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From: Bhaumik Bhatt <bbhatt@codeaurora.org>
To: Greg KH <gregkh@linuxfoundation.org>
Cc: Kalle Valo <kvalo@codeaurora.org>,
	Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>,
	Loic Poulain <loic.poulain@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
Date: Thu, 20 May 2021 11:04:05 -0700	[thread overview]
Message-ID: <608474b9b9feae5bd0616ad16d6d6bbd@codeaurora.org> (raw)
In-Reply-To: <YKajWVPUSTzNVVm8@kroah.com>

On 2021-05-20 10:58 AM, Greg KH wrote:
> On Thu, May 20, 2021 at 10:38:12AM -0700, Bhaumik Bhatt wrote:
>> On 2021-05-20 05:36 AM, Kalle Valo wrote:
>> > Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> writes:
>> >
>> > > On Thu, May 20, 2021 at 12:02:40PM +0200, Greg KH wrote:
>> > > > 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?
>> > > >
>> > >
>> > > MHI is the transport used by the ath11k driver to work with the WLAN
>> > > devices
>> > > over PCIe.
>> > >
>> > > Regarding the bug, I'd suggest to wait for Bhaumik (the author of
>> > > 29b9829718c5)
>> > > to comment on the possible commit which needs backporting from
>> > > mainline.
>> >
>> > Ok, but if a quick fix is not available I think we should just revert
>> > this in the stable releases. I also got a report that v5.11.21 is
>> > broken:
>> >
>> > https://bugzilla.kernel.org/show_bug.cgi?id=213055#c11
>> 
>> Please pick [1] as the dependency to [ Upstream commit
>> ef2126c4e2ea2b92f543fae00a2a0332e4573c48 ].
> 
> what is [1]???
> 
> What commit do I need to backport, a commit id would be nice...
> 
> thanks,
> 
> greg k-h
Sure Greg. Commit id is: 4884362f6977fc05cbec736625665241c0e0732f

Title of patch:
bus: mhi: core: Download AMSS image from appropriate function

It was supposed to be a link but not sure why it's not seen.

Thanks,
Bhaumik
---
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora 
Forum,
a Linux Foundation Collaborative Project

  reply	other threads:[~2021-05-20 18:04 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-20  9:47 [regressions] ath11k: v5.12.3 mhi regression Kalle Valo
2021-05-20 10:02 ` Greg KH
2021-05-20 10:43   ` Manivannan Sadhasivam
2021-05-20 12:36     ` Kalle Valo
2021-05-20 17:38       ` Bhaumik Bhatt
2021-05-20 17:58         ` Greg KH
2021-05-20 18:04           ` Bhaumik Bhatt [this message]
2021-05-20 18:17             ` Greg KH
2021-05-24  5:56               ` Kalle Valo

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