netdev - Re: [PATCH] Revert "mt76: mt7921: enable aspm by default"

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Message-ID: <668f1310cc78b17c24ce7be10f5f907d5578e280.camel@mediatek.com>
Date:   Tue, 12 Apr 2022 19:06:54 +0800
From:   Deren Wu <deren.wu@...iatek.com>
To:     Kalle Valo <kvalo@...nel.org>, Philippe Schenker <dev@...henker.ch>
CC:     <linux-wireless@...r.kernel.org>, Felix Fietkau <nbd@....name>,
        <linux@...mhuis.info>, "David S. Miller" <davem@...emloft.net>,
        "Jakub Kicinski" <kuba@...nel.org>,
        Lorenzo Bianconi <lorenzo.bianconi83@...il.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Paolo Abeni <pabeni@...hat.com>,
        Ryder Lee <ryder.lee@...iatek.com>,
        "Sean Wang" <sean.wang@...iatek.com>,
        Shayne Chen <shayne.chen@...iatek.com>,
        "YN Chen" <YN.Chen@...iatek.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-mediatek@...ts.infradead.org>, <netdev@...r.kernel.org>
Subject: Re: [PATCH] Revert "mt76: mt7921: enable aspm by default"

On Tue, 2022-04-12 at 12:37 +0300, Kalle Valo wrote:
> Philippe Schenker <dev@...henker.ch> writes:
> 
> > This reverts commit bf3747ae2e25dda6a9e6c464a717c66118c588c8.
> > 
> > This commit introduces a regression on some systems where the
> > kernel is
> > crashing in different locations after a reboot was issued.
> > 
> > This issue was bisected on a Thinkpad P14s Gen2 (AMD) with latest
> > firmware.
> > 
> > Link: 
> > https://urldefense.com/v3/__https://lore.kernel.org/linux-wireless/5077a953487275837e81bdf1808ded00b9676f9f.camel@pschenker.ch/__;!!CTRNKA9wMg0ARbw!09tjyaQlMci3fVI3yiNiDJKUW_qwNA_CbVhoAraeIX96B99Q14J4iDycWA9cq36Y$
> >  
> > Signed-off-by: Philippe Schenker <dev@...henker.ch>
> 
> Can I take this to wireless tree? Felix, ack?
> 
> I'll also add:
> 
> Fixes: bf3747ae2e25 ("mt76: mt7921: enable aspm by default")
> 

Hi Kalle,

We have a patch for a similar problem. Can you wait for the
verification by Philippe?
Commit 602cc0c9618a81 ("mt76: mt7921e: fix possible probe failure after
reboot")
Link: 
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/drivers/net/wireless/mediatek/mt76?id=602cc0c9618a819ab00ea3c9400742a0ca318380

I can reproduce the problem in my v5.16-rc5 desktop. And the issue can
be fixed when the patch applied.


Hi Philippe,

Can you please help to check the patch in your platform?


Regards,
Deren