Re: [PATCH] netfilter: conntrack: add weak IPV6 dependency

[Florian Westphal]

Arnd Bergmann <arnd@xxxxxxxx> wrote:
> and that resulted in a new build failure:
> 
> net/netfilter/nf_conntrack_proto.o:(.rodata+0x788): undefined
> reference to `nf_conntrack_l4proto_icmpv6'
> net/ipv6/netfilter/nf_conntrack_reasm.o: In function `nf_ct_frag6_expire':
> nf_conntrack_reasm.c:(.text+0x2320): undefined reference to
> `ip6_expire_frag_queue'
> net/ipv6/netfilter/nf_conntrack_reasm.o: In function `nf_ct_frag6_init':
> nf_conntrack_reasm.c:(.text+0x2384): undefined reference to `ip6_frag_init'
> nf_conntrack_reasm.c:(.text+0x2394): undefined reference to `ip6_frag_init'
> nf_conntrack_reasm.c:(.text+0x2398): undefined reference to `ip6_rhash_params'
> net/ipv6/netfilter/nf_conntrack_reasm.o: In function `nf_ct_frag6_expire':
> nf_conntrack_reasm.c:(.text+0x10bc): undefined reference to
> `ip6_expire_frag_queue'
> 
> I don't think we can get CONFIG_NF_DEFRAG_IPV6=y to work with IPV6=m.

Yes, not with current implementation, but I still don't think this
is unavoidable.

In case this is urgent I'm fine with the patch that adds the dependency,
otherwise I'd like to try and disentangle nf_conntrack_reasm and ipv6.