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

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Message-ID: <de25abef-c071-9f71-36dd-8f2f0b77dc28@leemhuis.info>
Date:   Thu, 21 Apr 2022 18:07:10 +0200
From:   Thorsten Leemhuis <regressions@...mhuis.info>
To:     Linus Walleij <linus.walleij@...aro.org>,
        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>
Subject: Re: [PATCH] gpio: Request interrupts after IRQ is initialized

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.

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.