[TCP] FRTO: frto_counter modulo-op converted to two assignments

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 7213740..9dc5754 100644 (file)
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -2551,11 +2551,11 @@ static void tcp_process_frto(struct sock *sk, u32 prior_snd_una, int flag)
 
        if (tp->frto_counter == 1) {
                tp->snd_cwnd = tcp_packets_in_flight(tp) + 2;
+               tp->frto_counter = 2;
        } else /* frto_counter == 2 */ {
                tcp_conservative_spur_to_response(tp);
+               tp->frto_counter = 0;
        }
-
-       tp->frto_counter = (tp->frto_counter + 1) % 3;
 }
 
 /* This routine deals with incoming acks, but not outgoing ones. */