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ip6_tunnel: fix setting hop_limit value for ipv6 tunnel
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> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -1184,6 +1184,7 @@ int ip6_tnl_xmit(struct sk_buff *skb, struct net_device *dev, __u8 dsfield,
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init_tel_txopt(&opt, encap_limit);
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ipv6_push_frag_opts(skb, &opt.ops, &proto);
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}
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hop_limit = hop_limit ? : ip6_dst_hoplimit(dst);
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/* Calculate max headroom for all the headers and adjust
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* needed_headroom if necessary.
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