Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6

* 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: (41 commits)
  [RTNETLINK]: Fix warning for !CONFIG_KMOD
  [IPV4] ip_options.c: kmalloc + memset conversion to kzalloc
  [DECNET]: kmalloc + memset conversion to kzalloc
  [NET]: ethtool_perm_addr only has one implementation
  [NET]: ethtool ops are the only way
  [PPPOE]: Improve hashing function in hash_item().
  [XFRM]: State selection update to use inner addresses.
  [IPSEC]: Ensure that state inner family is set
  [TCP]: Bidir flow must not disregard SACK blocks for lost marking
  [TCP]: Fix ratehalving with bidirectional flows
  [PPPOL2TP]: Add CONFIG_INET Kconfig dependency.
  [NET]: Page offsets and lengths need to be __u32.
  [AF_UNIX]: Make code static.
  [NETFILTER]: Make nf_ct_ipv6_skip_exthdr() static.
  [PKTGEN]: make get_ipsec_sa() static and non-inline
  [PPPoE]: move lock_sock() in pppoe_sendmsg() to the right location
  [PPPoX/E]: return ENOTTY on unknown ioctl requests
  [IPV6]: ipv6_addr_type() doesn't know about RFC4193 addresses.
  [NET]: Fix prio_tune() handling of root qdisc.
  [NET]: Fix sch_api to properly set sch->parent on the root.
  ...

1 files changed, 3 insertions, 5 deletions

diff --git a/net/ipv4/tcp_illinois.c b/net/ipv4/tcp_illinois.c
index cc5de6f69d46..64f1cbaf96e8 100644
--- a/net/ipv4/tcp_illinois.c
+++ b/net/ipv4/tcp_illinois.c
@@ -83,18 +83,16 @@ static void tcp_illinois_init(struct sock *sk)
 }
 
 /* Measure RTT for each ack. */
-static void tcp_illinois_acked(struct sock *sk, u32 pkts_acked, ktime_t last)
+static void tcp_illinois_acked(struct sock *sk, u32 pkts_acked, s32 rtt)
 {
 	struct illinois *ca = inet_csk_ca(sk);
-	u32 rtt;
 
 	ca->acked = pkts_acked;
 
-	if (ktime_equal(last, net_invalid_timestamp()))
+	/* dup ack, no rtt sample */
+	if (rtt < 0)
 		return;
 
-	rtt = ktime_to_us(net_timedelta(last));
-
 	/* ignore bogus values, this prevents wraparound in alpha math */
 	if (rtt > RTT_MAX)
 		rtt = RTT_MAX;