netdev - Re: [PATCH v2 net-next 1/2] tcp: add TCP_ZEROCOPY

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Message-ID: <201804271455.cJQuTeDc%fengguang.wu@intel.com>
Date:   Fri, 27 Apr 2018 16:44:25 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Eric Dumazet <edumazet@...gle.com>
Cc:     kbuild-all@...org, "David S . Miller" <davem@...emloft.net>,
        netdev <netdev@...r.kernel.org>,
        Andy Lutomirski <luto@...nel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        linux-mm <linux-mm@...ck.org>,
        Eric Dumazet <edumazet@...gle.com>,
        Eric Dumazet <eric.dumazet@...il.com>,
        Soheil Hassas Yeganeh <soheil@...gle.com>
Subject: Re: [PATCH v2 net-next 1/2] tcp: add TCP_ZEROCOPY_RECEIVE support
 for zerocopy receive

Hi Eric,

Thank you for the patch! Yet something to improve:

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

url:    https://github.com/0day-ci/linux/commits/Eric-Dumazet/tcp-add-TCP_ZEROCOPY_RECEIVE-support-for-zerocopy-receive/20180427-122234
config: sh-rsk7269_defconfig (attached as .config)
compiler: sh4-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=sh 

All errors (new ones prefixed by >>):

   net/ipv4/tcp.o: In function `tcp_setsockopt':
>> tcp.c:(.text+0x3f80): undefined reference to `zap_page_range'

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

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