linux-kernel - Re: randconfig build error with next-20150812, in drivers/i2c/busses/i2c-i801.c

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Message-ID: <20150925133757.GA2857@codeblueprint.co.uk>
Date:	Fri, 25 Sep 2015 14:37:57 +0100
From:	Matt Fleming <matt@...eblueprint.co.uk>
To:	Jean Delvare <jdelvare@...e.de>
Cc:	Jim Davis <jim.epost@...il.com>,
	Stephen Rothwell <sfr@...b.auug.org.au>,
	linux-next <linux-next@...r.kernel.org>,
	linux-kernel <linux-kernel@...r.kernel.org>, jdelvare@...e.com,
	wsa@...-dreams.de, linux-i2c@...r.kernel.org,
	Matt Fleming <matt.fleming@...el.com>,
	Guenter Roeck <linux@...ck-us.net>
Subject: Re: randconfig build error with next-20150812, in
 drivers/i2c/busses/i2c-i801.c

On Fri, 25 Sep, at 09:36:10AM, Jean Delvare wrote:
> On Wed, 12 Aug 2015 08:42:18 -0700, Jim Davis wrote:
> > Building with the attached random configuration file,
> > 
> > drivers/built-in.o: In function `dmi_check_onboard_devices':
> > i2c-i801.c:(.text+0x126b36): undefined reference to `i2c_new_device'
> > drivers/built-in.o: In function `i801_remove':
> > i2c-i801.c:(.text+0x126b86): undefined reference to `i2c_del_adapter'
> > drivers/built-in.o: In function `i801_probe':
> > i2c-i801.c:(.text+0x127d08): undefined reference to `i2c_add_adapter'
> > i2c-i801.c:(.text+0x127d6e): undefined reference to `i2c_new_device'
> 
> Sorry for the late reply. The error is caused by the following
> combination of options:
> 
> CONFIG_I2C=m
> CONFIG_I2C_I801=y
> 
> I can reproduce it even with mainline now. This is caused by
> CONFIG_ITCO_WDT=y, which selects CONFIG_I2C_I801=y without selecting
> its dependencies (CONFIG_I2C.)
> 
> Thanks for reporting, I'll post a fix shortly.

Sorry that you got caught up in this build error Jean.

Guenter (Cc'd) posted a fix here,

  https://lkml.kernel.org/r/1441978088-27288-1-git-send-email-linux@roeck-us.net

-- 
Matt Fleming, Intel Open Source Technology Center
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