tcp: do not clear urg_data in tcp_create_openreq_child
All listeners have this field cleared already, since tcp_disconnect() clears it and newly created sockets have also a zero value here. So a clone will inherit a zero value here. Signed-off-by: NEric Dumazet <edumazet@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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