linux-kernel - Re: [PATCH v7 29/36] drm/vc4: tests: Remove vc4_dummy

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Date: Wed, 28 Feb 2024 17:16:48 +0100
From: Maxime Ripard <mripard@...nel.org>
To: Maíra Canal <mcanal@...lia.com>
Cc: Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, 
	Thomas Zimmermann <tzimmermann@...e.de>, David Airlie <airlied@...il.com>, 
	Daniel Vetter <daniel@...ll.ch>, Jonathan Corbet <corbet@....net>, 
	Sandy Huang <hjc@...k-chips.com>, Heiko Stübner <heiko@...ech.de>, 
	Chen-Yu Tsai <wens@...e.org>, Jernej Skrabec <jernej.skrabec@...il.com>, 
	Samuel Holland <samuel@...lland.org>, Hans Verkuil <hverkuil@...all.nl>, 
	Sebastian Wick <sebastian.wick@...hat.com>, Ville Syrjälä <ville.syrjala@...ux.intel.com>, 
	dri-devel@...ts.freedesktop.org, linux-arm-kernel@...ts.infradead.org, linux-doc@...r.kernel.org, 
	linux-kernel@...r.kernel.org, linux-media@...r.kernel.org, linux-rockchip@...ts.infradead.org, 
	linux-sunxi@...ts.linux.dev
Subject: Re: [PATCH v7 29/36] drm/vc4: tests: Remove vc4_dummy_plane structure

On Tue, Feb 27, 2024 at 07:45:01PM -0300, Maíra Canal wrote:
> Hi Maxime,
> 
> On 2/27/24 10:02, Maxime Ripard wrote:
> > Hi Maíra,
> > 
> > Thanks for you reviews!
> > 
> > On Mon, Feb 26, 2024 at 09:29:32AM -0300, Maíra Canal wrote:
> > > On 2/22/24 15:14, Maxime Ripard wrote:
> > > > The vc4_dummy_plane structure is an exact equivalent to vc4_plane, so we
> > > 
> > > Maybe I understood incorrectly, but isn't the vc4_dummy_plane structure
> > > equivalent to drm_plane?
> > 
> > Both statements are true :)
> > 
> > vc4 itself uses vc4_plane to holds its plane-related content, but it
> > turns out that there's nothing in that structure anymore and vc4_plane
> > == drm_plane.
> > 
> > In our mock driver, we have another structure meant to store the
> > mock-plane-related content which doesn't have anything in it anymore,
> > and is thus equivalent to vc4_plane.
> > 
> > So, basically, vc4_dummy_plane == vc4_plane == drm_plane.
> > 
> > This patch is only about getting rid of vc4_dummy_plane though.
> > 
> > Is it clearer?
> > 
> 
> Yeah, with that pointed out, you can add my:

I'll rephrase for the next version then

> Reviewed-by: Maíra Canal <mcanal@...lia.com>

Thanks!
Maxime

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