netdev - Re: [PATCH net-next] net: dsa: mv88e6xxx: scratch registers and external MDIO pins

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Message-ID: <201802211713.Lfr6EfYs%fengguang.wu@intel.com>
Date:   Wed, 21 Feb 2018 17:40:29 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Andrew Lunn <andrew@...n.ch>
Cc:     kbuild-all@...org, David Miller <davem@...emloft.net>,
        netdev <netdev@...r.kernel.org>, rmk@...linux.org.uk,
        Vivien Didelot <vivien.didelot@...oirfairelinux.com>,
        Andrew Lunn <andrew@...n.ch>
Subject: Re: [PATCH net-next] net: dsa: mv88e6xxx: scratch registers and
 external MDIO pins

Hi Andrew,

I love your patch! Yet something to improve:

[auto build test ERROR on net-next/master]

url:    https://github.com/0day-ci/linux/commits/Andrew-Lunn/net-dsa-mv88e6xxx-scratch-registers-and-external-MDIO-pins/20180221-150325
config: i386-randconfig-i0-201807 (attached as .config)
compiler: gcc-7 (Debian 7.3.0-1) 7.3.0
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

All errors (new ones prefixed by >>):

   drivers/net/dsa/mv88e6xxx/serdes.o: In function `mv88e6xxx_g2_scratch_gpio_set_ext_smi':
>> drivers/net/dsa/mv88e6xxx/global2.h:478: multiple definition of `mv88e6xxx_g2_scratch_gpio_set_ext_smi'
   drivers/net/dsa/mv88e6xxx/chip.o:drivers/net/dsa/mv88e6xxx/global2.h:478: first defined here

vim +478 drivers/net/dsa/mv88e6xxx/global2.h

   475	
   476	int mv88e6xxx_g2_scratch_gpio_set_ext_smi(struct mv88e6xxx_chip *chip,
   477						  bool external)
 > 478	{
   479		return -EOPNOTSUPP;
   480	}
   481	

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