linux-kernel - Re: Hitting WARN_ON_ONCE in i2c-designware-common.c

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Message-ID: <36736a3d-9ba1-43d7-ac52-d0f2f8a36bec@kernel.org>
Date: Tue, 15 Apr 2025 14:30:10 +0200
From: Jesper Dangaard Brouer <hawk@...nel.org>
To: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc: Luis Oliveira <lolivei@...opsys.com>,
 Jarkko Nikula <jarkko.nikula@...ux.intel.com>,
 Mika Westerberg <mika.westerberg@...ux.intel.com>,
 Jan Dabros <jsd@...ihalf.com>, Andi Shyti <andi.shyti@...nel.org>,
 linux-i2c@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>,
 kernel-team <kernel-team@...udflare.com>
Subject: Re: Hitting WARN_ON_ONCE in i2c-designware-common.c



On 15/04/2025 14.19, Andy Shevchenko wrote:
> On Tue, Apr 15, 2025 at 03:17:37PM +0300, Andy Shevchenko wrote:
>> On Tue, Apr 15, 2025 at 02:03:26PM +0200, Jesper Dangaard Brouer wrote:
>>> Hi Maintainers,
>>>
>>> I'm hitting a WARN_ON_ONCE in drivers/i2c/busses/i2c-designware-common.c
>>> when booting the kernel on our Gen12 hardware.
>>>
>>> I'm using devel kernel net-next at commit 1a9239bb425 (merge tag
>>> 'net-next-6.15').
>>>
>>> I assume you want this report.
>>>
>>> Maybe it is not a critical error(?)
>>> ... looking the comment in the function:
>>
>> Have you forgotten to compile in the drivers/acpi/acpi_apd.c?
> 

I have double checked that drivers/acpi/acpi_apd.o is compiled.

> Also that driver has the missing error check in acpi_apd_setup() for
> clk_register_clkdev().
> 

Are you saying I'm missing a .config option?

--Jesper