openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

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>
This commit is contained in:
David S. Miller 2010-12-12 21:39:02 -08:00
parent 5170ae824d
commit a02e4b7dae
1 changed files with 1 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
net/ipv6/route.c
View File

@ -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 @@ int ip6_route_add(struct fib6_config *cfg)
}
}
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))