET <christophe.jaillet@...adoo.fr>
Cc: Jagan Teki <jagan@...rulasolutions.com>, Andrzej Hajda <andrzej.hajda@...el.com>, 
	Neil Armstrong <neil.armstrong@...aro.org>, Robert Foss <rfoss@...nel.org>, 
	Laurent Pinchart <Laurent.pinchart@...asonboard.com>, Jonas Karlman <jonas@...boo.se>, 
	Jernej Skrabec <jernej.skrabec@...il.com>, 
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, Maxime Ripard <mripard@...nel.org>, 
	Thomas Zimmermann <tzimmermann@...e.de>, David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>, 
	linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org, 
	dri-devel@...ts.freedesktop.org
Subject: Re: [PATCH] drm/bridge: Constify struct i2c_device_id

Hi,

On Tue, Nov 12, 2024 at 1:12 PM Christophe JAILLET
<christophe.jaillet@...adoo.fr> wrote:
>
> 'struct i2c_device_id' is not modified in these drivers.
>
> 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
>   15566     987      32   16585    40c9 drivers/gpu/drm/bridge/chipone-icn6211.o
>
> After:
> =====
>    text    data     bss     dec     hex filename
>   15630     923      32   16585    40c9 drivers/gpu/drm/bridge/chipone-icn6211.o
>
> Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
> ---
> Compile tested-only.
> ---
>  drivers/gpu/drm/bridge/chipone-icn6211.c   | 2 +-
>  drivers/gpu/drm/bridge/lontium-lt9211.c    | 2 +-
>  drivers/gpu/drm/bridge/lontium-lt9611.c    | 2 +-
>  drivers/gpu/drm/bridge/lontium-lt9611uxc.c | 2 +-
>  drivers/gpu/drm/bridge/ti-sn65dsi83.c      | 2 +-
>  drivers/gpu/drm/bridge/ti-sn65dsi86.c      | 2 +-
>  6 files changed, 6 insertions(+), 6 deletions(-)

Acked-by: Douglas Anderson <dianders@...omium.org>