From: Stephen Hemminger Please consider this change for 2.6.13-stable Since BIC is the default congestion control algorithm, this fix is quite important. Missing parenthesis in causes BIC to be slow in increasing congestion window. Spotted by Injong Rhee. Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller Signed-off-by: Chris Wright Signed-off-by: Greg Kroah-Hartman --- net/ipv4/tcp_bic.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- linux-2.6.13.y.orig/net/ipv4/tcp_bic.c +++ linux-2.6.13.y/net/ipv4/tcp_bic.c @@ -136,7 +136,7 @@ static inline void bictcp_update(struct else if (cwnd < ca->last_max_cwnd + max_increment*(BICTCP_B-1)) /* slow start */ ca->cnt = (cwnd * (BICTCP_B-1)) - / cwnd-ca->last_max_cwnd; + / (cwnd - ca->last_max_cwnd); else /* linear increase */ ca->cnt = cwnd / max_increment; --