linux-kernel - Re: [PATCH v6 04/26] drm/bridge: panel: drm_panel_bridge_remove: warn when called on non-panel bridge

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Message-ID: <20250207095904.478df621@booty>
Date: Fri, 7 Feb 2025 09:59:04 +0100
From: Luca Ceresoli <luca.ceresoli@...tlin.com>
To: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
Cc: Simona Vetter <simona@...ll.ch>, Inki Dae <inki.dae@...sung.com>, Jagan
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Subject: Re: [PATCH v6 04/26] drm/bridge: panel: drm_panel_bridge_remove:
 warn when called on non-panel bridge

On Fri, 7 Feb 2025 04:22:25 +0200
Dmitry Baryshkov <dmitry.baryshkov@...aro.org> wrote:

> On Thu, Feb 06, 2025 at 07:14:19PM +0100, Luca Ceresoli wrote:
> > This function is for panel_bridge instances only. The silent return when
> > invoked on other bridges might hide actual errors, so avoid them to go
> > unnoticed.  
> 
> Is there a real case of something using this function in a wrong way?

I don't know, but there was one in my v5 code. Having this warning
would have saved me a lot of debugging, so it looked useful for future
developers.

Luca

-- 
Luca Ceresoli, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com