linux-kernel - Re: [PATCH 1/6] drm/bridge: analogix: remove unused struct 'bridge

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Message-ID: <tmlrvvop6lhmppwxp5pfumq4vr24rq4byiljsqn5rt72sokslz@bfqeqmfdlqdl>
Date: Tue, 21 May 2024 00:18:13 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: "Dr. David Alan Gilbert" <linux@...blig.org>
Cc: andrzej.hajda@...el.com, neil.armstrong@...aro.org, 
	maarten.lankhorst@...ux.intel.com, daniel@...ll.ch, dri-devel@...ts.freedesktop.org, 
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/6] drm/bridge: analogix: remove unused struct
 'bridge_init'

On Mon, May 20, 2024 at 12:57:36PM +0000, Dr. David Alan Gilbert wrote:
> * Dmitry Baryshkov (dmitry.baryshkov@...aro.org) wrote:
> > On Sun, May 19, 2024 at 10:43:44PM +0000, Dr. David Alan Gilbert wrote:
> > > * Dmitry Baryshkov (dmitry.baryshkov@...aro.org) wrote:
> > > > On Sat, May 18, 2024 at 12:24:27AM +0100, linux@...blig.org wrote:
> > > > > From: "Dr. David Alan Gilbert" <linux@...blig.org>
> > > > > 
> > > > > 'bridge_init' is unused, I think following:
> > > > > commit 6a1688ae8794 ("drm/bridge: ptn3460: Convert to I2C driver model")
> > > > > (which is where a git --follow finds it)
> > > > > Remove it.
> > > > 
> > > > Please rephrase the commit message following guidelines in
> > > > Documentation/process. Use Fixes tags if suitable.
> > > 
> > > I specifically don't want to use Fixes in these set because
> > > there's no need for someone to backport this to older
> > > kernels that use the original, and many backporters
> > > use 'Fixes' as an automated means to find stuff they should
> > > backport.
> > > 
> > > Other than that, is there something specific you think I've
> > > missed?
> > 
> > It's not about missing things. It's about a way it is written.
> > Consider something like:
> > 
> > The commit aaaaaaa ("drm/bridge: foo bar") has dropped all the users of
> > the struct bridge_init from the exynos_dp_core, while retainng unused
> > structure definition. Later on the driver was reworked and the
> > definition migrated to the analogix_dp driver. Remove unused struct
> > bridge_init definition.
> 
> OK, v2 sent with text close to that.
> 
> > 
> > > 
> > > (I'm also purposely being less certain here, because --follow
> > > is showing it in a ptn3460 and I don't quite follow
> > > why that changes it here).
> > 
> > The mentioned commit is a correct one. Historically exynos_dp_core had
> > been creating the ptn3460 bridge manually. Later on this was fixed in
> > the ptn3640 driver and the code was dropped from exynos_dp_core.
> 
> Ah OK; remember I don't know the actual structure of these devices
> or the history.

It's all a part of the git history. I've just read it aloud for you.

-- 
With best wishes
Dmitry