ipv6: tcp: fix flowlabels reflection for RST packets
In
323a53c41292 ("ipv6: tcp: enable flowlabel reflection in some RST packets")
and
50a8accf1062 ("ipv6: tcp: send consistent flowlabel in TIME_WAIT state")
we took care of IPv6 flowlabel reflections for two cases.
This patch takes care of the remaining case, when the RST packet
is sent on behalf of a 'full' socket.
In Marek use case, this was a socket in TCP_CLOSE state.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Marek Majkowski <marek@cloudflare.com>
Tested-by: Marek Majkowski <marek@cloudflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>