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Date:   Sun, 30 Jan 2022 13:02:59 +0530
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Subject: Re: Regression in 5.16.3 with mt7921e
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To:     Linux stable <stable@vger.kernel.org>,
        Linux wireless <linux-wireless@vger.kernel.org>
References: <CAMP44s2vAmfHU+h5bSp5FJvks7T+b_tpdU1U4pBvK9jFF6C=eQ@mail.gmail.com>
From:   Abhijeet Viswa <abhijeetviswa@gmail.com>
Cc:     Felipe Contreras <felipe.contreras@gmail.com>
In-Reply-To: <CAMP44s2vAmfHU+h5bSp5FJvks7T+b_tpdU1U4pBvK9jFF6C=eQ@mail.gmail.com>
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I can confirm this regression. I have an Asus TUF laptop.

I've also tried "resetting" the chip by holding down the power button 
for 60 seconds. This usually helped in previous versions.

If it helps, this issue does not exist in Windows (I have a dualboot).

This is the dmesg log when trying to bring the interface up: 
https://dpaste.org/Wouy

Happy to help diagnosing this further.

Thanks
Abhijeet

On 30/01/22 00:35, Felipe Contreras wrote:
> Hello,
> 
> I've always had trouble with this driver in my Asus Zephyrus laptop,
> but I was able to use it eventually, that's until 5.16.3 landed.
> 
> This version completely broke it. I'm unable to bring the interface
> up, no matter what I try.
> 
> Before, sometimes I was able to make the chip work by suspending the
> laptop, but in 5.16.3 the machine doesn't wake up (which is probably
> another issue).
> 
> Reverting back to 5.16.2 makes it work.
> 
> Let me know if you need more information, or if you would like me to
> bisect the issue.
> 
> Cheers.
>