This refactoring is needed to allow more than just mpls gso
support to be built into the mpls moddule.
Reviewed-by: NSimon Horman <horms@verge.net.au>
Signed-off-by: N"Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>