Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf

Pablo Neira Ayuso says:

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Netfilter fixes for net

The following patchset contains Netfilter fixes for net:

1) nf_conntrack_tuple_taken() needs to recheck zone for
   NAT clash resolution, from Florian Westphal.

2) Restore support for stateful expressions when set definition
   specifies no stateful expressions.
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Signed-off-by: David S. Miller <davem@davemloft.net>