Refactor the fastreuse update code in inet_csk_get_port into a small
helper function that can be called from other places.
Acked-by: NMatthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: NTim Froidcoeur <tim.froidcoeur@tessares.net>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>