linux-kernel - Re: [PATCH 2/2] i2c: add ACPI support for I2C mux ports

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Date:	Sat, 10 Oct 2015 09:03:27 +0800
From:	kbuild test robot <lkp@...el.com>
To:	Dustin Byford <dustin@...ulusnetworks.com>
Cc:	kbuild-all@...org, Wolfram Sang <wsa@...-dreams.de>,
	Mika Westerberg <mika.westerberg@...ux.intel.com>,
	linux-i2c@...r.kernel.org, linux-kernel@...r.kernel.org,
	rjw@...ysocki.net
Subject: Re: [PATCH 2/2] i2c: add ACPI support for I2C mux ports

Hi Dustin,

[auto build test ERROR on wsa/i2c/for-next -- if it's inappropriate base, please ignore]

config: xtensa-allyesconfig (attached as .config)
reproduce:
        wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=xtensa 

All errors (new ones prefixed by >>):

   drivers/i2c/i2c-mux.c: In function 'i2c_add_mux_adapter':
>> drivers/i2c/i2c-mux.c:181:3: error: implicit declaration of function 'acpi_preset_companion' [-Werror=implicit-function-declaration]
      acpi_preset_companion(&priv->adap.dev, ACPI_COMPANION(mux_dev),
      ^
   cc1: some warnings being treated as errors

vim +/acpi_preset_companion +181 drivers/i2c/i2c-mux.c

   175		}
   176	
   177		/*
   178		 * Associate the mux channel with an ACPI node.
   179		 */
   180		if (has_acpi_companion(mux_dev))
 > 181			acpi_preset_companion(&priv->adap.dev, ACPI_COMPANION(mux_dev),
   182					      chan_id);
   183	
   184		if (force_nr) {

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0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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