[PATCH] TCP westwood bw_sample set never used

[Stephen Hemminger <shemminger@xxxxxxxx>]

Found this while looking in detail at TCP.  The westwood.bw_sample element
it tcp_opt is set but not used by the existing code in 2.6.4

diff -Nru a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
--- a/net/ipv4/tcp_input.c      Fri Mar 12 09:11:42 2004
+++ b/net/ipv4/tcp_input.c      Fri Mar 12 09:11:42 2004
@@ -2065,7 +2065,6 @@
 {
         struct tcp_opt *tp = tcp_sk(sk);
 
-        tp->westwood.bw_sample = 0;
         tp->westwood.bw_ns_est = 0;
         tp->westwood.bw_est = 0;
         tp->westwood.accounted = 0;
@@ -2088,14 +2087,13 @@
 static void westwood_filter(struct sock *sk, __u32 delta)
 {
        struct tcp_opt *tp = tcp_sk(sk);
-       __u32 sample = tp->westwood.bk / delta;
 
        tp->westwood.bw_ns_est =
-               westwood_do_filter(tp->westwood.bw_ns_est, sample);
+               westwood_do_filter(tp->westwood.bw_ns_est, 
+                                  tp->westwood.bk / delta);
        tp->westwood.bw_est =
                westwood_do_filter(tp->westwood.bw_est,
                                   tp->westwood.bw_ns_est);
-       tp->westwood.bw_sample = sample;
 }
 
 /* @westwood_update_rttmin