On 2018/07/24 9:19, kbuild test robot wrote:

Hi Toshiaki,

Thank you for the patch! Yet something to improve:

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

url:    https://github.com/0day-ci/linux/commits/Toshiaki-Makita/veth-Driver-XDP/20180724-065517
base:   https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master
config: i386-randconfig-x001-201829 (attached as .config)
compiler: gcc-7 (Debian 7.3.0-16) 7.3.0
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

All errors (new ones prefixed by >>):

   In file included from include/linux/kernel.h:10:0,
                    from include/linux/list.h:9,
                    from include/linux/timer.h:5,
                    from include/linux/netdevice.h:28,
                    from drivers//net/veth.c:11:
   drivers//net/veth.c: In function 'veth_xdp_xmit':

quoted

quoted

drivers//net/veth.c:300:16: error: implicit declaration of function 'xdp_ok_fwd_dev' [-Werror=implicit-function-declaration]

      if (unlikely(xdp_ok_fwd_dev(rcv, frame->len) ||

This is because this series depends on commit d8d7218ad842 ("xdp:
XDP_REDIRECT should check IFF_UP and MTU") which is currently in DaveM's
net-next tree, as I noted in the cover letter.

-- 
Toshiaki Makita