linux-kernel - Re: [PATCH] gpio: Request interrupts after IRQ is initialized

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Date:   Fri, 22 Apr 2022 14:18:50 +0200
From:   Thorsten Leemhuis <regressions@...mhuis.info>
To:     Mario Limonciello <mario.limonciello@....com>
Cc:     firew4lker <firew4lker@...il.com>,
        Bartosz Golaszewski <brgl@...ev.pl>,
        Andy Shevchenko <andy.shevchenko@...il.com>,
        Shreeya Patel <shreeya.patel@...labora.com>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        open list <linux-kernel@...r.kernel.org>,
        Basavaraj.Natikar@....com, Richard.Gong@....com,
        stable@...r.kernel.org, Greg KH <gregkh@...uxfoundation.org>,
        "regressions@...ts.linux.dev" <regressions@...ts.linux.dev>,
        Linus Walleij <linus.walleij@...aro.org>
Subject: Re: [PATCH] gpio: Request interrupts after IRQ is initialized

On 21.04.22 18:07, Thorsten Leemhuis wrote:
> On 20.04.22 00:02, Linus Walleij wrote:
>> On Mon, Apr 18, 2022 at 6:34 AM Mario Limonciello
>> <mario.limonciello@....com> wrote:
>>
>>> Linus Walleij,
>>>
>>> As this is backported to 5.15.y, 5.16.y, 5.17.y and those all had point
>>> releases a bunch of people are hitting it now.  If you choose to adopt
>>> this patch instead of revert the broken one, you can add to the commit
>>> message too:
>>>
>>> Link: https://gitlab.freedesktop.org/drm/amd/-/issues/1976
>>
>> I am on parental leave kind of, but Bartosz knows what to do,
>> in this case, since it is ACPI-related, Andy knows best what
>> to do, and I see he also replied.
> 
> Bartosz, Andy, what's the status here? It looks like the patch didn't
> make any progress in the past few days (or did I miss it?). I'd really
> like to see this patch or a revert of 5467801f1fcb ("gpio: Restrict
> usage of GPIO chip irq members before initialization") mainlined by rc4,
> so Greg (CCed) can fix it in the next round of stable updates, as it
> seems quite a few people are affected by the problem.

Mario, are you aware if this patch made any progress towards getting
merged? If not, I wonder if we (you?) maybe should ask Linus to pick
this up directly giving the circumstances to speed things up (or maybe a
v2 that incorporates all the Reviewed-by/ACKs that accumulated).

Ciao, Thorsten

> Reminder: this is one of those issue that we IMHO really should fix
> quickly, as explained by a text recently added to the documentation:
> 
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/process/handling-regressions.rst#n131
> 
> Ciao, Thorsten (wearing his 'the Linux kernel's regression tracker' hat)
> 
> P.S.: As the Linux kernel's regression tracker I deal with a lot of
> reports and sometimes miss something important when writing mails like
> this. If that's the case here, don't hesitate to tell me in a public
> reply, it's in everyone's interest to set the public record straight.
>