Hi Simon,

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

url:    https://github.com/0day-ci/linux/commits/Simon-Horman/nfp-add-flower-app-with-representors/20170620-233831
config: arm-allmodconfig (attached as .config)
compiler: arm-linux-gnueabi-gcc (Debian 6.1.1-9) 6.1.1 20160705
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=arm 

All errors (new ones prefixed by >>):

   drivers/net//ethernet/netronome/nfp/nfp_net_repr.c: In function 'nfp_repr_phy_port_get_stats64':

quoted

drivers/net//ethernet/netronome/nfp/nfp_net_repr.c:88:22: error: implicit declaration of function 'readq' [-Werror=implicit-function-declaration]

     stats->tx_packets = readq(mem + NFP_MAC_STATS_RX_FRAMES_RECEIVED_OK);
                         ^~~~~
   cc1: some warnings being treated as errors

vim +/readq +88 drivers/net//ethernet/netronome/nfp/nfp_net_repr.c

    72		stats->rx_packets++;
    73		stats->rx_bytes += len;
    74		u64_stats_update_end(&stats->syncp);
    75	}
    76	
    77	void
    78	nfp_repr_phy_port_get_stats64(const struct nfp_app *app, u8 phy_port,
    79				      struct rtnl_link_stats64 *stats)
    80	{
    81		u8 __iomem *mem;
    82	
    83		mem = app->pf->mac_stats_mem + phy_port * NFP_MAC_STATS_SIZE;
    84	
    85		/* TX and RX stats are flipped as we are returning the stats as seen
    86		 * at the switch port corresponding to the phys port.
    87		 */
  > 88		stats->tx_packets = readq(mem + NFP_MAC_STATS_RX_FRAMES_RECEIVED_OK);
    89		stats->tx_bytes = readq(mem + NFP_MAC_STATS_RX_IN_OCTETS);
    90		stats->tx_dropped = readq(mem + NFP_MAC_STATS_RX_IN_ERRORS);
    91	
    92		stats->rx_packets = readq(mem + NFP_MAC_STATS_TX_FRAMES_TRANSMITTED_OK);
    93		stats->rx_bytes = readq(mem + NFP_MAC_STATS_TX_OUT_OCTETS);
    94		stats->rx_dropped = readq(mem + NFP_MAC_STATS_TX_OUT_ERRORS);
    95	}
    96	

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