netdev - Re: [PATCH bpf-next 02/15] xsk: add user memory registration support sockopt

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Message-ID: <201804242222.EKrUi5ux%fengguang.wu@intel.com>
Date:   Tue, 24 Apr 2018 22:27:57 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Björn Töpel <bjorn.topel@...il.com>
Cc:     kbuild-all@...org, bjorn.topel@...il.com,
        magnus.karlsson@...el.com, alexander.h.duyck@...el.com,
        alexander.duyck@...il.com, john.fastabend@...il.com, ast@...com,
        brouer@...hat.com, willemdebruijn.kernel@...il.com,
        daniel@...earbox.net, mst@...hat.com, netdev@...r.kernel.org,
        Björn Töpel <bjorn.topel@...el.com>,
        michael.lundkvist@...csson.com, jesse.brandeburg@...el.com,
        anjali.singhai@...el.com, qi.z.zhang@...el.com
Subject: Re: [PATCH bpf-next 02/15] xsk: add user memory registration support
 sockopt

Hi Björn,

I love your patch! Yet something to improve:

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

url:    https://github.com/0day-ci/linux/commits/Bj-rn-T-pel/Introducing-AF_XDP-support/20180424-085240
base:   https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master
config: m68k-allyesconfig (attached as .config)
compiler: m68k-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
reproduce:
        wget https://raw.githubusercontent.com/intel/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=m68k 

All errors (new ones prefixed by >>):

   net/xdp/xdp_umem.o: In function `xdp_umem_reg':
>> xdp_umem.c:(.text+0x200): undefined reference to `__udivdi3'

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

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