ipv6: Don't change dst->flags using assignments.

This blows away any flags already set in the entry.

Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index de2b1de..c2af4da 100644 (file)
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -1062,14 +1062,6 @@ struct dst_entry *icmp6_dst_alloc(struct net_device *dev,
        dst_metric_set(&rt->dst, RTAX_HOPLIMIT, 255);
        rt->dst.output  = ip6_output;
 
-#if 0  /* there's no chance to use these for ndisc */
-       rt->dst.flags   = ipv6_addr_type(addr) & IPV6_ADDR_UNICAST
-                               ? DST_HOST
-                               : 0;
-       ipv6_addr_copy(&rt->rt6i_dst.addr, addr);
-       rt->rt6i_dst.plen = 128;
-#endif
-
        spin_lock_bh(&icmp6_dst_lock);
        rt->dst.next = icmp6_dst_gc_list;
        icmp6_dst_gc_list = &rt->dst;
@@ -1244,7 +1236,7 @@ int ip6_route_add(struct fib6_config *cfg)
        ipv6_addr_prefix(&rt->rt6i_dst.addr, &cfg->fc_dst, cfg->fc_dst_len);
        rt->rt6i_dst.plen = cfg->fc_dst_len;
        if (rt->rt6i_dst.plen == 128)
-              rt->dst.flags = DST_HOST;
+              rt->dst.flags |= DST_HOST;
 
 #ifdef CONFIG_IPV6_SUBTREES
        ipv6_addr_prefix(&rt->rt6i_src.addr, &cfg->fc_src, cfg->fc_src_len);
@@ -2025,7 +2017,7 @@ struct rt6_info *addrconf_dst_alloc(struct inet6_dev *idev,
 
        in6_dev_hold(idev);
 
-       rt->dst.flags = DST_HOST;
+       rt->dst.flags |= DST_HOST;
        rt->dst.input = ip6_input;
        rt->dst.output = ip6_output;
        rt->rt6i_idev = idev;