Factor out the code that extracts the ports from skb_flow_dissect and
add a new function skb_flow_get_ports which can be re-used.
Suggested-by: NVeaceslav Falico <vfalico@redhat.com>
Signed-off-by: NNikolay Aleksandrov <nikolay@redhat.com>
Acked-by: NEric Dumazet <edumazet@google.com>
Reviewed-by: NVeaceslav Falico <vfalico@redhat.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>