linux-kernel - Re: [PATCH 5/9] drm/bridge: add drm_bridge_is

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Message-ID: <ad4f5b60c0fa5c2936713c93a9c17591@kernel.org>
Date: Thu, 10 Jul 2025 07:14:05 +0000
From: "Maxime Ripard" <mripard@...nel.org>
To: "Luca Ceresoli" <luca.ceresoli@...tlin.com>
Cc: dri-devel@...ts.freedesktop.org, imx@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, "Andrzej
 Hajda" <andrzej.hajda@...el.com>, "David Airlie" <airlied@...il.com>, "Fabio
 Estevam" <festevam@...il.com>, "Hui Pu" <Hui.Pu@...ealthcare.com>, "Jernej
 Skrabec" <jernej.skrabec@...il.com>, "Jonas Karlman" <jonas@...boo.se>, "Laurent
 Pinchart" <Laurent.pinchart@...asonboard.com>, "Liu Ying" <victor.liu@....com>, "Maarten
 Lankhorst" <maarten.lankhorst@...ux.intel.com>, "Maxime Ripard" <mripard@...nel.org>, "Neil
 Armstrong" <neil.armstrong@...aro.org>, "Pengutronix Kernel Team" <kernel@...gutronix.de>, "Philipp
 Zabel" <p.zabel@...gutronix.de>, "Robert Foss" <rfoss@...nel.org>, "Sascha
 Hauer" <s.hauer@...gutronix.de>, "Shawn Guo" <shawnguo@...nel.org>, "Simona
 Vetter" <simona@...ll.ch>, "Thomas Petazzoni" <thomas.petazzoni@...tlin.com>, "Thomas
 Zimmermann" <tzimmermann@...e.de>, "Tomi Valkeinen" <tomi.valkeinen@...asonboard.com>
Subject: Re: [PATCH 5/9] drm/bridge: add drm_bridge_is_last()

On Wed, 9 Jul 2025 18:48:04 +0200, Luca Ceresoli wrote:
> Some code needing to know whether a bridge is the last in a chain currently
> call drm_bridge_get_next_bridge(). However drm_bridge_get_next_bridge()
> will soon increment the refcount of the returned bridge, which would make
> such code more annoying to write.
> 
> 
> [ ... ]

Reviewed-by: Maxime Ripard <mripard@...nel.org>

Thanks!
Maxime