Hi Mike,

[auto build test WARNING on: balbi-usb/next]
[also build test WARNING on: v4.4-rc3 next-20151127]

url:    
https://github.com/0day-ci/linux/commits/Mike-Looijmans/usb-gadget-ether-Allow-changing-the-MTU/20151130-162847
base:   https://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb.git next
config: i386-randconfig-s1-201548 (attached as .config)
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

All warnings (new ones prefixed by >>):

   drivers/usb/gadget/function/u_ether.c: In function 'ueth_change_mtu':
>> drivers/usb/gadget/function/u_ether.c:146:18: warning: unused variable 'dev' 
>> [-Wunused-variable]
     struct eth_dev *dev = netdev_priv(net);
                     ^

vim +/dev +146 drivers/usb/gadget/function/u_ether.c

2b3d942c drivers/usb/gadget/u_ether.c          David Brownell    2008-06-19  
130  #else
2b3d942c drivers/usb/gadget/u_ether.c          David Brownell    2008-06-19  
131  #define VDBG(dev, fmt, args...) \
2b3d942c drivers/usb/gadget/u_ether.c          David Brownell    2008-06-19  
132        do { } while (0)
2b3d942c drivers/usb/gadget/u_ether.c          David Brownell    2008-06-19  
133  #endif /* DEBUG */
2b3d942c drivers/usb/gadget/u_ether.c          David Brownell    2008-06-19  
134  
2b3d942c drivers/usb/gadget/u_ether.c          David Brownell    2008-06-19  
135  #define ERROR(dev, fmt, args...) \
2b3d942c drivers/usb/gadget/u_ether.c          David Brownell    2008-06-19  
136        xprintk(dev , KERN_ERR , fmt , ## args)
2b3d942c drivers/usb/gadget/u_ether.c          David Brownell    2008-06-19  
137  #define INFO(dev, fmt, args...) \
2b3d942c drivers/usb/gadget/u_ether.c          David Brownell    2008-06-19  
138        xprintk(dev , KERN_INFO , fmt , ## args)
2b3d942c drivers/usb/gadget/u_ether.c          David Brownell    2008-06-19  
139  
2b3d942c drivers/usb/gadget/u_ether.c          David Brownell    2008-06-19  
140  
/*-------------------------------------------------------------------------*/
2b3d942c drivers/usb/gadget/u_ether.c          David Brownell    2008-06-19  
141  
2b3d942c drivers/usb/gadget/u_ether.c          David Brownell    2008-06-19  
142  /* NETWORK DRIVER HOOKUP (to the layer above this driver) */
2b3d942c drivers/usb/gadget/u_ether.c          David Brownell    2008-06-19  
143  
ccad637b drivers/usb/gadget/u_ether.c          Stephen Hemminger 2008-11-19  
144  static int ueth_change_mtu(struct net_device *net, int new_mtu)
2b3d942c drivers/usb/gadget/u_ether.c          David Brownell    2008-06-19  
145  {
2b3d942c drivers/usb/gadget/u_ether.c          David Brownell    2008-06-19 
@146        struct eth_dev  *dev = netdev_priv(net);
1616c4ef drivers/usb/gadget/function/u_ether.c Mike Looijmans    2015-11-30  
147  
1616c4ef drivers/usb/gadget/function/u_ether.c Mike Looijmans    2015-11-30  
148        if (new_mtu <= ETH_HLEN || new_mtu > GETHER_MAX_ETH_FRAME_LEN)
1616c4ef drivers/usb/gadget/function/u_ether.c Mike Looijmans    2015-11-30  
149                return -ERANGE;
2b3d942c drivers/usb/gadget/u_ether.c          David Brownell    2008-06-19  
150        net->mtu = new_mtu;
2b3d942c drivers/usb/gadget/u_ether.c          David Brownell    2008-06-19  
151  
1616c4ef drivers/usb/gadget/function/u_ether.c Mike Looijmans    2015-11-30  
152        return 0;
2b3d942c drivers/usb/gadget/u_ether.c          David Brownell    2008-06-19  
153  }
2b3d942c drivers/usb/gadget/u_ether.c          David Brownell    2008-06-19  
154  

:::::: The code at line 146 was first introduced by commit
:::::: 2b3d942c4878084a37991a65e66512c02b8fa2ad usb ethernet gadget: split out 
network core

:::::: TO: David Brownell <dbrown...@users.sourceforge.net>
:::::: CC: Greg Kroah-Hartman <gre...@suse.de>

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

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