diff options
| author | Olof Johansson <olof@lixom.net> | 2012-11-05 09:50:33 -0800 |
|---|---|---|
| committer | Olof Johansson <olof@lixom.net> | 2012-11-05 09:50:33 -0800 |
| commit | c2d8c259bfce056437e8dbc4b048944050f9b567 (patch) | |
| tree | 726e49653f7014bea034c59624ea23c21d6df13f /net/ipv4/tcp_illinois.c | |
| parent | e4de6c961cc8b688443c7989ae3e38d0518334a5 (diff) | |
| parent | e5c5f2adeb370559f4b221d57214db85858b786a (diff) | |
Merge branch 'devel/debug_ll_init' into next/multiplatform
* devel/debug_ll_init:
ARM: implement debug_ll_io_init()
+ sync to Linux 3.7-rc4
Diffstat (limited to 'net/ipv4/tcp_illinois.c')
| -rw-r--r-- | net/ipv4/tcp_illinois.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/net/ipv4/tcp_illinois.c b/net/ipv4/tcp_illinois.c index 813b43a76fec..834857f3c871 100644 --- a/net/ipv4/tcp_illinois.c +++ b/net/ipv4/tcp_illinois.c @@ -313,11 +313,13 @@ static void tcp_illinois_info(struct sock *sk, u32 ext, .tcpv_rttcnt = ca->cnt_rtt, .tcpv_minrtt = ca->base_rtt, }; - u64 t = ca->sum_rtt; - do_div(t, ca->cnt_rtt); - info.tcpv_rtt = t; + if (info.tcpv_rttcnt > 0) { + u64 t = ca->sum_rtt; + do_div(t, info.tcpv_rttcnt); + info.tcpv_rtt = t; + } nla_put(skb, INET_DIAG_VEGASINFO, sizeof(info), &info); } } |