From: "Linux regression tracking (Thorsten Leemhuis)" <regressions@leemhuis.info>
To: Felix Fietkau <nbd@nbd.name>,
Lorenzo Bianconi <lorenzo@kernel.org>,
Ryder Lee <ryder.lee@mediatek.com>
Cc: Kalle Valo <kvalo@kernel.org>,
"linux-wireless@vger.kernel.org" <linux-wireless@vger.kernel.org>,
LKML <linux-kernel@vger.kernel.org>,
"linux-mediatek@lists.infradead.org"
<linux-mediatek@lists.infradead.org>,
Linux kernel regressions list <regressions@lists.linux.dev>
Subject: [regression] Tri-band AMD RZ608 (MediaTek MT7921K) has 6GHz band disabled in kernel 6.8 despite working in <=6.6
Date: Thu, 18 Apr 2024 10:48:41 +0200 [thread overview]
Message-ID: <e17e5bf2-657a-4a22-a925-94db95fe8ca1@leemhuis.info> (raw)
Hi, Thorsten here, the Linux kernel's regression tracker.
mt7921 maintainers, I noticed a report about a regression in
bugzilla.kernel.org related to your driver. As many (most?) kernel
developers don't keep an eye on bugzilla, I decided to write this mail.
To quote from https://bugzilla.kernel.org/show_bug.cgi?id=218731 :
> On kernel 6.6.27-1-lts, running `iw list` shows that 6GHz channels are supported:>
> [...]
> Similarly, discovering and connecting to 6GHz APs works fine.
>
> However, in recent kernel 6.8.5, running `iw list` shows that 6GHz channels are disabled:
>
> [...]
>
> And scanning or connecting to 6GHz APs does not work.
>
> There's nothing in `dmesg` that differs between boots of the two kernels. On 6.8.5, 6GHz band doesn't work like it did on previous kernels.
>
> I can provide more logs or help debug the issue if needed.
See the ticket for more details. Note, you have to use bugzilla to reach
the reporter, as I sadly[1] can not CCed them in mails like this.
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
If I did something stupid, please tell me, as explained on that page.
[1] because bugzilla.kernel.org tells users upon registration their
"email address will never be displayed to logged out users"
P.S.: let me use this mail to also add the report to the list of tracked
regressions to ensure it's doesn't fall through the cracks:
#regzbot introduced: v6.6..v6.8.5
#regzbot title: wifi drivers: mt7921: 6GHz band stopped working
#regzbot from: AlexDeLorenzo.dev
#regzbot duplicate: https://bugzilla.kernel.org/show_bug.cgi?id=218731
#regzbot ignore-activity
next reply other threads:[~2024-04-18 8:48 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-18 8:48 Linux regression tracking (Thorsten Leemhuis) [this message]
2024-05-03 5:58 ` [regression] Tri-band AMD RZ608 (MediaTek MT7921K) has 6GHz band disabled in kernel 6.8 despite working in <=6.6 Linux regression tracking (Thorsten Leemhuis)
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