net-next: remove useless union keyword
[deliverable/linux.git] / net / ipv6 / route.c
index 252d76199c41e7589b85416bef1145e407239126..f7702850d45cefaf880a93d328ac6038c9aad4d5 100644 (file)
@@ -126,16 +126,14 @@ static struct dst_ops ip6_dst_blackhole_ops = {
 };
 
 static struct rt6_info ip6_null_entry_template = {
-       .u = {
-               .dst = {
-                       .__refcnt       = ATOMIC_INIT(1),
-                       .__use          = 1,
-                       .obsolete       = -1,
-                       .error          = -ENETUNREACH,
-                       .metrics        = { [RTAX_HOPLIMIT - 1] = 255, },
-                       .input          = ip6_pkt_discard,
-                       .output         = ip6_pkt_discard_out,
-               }
+       .dst = {
+               .__refcnt       = ATOMIC_INIT(1),
+               .__use          = 1,
+               .obsolete       = -1,
+               .error          = -ENETUNREACH,
+               .metrics        = { [RTAX_HOPLIMIT - 1] = 255, },
+               .input          = ip6_pkt_discard,
+               .output         = ip6_pkt_discard_out,
        },
        .rt6i_flags     = (RTF_REJECT | RTF_NONEXTHOP),
        .rt6i_protocol  = RTPROT_KERNEL,
@@ -149,16 +147,14 @@ static int ip6_pkt_prohibit(struct sk_buff *skb);
 static int ip6_pkt_prohibit_out(struct sk_buff *skb);
 
 static struct rt6_info ip6_prohibit_entry_template = {
-       .u = {
-               .dst = {
-                       .__refcnt       = ATOMIC_INIT(1),
-                       .__use          = 1,
-                       .obsolete       = -1,
-                       .error          = -EACCES,
-                       .metrics        = { [RTAX_HOPLIMIT - 1] = 255, },
-                       .input          = ip6_pkt_prohibit,
-                       .output         = ip6_pkt_prohibit_out,
-               }
+       .dst = {
+               .__refcnt       = ATOMIC_INIT(1),
+               .__use          = 1,
+               .obsolete       = -1,
+               .error          = -EACCES,
+               .metrics        = { [RTAX_HOPLIMIT - 1] = 255, },
+               .input          = ip6_pkt_prohibit,
+               .output         = ip6_pkt_prohibit_out,
        },
        .rt6i_flags     = (RTF_REJECT | RTF_NONEXTHOP),
        .rt6i_protocol  = RTPROT_KERNEL,
@@ -167,16 +163,14 @@ static struct rt6_info ip6_prohibit_entry_template = {
 };
 
 static struct rt6_info ip6_blk_hole_entry_template = {
-       .u = {
-               .dst = {
-                       .__refcnt       = ATOMIC_INIT(1),
-                       .__use          = 1,
-                       .obsolete       = -1,
-                       .error          = -EINVAL,
-                       .metrics        = { [RTAX_HOPLIMIT - 1] = 255, },
-                       .input          = dst_discard,
-                       .output         = dst_discard,
-               }
+       .dst = {
+               .__refcnt       = ATOMIC_INIT(1),
+               .__use          = 1,
+               .obsolete       = -1,
+               .error          = -EINVAL,
+               .metrics        = { [RTAX_HOPLIMIT - 1] = 255, },
+               .input          = dst_discard,
+               .output         = dst_discard,
        },
        .rt6i_flags     = (RTF_REJECT | RTF_NONEXTHOP),
        .rt6i_protocol  = RTPROT_KERNEL,
@@ -249,7 +243,7 @@ static inline struct rt6_info *rt6_device_match(struct net *net,
        if (!oif && ipv6_addr_any(saddr))
                goto out;
 
-       for (sprt = rt; sprt; sprt = sprt->u.dst.rt6_next) {
+       for (sprt = rt; sprt; sprt = sprt->dst.rt6_next) {
                struct net_device *dev = sprt->rt6i_dev;
 
                if (oif) {
@@ -407,10 +401,10 @@ static struct rt6_info *find_rr_leaf(struct fib6_node *fn,
 
        match = NULL;
        for (rt = rr_head; rt && rt->rt6i_metric == metric;
-            rt = rt->u.dst.rt6_next)
+            rt = rt->dst.rt6_next)
                match = find_match(rt, oif, strict, &mpri, match);
        for (rt = fn->leaf; rt && rt != rr_head && rt->rt6i_metric == metric;
-            rt = rt->u.dst.rt6_next)
+            rt = rt->dst.rt6_next)
                match = find_match(rt, oif, strict, &mpri, match);
 
        return match;
@@ -432,7 +426,7 @@ static struct rt6_info *rt6_select(struct fib6_node *fn, int oif, int strict)
 
        if (!match &&
            (strict & RT6_LOOKUP_F_REACHABLE)) {
-               struct rt6_info *next = rt0->u.dst.rt6_next;
+               struct rt6_info *next = rt0->dst.rt6_next;
 
                /* no entries matched; do round-robin */
                if (!next || next->rt6i_metric != rt0->rt6i_metric)
@@ -517,7 +511,7 @@ int rt6_route_rcv(struct net_device *dev, u8 *opt, int len,
                        rt->rt6i_expires = jiffies + HZ * lifetime;
                        rt->rt6i_flags |= RTF_EXPIRES;
                }
-               dst_release(&rt->u.dst);
+               dst_release(&rt->dst);
        }
        return 0;
 }
@@ -555,7 +549,7 @@ restart:
        rt = rt6_device_match(net, rt, &fl->fl6_src, fl->oif, flags);
        BACKTRACK(net, &fl->fl6_src);
 out:
-       dst_use(&rt->u.dst, jiffies);
+       dst_use(&rt->dst, jiffies);
        read_unlock_bh(&table->tb6_lock);
        return rt;
 
@@ -643,7 +637,7 @@ static struct rt6_info *rt6_alloc_cow(struct rt6_info *ort, struct in6_addr *dad
                ipv6_addr_copy(&rt->rt6i_dst.addr, daddr);
                rt->rt6i_dst.plen = 128;
                rt->rt6i_flags |= RTF_CACHE;
-               rt->u.dst.flags |= DST_HOST;
+               rt->dst.flags |= DST_HOST;
 
 #ifdef CONFIG_IPV6_SUBTREES
                if (rt->rt6i_src.plen && saddr) {
@@ -677,7 +671,7 @@ static struct rt6_info *rt6_alloc_cow(struct rt6_info *ort, struct in6_addr *dad
                        if (net_ratelimit())
                                printk(KERN_WARNING
                                       "Neighbour table overflow.\n");
-                       dst_free(&rt->u.dst);
+                       dst_free(&rt->dst);
                        return NULL;
                }
                rt->rt6i_nexthop = neigh;
@@ -694,7 +688,7 @@ static struct rt6_info *rt6_alloc_clone(struct rt6_info *ort, struct in6_addr *d
                ipv6_addr_copy(&rt->rt6i_dst.addr, daddr);
                rt->rt6i_dst.plen = 128;
                rt->rt6i_flags |= RTF_CACHE;
-               rt->u.dst.flags |= DST_HOST;
+               rt->dst.flags |= DST_HOST;
                rt->rt6i_nexthop = neigh_clone(ort->rt6i_nexthop);
        }
        return rt;
@@ -726,7 +720,7 @@ restart:
            rt->rt6i_flags & RTF_CACHE)
                goto out;
 
-       dst_hold(&rt->u.dst);
+       dst_hold(&rt->dst);
        read_unlock_bh(&table->tb6_lock);
 
        if (!rt->rt6i_nexthop && !(rt->rt6i_flags & RTF_NONEXTHOP))
@@ -739,10 +733,10 @@ restart:
 #endif
        }
 
-       dst_release(&rt->u.dst);
+       dst_release(&rt->dst);
        rt = nrt ? : net->ipv6.ip6_null_entry;
 
-       dst_hold(&rt->u.dst);
+       dst_hold(&rt->dst);
        if (nrt) {
                err = ip6_ins_rt(nrt);
                if (!err)
@@ -756,7 +750,7 @@ restart:
         * Race condition! In the gap, when table->tb6_lock was
         * released someone could insert this route.  Relookup.
         */
-       dst_release(&rt->u.dst);
+       dst_release(&rt->dst);
        goto relookup;
 
 out:
@@ -764,11 +758,11 @@ out:
                reachable = 0;
                goto restart_2;
        }
-       dst_hold(&rt->u.dst);
+       dst_hold(&rt->dst);
        read_unlock_bh(&table->tb6_lock);
 out2:
-       rt->u.dst.lastuse = jiffies;
-       rt->u.dst.__use++;
+       rt->dst.lastuse = jiffies;
+       rt->dst.__use++;
 
        return rt;
 }
@@ -835,15 +829,15 @@ int ip6_dst_blackhole(struct sock *sk, struct dst_entry **dstp, struct flowi *fl
        struct dst_entry *new = NULL;
 
        if (rt) {
-               new = &rt->u.dst;
+               new = &rt->dst;
 
                atomic_set(&new->__refcnt, 1);
                new->__use = 1;
                new->input = dst_discard;
                new->output = dst_discard;
 
-               memcpy(new->metrics, ort->u.dst.metrics, RTAX_MAX*sizeof(u32));
-               new->dev = ort->u.dst.dev;
+               memcpy(new->metrics, ort->dst.metrics, RTAX_MAX*sizeof(u32));
+               new->dev = ort->dst.dev;
                if (new->dev)
                        dev_hold(new->dev);
                rt->rt6i_idev = ort->rt6i_idev;
@@ -912,7 +906,7 @@ static void ip6_link_failure(struct sk_buff *skb)
        rt = (struct rt6_info *) skb_dst(skb);
        if (rt) {
                if (rt->rt6i_flags&RTF_CACHE) {
-                       dst_set_expires(&rt->u.dst, 0);
+                       dst_set_expires(&rt->dst, 0);
                        rt->rt6i_flags |= RTF_EXPIRES;
                } else if (rt->rt6i_node && (rt->rt6i_flags & RTF_DEFAULT))
                        rt->rt6i_node->fn_sernum = -1;
@@ -986,14 +980,14 @@ struct dst_entry *icmp6_dst_alloc(struct net_device *dev,
        rt->rt6i_dev      = dev;
        rt->rt6i_idev     = idev;
        rt->rt6i_nexthop  = neigh;
-       atomic_set(&rt->u.dst.__refcnt, 1);
-       rt->u.dst.metrics[RTAX_HOPLIMIT-1] = 255;
-       rt->u.dst.metrics[RTAX_MTU-1] = ipv6_get_mtu(rt->rt6i_dev);
-       rt->u.dst.metrics[RTAX_ADVMSS-1] = ipv6_advmss(net, dst_mtu(&rt->u.dst));
-       rt->u.dst.output  = ip6_output;
+       atomic_set(&rt->dst.__refcnt, 1);
+       rt->dst.metrics[RTAX_HOPLIMIT-1] = 255;
+       rt->dst.metrics[RTAX_MTU-1] = ipv6_get_mtu(rt->rt6i_dev);
+       rt->dst.metrics[RTAX_ADVMSS-1] = ipv6_advmss(net, dst_mtu(&rt->dst));
+       rt->dst.output  = ip6_output;
 
 #if 0  /* there's no chance to use these for ndisc */
-       rt->u.dst.flags   = ipv6_addr_type(addr) & IPV6_ADDR_UNICAST
+       rt->dst.flags   = ipv6_addr_type(addr) & IPV6_ADDR_UNICAST
                                ? DST_HOST
                                : 0;
        ipv6_addr_copy(&rt->rt6i_dst.addr, addr);
@@ -1001,14 +995,14 @@ struct dst_entry *icmp6_dst_alloc(struct net_device *dev,
 #endif
 
        spin_lock_bh(&icmp6_dst_lock);
-       rt->u.dst.next = icmp6_dst_gc_list;
-       icmp6_dst_gc_list = &rt->u.dst;
+       rt->dst.next = icmp6_dst_gc_list;
+       icmp6_dst_gc_list = &rt->dst;
        spin_unlock_bh(&icmp6_dst_lock);
 
        fib6_force_start_gc(net);
 
 out:
-       return &rt->u.dst;
+       return &rt->dst;
 }
 
 int icmp6_dst_gc(void)
@@ -1159,7 +1153,7 @@ int ip6_route_add(struct fib6_config *cfg)
                goto out;
        }
 
-       rt->u.dst.obsolete = -1;
+       rt->dst.obsolete = -1;
        rt->rt6i_expires = (cfg->fc_flags & RTF_EXPIRES) ?
                                jiffies + clock_t_to_jiffies(cfg->fc_expires) :
                                0;
@@ -1171,16 +1165,16 @@ int ip6_route_add(struct fib6_config *cfg)
        addr_type = ipv6_addr_type(&cfg->fc_dst);
 
        if (addr_type & IPV6_ADDR_MULTICAST)
-               rt->u.dst.input = ip6_mc_input;
+               rt->dst.input = ip6_mc_input;
        else
-               rt->u.dst.input = ip6_forward;
+               rt->dst.input = ip6_forward;
 
-       rt->u.dst.output = ip6_output;
+       rt->dst.output = ip6_output;
 
        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->u.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);
@@ -1208,9 +1202,9 @@ int ip6_route_add(struct fib6_config *cfg)
                                goto out;
                        }
                }
-               rt->u.dst.output = ip6_pkt_discard_out;
-               rt->u.dst.input = ip6_pkt_discard;
-               rt->u.dst.error = -ENETUNREACH;
+               rt->dst.output = ip6_pkt_discard_out;
+               rt->dst.input = ip6_pkt_discard;
+               rt->dst.error = -ENETUNREACH;
                rt->rt6i_flags = RTF_REJECT|RTF_NONEXTHOP;
                goto install_route;
        }
@@ -1244,7 +1238,7 @@ int ip6_route_add(struct fib6_config *cfg)
                                goto out;
                        if (dev) {
                                if (dev != grt->rt6i_dev) {
-                                       dst_release(&grt->u.dst);
+                                       dst_release(&grt->dst);
                                        goto out;
                                }
                        } else {
@@ -1255,7 +1249,7 @@ int ip6_route_add(struct fib6_config *cfg)
                        }
                        if (!(grt->rt6i_flags&RTF_GATEWAY))
                                err = 0;
-                       dst_release(&grt->u.dst);
+                       dst_release(&grt->dst);
 
                        if (err)
                                goto out;
@@ -1294,18 +1288,18 @@ install_route:
                                        goto out;
                                }
 
-                               rt->u.dst.metrics[type - 1] = nla_get_u32(nla);
+                               rt->dst.metrics[type - 1] = nla_get_u32(nla);
                        }
                }
        }
 
-       if (dst_metric(&rt->u.dst, RTAX_HOPLIMIT) == 0)
-               rt->u.dst.metrics[RTAX_HOPLIMIT-1] = -1;
-       if (!dst_mtu(&rt->u.dst))
-               rt->u.dst.metrics[RTAX_MTU-1] = ipv6_get_mtu(dev);
-       if (!dst_metric(&rt->u.dst, RTAX_ADVMSS))
-               rt->u.dst.metrics[RTAX_ADVMSS-1] = ipv6_advmss(net, dst_mtu(&rt->u.dst));
-       rt->u.dst.dev = dev;
+       if (dst_metric(&rt->dst, RTAX_HOPLIMIT) == 0)
+               rt->dst.metrics[RTAX_HOPLIMIT-1] = -1;
+       if (!dst_mtu(&rt->dst))
+               rt->dst.metrics[RTAX_MTU-1] = ipv6_get_mtu(dev);
+       if (!dst_metric(&rt->dst, RTAX_ADVMSS))
+               rt->dst.metrics[RTAX_ADVMSS-1] = ipv6_advmss(net, dst_mtu(&rt->dst));
+       rt->dst.dev = dev;
        rt->rt6i_idev = idev;
        rt->rt6i_table = table;
 
@@ -1319,7 +1313,7 @@ out:
        if (idev)
                in6_dev_put(idev);
        if (rt)
-               dst_free(&rt->u.dst);
+               dst_free(&rt->dst);
        return err;
 }
 
@@ -1336,7 +1330,7 @@ static int __ip6_del_rt(struct rt6_info *rt, struct nl_info *info)
        write_lock_bh(&table->tb6_lock);
 
        err = fib6_del(rt, info);
-       dst_release(&rt->u.dst);
+       dst_release(&rt->dst);
 
        write_unlock_bh(&table->tb6_lock);
 
@@ -1369,7 +1363,7 @@ static int ip6_route_del(struct fib6_config *cfg)
                         &cfg->fc_src, cfg->fc_src_len);
 
        if (fn) {
-               for (rt = fn->leaf; rt; rt = rt->u.dst.rt6_next) {
+               for (rt = fn->leaf; rt; rt = rt->dst.rt6_next) {
                        if (cfg->fc_ifindex &&
                            (rt->rt6i_dev == NULL ||
                             rt->rt6i_dev->ifindex != cfg->fc_ifindex))
@@ -1379,7 +1373,7 @@ static int ip6_route_del(struct fib6_config *cfg)
                                continue;
                        if (cfg->fc_metric && cfg->fc_metric != rt->rt6i_metric)
                                continue;
-                       dst_hold(&rt->u.dst);
+                       dst_hold(&rt->dst);
                        read_unlock_bh(&table->tb6_lock);
 
                        return __ip6_del_rt(rt, &cfg->fc_nlinfo);
@@ -1421,7 +1415,7 @@ static struct rt6_info *__ip6_route_redirect(struct net *net,
        read_lock_bh(&table->tb6_lock);
        fn = fib6_lookup(&table->tb6_root, &fl->fl6_dst, &fl->fl6_src);
 restart:
-       for (rt = fn->leaf; rt; rt = rt->u.dst.rt6_next) {
+       for (rt = fn->leaf; rt; rt = rt->dst.rt6_next) {
                /*
                 * Current route is on-link; redirect is always invalid.
                 *
@@ -1445,7 +1439,7 @@ restart:
                rt = net->ipv6.ip6_null_entry;
        BACKTRACK(net, &fl->fl6_src);
 out:
-       dst_hold(&rt->u.dst);
+       dst_hold(&rt->dst);
 
        read_unlock_bh(&table->tb6_lock);
 
@@ -1513,10 +1507,10 @@ void rt6_redirect(struct in6_addr *dest, struct in6_addr *src,
         * Look, redirects are sent only in response to data packets,
         * so that this nexthop apparently is reachable. --ANK
         */
-       dst_confirm(&rt->u.dst);
+       dst_confirm(&rt->dst);
 
        /* Duplicate redirect: silently ignore. */
-       if (neigh == rt->u.dst.neighbour)
+       if (neigh == rt->dst.neighbour)
                goto out;
 
        nrt = ip6_rt_copy(rt);
@@ -1529,20 +1523,20 @@ void rt6_redirect(struct in6_addr *dest, struct in6_addr *src,
 
        ipv6_addr_copy(&nrt->rt6i_dst.addr, dest);
        nrt->rt6i_dst.plen = 128;
-       nrt->u.dst.flags |= DST_HOST;
+       nrt->dst.flags |= DST_HOST;
 
        ipv6_addr_copy(&nrt->rt6i_gateway, (struct in6_addr*)neigh->primary_key);
        nrt->rt6i_nexthop = neigh_clone(neigh);
        /* Reset pmtu, it may be better */
-       nrt->u.dst.metrics[RTAX_MTU-1] = ipv6_get_mtu(neigh->dev);
-       nrt->u.dst.metrics[RTAX_ADVMSS-1] = ipv6_advmss(dev_net(neigh->dev),
-                                                       dst_mtu(&nrt->u.dst));
+       nrt->dst.metrics[RTAX_MTU-1] = ipv6_get_mtu(neigh->dev);
+       nrt->dst.metrics[RTAX_ADVMSS-1] = ipv6_advmss(dev_net(neigh->dev),
+                                                       dst_mtu(&nrt->dst));
 
        if (ip6_ins_rt(nrt))
                goto out;
 
-       netevent.old = &rt->u.dst;
-       netevent.new = &nrt->u.dst;
+       netevent.old = &rt->dst;
+       netevent.new = &nrt->dst;
        call_netevent_notifiers(NETEVENT_REDIRECT, &netevent);
 
        if (rt->rt6i_flags&RTF_CACHE) {
@@ -1551,7 +1545,7 @@ void rt6_redirect(struct in6_addr *dest, struct in6_addr *src,
        }
 
 out:
-       dst_release(&rt->u.dst);
+       dst_release(&rt->dst);
 }
 
 /*
@@ -1570,7 +1564,7 @@ void rt6_pmtu_discovery(struct in6_addr *daddr, struct in6_addr *saddr,
        if (rt == NULL)
                return;
 
-       if (pmtu >= dst_mtu(&rt->u.dst))
+       if (pmtu >= dst_mtu(&rt->dst))
                goto out;
 
        if (pmtu < IPV6_MIN_MTU) {
@@ -1588,7 +1582,7 @@ void rt6_pmtu_discovery(struct in6_addr *daddr, struct in6_addr *saddr,
           They are sent only in response to data packets,
           so that this nexthop apparently is reachable. --ANK
         */
-       dst_confirm(&rt->u.dst);
+       dst_confirm(&rt->dst);
 
        /* Host route. If it is static, it would be better
           not to override it, but add new one, so that
@@ -1596,10 +1590,10 @@ void rt6_pmtu_discovery(struct in6_addr *daddr, struct in6_addr *saddr,
           would return automatically.
         */
        if (rt->rt6i_flags & RTF_CACHE) {
-               rt->u.dst.metrics[RTAX_MTU-1] = pmtu;
+               rt->dst.metrics[RTAX_MTU-1] = pmtu;
                if (allfrag)
-                       rt->u.dst.metrics[RTAX_FEATURES-1] |= RTAX_FEATURE_ALLFRAG;
-               dst_set_expires(&rt->u.dst, net->ipv6.sysctl.ip6_rt_mtu_expires);
+                       rt->dst.metrics[RTAX_FEATURES-1] |= RTAX_FEATURE_ALLFRAG;
+               dst_set_expires(&rt->dst, net->ipv6.sysctl.ip6_rt_mtu_expires);
                rt->rt6i_flags |= RTF_MODIFIED|RTF_EXPIRES;
                goto out;
        }
@@ -1615,9 +1609,9 @@ void rt6_pmtu_discovery(struct in6_addr *daddr, struct in6_addr *saddr,
                nrt = rt6_alloc_clone(rt, daddr);
 
        if (nrt) {
-               nrt->u.dst.metrics[RTAX_MTU-1] = pmtu;
+               nrt->dst.metrics[RTAX_MTU-1] = pmtu;
                if (allfrag)
-                       nrt->u.dst.metrics[RTAX_FEATURES-1] |= RTAX_FEATURE_ALLFRAG;
+                       nrt->dst.metrics[RTAX_FEATURES-1] |= RTAX_FEATURE_ALLFRAG;
 
                /* According to RFC 1981, detecting PMTU increase shouldn't be
                 * happened within 5 mins, the recommended timer is 10 mins.
@@ -1625,13 +1619,13 @@ void rt6_pmtu_discovery(struct in6_addr *daddr, struct in6_addr *saddr,
                 * which is 10 mins. After 10 mins the decreased pmtu is expired
                 * and detecting PMTU increase will be automatically happened.
                 */
-               dst_set_expires(&nrt->u.dst, net->ipv6.sysctl.ip6_rt_mtu_expires);
+               dst_set_expires(&nrt->dst, net->ipv6.sysctl.ip6_rt_mtu_expires);
                nrt->rt6i_flags |= RTF_DYNAMIC|RTF_EXPIRES;
 
                ip6_ins_rt(nrt);
        }
 out:
-       dst_release(&rt->u.dst);
+       dst_release(&rt->dst);
 }
 
 /*
@@ -1644,18 +1638,18 @@ static struct rt6_info * ip6_rt_copy(struct rt6_info *ort)
        struct rt6_info *rt = ip6_dst_alloc(&net->ipv6.ip6_dst_ops);
 
        if (rt) {
-               rt->u.dst.input = ort->u.dst.input;
-               rt->u.dst.output = ort->u.dst.output;
-
-               memcpy(rt->u.dst.metrics, ort->u.dst.metrics, RTAX_MAX*sizeof(u32));
-               rt->u.dst.error = ort->u.dst.error;
-               rt->u.dst.dev = ort->u.dst.dev;
-               if (rt->u.dst.dev)
-                       dev_hold(rt->u.dst.dev);
+               rt->dst.input = ort->dst.input;
+               rt->dst.output = ort->dst.output;
+
+               memcpy(rt->dst.metrics, ort->dst.metrics, RTAX_MAX*sizeof(u32));
+               rt->dst.error = ort->dst.error;
+               rt->dst.dev = ort->dst.dev;
+               if (rt->dst.dev)
+                       dev_hold(rt->dst.dev);
                rt->rt6i_idev = ort->rt6i_idev;
                if (rt->rt6i_idev)
                        in6_dev_hold(rt->rt6i_idev);
-               rt->u.dst.lastuse = jiffies;
+               rt->dst.lastuse = jiffies;
                rt->rt6i_expires = 0;
 
                ipv6_addr_copy(&rt->rt6i_gateway, &ort->rt6i_gateway);
@@ -1689,14 +1683,14 @@ static struct rt6_info *rt6_get_route_info(struct net *net,
        if (!fn)
                goto out;
 
-       for (rt = fn->leaf; rt; rt = rt->u.dst.rt6_next) {
+       for (rt = fn->leaf; rt; rt = rt->dst.rt6_next) {
                if (rt->rt6i_dev->ifindex != ifindex)
                        continue;
                if ((rt->rt6i_flags & (RTF_ROUTEINFO|RTF_GATEWAY)) != (RTF_ROUTEINFO|RTF_GATEWAY))
                        continue;
                if (!ipv6_addr_equal(&rt->rt6i_gateway, gwaddr))
                        continue;
-               dst_hold(&rt->u.dst);
+               dst_hold(&rt->dst);
                break;
        }
 out:
@@ -1744,14 +1738,14 @@ struct rt6_info *rt6_get_dflt_router(struct in6_addr *addr, struct net_device *d
                return NULL;
 
        write_lock_bh(&table->tb6_lock);
-       for (rt = table->tb6_root.leaf; rt; rt=rt->u.dst.rt6_next) {
+       for (rt = table->tb6_root.leaf; rt; rt=rt->dst.rt6_next) {
                if (dev == rt->rt6i_dev &&
                    ((rt->rt6i_flags & (RTF_ADDRCONF | RTF_DEFAULT)) == (RTF_ADDRCONF | RTF_DEFAULT)) &&
                    ipv6_addr_equal(&rt->rt6i_gateway, addr))
                        break;
        }
        if (rt)
-               dst_hold(&rt->u.dst);
+               dst_hold(&rt->dst);
        write_unlock_bh(&table->tb6_lock);
        return rt;
 }
@@ -1790,9 +1784,9 @@ void rt6_purge_dflt_routers(struct net *net)
 
 restart:
        read_lock_bh(&table->tb6_lock);
-       for (rt = table->tb6_root.leaf; rt; rt = rt->u.dst.rt6_next) {
+       for (rt = table->tb6_root.leaf; rt; rt = rt->dst.rt6_next) {
                if (rt->rt6i_flags & (RTF_DEFAULT | RTF_ADDRCONF)) {
-                       dst_hold(&rt->u.dst);
+                       dst_hold(&rt->dst);
                        read_unlock_bh(&table->tb6_lock);
                        ip6_del_rt(rt);
                        goto restart;
@@ -1930,15 +1924,15 @@ struct rt6_info *addrconf_dst_alloc(struct inet6_dev *idev,
        dev_hold(net->loopback_dev);
        in6_dev_hold(idev);
 
-       rt->u.dst.flags = DST_HOST;
-       rt->u.dst.input = ip6_input;
-       rt->u.dst.output = ip6_output;
+       rt->dst.flags = DST_HOST;
+       rt->dst.input = ip6_input;
+       rt->dst.output = ip6_output;
        rt->rt6i_dev = net->loopback_dev;
        rt->rt6i_idev = idev;
-       rt->u.dst.metrics[RTAX_MTU-1] = ipv6_get_mtu(rt->rt6i_dev);
-       rt->u.dst.metrics[RTAX_ADVMSS-1] = ipv6_advmss(net, dst_mtu(&rt->u.dst));
-       rt->u.dst.metrics[RTAX_HOPLIMIT-1] = -1;
-       rt->u.dst.obsolete = -1;
+       rt->dst.metrics[RTAX_MTU-1] = ipv6_get_mtu(rt->rt6i_dev);
+       rt->dst.metrics[RTAX_ADVMSS-1] = ipv6_advmss(net, dst_mtu(&rt->dst));
+       rt->dst.metrics[RTAX_HOPLIMIT-1] = -1;
+       rt->dst.obsolete = -1;
 
        rt->rt6i_flags = RTF_UP | RTF_NONEXTHOP;
        if (anycast)
@@ -1947,7 +1941,7 @@ struct rt6_info *addrconf_dst_alloc(struct inet6_dev *idev,
                rt->rt6i_flags |= RTF_LOCAL;
        neigh = ndisc_get_neigh(rt->rt6i_dev, &rt->rt6i_gateway);
        if (IS_ERR(neigh)) {
-               dst_free(&rt->u.dst);
+               dst_free(&rt->dst);
 
                /* We are casting this because that is the return
                 * value type.  But an errno encoded pointer is the
@@ -1962,7 +1956,7 @@ struct rt6_info *addrconf_dst_alloc(struct inet6_dev *idev,
        rt->rt6i_dst.plen = 128;
        rt->rt6i_table = fib6_get_table(net, RT6_TABLE_LOCAL);
 
-       atomic_set(&rt->u.dst.__refcnt, 1);
+       atomic_set(&rt->dst.__refcnt, 1);
 
        return rt;
 }
@@ -2033,12 +2027,12 @@ static int rt6_mtu_change_route(struct rt6_info *rt, void *p_arg)
           PMTU discouvery.
         */
        if (rt->rt6i_dev == arg->dev &&
-           !dst_metric_locked(&rt->u.dst, RTAX_MTU) &&
-           (dst_mtu(&rt->u.dst) >= arg->mtu ||
-            (dst_mtu(&rt->u.dst) < arg->mtu &&
-             dst_mtu(&rt->u.dst) == idev->cnf.mtu6))) {
-               rt->u.dst.metrics[RTAX_MTU-1] = arg->mtu;
-               rt->u.dst.metrics[RTAX_ADVMSS-1] = ipv6_advmss(net, arg->mtu);
+           !dst_metric_locked(&rt->dst, RTAX_MTU) &&
+           (dst_mtu(&rt->dst) >= arg->mtu ||
+            (dst_mtu(&rt->dst) < arg->mtu &&
+             dst_mtu(&rt->dst) == idev->cnf.mtu6))) {
+               rt->dst.metrics[RTAX_MTU-1] = arg->mtu;
+               rt->dst.metrics[RTAX_ADVMSS-1] = ipv6_advmss(net, arg->mtu);
        }
        return 0;
 }
@@ -2252,20 +2246,20 @@ static int rt6_fill_node(struct net *net,
 #endif
                        NLA_PUT_U32(skb, RTA_IIF, iif);
        } else if (dst) {
-               struct inet6_dev *idev = ip6_dst_idev(&rt->u.dst);
+               struct inet6_dev *idev = ip6_dst_idev(&rt->dst);
                struct in6_addr saddr_buf;
                if (ipv6_dev_get_saddr(net, idev ? idev->dev : NULL,
                                       dst, 0, &saddr_buf) == 0)
                        NLA_PUT(skb, RTA_PREFSRC, 16, &saddr_buf);
        }
 
-       if (rtnetlink_put_metrics(skb, rt->u.dst.metrics) < 0)
+       if (rtnetlink_put_metrics(skb, rt->dst.metrics) < 0)
                goto nla_put_failure;
 
-       if (rt->u.dst.neighbour)
-               NLA_PUT(skb, RTA_GATEWAY, 16, &rt->u.dst.neighbour->primary_key);
+       if (rt->dst.neighbour)
+               NLA_PUT(skb, RTA_GATEWAY, 16, &rt->dst.neighbour->primary_key);
 
-       if (rt->u.dst.dev)
+       if (rt->dst.dev)
                NLA_PUT_U32(skb, RTA_OIF, rt->rt6i_dev->ifindex);
 
        NLA_PUT_U32(skb, RTA_PRIORITY, rt->rt6i_metric);
@@ -2277,8 +2271,8 @@ static int rt6_fill_node(struct net *net,
        else
                expires = INT_MAX;
 
-       if (rtnl_put_cacheinfo(skb, &rt->u.dst, 0, 0, 0,
-                              expires, rt->u.dst.error) < 0)
+       if (rtnl_put_cacheinfo(skb, &rt->dst, 0, 0, 0,
+                              expires, rt->dst.error) < 0)
                goto nla_put_failure;
 
        return nlmsg_end(skb, nlh);
@@ -2364,7 +2358,7 @@ static int inet6_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr* nlh, void
        skb_reserve(skb, MAX_HEADER + sizeof(struct ipv6hdr));
 
        rt = (struct rt6_info*) ip6_route_output(net, NULL, &fl);
-       skb_dst_set(skb, &rt->u.dst);
+       skb_dst_set(skb, &rt->dst);
 
        err = rt6_fill_node(net, skb, rt, &fl.fl6_dst, &fl.fl6_src, iif,
                            RTM_NEWROUTE, NETLINK_CB(in_skb).pid,
@@ -2416,12 +2410,12 @@ static int ip6_route_dev_notify(struct notifier_block *this,
        struct net *net = dev_net(dev);
 
        if (event == NETDEV_REGISTER && (dev->flags & IFF_LOOPBACK)) {
-               net->ipv6.ip6_null_entry->u.dst.dev = dev;
+               net->ipv6.ip6_null_entry->dst.dev = dev;
                net->ipv6.ip6_null_entry->rt6i_idev = in6_dev_get(dev);
 #ifdef CONFIG_IPV6_MULTIPLE_TABLES
-               net->ipv6.ip6_prohibit_entry->u.dst.dev = dev;
+               net->ipv6.ip6_prohibit_entry->dst.dev = dev;
                net->ipv6.ip6_prohibit_entry->rt6i_idev = in6_dev_get(dev);
-               net->ipv6.ip6_blk_hole_entry->u.dst.dev = dev;
+               net->ipv6.ip6_blk_hole_entry->dst.dev = dev;
                net->ipv6.ip6_blk_hole_entry->rt6i_idev = in6_dev_get(dev);
 #endif
        }
@@ -2464,8 +2458,8 @@ static int rt6_info_route(struct rt6_info *rt, void *p_arg)
                seq_puts(m, "00000000000000000000000000000000");
        }
        seq_printf(m, " %08x %08x %08x %08x %8s\n",
-                  rt->rt6i_metric, atomic_read(&rt->u.dst.__refcnt),
-                  rt->u.dst.__use, rt->rt6i_flags,
+                  rt->rt6i_metric, atomic_read(&rt->dst.__refcnt),
+                  rt->dst.__use, rt->rt6i_flags,
                   rt->rt6i_dev ? rt->rt6i_dev->name : "");
        return 0;
 }
@@ -2646,9 +2640,9 @@ static int __net_init ip6_route_net_init(struct net *net)
                                           GFP_KERNEL);
        if (!net->ipv6.ip6_null_entry)
                goto out_ip6_dst_ops;
-       net->ipv6.ip6_null_entry->u.dst.path =
+       net->ipv6.ip6_null_entry->dst.path =
                (struct dst_entry *)net->ipv6.ip6_null_entry;
-       net->ipv6.ip6_null_entry->u.dst.ops = &net->ipv6.ip6_dst_ops;
+       net->ipv6.ip6_null_entry->dst.ops = &net->ipv6.ip6_dst_ops;
 
 #ifdef CONFIG_IPV6_MULTIPLE_TABLES
        net->ipv6.ip6_prohibit_entry = kmemdup(&ip6_prohibit_entry_template,
@@ -2656,18 +2650,18 @@ static int __net_init ip6_route_net_init(struct net *net)
                                               GFP_KERNEL);
        if (!net->ipv6.ip6_prohibit_entry)
                goto out_ip6_null_entry;
-       net->ipv6.ip6_prohibit_entry->u.dst.path =
+       net->ipv6.ip6_prohibit_entry->dst.path =
                (struct dst_entry *)net->ipv6.ip6_prohibit_entry;
-       net->ipv6.ip6_prohibit_entry->u.dst.ops = &net->ipv6.ip6_dst_ops;
+       net->ipv6.ip6_prohibit_entry->dst.ops = &net->ipv6.ip6_dst_ops;
 
        net->ipv6.ip6_blk_hole_entry = kmemdup(&ip6_blk_hole_entry_template,
                                               sizeof(*net->ipv6.ip6_blk_hole_entry),
                                               GFP_KERNEL);
        if (!net->ipv6.ip6_blk_hole_entry)
                goto out_ip6_prohibit_entry;
-       net->ipv6.ip6_blk_hole_entry->u.dst.path =
+       net->ipv6.ip6_blk_hole_entry->dst.path =
                (struct dst_entry *)net->ipv6.ip6_blk_hole_entry;
-       net->ipv6.ip6_blk_hole_entry->u.dst.ops = &net->ipv6.ip6_dst_ops;
+       net->ipv6.ip6_blk_hole_entry->dst.ops = &net->ipv6.ip6_dst_ops;
 #endif
 
        net->ipv6.sysctl.flush_delay = 0;
@@ -2742,12 +2736,12 @@ int __init ip6_route_init(void)
        /* Registering of the loopback is done before this portion of code,
         * the loopback reference in rt6_info will not be taken, do it
         * manually for init_net */
-       init_net.ipv6.ip6_null_entry->u.dst.dev = init_net.loopback_dev;
+       init_net.ipv6.ip6_null_entry->dst.dev = init_net.loopback_dev;
        init_net.ipv6.ip6_null_entry->rt6i_idev = in6_dev_get(init_net.loopback_dev);
   #ifdef CONFIG_IPV6_MULTIPLE_TABLES
-       init_net.ipv6.ip6_prohibit_entry->u.dst.dev = init_net.loopback_dev;
+       init_net.ipv6.ip6_prohibit_entry->dst.dev = init_net.loopback_dev;
        init_net.ipv6.ip6_prohibit_entry->rt6i_idev = in6_dev_get(init_net.loopback_dev);
-       init_net.ipv6.ip6_blk_hole_entry->u.dst.dev = init_net.loopback_dev;
+       init_net.ipv6.ip6_blk_hole_entry->dst.dev = init_net.loopback_dev;
        init_net.ipv6.ip6_blk_hole_entry->rt6i_idev = in6_dev_get(init_net.loopback_dev);
   #endif
        ret = fib6_init();
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