Re: 2.6.20-git8 fails compile -- net/built-in.o __ipv6_addr_type

[Chuck Lever <chuck.lever@oracle.com>]

David Miller wrote:
> From: Pete Clements <clem@clem.clem-digital.net>
> Date: Mon, 12 Feb 2007 20:10:13 -0500 (EST)
>
> > 2.6.20-git8 fails compile:
> >
> >   CHK     include/linux/compile.h
> >   UPD     include/linux/compile.h
> >   CC      init/version.o
> >   LD      init/built-in.o
> >   LD      .tmp_vmlinux1
> > net/built-in.o: In function `svc_udp_recvfrom':
> > svcsock.c:(.text+0x61be4): undefined reference to `__ipv6_addr_type'
> > make: *** [.tmp_vmlinux1] Error 1
>
> Chuck, you will need to somehow make CONFIG_SUNRPC "depend" upon IPV6
> so that if IPV6 is modular SUNRPC can only be built modular.
>
> Otherwise the symbols won't resolve correctly.
>
> Everybody hits this problem when they add ipv6 support to
> something. :-)

Interestingly, doing a build with ALLYESCONFIG, ALLMODCONFIG, and 
ALLNOCONFIG doesn't catch this type of error.

I just did a copy+paste and that brought in ipv6_addr_type.  So I'm not 
convinced it's really needed here.  David, can you take a look at the 
code in svcsock.c right around the ipv6_addr_type() call and let me know 
if we can avoid that call outright?
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