ipv6: drop the judgement in rt6_alloc_cow()

Now rt6_alloc_cow() is only called by ip6_pol_route() when
rt->rt6i_flags doesn't contain both RTF_NONEXTHOP and RTF_GATEWAY,
and rt->rt6i_flags hasn't been changed in ip6_rt_copy().
So there is no neccessary to judge whether rt->rt6i_flags contains
RTF_GATEWAY or not.

Signed-off-by: Duan Jiong <duanj.fnst@cn.fujitsu.com>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 5 deletions

diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index fd399ac6c1f7..c28cdda3f5db 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -871,11 +871,9 @@ static struct rt6_info *rt6_alloc_cow(struct rt6_info *ort,
         rt = ip6_rt_copy(ort, daddr);
 
         if (rt) {
-                if (!(rt->rt6i_flags & RTF_GATEWAY)) {
-                        if (ort->rt6i_dst.plen != 128 &&
-                            ipv6_addr_equal(&ort->rt6i_dst.addr, daddr))
-                                rt->rt6i_flags |= RTF_ANYCAST;
-                }
+                if (ort->rt6i_dst.plen != 128 &&
+                    ipv6_addr_equal(&ort->rt6i_dst.addr, daddr))
+                        rt->rt6i_flags |= RTF_ANYCAST;
 
                 rt->rt6i_flags |= RTF_CACHE;