netdev - Re: [PATCH net-next 2/2] net: deprecate eth_change

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Message-ID: <201609140519.GHFnOaaT%fengguang.wu@intel.com>
Date:   Wed, 14 Sep 2016 05:59:14 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Jarod Wilson <jarod@...hat.com>
Cc:     kbuild-all@...org, linux-kernel@...r.kernel.org,
        Jarod Wilson <jarod@...hat.com>,
        "David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org
Subject: Re: [PATCH net-next 2/2] net: deprecate eth_change_mtu, remove usage

Hi Jarod,

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

url:    https://github.com/0day-ci/linux/commits/Jarod-Wilson/net-centralize-net_device-min-max-MTU-checking/20160913-042130
config: mips-xway_defconfig (attached as .config)
compiler: mips-linux-gnu-gcc (Debian 5.4.0-6) 5.4.0 20160609
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=mips 

All error/warnings (new ones prefixed by >>):

   drivers/net/ethernet/lantiq_etop.c: In function 'ltq_etop_change_mtu':
>> drivers/net/ethernet/lantiq_etop.c:524:7: error: 'ret' undeclared (first use in this function)
     if (!ret) {
          ^
   drivers/net/ethernet/lantiq_etop.c:524:7: note: each undeclared identifier is reported only once for each function it appears in
>> drivers/net/ethernet/lantiq_etop.c:534:1: warning: control reaches end of non-void function [-Wreturn-type]
    }
    ^

vim +/ret +524 drivers/net/ethernet/lantiq_etop.c

504d4721 drivers/net/lantiq_etop.c          John Crispin 2011-05-06  518  
504d4721 drivers/net/lantiq_etop.c          John Crispin 2011-05-06  519  static int
504d4721 drivers/net/lantiq_etop.c          John Crispin 2011-05-06  520  ltq_etop_change_mtu(struct net_device *dev, int new_mtu)
504d4721 drivers/net/lantiq_etop.c          John Crispin 2011-05-06  521  {
707d312a drivers/net/ethernet/lantiq_etop.c Jarod Wilson 2016-09-12  522  	dev->mtu = new_mtu;
504d4721 drivers/net/lantiq_etop.c          John Crispin 2011-05-06  523  
504d4721 drivers/net/lantiq_etop.c          John Crispin 2011-05-06 @524  	if (!ret) {
504d4721 drivers/net/lantiq_etop.c          John Crispin 2011-05-06  525  		struct ltq_etop_priv *priv = netdev_priv(dev);
504d4721 drivers/net/lantiq_etop.c          John Crispin 2011-05-06  526  		unsigned long flags;
504d4721 drivers/net/lantiq_etop.c          John Crispin 2011-05-06  527  
504d4721 drivers/net/lantiq_etop.c          John Crispin 2011-05-06  528  		spin_lock_irqsave(&priv->lock, flags);
504d4721 drivers/net/lantiq_etop.c          John Crispin 2011-05-06  529  		ltq_etop_w32((ETOP_PLEN_UNDER << 16) | new_mtu,
504d4721 drivers/net/lantiq_etop.c          John Crispin 2011-05-06  530  			LTQ_ETOP_IGPLEN);
504d4721 drivers/net/lantiq_etop.c          John Crispin 2011-05-06  531  		spin_unlock_irqrestore(&priv->lock, flags);
504d4721 drivers/net/lantiq_etop.c          John Crispin 2011-05-06  532  	}
504d4721 drivers/net/lantiq_etop.c          John Crispin 2011-05-06  533  	return ret;
504d4721 drivers/net/lantiq_etop.c          John Crispin 2011-05-06 @534  }
504d4721 drivers/net/lantiq_etop.c          John Crispin 2011-05-06  535  
504d4721 drivers/net/lantiq_etop.c          John Crispin 2011-05-06  536  static int
504d4721 drivers/net/lantiq_etop.c          John Crispin 2011-05-06  537  ltq_etop_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)

:::::: The code at line 524 was first introduced by commit
:::::: 504d4721ee8e432af4b5f196a08af38bc4dac5fe MIPS: Lantiq: Add ethernet driver

:::::: TO: John Crispin <blogic@...nwrt.org>
:::::: CC: Ralf Baechle <ralf@...ux-mips.org>

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