linux-kernel - Re: [PATCH] media: v4l: marvell: select CONFIG_V4L2

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Date: Wed, 14 Feb 2024 11:48:24 +0100
From: "Arnd Bergmann" <arnd@...db.de>
To: "Sakari Ailus" <sakari.ailus@...ux.intel.com>,
 "Hans Verkuil" <hverkuil-cisco@...all.nl>
Cc: "Arnd Bergmann" <arnd@...nel.org>, linux-media@...r.kernel.org,
 linux-kernel@...r.kernel.org, "Mauro Carvalho Chehab" <mchehab@...nel.org>
Subject: Re: [PATCH] media: v4l: marvell: select CONFIG_V4L2_ASYNC where needed

On Wed, Feb 14, 2024, at 11:33, Sakari Ailus wrote:
> Hi Hans, Arnd,
>
> On Wed, Feb 14, 2024 at 11:24:41AM +0100, Hans Verkuil wrote:
>> Arnd, Sakari,
>> 
>> Is this something that needs to go to v6.8? Or just v6.9?
>> 
>> Do we need a Fixes tag?
>
> The patch seems to be related to this:
> <URL:https://lore.kernel.org/oe-kbuild-all/202402130955.f6uxzdCA-lkp@intel.com/>.
>
> So most likely yes, and Cc: stable, too.

Ah, so lkp bisected it to that commit, which means it was
already broken in 6.5, but I'm fairly sure the bug is even
older then, as your commit seems to have only uncovered
an existing problem.

It was definitely working before ff3cc65cadb5 ("media: v4l: async,
fwnode: Improve module organisation") in linux-5.13, but it's not
clear if that is the culprit. It's probably safe to backport
to v5.15 and higher.

    Arnd