netdev - [net-2.6.22] [TCP]: Fix linkage errors.

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Date:	Wed, 25 Apr 2007 00:17:43 +0900 (JST)
From:	YOSHIFUJI Hideaki / 吉藤英明 
	<yoshfuji@...ux-ipv6.org>
To:	davem@...emloft.net
Cc:	shemminger@...l.org, netdev@...r.kernel.org
Subject: [net-2.6.22] [TCP]: Fix linkage errors.

Recent ktime_t changes had introduced linkage errors.

| WARNING: "__divdi3" [net/ipv4/tcp_veno.ko] undefined!
| WARNING: "__divdi3" [net/ipv4/tcp_vegas.ko] undefined!
| WARNING: "__divdi3" [net/ipv4/tcp_lp.ko] undefined!
| WARNING: "__divdi3" [net/ipv4/tcp_illinois.ko] undefined!

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@...ux-ipv6.org>

---
diff --git a/net/ipv4/tcp_illinois.c b/net/ipv4/tcp_illinois.c
index 8e31659..0cec615 100644
--- a/net/ipv4/tcp_illinois.c
+++ b/net/ipv4/tcp_illinois.c
@@ -87,10 +87,12 @@ static void tcp_illinois_acked(struct sock *sk, u32 pkts_acked, ktime_t last)
 {
 	struct illinois *ca = inet_csk_ca(sk);
 	u32 rtt;
+	struct timeval tv;
 
 	ca->acked = pkts_acked;
 
-	rtt = ktime_to_ns(net_timedelta(last)) / NSEC_PER_USEC;
+	tv = ktime_to_timeval(net_timedelta(last));
+	rtt = tv.tv_sec * USEC_PER_SEC + tv.tv_usec;
 
 	/* ignore bogus values, this prevents wraparound in alpha math */
 	if (rtt > RTT_MAX)
diff --git a/net/ipv4/tcp_lp.c b/net/ipv4/tcp_lp.c
index b4e062a..0b990ea 100644
--- a/net/ipv4/tcp_lp.c
+++ b/net/ipv4/tcp_lp.c
@@ -265,8 +265,10 @@ static void tcp_lp_pkts_acked(struct sock *sk, u32 num_acked, ktime_t last)
 {
 	struct tcp_sock *tp = tcp_sk(sk);
 	struct lp *lp = inet_csk_ca(sk);
+	struct timeval tv;
 
-	tcp_lp_rtt_sample(sk,  ktime_to_ns(net_timedelta(last)) / NSEC_PER_USEC);
+	tv = ktime_to_timeval(net_timedelta(last));
+	tcp_lp_rtt_sample(sk, tv.tv_sec * USEC_PER_SEC + tv.tv_usec);
 
 	/* calc inference */
 	if (tcp_time_stamp > tp->rx_opt.rcv_tsecr)
diff --git a/net/ipv4/tcp_vegas.c b/net/ipv4/tcp_vegas.c
index 0f0ee7f..c13dc16 100644
--- a/net/ipv4/tcp_vegas.c
+++ b/net/ipv4/tcp_vegas.c
@@ -116,9 +116,11 @@ void tcp_vegas_pkts_acked(struct sock *sk, u32 cnt, ktime_t last)
 {
 	struct vegas *vegas = inet_csk_ca(sk);
 	u32 vrtt;
+	struct timeval tv;
 
 	/* Never allow zero rtt or baseRTT */
-	vrtt = (ktime_to_ns(net_timedelta(last)) / NSEC_PER_USEC) + 1;
+	tv = ktime_to_timeval(net_timedelta(last));
+	vrtt = tv.tv_sec * USEC_PER_SEC + tv.tv_usec;
 
 	/* Filter to find propagation delay: */
 	if (vrtt < vegas->baseRTT)
diff --git a/net/ipv4/tcp_veno.c b/net/ipv4/tcp_veno.c
index 0b50d06..a439c49 100644
--- a/net/ipv4/tcp_veno.c
+++ b/net/ipv4/tcp_veno.c
@@ -73,9 +73,11 @@ static void tcp_veno_pkts_acked(struct sock *sk, u32 cnt, ktime_t last)
 {
 	struct veno *veno = inet_csk_ca(sk);
 	u32 vrtt;
+	struct timeval tv;
 
 	/* Never allow zero rtt or baseRTT */
-	vrtt = (ktime_to_ns(net_timedelta(last)) / NSEC_PER_USEC) + 1;
+	tv = ktime_to_timeval(net_timedelta(last));
+	vrtt = tv.tv_sec * USEC_PER_SEC + tv.tv_usec;
 
 	/* Filter to find propagation delay: */
 	if (vrtt < veno->basertt)

-- 
YOSHIFUJI Hideaki @ USAGI Project  <yoshfuji@...ux-ipv6.org>
GPG-FP  : 9022 65EB 1ECF 3AD1 0BDF  80D8 4807 F894 E062 0EEA
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