linux-kernel - Re: irq: Invalid fwnode type (2) for irqdomain

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Message-ID: <616db264-ba9f-f729-25a9-ee57ee8c2f10@arm.com>
Date:   Thu, 6 Jul 2017 15:21:42 +0100
From:   Marc Zyngier <marc.zyngier@....com>
To:     Thomas Gleixner <tglx@...utronix.de>,
        Paul Menzel <pmenzel@...gen.mpg.de>
Cc:     linux-kernel@...r.kernel.org
Subject: Re: irq: Invalid fwnode type (2) for irqdomain

On 05/07/17 11:41, Thomas Gleixner wrote:
> On Wed, 5 Jul 2017, Paul Menzel wrote:
>> On a Lenovo X60t with coreboot based firmware testing the latest master
>> branch from Linus, the message below is new, and isn’t there with Linux
>> 4.12.
>>
>> ```
>> irq: Invalid fwnode type (2) for irqdomain
>> ```
>>
>> `git blame kernel/irq/irqdomain.c` shows, the message is added in
>> commit d59f661 (genirq: Allow fwnode to carry name information only).
>>
>> The commit message describes the warning.
>>
>>> Warn if an invalid node is supplied and treat it like no node. This
>>> happens e.g. with i2 devices on x86 which hand in an ACPI type node
>>> which has no interface for retrieving the name.
>>
>> How can I find out, how the ACPI/ASL has to be fixed?
> 
> It's not an ACPI/ASL issue. Sorry, if the description and error message is
> not clear. That's a kernel internal issue because we have no interface yet
> to retrieve the required information. I'll have a look later today.

I've been reported an issue that is somewhat related to this, Any
chance you could give this[1] a go? I have no way to test it...

Thanks,

	M.

[1] https://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms.git/commit/?h=irq/fixes-4.13
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