On Tue, Jan 31, 2006 at 05:34:16PM -0800, David S. Miller wrote:
> 
> Actually, we can't kill off that arg so simply.
> TCP ipv4 sends in a non-NULL dst to it's tcp_v4_send_synack()
> via tcp_v4_conn_request() when timewait recycling is enabled.

Oops I only grepped for rtx_syn_ack as opposed to the functions
themselves.  I suppose we do want to keep this optimisation.

In that case, every rtx_syn_ack function needs to do a dst_release
on the supplied dst if it's not NULL.  So we need Eric's fix plus
the same fix applied to dccp6.

Cheers,
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