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Date:   Thu, 20 May 2021 12:02:40 +0200
From:   Greg KH <gregkh@linuxfoundation.org>
To:     Kalle Valo <kvalo@codeaurora.org>
Cc:     Bhaumik Bhatt <bbhatt@codeaurora.org>,
        Loic Poulain <loic.poulain@linaro.org>,
        Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>,
        ath11k@lists.infradead.org, linux-wireless@vger.kernel.org,
        regressions@lists.linux.dev, stable@vger.kernel.org
Subject: Re: [regressions] ath11k: v5.12.3 mhi regression
Message-ID: <YKYzwBJNTy4Czd1A@kroah.com>
References: <87v97dhh2u.fsf@codeaurora.org>
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On Thu, May 20, 2021 at 12:47:53PM +0300, Kalle Valo wrote:
> Hi,
> 
> I got several reports that this mhi commit broke ath11k in v5.12.3:
> 
> commit 29b9829718c5e9bd68fc1c652f5e0ba9b9a64fed
> Author: Bhaumik Bhatt <bbhatt@codeaurora.org>
> Date:   Wed Feb 24 15:23:04 2021 -0800
> 
>     bus: mhi: core: Process execution environment changes serially
>     
>     [ Upstream commit ef2126c4e2ea2b92f543fae00a2a0332e4573c48 ]
> 
> Here are the reports:
> 
> https://bugzilla.kernel.org/show_bug.cgi?id=213055
> 
> https://bugzilla.kernel.org/show_bug.cgi?id=212187
> 
> https://bugs.archlinux.org/task/70849?project=1&string=linux
> 
> Interestingly v5.13-rc1 seems to work fine, at least for me, though I
> have not tested v5.12.3 myself. Can someone revert this commit in the
> stable release so that people get their wifi working again, please?

How does the mhi bus code relate to a ath11k driver?  What bus is that
on?

This seems odd...

greg k-h