Hi Florian,

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

url:    https://github.com/0day-ci/linux/commits/Florian-Fainelli/net-dsa-Receive-path-simplifications/20170408-074503
config: ia64-allmodconfig (attached as .config)
compiler: ia64-linux-gcc (GCC) 6.2.0
reproduce:
        wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=ia64 

All errors (new ones prefixed by >>):

>> net//dsa/tag_mtk.c:117:9: error: initialization from incompatible pointer type [-Werror=incompatible-pointer-types]
     .rcv = mtk_tag_rcv,
            ^~~~~~~~~~~
   net//dsa/tag_mtk.c:117:9: note: (near initialization for 'mtk_netdev_ops.rcv')
   cc1: some warnings being treated as errors

vim +117 net//dsa/tag_mtk.c

5cd8985a Sean Wang 2017-04-07  101  
5cd8985a Sean Wang 2017-04-07  102  	skb->dev->stats.rx_packets++;
5cd8985a Sean Wang 2017-04-07  103  	skb->dev->stats.rx_bytes += skb->len;
5cd8985a Sean Wang 2017-04-07  104  
5cd8985a Sean Wang 2017-04-07  105  	netif_receive_skb(skb);
5cd8985a Sean Wang 2017-04-07  106  
5cd8985a Sean Wang 2017-04-07  107  	return 0;
5cd8985a Sean Wang 2017-04-07  108  
5cd8985a Sean Wang 2017-04-07  109  out_drop:
5cd8985a Sean Wang 2017-04-07  110  	kfree_skb(skb);
5cd8985a Sean Wang 2017-04-07  111  out:
5cd8985a Sean Wang 2017-04-07  112  	return 0;
5cd8985a Sean Wang 2017-04-07  113  }
5cd8985a Sean Wang 2017-04-07  114  
5cd8985a Sean Wang 2017-04-07  115  const struct dsa_device_ops mtk_netdev_ops = {
5cd8985a Sean Wang 2017-04-07  116  	.xmit	= mtk_tag_xmit,
5cd8985a Sean Wang 2017-04-07 @117  	.rcv	= mtk_tag_rcv,
5cd8985a Sean Wang 2017-04-07  118  };

:::::: The code at line 117 was first introduced by commit
:::::: 5cd8985a19090f2b0ce8700ae3ec19e06a4fc5e9 net-next: dsa: add Mediatek tag RX/TX handler

:::::: TO: Sean Wang <sean.wang@mediatek.com>
:::::: CC: David S. Miller <davem@davemloft.net>

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