(Sorry for repost, but I've got no reply.)

Because of rounding, in certain conditions, i.e. when in congestion
avoidance state rho is smaller than 1/128 of the current cwnd, TCP Hybla
congestion control starves and the cwnd is kept constant forever.

This patch forces an increment by one segment after #snd_cwnd calls
without increments(newreno behavior).

Please apply.

Signed-off-by: Daniele Lacamera <root@danielinux.net>