netdev - Re: [PATCHv2 ipsec-next 06/10] ip6_vti: support IP6IP6 tunnel processing with .cb

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Message-ID: <CADvbK_fOR_4uviyiRKT6ujRt=JwexQ9S0PCk=x08RWwDToQ=zg@mail.gmail.com>
Date:   Mon, 6 Jul 2020 00:57:07 +0800
From:   Xin Long <lucien.xin@...il.com>
To:     kernel test robot <lkp@...el.com>
Cc:     network dev <netdev@...r.kernel.org>, kbuild-all@...ts.01.org,
        Jakub Kicinski <jakub.kicinski@...ronome.com>,
        Steffen Klassert <steffen.klassert@...unet.com>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        Sabrina Dubroca <sd@...asysnail.net>
Subject: Re: [PATCHv2 ipsec-next 06/10] ip6_vti: support IP6IP6 tunnel
 processing with .cb_handler

On Fri, Jul 3, 2020 at 7:33 AM kernel test robot <lkp@...el.com> wrote:
>
> Hi Xin,
>
> Thank you for the patch! Yet something to improve:
>
> [auto build test ERROR on ipsec-next/master]
>
> url:    https://github.com/0day-ci/linux/commits/Xin-Long/xfrm-support-ipip-and-ipv6-tunnels-in-vti-and-xfrmi/20200630-154042
> base:   https://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next.git master
> config: x86_64-lkp (attached as .config)
> compiler: gcc-9 (Debian 9.3.0-14) 9.3.0
> reproduce (this is a W=1 build):
>         # save the attached .config to linux build tree
>         make W=1 ARCH=x86_64
>
> 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 >>, old ones prefixed by <<):
>
> >> ERROR: modpost: "xfrm6_tunnel_spi_lookup" [net/ipv6/ip6_vti.ko] undefined!
That's right, I will add "#ifdef CONFIG_INET6_XFRM_TUNNEL" to fix this.
Actually, for ipv4 one, we also need "#ifdef CONFIG_INET_XFRM_TUNNEL".
It is because in vti(6) and xfrmi this feature is also for  IPComp(6),
 the same as xfrm(6)_tunnel in xfrm route.

Thanks for the report.

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