ipv6: Demark default hoplimit as zero.

This is for consistency with ipv4.  Using "-1" makes
no sense.

It was made this way a long time ago merely to be consistent
with how the ipv6 socket hoplimit "default" is stored.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 3 deletions

diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index d9405d1863b8..98796b0dc2b7 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -1105,7 +1105,7 @@ static int ipv6_get_mtu(struct net_device *dev)
 int ip6_dst_hoplimit(struct dst_entry *dst)
 {
         int hoplimit = dst_metric_raw(dst, RTAX_HOPLIMIT);
-        if (hoplimit < 0) {
+        if (hoplimit == 0) {
                 struct net_device *dev = dst->dev;
                 struct inet6_dev *idev;
 
@@ -1310,8 +1310,6 @@ install_route:
                 }
         }
 
-        if (dst_metric_raw(&rt->dst, RTAX_HOPLIMIT) == 0)
-                dst_metric_set(&rt->dst, RTAX_HOPLIMIT, -1);
         if (!dst_mtu(&rt->dst))
                 dst_metric_set(&rt->dst, RTAX_MTU, ipv6_get_mtu(dev));
         if (!dst_metric(&rt->dst, RTAX_ADVMSS))