linux-kernel - Re: [PATCH 0/3] Revert panel fixes and original buggy patch

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Message-ID: <80be087e-0341-487f-b6d9-8772d7c6128a@linaro.org>
Date:   Tue, 28 Nov 2023 09:30:29 +0100
From:   Neil Armstrong <neil.armstrong@...aro.org>
To:     Linus Walleij <linus.walleij@...aro.org>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>
Cc:     Liu Ying <victor.liu@....com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Andrzej Hajda <andrzej.hajda@...el.com>,
        Robert Foss <rfoss@...nel.org>,
        Jonas Karlman <jonas@...boo.se>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>, linux-kernel@...r.kernel.org,
        dri-devel@...ts.freedesktop.org
Subject: Re: [PATCH 0/3] Revert panel fixes and original buggy patch

Hi Linus,

On 28/11/2023 00:36, Linus Walleij wrote:
> On Tue, Nov 28, 2023 at 12:25 AM Laurent Pinchart
> <laurent.pinchart@...asonboard.com> wrote:
>> On Tue, Nov 28, 2023 at 12:10:18AM +0100, Linus Walleij wrote:
>>> This series reverts the attempts to fix the bug that went
>>> into v6.7-rc1 in commit 199cf07ebd2b
>>> "drm/bridge: panel: Add a device link between drm device and panel device"
>>> and then it reverts that patch as well.
>>>
>>> Signed-off-by: Linus Walleij <linus.walleij@...aro.org>
>>> ---
>>> Linus Walleij (3):
>>>        Revert "driver core: Export device_is_dependent() to modules"
>>>        Revert "drm/bridge: panel: Check device dependency before managing device link"
>>>        Revert "drm/bridge: panel: Add a device link between drm device and panel device"
>>
>> To preserve bisectability, you should revert in the opposite order.
> 
> You mean apply patch 2, then 1, then 3 so the kernel builds after each
> revert?
> 
> Yeah that's a good idea, I don't know if I should apply these though, better
> someone else do it since I screwed up too much.
> 
> Another option is to just squash the reverts into one, that bisects too :/

You can apply them now, or tell me if you want me to apply them.

Neil

> 
> Yours,
> Linus Walleij