ipv6: Allow non-gateway ECMP for IPv6
It is valid to have static routes where the nexthop is an interface not an address such as tunnels. For IPv4 it was possible to use ECMP on these routes but not for IPv6. Signed-off-by: Thomas Winter <Thomas.Winter@alliedtelesis.co.nz> Cc: David Ahern <dsahern@gmail.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru> Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> Acked-by: David Ahern <dsahern@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -68,8 +68,7 @@ static inline bool rt6_need_strict(const struct in6_addr *daddr)
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static inline bool rt6_qualify_for_ecmp(const struct rt6_info *rt)
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{
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return (rt->rt6i_flags & (RTF_GATEWAY|RTF_ADDRCONF|RTF_DYNAMIC)) ==
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RTF_GATEWAY;
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return (rt->rt6i_flags & (RTF_ADDRCONF | RTF_DYNAMIC)) == 0;
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}
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void ip6_route_input(struct sk_buff *skb);
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@ -934,9 +934,6 @@ static int fib6_add_rt2node(struct fib6_node *fn, struct rt6_info *rt,
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* list.
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* Only static routes (which don't have flag
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* RTF_EXPIRES) are used for ECMPv6.
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*
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* To avoid long list, we only had siblings if the
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* route have a gateway.
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*/
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if (rt_can_ecmp &&
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rt6_qualify_for_ecmp(iter))
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