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Message-ID: <312c3226cd0581d00b39db8daea69417@kernel.org>
Date: Wed, 29 Oct 2025 08:54:51 +0000
From: "Maxime Ripard" <mripard@kernel.org>
To: "Luca Ceresoli" <luca.ceresoli@bootlin.com>
Subject: Re: [PATCH v3 3/7] drm/bridge: drm_bridge_attach: lock the encoder
 chain mutex during insertion
In-Reply-To: <20251009-drm-bridge-alloc-encoder-chain-mutex-v3-3-c90ed744efec@bootlin.com>
References: <20251009-drm-bridge-alloc-encoder-chain-mutex-v3-3-c90ed744efec@bootlin.com>
Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, "Andrzej
 Hajda" <andrzej.hajda@intel.com>, "David Airlie" <airlied@gmail.com>, "Hui
 Pu" <Hui.Pu@gehealthcare.com>, "Jernej Skrabec" <jernej.skrabec@gmail.com>, "Jonas
 Karlman" <jonas@kwiboo.se>, "Laurent Pinchart" <Laurent.pinchart@ideasonboard.com>, "Maarten
 Lankhorst" <maarten.lankhorst@linux.intel.com>, "Maxime Ripard" <mripard@kernel.org>, "Neil
 Armstrong" <neil.armstrong@linaro.org>, "Robert Foss" <rfoss@kernel.org>, "Simona
 Vetter" <simona@ffwll.ch>, "Thomas Petazzoni" <thomas.petazzoni@bootlin.com>, "Thomas
 Zimmermann" <tzimmermann@suse.de>
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On Thu, 9 Oct 2025 13:38:58 +0200, Luca Ceresoli wrote:
> drm_bridge_attach() modifies the encoder bridge chain, so take a mutex
> around such operations to allow users of the chain to protect themselves
> from chain modifications while iterating.
> 
> Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
> 
> [ ... ]

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

Thanks!
Maxime