netdev - Re: xt_TPROXY.c:undefined reference to `udp6_lib

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Message-ID: <CA+a=Yy67-y6P9RFZzx21C6LOxWrX8kpMgE9umERseZWCKXJ+RA@mail.gmail.com>
Date:	Fri, 28 Mar 2014 17:30:12 +0800
From:	Peng Tao <bergwolf@...il.com>
To:	kbuild test robot <fengguang.wu@...el.com>
Cc:	Andreas Dilger <andreas.dilger@...el.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	"kbuild-all@...org" <kbuild-all@...org>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: Re: xt_TPROXY.c:undefined reference to `udp6_lib_lookup'

On Fri, Mar 28, 2014 at 4:51 PM, kbuild test robot
<fengguang.wu@...el.com> wrote:
> tree:   git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> head:   f217c44ebd41ce7369d2df07622b2839479183b0
> commit: 2c185ffa270a95e3699c223a0ee67f560ec0db8c staging/lustre: don't compile procfs code when CONFIG_PROC_FS is off
> date:   4 months ago
> config: i386-randconfig-c1-03281459 (attached as .config)
>
> All error/warnings:
>
>    net/built-in.o: In function `tproxy_tg6_v1':
>>> xt_TPROXY.c:(.text+0x44b23): undefined reference to `udp6_lib_lookup'
>>> xt_TPROXY.c:(.text+0x44f6f): undefined reference to `udp6_lib_lookup'
>>> xt_TPROXY.c:(.text+0x4505e): undefined reference to `udp6_lib_lookup'
>    net/built-in.o: In function `tproxy_tg_init':
>    xt_TPROXY.c:(.init.text+0x1748): undefined reference to `nf_defrag_ipv6_enable'
>
I don't see how this relates to a Lustre commit.
.config looks reasonable to me. It has CONFIG_IPV6=m, which should
have built udp6_lib_lookup (net/ipv6/udp.c) yet ld failed to link it?

CCing netdev to see if there is someone seeing it otherwise.

Thanks,
Tao
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