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Date:   Sun, 9 Apr 2023 11:18:50 +0200
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Subject: Re: [regression] Bug 217252 - warning: v4l_enum_fmt+0x125a/0x1c20 -
 Unknown pixelformat 0x00000000
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From:   "Linux regression tracking #update (Thorsten Leemhuis)" 
        <regressions@leemhuis.info>
To:     Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc:     Mauro Carvalho Chehab <mchehab@kernel.org>,
        Linux Media Mailing List <linux-media@vger.kernel.org>,
        LKML <linux-kernel@vger.kernel.org>,
        Linux kernel regressions list <regressions@lists.linux.dev>
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          Linux regressions mailing list 
          <regressions@lists.linux.dev>
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[TLDR: This mail in primarily relevant for Linux kernel regression
tracking. See link in footer if these mails annoy you.]

On 29.03.23 13:25, Linux regression tracking (Thorsten Leemhuis) wrote:
> 
> I noticed a regression report in bugzilla.kernel.org. As many (most?)
> kernel developers don't keep an eye on it, I decided to forward it by mail.
> 
> Note, you have to use bugzilla to reach the reporter, as I sadly[1] can
> not CCed them to mails like this.
> 
> Quoting from https://bugzilla.kernel.org/show_bug.cgi?id=217252 :
> 
> #regzbot introduced: v5.15..v6.1.21
> https://bugzilla.kernel.org/show_bug.cgi?id=217252
> #regzbot title: media: Unknown pixelformat 0x00000000
> #regzbot ignore-activity

Update the status, this was caused by a backport of a recent mainline
commit to various stable trees.

#regzbot introduced: 50459f103edf
#regzbot fix: media: usb: uvc: fill in description for unknown pixelformats
#regzbot ignore-activity

For details about the fix see:
https://lore.kernel.org/all/4b1bc0d5-808b-816d-d7de-5baa8851e74f@xs4all.nl/

Ciao, Thorsten (wearing his 'the Linux kernel's regression tracker' hat)
--
Everything you wanna know about Linux kernel regression tracking:
https://linux-regtracking.leemhuis.info/about/#tldr
That page also explains what to do if mails like this annoy you.