diff options
| author | Al Viro <viro@zeniv.linux.org.uk> | 2012-11-16 22:28:34 -0500 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2012-11-16 22:28:34 -0500 |
| commit | 9526d9bc23f362035cfabf044aa90f4ed1787955 (patch) | |
| tree | 3c24639de58cfaebc9f2616750dedfdad4251c35 /net/ipv4/tcp_illinois.c | |
| parent | d042f3135e5e3a0132942335dea0155ae86a7308 (diff) | |
| parent | 6929039761a3414e5c71448eb3dcc1d82fc1891d (diff) | |
Merge branch 'arch-arm64' into no-rebases
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); } } |