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Date:   Fri, 9 Oct 2020 09:59:37 +0800
From:   Xin Long <lucien.xin@...il.com>
To:     kernel test robot <lkp@...el.com>
Cc:     network dev <netdev@...r.kernel.org>, linux-sctp@...r.kernel.org,
        kbuild-all@...ts.01.org,
        Marcelo Ricardo Leitner <marcelo.leitner@...il.com>,
        Neil Horman <nhorman@...driver.com>,
        Michael Tuexen <tuexen@...muenster.de>,
        davem <davem@...emloft.net>
Subject: Re: [PATCHv2 net-next 06/17] sctp: create udp6 sock and set its encap_rcv

On Fri, Oct 9, 2020 at 5:20 AM kernel test robot <lkp@...el.com> wrote:
>
> Hi Xin,
>
> 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/Xin-Long/sctp-Implement-RFC6951-UDP-Encapsulation-of-SCTP/20201008-175211
> base:   https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git 9faebeb2d80065926dfbc09cb73b1bb7779a89cd
> config: arm-keystone_defconfig (attached as .config)
> compiler: arm-linux-gnueabi-gcc (GCC) 9.3.0
> reproduce (this is a W=1 build):
>         wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
>         chmod +x ~/bin/make.cross
>         # https://github.com/0day-ci/linux/commit/60851a8f9ae9fd55f1199581dd78f6030bed63c7
>         git remote add linux-review https://github.com/0day-ci/linux
>         git fetch --no-tags linux-review Xin-Long/sctp-Implement-RFC6951-UDP-Encapsulation-of-SCTP/20201008-175211
>         git checkout 60851a8f9ae9fd55f1199581dd78f6030bed63c7
>         # save the attached .config to linux build tree
>         COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm
>
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <lkp@...el.com>
>
> All errors (new ones prefixed by >>):
>
>    arm-linux-gnueabi-ld: net/sctp/protocol.o: in function `sctp_udp_sock_start':
>    protocol.c:(.text+0x108c): undefined reference to `udp_sock_create4'
>    arm-linux-gnueabi-ld: protocol.c:(.text+0x10b8): undefined reference to `setup_udp_tunnel_sock'
> >> arm-linux-gnueabi-ld: protocol.c:(.text+0x111c): undefined reference to `udp_sock_create6'
>    arm-linux-gnueabi-ld: protocol.c:(.text+0x113c): undefined reference to `setup_udp_tunnel_sock'
> >> arm-linux-gnueabi-ld: protocol.c:(.text+0x1180): undefined reference to `udp_tunnel_sock_release'
>    arm-linux-gnueabi-ld: net/sctp/protocol.o: in function `sctp_udp_sock_stop':
>    protocol.c:(.text+0x11b4): undefined reference to `udp_tunnel_sock_release'
>    arm-linux-gnueabi-ld: protocol.c:(.text+0x11d0): undefined reference to `udp_tunnel_sock_release'
>
diff --git a/net/sctp/Kconfig b/net/sctp/Kconfig
index 39d7fa9569f8..5da599ff84a9 100644
--- a/net/sctp/Kconfig
+++ b/net/sctp/Kconfig
@@ -11,6 +11,7 @@ menuconfig IP_SCTP
        select CRYPTO_HMAC
        select CRYPTO_SHA1
        select LIBCRC32C
+       select NET_UDP_TUNNEL
        help
          Stream Control Transmission Protocol

> ---
> 0-DAY CI Kernel Test Service, Intel Corporation
> https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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