fib_trie: Merge leaf into tnode
This change makes it so that leaf and tnode are the same struct. As a result there is no need for rt_trie_node anymore since everyting can be merged into tnode. On 32b systems this results in the leaf being 4 bytes larger, however I don't know if that is really an issue as this and an eariler patch that added bits & pos have increased the size from 20 to 28. If I am not mistaken slub/slab allocate on power of 2 sizes so 20 was likely being rounded up to 32 anyway. Signed-off-by: Alexander Duyck <alexander.h.duyck@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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