linux-kernel - Re: [REGRESSION] MT7915E doesn't work any more with v6.9

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Message-ID: <878qzy9zly.fsf@kernel.org>
Date: Sat, 25 May 2024 09:26:01 +0300
From: Kalle Valo <kvalo@...nel.org>
To: Johannes Berg <johannes@...solutions.net>
Cc: Oleksandr Natalenko <oleksandr@...alenko.name>,
  linux-kernel@...r.kernel.org,  linux-wireless@...r.kernel.org,  "Linux
 regression tracking (Thorsten Leemhuis)" <regressions@...mhuis.info>,
  linux-mediatek@...ts.infradead.org,
  linux-arm-kernel@...ts.infradead.org,  Felix Fietkau <nbd@....name>,
  Lorenzo Bianconi <lorenzo@...nel.org>,  Ryder Lee
 <ryder.lee@...iatek.com>,  Shayne Chen <shayne.chen@...iatek.com>,  Sean
 Wang <sean.wang@...iatek.com>,  Matthias Brugger <matthias.bgg@...il.com>,
  AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
  Peter Chiu <chui-hao.chiu@...iatek.com>,  StanleyYP Wang
 <StanleyYP.Wang@...iatek.com>,  Linux regressions mailing list
 <regressions@...ts.linux.dev>
Subject: Re: [REGRESSION] MT7915E doesn't work any more with v6.9

Johannes Berg <johannes@...solutions.net> writes:

> On Wed, 2024-05-15 at 00:51 +0200, Oleksandr Natalenko wrote:
>> Also /cc Johannes because of this commit:
>> 
>> 6092077ad09ce wifi: mac80211: introduce 'channel request'
>> 
>> On středa 15. května 2024 0:43:40, SELČ Oleksandr Natalenko wrote:
>> > Hello Felix, Lorenzo et al.
>> > 
>> > With v6.9 kernel the following card:
>> > 
>> > 01:00.0 Unclassified device [0002]: MEDIATEK Corp. MT7915E
>> > 802.11ax PCI Express Wireless Network Adapter [14c3:7915]
>> > 
>> > doesn't work any more. Upon mt7915e module insertion the following splat happens:
>> > 
>
> 6.9 didn't get commit 2f7cf3b61d85 ("wifi: mt76: mt7915: add missing
> chanctx ops")? Huh?

Yeah, commit 2f7cf3b61d85 should have been taken to wireless tree but it
fell through the cracks. I didn't realise that it's an important bugfix
and the commit message didn't give any indication of that either.

But commit 2f7cf3b61d85 is now in Linus' tree so it would be good if
someone could submit it to stable releases.

-- 
https://patchwork.kernel.org/project/linux-wireless/list/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches