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

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Message-ID: <Z_5Ov9j-tF8rABDZ@smile.fi.intel.com>
Date: Tue, 15 Apr 2025 15:19:11 +0300
From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To: Jesper Dangaard Brouer <hawk@...nel.org>
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 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?

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

-- 
With Best Regards,
Andy Shevchenko