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Subject[PATCH 2/2] ip6_tunnel: fix setting hop_limit value for ipv6 tunnel
Date
Similar to vxlan/geneve tunnel, if hop_limit is zero, it should fall
back to ip6_dst_hoplimt().

Signed-off-by: Haishuang Yan <yanhaishuang@cmss.chinamobile.com>
---
net/ipv6/ip6_tunnel.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index 3a0ba2a..10a693a 100644
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -1184,6 +1184,7 @@ int ip6_tnl_xmit(struct sk_buff *skb, struct net_device *dev, __u8 dsfield,
init_tel_txopt(&opt, encap_limit);
ipv6_push_frag_opts(skb, &opt.ops, &proto);
}
+ hop_limit = hop_limit ? : ip6_dst_hoplimit(dst);

/* Calculate max headroom for all the headers and adjust
* needed_headroom if necessary.
--
1.8.3.1


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