Merge branch 'ipv6-followup-to-fib6_info-change'

David Ahern says:

====================
net/ipv6: followup to fib6_info change

Followup to fib change for IPv6.

First 2 patches rename fib6_info struct elements to match its name,
and rename addrconf_dst_alloc to match what it returns.

Patches 3-7 refactor the code to remove the need for fib6_idev reducing
fib6_info by another 8 bytes to 200 bytes.

Patch 8 fixes the gfp flags argument to addrconf_prefix_route in a
couple of places.
====================

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

drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c

@@ -4705,17 +4705,17 @@ static bool mlxsw_sp_fib6_rt_should_ignore(const struct fib6_info *rt)
 	 * are trapped to the CPU, so no need to program specific routes
 	 * for them.
 	 */
-	if (ipv6_addr_type(&rt->rt6i_dst.addr) & IPV6_ADDR_LINKLOCAL)
+	if (ipv6_addr_type(&rt->fib6_dst.addr) & IPV6_ADDR_LINKLOCAL)
 		return true;
 
 	/* Multicast routes aren't supported, so ignore them. Neighbour
 	 * Discovery packets are specifically trapped.
 	 */
-	if (ipv6_addr_type(&rt->rt6i_dst.addr) & IPV6_ADDR_MULTICAST)
+	if (ipv6_addr_type(&rt->fib6_dst.addr) & IPV6_ADDR_MULTICAST)
 		return true;
 
 	/* Cloned routes are irrelevant in the forwarding path. */
-	if (rt->rt6i_flags & RTF_CACHE)
+	if (rt->fib6_flags & RTF_CACHE)
 		return true;
 
 	return false;
@@ -4759,7 +4759,7 @@ static void mlxsw_sp_rt6_destroy(struct mlxsw_sp_rt6 *mlxsw_sp_rt6)
 static bool mlxsw_sp_fib6_rt_can_mp(const struct fib6_info *rt)
 {
 	/* RTF_CACHE routes are ignored */
-	return (rt->rt6i_flags & (RTF_GATEWAY | RTF_ADDRCONF)) == RTF_GATEWAY;
+	return (rt->fib6_flags & (RTF_GATEWAY | RTF_ADDRCONF)) == RTF_GATEWAY;
 }
 
 static struct fib6_info *
@@ -4784,16 +4784,16 @@ mlxsw_sp_fib6_node_mp_entry_find(const struct mlxsw_sp_fib_node *fib_node,
 		/* RT6_TABLE_LOCAL and RT6_TABLE_MAIN share the same
 		 * virtual router.
 		 */
-		if (rt->rt6i_table->tb6_id > nrt->rt6i_table->tb6_id)
+		if (rt->fib6_table->tb6_id > nrt->fib6_table->tb6_id)
 			continue;
-		if (rt->rt6i_table->tb6_id != nrt->rt6i_table->tb6_id)
+		if (rt->fib6_table->tb6_id != nrt->fib6_table->tb6_id)
 			break;
-		if (rt->rt6i_metric < nrt->rt6i_metric)
+		if (rt->fib6_metric < nrt->fib6_metric)
 			continue;
-		if (rt->rt6i_metric == nrt->rt6i_metric &&
+		if (rt->fib6_metric == nrt->fib6_metric &&
 		    mlxsw_sp_fib6_rt_can_mp(rt))
 			return fib6_entry;
-		if (rt->rt6i_metric > nrt->rt6i_metric)
+		if (rt->fib6_metric > nrt->fib6_metric)
 			break;
 	}
 
@@ -4899,7 +4899,7 @@ static void mlxsw_sp_nexthop6_fini(struct mlxsw_sp *mlxsw_sp,
 static bool mlxsw_sp_rt6_is_gateway(const struct mlxsw_sp *mlxsw_sp,
 				    const struct fib6_info *rt)
 {
-	return rt->rt6i_flags & RTF_GATEWAY ||
+	return rt->fib6_flags & RTF_GATEWAY ||
 	       mlxsw_sp_nexthop6_ipip_type(mlxsw_sp, rt, NULL);
 }
 
@@ -5092,9 +5092,9 @@ static void mlxsw_sp_fib6_entry_type_set(struct mlxsw_sp *mlxsw_sp,
 	 * local, which will cause them to be trapped with a lower
 	 * priority than packets that need to be locally received.
 	 */
-	if (rt->rt6i_flags & (RTF_LOCAL | RTF_ANYCAST))
+	if (rt->fib6_flags & (RTF_LOCAL | RTF_ANYCAST))
 		fib_entry->type = MLXSW_SP_FIB_ENTRY_TYPE_TRAP;
-	else if (rt->rt6i_flags & RTF_REJECT)
+	else if (rt->fib6_flags & RTF_REJECT)
 		fib_entry->type = MLXSW_SP_FIB_ENTRY_TYPE_LOCAL;
 	else if (mlxsw_sp_rt6_is_gateway(mlxsw_sp, rt))
 		fib_entry->type = MLXSW_SP_FIB_ENTRY_TYPE_REMOTE;
@@ -5175,18 +5175,18 @@ mlxsw_sp_fib6_node_entry_find(const struct mlxsw_sp_fib_node *fib_node,
 	list_for_each_entry(fib6_entry, &fib_node->entry_list, common.list) {
 		struct fib6_info *rt = mlxsw_sp_fib6_entry_rt(fib6_entry);
 
-		if (rt->rt6i_table->tb6_id > nrt->rt6i_table->tb6_id)
+		if (rt->fib6_table->tb6_id > nrt->fib6_table->tb6_id)
 			continue;
-		if (rt->rt6i_table->tb6_id != nrt->rt6i_table->tb6_id)
+		if (rt->fib6_table->tb6_id != nrt->fib6_table->tb6_id)
 			break;
-		if (replace && rt->rt6i_metric == nrt->rt6i_metric) {
+		if (replace && rt->fib6_metric == nrt->fib6_metric) {
 			if (mlxsw_sp_fib6_rt_can_mp(rt) ==
 			    mlxsw_sp_fib6_rt_can_mp(nrt))
 				return fib6_entry;
 			if (mlxsw_sp_fib6_rt_can_mp(nrt))
 				fallback = fallback ?: fib6_entry;
 		}
-		if (rt->rt6i_metric > nrt->rt6i_metric)
+		if (rt->fib6_metric > nrt->fib6_metric)
 			return fallback ?: fib6_entry;
 	}
 
@@ -5215,7 +5215,7 @@ mlxsw_sp_fib6_node_list_insert(struct mlxsw_sp_fib6_entry *new6_entry,
 		list_for_each_entry(last, &fib_node->entry_list, common.list) {
 			struct fib6_info *rt = mlxsw_sp_fib6_entry_rt(last);
 
-			if (nrt->rt6i_table->tb6_id > rt->rt6i_table->tb6_id)
+			if (nrt->fib6_table->tb6_id > rt->fib6_table->tb6_id)
 				break;
 			fib6_entry = last;
 		}
@@ -5275,22 +5275,22 @@ mlxsw_sp_fib6_entry_lookup(struct mlxsw_sp *mlxsw_sp,
 	struct mlxsw_sp_fib *fib;
 	struct mlxsw_sp_vr *vr;
 
-	vr = mlxsw_sp_vr_find(mlxsw_sp, rt->rt6i_table->tb6_id);
+	vr = mlxsw_sp_vr_find(mlxsw_sp, rt->fib6_table->tb6_id);
 	if (!vr)
 		return NULL;
 	fib = mlxsw_sp_vr_fib(vr, MLXSW_SP_L3_PROTO_IPV6);
 
-	fib_node = mlxsw_sp_fib_node_lookup(fib, &rt->rt6i_dst.addr,
-					    sizeof(rt->rt6i_dst.addr),
-					    rt->rt6i_dst.plen);
+	fib_node = mlxsw_sp_fib_node_lookup(fib, &rt->fib6_dst.addr,
+					    sizeof(rt->fib6_dst.addr),
+					    rt->fib6_dst.plen);
 	if (!fib_node)
 		return NULL;
 
 	list_for_each_entry(fib6_entry, &fib_node->entry_list, common.list) {
 		struct fib6_info *iter_rt = mlxsw_sp_fib6_entry_rt(fib6_entry);
 
-		if (rt->rt6i_table->tb6_id == iter_rt->rt6i_table->tb6_id &&
-		    rt->rt6i_metric == iter_rt->rt6i_metric &&
+		if (rt->fib6_table->tb6_id == iter_rt->fib6_table->tb6_id &&
+		    rt->fib6_metric == iter_rt->fib6_metric &&
 		    mlxsw_sp_fib6_entry_rt_find(fib6_entry, rt))
 			return fib6_entry;
 	}
@@ -5325,16 +5325,16 @@ static int mlxsw_sp_router_fib6_add(struct mlxsw_sp *mlxsw_sp,
 	if (mlxsw_sp->router->aborted)
 		return 0;
 
-	if (rt->rt6i_src.plen)
+	if (rt->fib6_src.plen)
 		return -EINVAL;
 
 	if (mlxsw_sp_fib6_rt_should_ignore(rt))
 		return 0;
 
-	fib_node = mlxsw_sp_fib_node_get(mlxsw_sp, rt->rt6i_table->tb6_id,
-					 &rt->rt6i_dst.addr,
-					 sizeof(rt->rt6i_dst.addr),
-					 rt->rt6i_dst.plen,
+	fib_node = mlxsw_sp_fib_node_get(mlxsw_sp, rt->fib6_table->tb6_id,
+					 &rt->fib6_dst.addr,
+					 sizeof(rt->fib6_dst.addr),
+					 rt->fib6_dst.plen,
 					 MLXSW_SP_L3_PROTO_IPV6);
 	if (IS_ERR(fib_node))
 		return PTR_ERR(fib_node);

include/net/if_inet6.h

@@ -143,7 +143,6 @@ struct ipv6_ac_socklist {
 
 struct ifacaddr6 {
 	struct in6_addr		aca_addr;
-	struct inet6_dev	*aca_idev;
 	struct fib6_info	*aca_rt;
 	struct ifacaddr6	*aca_next;
 	int			aca_users;

include/net/ip6_fib.h

@@ -134,34 +134,33 @@ struct fib6_nh {
 };
 
 struct fib6_info {
-	struct fib6_table		*rt6i_table;
+	struct fib6_table		*fib6_table;
 	struct fib6_info __rcu		*rt6_next;
-	struct fib6_node __rcu		*rt6i_node;
+	struct fib6_node __rcu		*fib6_node;
 
 	/* Multipath routes:
 	 * siblings is a list of fib6_info that have the the same metric/weight,
 	 * destination, but not the same gateway. nsiblings is just a cache
 	 * to speed up lookup.
 	 */
-	struct list_head		rt6i_siblings;
-	unsigned int			rt6i_nsiblings;
+	struct list_head		fib6_siblings;
+	unsigned int			fib6_nsiblings;
 
-	atomic_t			rt6i_ref;
-	struct inet6_dev		*rt6i_idev;
+	atomic_t			fib6_ref;
 	unsigned long			expires;
 	struct dst_metrics		*fib6_metrics;
 #define fib6_pmtu		fib6_metrics->metrics[RTAX_MTU-1]
 
-	struct rt6key			rt6i_dst;
-	u32				rt6i_flags;
-	struct rt6key			rt6i_src;
-	struct rt6key			rt6i_prefsrc;
+	struct rt6key			fib6_dst;
+	u32				fib6_flags;
+	struct rt6key			fib6_src;
+	struct rt6key			fib6_prefsrc;
 
 	struct rt6_info * __percpu	*rt6i_pcpu;
 	struct rt6_exception_bucket __rcu *rt6i_exception_bucket;
 
-	u32				rt6i_metric;
-	u8				rt6i_protocol;
+	u32				fib6_metric;
+	u8				fib6_protocol;
 	u8				fib6_type;
 	u8				exception_bucket_flushed:1,
 					should_flush:1,
@@ -206,7 +205,7 @@ static inline struct inet6_dev *ip6_dst_idev(struct dst_entry *dst)
 
 static inline void fib6_clean_expires(struct fib6_info *f6i)
 {
-	f6i->rt6i_flags &= ~RTF_EXPIRES;
+	f6i->fib6_flags &= ~RTF_EXPIRES;
 	f6i->expires = 0;
 }
 
@@ -214,12 +213,12 @@ static inline void fib6_set_expires(struct fib6_info *f6i,
 				    unsigned long expires)
 {
 	f6i->expires = expires;
-	f6i->rt6i_flags |= RTF_EXPIRES;
+	f6i->fib6_flags |= RTF_EXPIRES;
 }
 
 static inline bool fib6_check_expired(const struct fib6_info *f6i)
 {
-	if (f6i->rt6i_flags & RTF_EXPIRES)
+	if (f6i->fib6_flags & RTF_EXPIRES)
 		return time_after(jiffies, f6i->expires);
 	return false;
 }
@@ -250,14 +249,14 @@ static inline void rt6_update_expires(struct rt6_info *rt0, int timeout)
  * Return true if we can get cookie safely
  * Return false if not
  */
-static inline bool rt6_get_cookie_safe(const struct fib6_info *rt,
+static inline bool rt6_get_cookie_safe(const struct fib6_info *f6i,
 				       u32 *cookie)
 {
 	struct fib6_node *fn;
 	bool status = false;
 
 	rcu_read_lock();
-	fn = rcu_dereference(rt->rt6i_node);
+	fn = rcu_dereference(f6i->fib6_node);
 
 	if (fn) {
 		*cookie = fn->fn_sernum;
@@ -295,12 +294,12 @@ void fib6_info_destroy(struct fib6_info *f6i);
 
 static inline void fib6_info_hold(struct fib6_info *f6i)
 {
-	atomic_inc(&f6i->rt6i_ref);
+	atomic_inc(&f6i->fib6_ref);
 }
 
 static inline void fib6_info_release(struct fib6_info *f6i)
 {
-	if (f6i && atomic_dec_and_test(&f6i->rt6i_ref))
+	if (f6i && atomic_dec_and_test(&f6i->fib6_ref))
 		fib6_info_destroy(f6i);
 }
 
@@ -410,6 +409,11 @@ int fib6_add(struct fib6_node *root, struct fib6_info *rt,
 	     struct nl_info *info, struct netlink_ext_ack *extack);
 int fib6_del(struct fib6_info *rt, struct nl_info *info);
 
+static inline struct net_device *fib6_info_nh_dev(const struct fib6_info *f6i)
+{
+	return f6i->fib6_nh.nh_dev;
+}
+
 void inet6_rt_notify(int event, struct fib6_info *rt, struct nl_info *info,
 		     unsigned int flags);
 

include/net/ip6_route.h

@@ -66,9 +66,9 @@ static inline bool rt6_need_strict(const struct in6_addr *daddr)
 		(IPV6_ADDR_MULTICAST | IPV6_ADDR_LINKLOCAL | IPV6_ADDR_LOOPBACK);
 }
 
-static inline bool rt6_qualify_for_ecmp(const struct fib6_info *rt)
+static inline bool rt6_qualify_for_ecmp(const struct fib6_info *f6i)
 {
-	return (rt->rt6i_flags & (RTF_GATEWAY|RTF_ADDRCONF|RTF_DYNAMIC)) ==
+	return (f6i->fib6_flags & (RTF_GATEWAY|RTF_ADDRCONF|RTF_DYNAMIC)) ==
 	       RTF_GATEWAY;
 }
 
@@ -102,26 +102,27 @@ int ipv6_route_ioctl(struct net *net, unsigned int cmd, void __user *arg);
 
 int ip6_route_add(struct fib6_config *cfg, gfp_t gfp_flags,
 		  struct netlink_ext_ack *extack);
-int ip6_ins_rt(struct net *net, struct fib6_info *rt);
-int ip6_del_rt(struct net *net, struct fib6_info *rt);
+int ip6_ins_rt(struct net *net, struct fib6_info *f6i);
+int ip6_del_rt(struct net *net, struct fib6_info *f6i);
 
-void rt6_flush_exceptions(struct fib6_info *rt);
-void rt6_age_exceptions(struct fib6_info *rt, struct fib6_gc_args *gc_args,
+void rt6_flush_exceptions(struct fib6_info *f6i);
+void rt6_age_exceptions(struct fib6_info *f6i, struct fib6_gc_args *gc_args,
 			unsigned long now);
 
-static inline int ip6_route_get_saddr(struct net *net, struct fib6_info *rt,
+static inline int ip6_route_get_saddr(struct net *net, struct fib6_info *f6i,
 				      const struct in6_addr *daddr,
 				      unsigned int prefs,
 				      struct in6_addr *saddr)
 {
-	struct inet6_dev *idev = rt ? rt->rt6i_idev : NULL;
 	int err = 0;
 
-	if (rt && rt->rt6i_prefsrc.plen)
-		*saddr = rt->rt6i_prefsrc.addr;
-	else
-		err = ipv6_dev_get_saddr(net, idev ? idev->dev : NULL,
-					 daddr, prefs, saddr);
+	if (f6i && f6i->fib6_prefsrc.plen) {
+		*saddr = f6i->fib6_prefsrc.addr;
+	} else {
+		struct net_device *dev = f6i ? fib6_info_nh_dev(f6i) : NULL;
+
+		err = ipv6_dev_get_saddr(net, dev, daddr, prefs, saddr);
+	}
 
 	return err;
 }
@@ -136,7 +137,7 @@ struct dst_entry *icmp6_dst_alloc(struct net_device *dev, struct flowi6 *fl6);
 
 void fib6_force_start_gc(struct net *net);
 
-struct fib6_info *addrconf_dst_alloc(struct net *net, struct inet6_dev *idev,
+struct fib6_info *addrconf_f6i_alloc(struct net *net, struct inet6_dev *idev,
 				     const struct in6_addr *addr, bool anycast,
 				     gfp_t gfp_flags);
 
@@ -176,14 +177,14 @@ struct rt6_rtnl_dump_arg {
 	struct net *net;
 };
 
-int rt6_dump_route(struct fib6_info *rt, void *p_arg);
+int rt6_dump_route(struct fib6_info *f6i, void *p_arg);
 void rt6_mtu_change(struct net_device *dev, unsigned int mtu);
 void rt6_remove_prefsrc(struct inet6_ifaddr *ifp);
 void rt6_clean_tohost(struct net *net, struct in6_addr *gateway);
 void rt6_sync_up(struct net_device *dev, unsigned int nh_flags);
 void rt6_disable_ip(struct net_device *dev, unsigned long event);
 void rt6_sync_down_dev(struct net_device *dev, unsigned long event);
-void rt6_multipath_rebalance(struct fib6_info *rt);
+void rt6_multipath_rebalance(struct fib6_info *f6i);
 
 void rt6_uncached_list_add(struct rt6_info *rt);
 void rt6_uncached_list_del(struct rt6_info *rt);
@@ -274,7 +275,6 @@ static inline struct in6_addr *rt6_nexthop(struct rt6_info *rt,
 static inline bool rt6_duplicate_nexthop(struct fib6_info *a, struct fib6_info *b)
 {
 	return a->fib6_nh.nh_dev == b->fib6_nh.nh_dev &&
-	       a->rt6i_idev == b->rt6i_idev &&
 	       ipv6_addr_equal(&a->fib6_nh.nh_gw, &b->fib6_nh.nh_gw) &&
 	       !lwtunnel_cmp_encap(a->fib6_nh.nh_lwtstate, b->fib6_nh.nh_lwtstate);
 }

net/ipv6/addrconf.c

@@ -994,7 +994,7 @@ ipv6_add_addr(struct inet6_dev *idev, const struct in6_addr *addr,
 	gfp_t gfp_flags = can_block ? GFP_KERNEL : GFP_ATOMIC;
 	struct net *net = dev_net(idev->dev);
 	struct inet6_ifaddr *ifa = NULL;
-	struct fib6_info *rt = NULL;
+	struct fib6_info *f6i = NULL;
 	int err = 0;
 	int addr_type = ipv6_addr_type(addr);
 
@@ -1036,16 +1036,16 @@ ipv6_add_addr(struct inet6_dev *idev, const struct in6_addr *addr,
 		goto out;
 	}
 
-	rt = addrconf_dst_alloc(net, idev, addr, false, gfp_flags);
-	if (IS_ERR(rt)) {
-		err = PTR_ERR(rt);
-		rt = NULL;
+	f6i = addrconf_f6i_alloc(net, idev, addr, false, gfp_flags);
+	if (IS_ERR(f6i)) {
+		err = PTR_ERR(f6i);
+		f6i = NULL;
 		goto out;
 	}
 
 	if (net->ipv6.devconf_all->disable_policy ||
 	    idev->cnf.disable_policy)
-		rt->dst_nopolicy = true;
+		f6i->dst_nopolicy = true;
 
 	neigh_parms_data_state_setall(idev->nd_parms);
 
@@ -1067,7 +1067,7 @@ ipv6_add_addr(struct inet6_dev *idev, const struct in6_addr *addr,
 	ifa->cstamp = ifa->tstamp = jiffies;
 	ifa->tokenized = false;
 
-	ifa->rt = rt;
+	ifa->rt = f6i;
 
 	ifa->idev = idev;
 	in6_dev_hold(idev);
@@ -1101,7 +1101,7 @@ ipv6_add_addr(struct inet6_dev *idev, const struct in6_addr *addr,
 	inet6addr_notifier_call_chain(NETDEV_UP, ifa);
 out:
 	if (unlikely(err < 0)) {
-		fib6_info_release(rt);
+		fib6_info_release(f6i);
 
 		if (ifa) {
 			if (ifa->idev)
@@ -1178,19 +1178,19 @@ check_cleanup_prefix_route(struct inet6_ifaddr *ifp, unsigned long *expires)
 static void
 cleanup_prefix_route(struct inet6_ifaddr *ifp, unsigned long expires, bool del_rt)
 {
-	struct fib6_info *rt;
+	struct fib6_info *f6i;
 
-	rt = addrconf_get_prefix_route(&ifp->addr,
+	f6i = addrconf_get_prefix_route(&ifp->addr,
 				       ifp->prefix_len,
 				       ifp->idev->dev,
 				       0, RTF_GATEWAY | RTF_DEFAULT);
-	if (rt) {
+	if (f6i) {
 		if (del_rt)
-			ip6_del_rt(dev_net(ifp->idev->dev), rt);
+			ip6_del_rt(dev_net(ifp->idev->dev), f6i);
 		else {
-			if (!(rt->rt6i_flags & RTF_EXPIRES))
-				fib6_set_expires(rt, expires);
-			fib6_info_release(rt);
+			if (!(f6i->fib6_flags & RTF_EXPIRES))
+				fib6_set_expires(f6i, expires);
+			fib6_info_release(f6i);
 		}
 	}
 }
@@ -2370,9 +2370,9 @@ static struct fib6_info *addrconf_get_prefix_route(const struct in6_addr *pfx,
 	for_each_fib6_node_rt_rcu(fn) {
 		if (rt->fib6_nh.nh_dev->ifindex != dev->ifindex)
 			continue;
-		if ((rt->rt6i_flags & flags) != flags)
+		if ((rt->fib6_flags & flags) != flags)
 			continue;
-		if ((rt->rt6i_flags & noflags) != 0)
+		if ((rt->fib6_flags & noflags) != 0)
 			continue;
 		fib6_info_hold(rt);
 		break;
@@ -3245,7 +3245,7 @@ static void addrconf_addr_gen(struct inet6_dev *idev, bool prefix_route)
 			addrconf_add_linklocal(idev, &addr, 0);
 		else if (prefix_route)
 			addrconf_prefix_route(&addr, 64, idev->dev,
-					      0, 0, GFP_ATOMIC);
+					      0, 0, GFP_KERNEL);
 		break;
 	case IN6_ADDR_GEN_MODE_NONE:
 	default:
@@ -3341,22 +3341,22 @@ static int fixup_permanent_addr(struct net *net,
 				struct inet6_dev *idev,
 				struct inet6_ifaddr *ifp)
 {
-	/* !rt6i_node means the host route was removed from the
+	/* !fib6_node means the host route was removed from the
 	 * FIB, for example, if 'lo' device is taken down. In that
 	 * case regenerate the host route.
 	 */
-	if (!ifp->rt || !ifp->rt->rt6i_node) {
-		struct fib6_info *rt, *prev;
+	if (!ifp->rt || !ifp->rt->fib6_node) {
+		struct fib6_info *f6i, *prev;
 
-		rt = addrconf_dst_alloc(net, idev, &ifp->addr, false,
-					GFP_ATOMIC);
-		if (IS_ERR(rt))
-			return PTR_ERR(rt);
+		f6i = addrconf_f6i_alloc(net, idev, &ifp->addr, false,
+					 GFP_ATOMIC);
+		if (IS_ERR(f6i))
+			return PTR_ERR(f6i);
 
 		/* ifp->rt can be accessed outside of rtnl */
 		spin_lock(&ifp->lock);
 		prev = ifp->rt;
-		ifp->rt = rt;
+		ifp->rt = f6i;
 		spin_unlock(&ifp->lock);
 
 		fib6_info_release(prev);
@@ -4817,9 +4817,10 @@ static int inet6_fill_ifmcaddr(struct sk_buff *skb, struct ifmcaddr6 *ifmca,
 static int inet6_fill_ifacaddr(struct sk_buff *skb, struct ifacaddr6 *ifaca,
 				u32 portid, u32 seq, int event, unsigned int flags)
 {
+	struct net_device *dev = fib6_info_nh_dev(ifaca->aca_rt);
+	int ifindex = dev ? dev->ifindex : 1;
 	struct nlmsghdr  *nlh;
 	u8 scope = RT_SCOPE_UNIVERSE;
-	int ifindex = ifaca->aca_idev->dev->ifindex;
 
 	if (ipv6_addr_scope(&ifaca->aca_addr) & IFA_SITE)
 		scope = RT_SCOPE_SITE;
@@ -5612,14 +5613,14 @@ static void __ipv6_ifa_notify(int event, struct inet6_ifaddr *ifp)
 		 * our DAD process, so we don't need
 		 * to do it again
 		 */
-		if (!rcu_access_pointer(ifp->rt->rt6i_node))
+		if (!rcu_access_pointer(ifp->rt->fib6_node))
 			ip6_ins_rt(net, ifp->rt);
 		if (ifp->idev->cnf.forwarding)
 			addrconf_join_anycast(ifp);
 		if (!ipv6_addr_any(&ifp->peer_addr))
 			addrconf_prefix_route(&ifp->peer_addr, 128,
 					      ifp->idev->dev, 0, 0,
-					      GFP_KERNEL);
+					      GFP_ATOMIC);
 		break;
 	case RTM_DELADDR:
 		if (ifp->idev->cnf.forwarding)

net/ipv6/anycast.c

@@ -212,16 +212,14 @@ static void aca_get(struct ifacaddr6 *aca)
 static void aca_put(struct ifacaddr6 *ac)
 {
 	if (refcount_dec_and_test(&ac->aca_refcnt)) {
-		in6_dev_put(ac->aca_idev);
 		fib6_info_release(ac->aca_rt);
 		kfree(ac);
 	}
 }
 
-static struct ifacaddr6 *aca_alloc(struct fib6_info *rt,
+static struct ifacaddr6 *aca_alloc(struct fib6_info *f6i,
 				   const struct in6_addr *addr)
 {
-	struct inet6_dev *idev = rt->rt6i_idev;
 	struct ifacaddr6 *aca;
 
 	aca = kzalloc(sizeof(*aca), GFP_ATOMIC);
@@ -229,10 +227,8 @@ static struct ifacaddr6 *aca_alloc(struct fib6_info *rt,
 		return NULL;
 
 	aca->aca_addr = *addr;
-	in6_dev_hold(idev);
-	aca->aca_idev = idev;
-	fib6_info_hold(rt);
-	aca->aca_rt = rt;
+	fib6_info_hold(f6i);
+	aca->aca_rt = f6i;
 	aca->aca_users = 1;
 	/* aca_tstamp should be updated upon changes */
 	aca->aca_cstamp = aca->aca_tstamp = jiffies;
@@ -247,7 +243,7 @@ static struct ifacaddr6 *aca_alloc(struct fib6_info *rt,
 int __ipv6_dev_ac_inc(struct inet6_dev *idev, const struct in6_addr *addr)
 {
 	struct ifacaddr6 *aca;
-	struct fib6_info *rt;
+	struct fib6_info *f6i;
 	struct net *net;
 	int err;
 
@@ -268,14 +264,14 @@ int __ipv6_dev_ac_inc(struct inet6_dev *idev, const struct in6_addr *addr)
 	}
 
 	net = dev_net(idev->dev);
-	rt = addrconf_dst_alloc(net, idev, addr, true, GFP_ATOMIC);
-	if (IS_ERR(rt)) {
-		err = PTR_ERR(rt);
+	f6i = addrconf_f6i_alloc(net, idev, addr, true, GFP_ATOMIC);
+	if (IS_ERR(f6i)) {
+		err = PTR_ERR(f6i);
 		goto out;
 	}
-	aca = aca_alloc(rt, addr);
+	aca = aca_alloc(f6i, addr);
 	if (!aca) {
-		fib6_info_release(rt);
+		fib6_info_release(f6i);
 		err = -ENOMEM;
 		goto out;
 	}
@@ -289,7 +285,7 @@ int __ipv6_dev_ac_inc(struct inet6_dev *idev, const struct in6_addr *addr)
 	aca_get(aca);
 	write_unlock_bh(&idev->lock);
 
-	ip6_ins_rt(net, rt);
+	ip6_ins_rt(net, f6i);
 
 	addrconf_join_solict(idev->dev, &aca->aca_addr);
 

net/ipv6/ip6_fib.c

@@ -105,12 +105,12 @@ enum {
 	FIB6_NO_SERNUM_CHANGE = 0,
 };
 
-void fib6_update_sernum(struct net *net, struct fib6_info *rt)
+void fib6_update_sernum(struct net *net, struct fib6_info *f6i)
 {
 	struct fib6_node *fn;
 
-	fn = rcu_dereference_protected(rt->rt6i_node,
-			lockdep_is_held(&rt->rt6i_table->tb6_lock));
+	fn = rcu_dereference_protected(f6i->fib6_node,
+			lockdep_is_held(&f6i->fib6_table->tb6_lock));
 	if (fn)
 		fn->fn_sernum = fib6_new_sernum(net);
 }
@@ -159,10 +159,10 @@ struct fib6_info *fib6_info_alloc(gfp_t gfp_flags)
 		return NULL;
 	}
 
-	INIT_LIST_HEAD(&f6i->rt6i_siblings);
+	INIT_LIST_HEAD(&f6i->fib6_siblings);
 	f6i->fib6_metrics = (struct dst_metrics *)&dst_default_metrics;
 
-	atomic_inc(&f6i->rt6i_ref);
+	atomic_inc(&f6i->fib6_ref);
 
 	return f6i;
 }
@@ -172,7 +172,7 @@ void fib6_info_destroy(struct fib6_info *f6i)
 	struct rt6_exception_bucket *bucket;
 	struct dst_metrics *m;
 
-	WARN_ON(f6i->rt6i_node);
+	WARN_ON(f6i->fib6_node);
 
 	bucket = rcu_dereference_protected(f6i->rt6i_exception_bucket, 1);
 	if (bucket) {
@@ -197,8 +197,6 @@ void fib6_info_destroy(struct fib6_info *f6i)
 		}
 	}
 
-	if (f6i->rt6i_idev)
-		in6_dev_put(f6i->rt6i_idev);
 	if (f6i->fib6_nh.nh_dev)
 		dev_put(f6i->fib6_nh.nh_dev);
 
@@ -401,7 +399,7 @@ static int call_fib6_entry_notifiers(struct net *net,
 		.rt = rt,
 	};
 
-	rt->rt6i_table->fib_seq++;
+	rt->fib6_table->fib_seq++;
 	return call_fib6_notifiers(net, event_type, &info.info);
 }
 
@@ -483,10 +481,10 @@ static int fib6_dump_node(struct fib6_walker *w)
 		 * last sibling of this route (no need to dump the
 		 * sibling routes again)
 		 */
-		if (rt->rt6i_nsiblings)
-			rt = list_last_entry(&rt->rt6i_siblings,
+		if (rt->fib6_nsiblings)
+			rt = list_last_entry(&rt->fib6_siblings,
 					     struct fib6_info,
-					     rt6i_siblings);
+					     fib6_siblings);
 	}
 	w->leaf = NULL;
 	return 0;
@@ -810,7 +808,7 @@ insert_above:
 		RCU_INIT_POINTER(in->parent, pn);
 		in->leaf = fn->leaf;
 		atomic_inc(&rcu_dereference_protected(in->leaf,
-				lockdep_is_held(&table->tb6_lock))->rt6i_ref);
+				lockdep_is_held(&table->tb6_lock))->fib6_ref);
 
 		/* update parent pointer */
 		if (dir)
@@ -865,9 +863,9 @@ insert_above:
 static void fib6_purge_rt(struct fib6_info *rt, struct fib6_node *fn,
 			  struct net *net)
 {
-	struct fib6_table *table = rt->rt6i_table;
+	struct fib6_table *table = rt->fib6_table;
 
-	if (atomic_read(&rt->rt6i_ref) != 1) {
+	if (atomic_read(&rt->fib6_ref) != 1) {
 		/* This route is used as dummy address holder in some split
 		 * nodes. It is not leaked, but it still holds other resources,
 		 * which must be released in time. So, scan ascendant nodes
@@ -880,7 +878,7 @@ static void fib6_purge_rt(struct fib6_info *rt, struct fib6_node *fn,
 			struct fib6_info *new_leaf;
 			if (!(fn->fn_flags & RTN_RTINFO) && leaf == rt) {
 				new_leaf = fib6_find_prefix(net, table, fn);
-				atomic_inc(&new_leaf->rt6i_ref);
+				atomic_inc(&new_leaf->fib6_ref);
 
 				rcu_assign_pointer(fn->leaf, new_leaf);
 				fib6_info_release(rt);
@@ -919,7 +917,7 @@ static int fib6_add_rt2node(struct fib6_node *fn, struct fib6_info *rt,
 			    struct netlink_ext_ack *extack)
 {
 	struct fib6_info *leaf = rcu_dereference_protected(fn->leaf,
-				    lockdep_is_held(&rt->rt6i_table->tb6_lock));
+				    lockdep_is_held(&rt->fib6_table->tb6_lock));
 	struct fib6_info *iter = NULL;
 	struct fib6_info __rcu **ins;
 	struct fib6_info __rcu **fallback_ins = NULL;
@@ -939,12 +937,12 @@ static int fib6_add_rt2node(struct fib6_node *fn, struct fib6_info *rt,
 
 	for (iter = leaf; iter;
 	     iter = rcu_dereference_protected(iter->rt6_next,
-				lockdep_is_held(&rt->rt6i_table->tb6_lock))) {
+				lockdep_is_held(&rt->fib6_table->tb6_lock))) {
 		/*
 		 *	Search for duplicates
 		 */
 
-		if (iter->rt6i_metric == rt->rt6i_metric) {
+		if (iter->fib6_metric == rt->fib6_metric) {
 			/*
 			 *	Same priority level
 			 */
@@ -964,11 +962,11 @@ static int fib6_add_rt2node(struct fib6_node *fn, struct fib6_info *rt,
 			}
 
 			if (rt6_duplicate_nexthop(iter, rt)) {
-				if (rt->rt6i_nsiblings)
-					rt->rt6i_nsiblings = 0;
-				if (!(iter->rt6i_flags & RTF_EXPIRES))
+				if (rt->fib6_nsiblings)
+					rt->fib6_nsiblings = 0;
+				if (!(iter->fib6_flags & RTF_EXPIRES))
 					return -EEXIST;
-				if (!(rt->rt6i_flags & RTF_EXPIRES))
+				if (!(rt->fib6_flags & RTF_EXPIRES))
 					fib6_clean_expires(iter);
 				else
 					fib6_set_expires(iter, rt->expires);
@@ -988,10 +986,10 @@ static int fib6_add_rt2node(struct fib6_node *fn, struct fib6_info *rt,
 			 */
 			if (rt_can_ecmp &&
 			    rt6_qualify_for_ecmp(iter))
-				rt->rt6i_nsiblings++;
+				rt->fib6_nsiblings++;
 		}
 
-		if (iter->rt6i_metric > rt->rt6i_metric)
+		if (iter->fib6_metric > rt->fib6_metric)
 			break;
 
 next_iter:
@@ -1002,7 +1000,7 @@ next_iter:
 		/* No ECMP-able route found, replace first non-ECMP one */
 		ins = fallback_ins;
 		iter = rcu_dereference_protected(*ins,
-				    lockdep_is_held(&rt->rt6i_table->tb6_lock));
+				    lockdep_is_held(&rt->fib6_table->tb6_lock));
 		found++;
 	}
 
@@ -1011,34 +1009,34 @@ next_iter:
 		fn->rr_ptr = NULL;
 
 	/* Link this route to others same route. */
-	if (rt->rt6i_nsiblings) {
-		unsigned int rt6i_nsiblings;
+	if (rt->fib6_nsiblings) {
+		unsigned int fib6_nsiblings;
 		struct fib6_info *sibling, *temp_sibling;
 
 		/* Find the first route that have the same metric */
 		sibling = leaf;
 		while (sibling) {
-			if (sibling->rt6i_metric == rt->rt6i_metric &&
+			if (sibling->fib6_metric == rt->fib6_metric &&
 			    rt6_qualify_for_ecmp(sibling)) {
-				list_add_tail(&rt->rt6i_siblings,
-					      &sibling->rt6i_siblings);
+				list_add_tail(&rt->fib6_siblings,
+					      &sibling->fib6_siblings);
 				break;
 			}
 			sibling = rcu_dereference_protected(sibling->rt6_next,
-				    lockdep_is_held(&rt->rt6i_table->tb6_lock));
+				    lockdep_is_held(&rt->fib6_table->tb6_lock));
 		}
 		/* For each sibling in the list, increment the counter of
 		 * siblings. BUG() if counters does not match, list of siblings
 		 * is broken!
 		 */
-		rt6i_nsiblings = 0;
+		fib6_nsiblings = 0;
 		list_for_each_entry_safe(sibling, temp_sibling,
-					 &rt->rt6i_siblings, rt6i_siblings) {
-			sibling->rt6i_nsiblings++;
-			BUG_ON(sibling->rt6i_nsiblings != rt->rt6i_nsiblings);
-			rt6i_nsiblings++;
+					 &rt->fib6_siblings, fib6_siblings) {
+			sibling->fib6_nsiblings++;
+			BUG_ON(sibling->fib6_nsiblings != rt->fib6_nsiblings);
+			fib6_nsiblings++;
 		}
-		BUG_ON(rt6i_nsiblings != rt->rt6i_nsiblings);
+		BUG_ON(fib6_nsiblings != rt->fib6_nsiblings);
 		rt6_multipath_rebalance(temp_sibling);
 	}
 
@@ -1059,8 +1057,8 @@ add:
 			return err;
 
 		rcu_assign_pointer(rt->rt6_next, iter);
-		atomic_inc(&rt->rt6i_ref);
-		rcu_assign_pointer(rt->rt6i_node, fn);
+		atomic_inc(&rt->fib6_ref);
+		rcu_assign_pointer(rt->fib6_node, fn);
 		rcu_assign_pointer(*ins, rt);
 		if (!info->skip_notify)
 			inet6_rt_notify(RTM_NEWROUTE, rt, info, nlflags);
@@ -1087,8 +1085,8 @@ add:
 		if (err)
 			return err;
 
-		atomic_inc(&rt->rt6i_ref);
-		rcu_assign_pointer(rt->rt6i_node, fn);
+		atomic_inc(&rt->fib6_ref);
+		rcu_assign_pointer(rt->fib6_node, fn);
 		rt->rt6_next = iter->rt6_next;
 		rcu_assign_pointer(*ins, rt);
 		if (!info->skip_notify)
@@ -1097,8 +1095,8 @@ add:
 			info->nl_net->ipv6.rt6_stats->fib_route_nodes++;
 			fn->fn_flags |= RTN_RTINFO;
 		}
-		nsiblings = iter->rt6i_nsiblings;
-		iter->rt6i_node = NULL;
+		nsiblings = iter->fib6_nsiblings;
+		iter->fib6_node = NULL;
 		fib6_purge_rt(iter, fn, info->nl_net);
 		if (rcu_access_pointer(fn->rr_ptr) == iter)
 			fn->rr_ptr = NULL;
@@ -1108,13 +1106,13 @@ add:
 			/* Replacing an ECMP route, remove all siblings */
 			ins = &rt->rt6_next;
 			iter = rcu_dereference_protected(*ins,
-				    lockdep_is_held(&rt->rt6i_table->tb6_lock));
+				    lockdep_is_held(&rt->fib6_table->tb6_lock));
 			while (iter) {
-				if (iter->rt6i_metric > rt->rt6i_metric)
+				if (iter->fib6_metric > rt->fib6_metric)
 					break;
 				if (rt6_qualify_for_ecmp(iter)) {
 					*ins = iter->rt6_next;
-					iter->rt6i_node = NULL;
+					iter->fib6_node = NULL;
 					fib6_purge_rt(iter, fn, info->nl_net);
 					if (rcu_access_pointer(fn->rr_ptr) == iter)
 						fn->rr_ptr = NULL;
@@ -1125,7 +1123,7 @@ add:
 					ins = &iter->rt6_next;
 				}
 				iter = rcu_dereference_protected(*ins,
-					lockdep_is_held(&rt->rt6i_table->tb6_lock));
+					lockdep_is_held(&rt->fib6_table->tb6_lock));
 			}
 			WARN_ON(nsiblings != 0);
 		}
@@ -1137,7 +1135,7 @@ add:
 static void fib6_start_gc(struct net *net, struct fib6_info *rt)
 {
 	if (!timer_pending(&net->ipv6.ip6_fib_timer) &&
-	    (rt->rt6i_flags & RTF_EXPIRES))
+	    (rt->fib6_flags & RTF_EXPIRES))
 		mod_timer(&net->ipv6.ip6_fib_timer,
 			  jiffies + net->ipv6.sysctl.ip6_rt_gc_interval);
 }
@@ -1152,15 +1150,15 @@ void fib6_force_start_gc(struct net *net)
 static void __fib6_update_sernum_upto_root(struct fib6_info *rt,
 					   int sernum)
 {
-	struct fib6_node *fn = rcu_dereference_protected(rt->rt6i_node,
-				lockdep_is_held(&rt->rt6i_table->tb6_lock));
+	struct fib6_node *fn = rcu_dereference_protected(rt->fib6_node,
+				lockdep_is_held(&rt->fib6_table->tb6_lock));
 
 	/* paired with smp_rmb() in rt6_get_cookie_safe() */
 	smp_wmb();
 	while (fn) {
 		fn->fn_sernum = sernum;
 		fn = rcu_dereference_protected(fn->parent,
-				lockdep_is_held(&rt->rt6i_table->tb6_lock));
+				lockdep_is_held(&rt->fib6_table->tb6_lock));
 	}
 }
 
@@ -1179,7 +1177,7 @@ void fib6_update_sernum_upto_root(struct net *net, struct fib6_info *rt)
 int fib6_add(struct fib6_node *root, struct fib6_info *rt,
 	     struct nl_info *info, struct netlink_ext_ack *extack)
 {
-	struct fib6_table *table = rt->rt6i_table;
+	struct fib6_table *table = rt->fib6_table;
 	struct fib6_node *fn, *pn = NULL;
 	int err = -ENOMEM;
 	int allow_create = 1;
@@ -1196,8 +1194,8 @@ int fib6_add(struct fib6_node *root, struct fib6_info *rt,
 		pr_warn("RTM_NEWROUTE with no NLM_F_CREATE or NLM_F_REPLACE\n");
 
 	fn = fib6_add_1(info->nl_net, table, root,
-			&rt->rt6i_dst.addr, rt->rt6i_dst.plen,
-			offsetof(struct fib6_info, rt6i_dst), allow_create,
+			&rt->fib6_dst.addr, rt->fib6_dst.plen,
+			offsetof(struct fib6_info, fib6_dst), allow_create,
 			replace_required, extack);
 	if (IS_ERR(fn)) {
 		err = PTR_ERR(fn);
@@ -1208,7 +1206,7 @@ int fib6_add(struct fib6_node *root, struct fib6_info *rt,
 	pn = fn;
 
 #ifdef CONFIG_IPV6_SUBTREES
-	if (rt->rt6i_src.plen) {
+	if (rt->fib6_src.plen) {
 		struct fib6_node *sn;
 
 		if (!rcu_access_pointer(fn->subtree)) {
@@ -1229,7 +1227,7 @@ int fib6_add(struct fib6_node *root, struct fib6_info *rt,
 			if (!sfn)
 				goto failure;
 
-			atomic_inc(&info->nl_net->ipv6.fib6_null_entry->rt6i_ref);
+			atomic_inc(&info->nl_net->ipv6.fib6_null_entry->fib6_ref);
 			rcu_assign_pointer(sfn->leaf,
 					   info->nl_net->ipv6.fib6_null_entry);
 			sfn->fn_flags = RTN_ROOT;
@@ -1237,8 +1235,8 @@ int fib6_add(struct fib6_node *root, struct fib6_info *rt,
 			/* Now add the first leaf node to new subtree */
 
 			sn = fib6_add_1(info->nl_net, table, sfn,
-					&rt->rt6i_src.addr, rt->rt6i_src.plen,
-					offsetof(struct fib6_info, rt6i_src),
+					&rt->fib6_src.addr, rt->fib6_src.plen,
+					offsetof(struct fib6_info, fib6_src),
 					allow_create, replace_required, extack);
 
 			if (IS_ERR(sn)) {
@@ -1256,8 +1254,8 @@ int fib6_add(struct fib6_node *root, struct fib6_info *rt,
 			rcu_assign_pointer(fn->subtree, sfn);
 		} else {
 			sn = fib6_add_1(info->nl_net, table, FIB6_SUBTREE(fn),
-					&rt->rt6i_src.addr, rt->rt6i_src.plen,
-					offsetof(struct fib6_info, rt6i_src),
+					&rt->fib6_src.addr, rt->fib6_src.plen,
+					offsetof(struct fib6_info, fib6_src),
 					allow_create, replace_required, extack);
 
 			if (IS_ERR(sn)) {
@@ -1272,7 +1270,7 @@ int fib6_add(struct fib6_node *root, struct fib6_info *rt,
 				rcu_assign_pointer(fn->leaf,
 					    info->nl_net->ipv6.fib6_null_entry);
 			} else {
-				atomic_inc(&rt->rt6i_ref);
+				atomic_inc(&rt->fib6_ref);
 				rcu_assign_pointer(fn->leaf, rt);
 			}
 		}
@@ -1421,12 +1419,12 @@ struct fib6_node *fib6_lookup(struct fib6_node *root, const struct in6_addr *dad
 	struct fib6_node *fn;
 	struct lookup_args args[] = {
 		{
-			.offset = offsetof(struct fib6_info, rt6i_dst),
+			.offset = offsetof(struct fib6_info, fib6_dst),
 			.addr = daddr,
 		},
 #ifdef CONFIG_IPV6_SUBTREES
 		{
-			.offset = offsetof(struct fib6_info, rt6i_src),
+			.offset = offsetof(struct fib6_info, fib6_src),
 			.addr = saddr,
 		},
 #endif
@@ -1511,7 +1509,7 @@ struct fib6_node *fib6_locate(struct fib6_node *root,
 	struct fib6_node *fn;
 
 	fn = fib6_locate_1(root, daddr, dst_len,
-			   offsetof(struct fib6_info, rt6i_dst),
+			   offsetof(struct fib6_info, fib6_dst),
 			   exact_match);
 
 #ifdef CONFIG_IPV6_SUBTREES
@@ -1522,7 +1520,7 @@ struct fib6_node *fib6_locate(struct fib6_node *root,
 
 			if (subtree) {
 				fn = fib6_locate_1(subtree, saddr, src_len,
-					   offsetof(struct fib6_info, rt6i_src),
+					   offsetof(struct fib6_info, fib6_src),
 					   exact_match);
 			}
 		}
@@ -1706,7 +1704,7 @@ static void fib6_del_route(struct fib6_table *table, struct fib6_node *fn,
 
 	/* Unlink it */
 	*rtp = rt->rt6_next;
-	rt->rt6i_node = NULL;
+	rt->fib6_node = NULL;
 	net->ipv6.rt6_stats->fib_rt_entries--;
 	net->ipv6.rt6_stats->fib_discarded_routes++;
 
@@ -1718,14 +1716,14 @@ static void fib6_del_route(struct fib6_table *table, struct fib6_node *fn,
 		fn->rr_ptr = NULL;
 
 	/* Remove this entry from other siblings */
-	if (rt->rt6i_nsiblings) {
+	if (rt->fib6_nsiblings) {
 		struct fib6_info *sibling, *next_sibling;
 
 		list_for_each_entry_safe(sibling, next_sibling,
-					 &rt->rt6i_siblings, rt6i_siblings)
-			sibling->rt6i_nsiblings--;
-		rt->rt6i_nsiblings = 0;
-		list_del_init(&rt->rt6i_siblings);
+					 &rt->fib6_siblings, fib6_siblings)
+			sibling->fib6_nsiblings--;
+		rt->fib6_nsiblings = 0;
+		list_del_init(&rt->fib6_siblings);
 		rt6_multipath_rebalance(next_sibling);
 	}
 
@@ -1765,9 +1763,9 @@ static void fib6_del_route(struct fib6_table *table, struct fib6_node *fn,
 /* Need to own table->tb6_lock */
 int fib6_del(struct fib6_info *rt, struct nl_info *info)
 {
-	struct fib6_node *fn = rcu_dereference_protected(rt->rt6i_node,
-				    lockdep_is_held(&rt->rt6i_table->tb6_lock));
-	struct fib6_table *table = rt->rt6i_table;
+	struct fib6_node *fn = rcu_dereference_protected(rt->fib6_node,
+				    lockdep_is_held(&rt->fib6_table->tb6_lock));
+	struct fib6_table *table = rt->fib6_table;
 	struct net *net = info->nl_net;
 	struct fib6_info __rcu **rtp;
 	struct fib6_info __rcu **rtp_next;
@@ -1951,17 +1949,17 @@ static int fib6_clean_node(struct fib6_walker *w)
 #if RT6_DEBUG >= 2
 				pr_debug("%s: del failed: rt=%p@%p err=%d\n",
 					 __func__, rt,
-					 rcu_access_pointer(rt->rt6i_node),
+					 rcu_access_pointer(rt->fib6_node),
 					 res);
 #endif
 				continue;
 			}
 			return 0;
 		} else if (res == -2) {
-			if (WARN_ON(!rt->rt6i_nsiblings))
+			if (WARN_ON(!rt->fib6_nsiblings))
 				continue;
-			rt = list_last_entry(&rt->rt6i_siblings,
-					     struct fib6_info, rt6i_siblings);
+			rt = list_last_entry(&rt->fib6_siblings,
+					     struct fib6_info, fib6_siblings);
 			continue;
 		}
 		WARN_ON(res != 0);
@@ -2045,7 +2043,7 @@ static int fib6_age(struct fib6_info *rt, void *arg)
 	 *	Routes are expired even if they are in use.
 	 */
 
-	if (rt->rt6i_flags & RTF_EXPIRES && rt->expires) {
+	if (rt->fib6_flags & RTF_EXPIRES && rt->expires) {
 		if (time_after(now, rt->expires)) {
 			RT6_TRACE("expiring %p\n", rt);
 			return -1;
@@ -2243,22 +2241,22 @@ static int ipv6_route_seq_show(struct seq_file *seq, void *v)
 	struct ipv6_route_iter *iter = seq->private;
 	const struct net_device *dev;
 
-	seq_printf(seq, "%pi6 %02x ", &rt->rt6i_dst.addr, rt->rt6i_dst.plen);
+	seq_printf(seq, "%pi6 %02x ", &rt->fib6_dst.addr, rt->fib6_dst.plen);
 
 #ifdef CONFIG_IPV6_SUBTREES
-	seq_printf(seq, "%pi6 %02x ", &rt->rt6i_src.addr, rt->rt6i_src.plen);
+	seq_printf(seq, "%pi6 %02x ", &rt->fib6_src.addr, rt->fib6_src.plen);
 #else
 	seq_puts(seq, "00000000000000000000000000000000 00 ");
 #endif
-	if (rt->rt6i_flags & RTF_GATEWAY)
+	if (rt->fib6_flags & RTF_GATEWAY)
 		seq_printf(seq, "%pi6", &rt->fib6_nh.nh_gw);
 	else
 		seq_puts(seq, "00000000000000000000000000000000");
 
 	dev = rt->fib6_nh.nh_dev;
 	seq_printf(seq, " %08x %08x %08x %08x %8s\n",
-		   rt->rt6i_metric, atomic_read(&rt->rt6i_ref), 0,
-		   rt->rt6i_flags, dev ? dev->name : "");
+		   rt->fib6_metric, atomic_read(&rt->fib6_ref), 0,
+		   rt->fib6_flags, dev ? dev->name : "");
 	iter->w.leaf = NULL;
 	return 0;
 }

net/ipv6/ndisc.c

@@ -1318,7 +1318,7 @@ static void ndisc_router_discovery(struct sk_buff *skb)
 		}
 		neigh->flags |= NTF_ROUTER;
 	} else if (rt) {
-		rt->rt6i_flags = (rt->rt6i_flags & ~RTF_PREF_MASK) | RTF_PREF(pref);
+		rt->fib6_flags = (rt->fib6_flags & ~RTF_PREF_MASK) | RTF_PREF(pref);
 	}
 
 	if (rt)

net/ipv6/route.c

@@ -284,10 +284,10 @@ static const u32 ip6_template_metrics[RTAX_MAX] = {
 };
 
 static const struct fib6_info fib6_null_entry_template = {
-	.rt6i_flags	= (RTF_REJECT | RTF_NONEXTHOP),
-	.rt6i_protocol  = RTPROT_KERNEL,
-	.rt6i_metric	= ~(u32)0,
-	.rt6i_ref	= ATOMIC_INIT(1),
+	.fib6_flags	= (RTF_REJECT | RTF_NONEXTHOP),
+	.fib6_protocol  = RTPROT_KERNEL,
+	.fib6_metric	= ~(u32)0,
+	.fib6_ref	= ATOMIC_INIT(1),
 	.fib6_type	= RTN_UNREACHABLE,
 	.fib6_metrics	= (struct dst_metrics *)&dst_default_metrics,
 };
@@ -429,8 +429,8 @@ static struct fib6_info *rt6_multipath_select(const struct net *net,
 	if (fl6->mp_hash <= atomic_read(&match->fib6_nh.nh_upper_bound))
 		return match;
 
-	list_for_each_entry_safe(sibling, next_sibling, &match->rt6i_siblings,
-				 rt6i_siblings) {
+	list_for_each_entry_safe(sibling, next_sibling, &match->fib6_siblings,
+				 fib6_siblings) {
 		int nh_upper_bound;
 
 		nh_upper_bound = atomic_read(&sibling->fib6_nh.nh_upper_bound);
@@ -455,7 +455,6 @@ static inline struct fib6_info *rt6_device_match(struct net *net,
 						    int oif,
 						    int flags)
 {
-	struct fib6_info *local = NULL;
 	struct fib6_info *sprt;
 
 	if (!oif && ipv6_addr_any(saddr) &&
@@ -471,17 +470,6 @@ static inline struct fib6_info *rt6_device_match(struct net *net,
 		if (oif) {
 			if (dev->ifindex == oif)
 				return sprt;
-			if (dev->flags & IFF_LOOPBACK) {
-				if (!sprt->rt6i_idev ||
-				    sprt->rt6i_idev->dev->ifindex != oif) {
-					if (flags & RT6_LOOKUP_F_IFACE)
-						continue;
-					if (local &&
-					    local->rt6i_idev->dev->ifindex == oif)
-						continue;
-				}
-				local = sprt;
-			}
 		} else {
 			if (ipv6_chk_addr(net, saddr, dev,
 					  flags & RT6_LOOKUP_F_IFACE))
@@ -489,13 +477,8 @@ static inline struct fib6_info *rt6_device_match(struct net *net,
 		}
 	}
 
-	if (oif) {
-		if (local)
-			return local;
-
-		if (flags & RT6_LOOKUP_F_IFACE)
-			return net->ipv6.fib6_null_entry;
-	}
+	if (oif && flags & RT6_LOOKUP_F_IFACE)
+		return net->ipv6.fib6_null_entry;
 
 	return rt->fib6_nh.nh_flags & RTNH_F_DEAD ? net->ipv6.fib6_null_entry : rt;
 }
@@ -534,7 +517,7 @@ static void rt6_probe(struct fib6_info *rt)
 	 * Router Reachability Probe MUST be rate-limited
 	 * to no more than one per minute.
 	 */
-	if (!rt || !(rt->rt6i_flags & RTF_GATEWAY))
+	if (!rt || !(rt->fib6_flags & RTF_GATEWAY))
 		return;
 
 	nh_gw = &rt->fib6_nh.nh_gw;
@@ -542,15 +525,17 @@ static void rt6_probe(struct fib6_info *rt)
 	rcu_read_lock_bh();
 	neigh = __ipv6_neigh_lookup_noref(dev, nh_gw);
 	if (neigh) {
+		struct inet6_dev *idev;
+
 		if (neigh->nud_state & NUD_VALID)
 			goto out;
 
+		idev = __in6_dev_get(dev);
 		work = NULL;
 		write_lock(&neigh->lock);
 		if (!(neigh->nud_state & NUD_VALID) &&
 		    time_after(jiffies,
-			       neigh->updated +
-			       rt->rt6i_idev->cnf.rtr_probe_interval)) {
+			       neigh->updated + idev->cnf.rtr_probe_interval)) {
 			work = kmalloc(sizeof(*work), GFP_ATOMIC);
 			if (work)
 				__neigh_set_probe_once(neigh);
@@ -586,9 +571,6 @@ static inline int rt6_check_dev(struct fib6_info *rt, int oif)
 
 	if (!oif || dev->ifindex == oif)
 		return 2;
-	if ((dev->flags & IFF_LOOPBACK) &&
-	    rt->rt6i_idev && rt->rt6i_idev->dev->ifindex == oif)
-		return 1;
 	return 0;
 }
 
@@ -597,8 +579,8 @@ static inline enum rt6_nud_state rt6_check_neigh(struct fib6_info *rt)
 	enum rt6_nud_state ret = RT6_NUD_FAIL_HARD;
 	struct neighbour *neigh;
 
-	if (rt->rt6i_flags & RTF_NONEXTHOP ||
-	    !(rt->rt6i_flags & RTF_GATEWAY))
+	if (rt->fib6_flags & RTF_NONEXTHOP ||
+	    !(rt->fib6_flags & RTF_GATEWAY))
 		return RT6_NUD_SUCCEED;
 
 	rcu_read_lock_bh();
@@ -632,7 +614,7 @@ static int rt6_score_route(struct fib6_info *rt, int oif, int strict)
 	if (!m && (strict & RT6_LOOKUP_F_IFACE))
 		return RT6_NUD_FAIL_HARD;
 #ifdef CONFIG_IPV6_ROUTER_PREF
-	m |= IPV6_DECODE_PREF(IPV6_EXTRACT_PREF(rt->rt6i_flags)) << 2;
+	m |= IPV6_DECODE_PREF(IPV6_EXTRACT_PREF(rt->fib6_flags)) << 2;
 #endif
 	if (strict & RT6_LOOKUP_F_REACHABLE) {
 		int n = rt6_check_neigh(rt);
@@ -642,18 +624,32 @@ static int rt6_score_route(struct fib6_info *rt, int oif, int strict)
 	return m;
 }
 
+/* called with rc_read_lock held */
+static inline bool fib6_ignore_linkdown(const struct fib6_info *f6i)
+{
+	const struct net_device *dev = fib6_info_nh_dev(f6i);
+	bool rc = false;
+
+	if (dev) {
+		const struct inet6_dev *idev = __in6_dev_get(dev);
+
+		rc = !!idev->cnf.ignore_routes_with_linkdown;
+	}
+
+	return rc;
+}
+
 static struct fib6_info *find_match(struct fib6_info *rt, int oif, int strict,
 				   int *mpri, struct fib6_info *match,
 				   bool *do_rr)
 {
 	int m;
 	bool match_do_rr = false;
-	struct inet6_dev *idev = rt->rt6i_idev;
 
 	if (rt->fib6_nh.nh_flags & RTNH_F_DEAD)
 		goto out;
 
-	if (idev->cnf.ignore_routes_with_linkdown &&
+	if (fib6_ignore_linkdown(rt) &&
 	    rt->fib6_nh.nh_flags & RTNH_F_LINKDOWN &&
 	    !(strict & RT6_LOOKUP_F_IGNORE_LINKSTATE))
 		goto out;
@@ -694,7 +690,7 @@ static struct fib6_info *find_rr_leaf(struct fib6_node *fn,
 	match = NULL;
 	cont = NULL;
 	for (rt = rr_head; rt; rt = rcu_dereference(rt->rt6_next)) {
-		if (rt->rt6i_metric != metric) {
+		if (rt->fib6_metric != metric) {
 			cont = rt;
 			break;
 		}
@@ -704,7 +700,7 @@ static struct fib6_info *find_rr_leaf(struct fib6_node *fn,
 
 	for (rt = leaf; rt && rt != rr_head;
 	     rt = rcu_dereference(rt->rt6_next)) {
-		if (rt->rt6i_metric != metric) {
+		if (rt->fib6_metric != metric) {
 			cont = rt;
 			break;
 		}
@@ -741,30 +737,30 @@ static struct fib6_info *rt6_select(struct net *net, struct fib6_node *fn,
 	 * (This might happen if all routes under fn are deleted from
 	 * the tree and fib6_repair_tree() is called on the node.)
 	 */
-	key_plen = rt0->rt6i_dst.plen;
+	key_plen = rt0->fib6_dst.plen;
 #ifdef CONFIG_IPV6_SUBTREES
-	if (rt0->rt6i_src.plen)
-		key_plen = rt0->rt6i_src.plen;
+	if (rt0->fib6_src.plen)
+		key_plen = rt0->fib6_src.plen;
 #endif
 	if (fn->fn_bit != key_plen)
 		return net->ipv6.fib6_null_entry;
 
-	match = find_rr_leaf(fn, leaf, rt0, rt0->rt6i_metric, oif, strict,
+	match = find_rr_leaf(fn, leaf, rt0, rt0->fib6_metric, oif, strict,
 			     &do_rr);
 
 	if (do_rr) {
 		struct fib6_info *next = rcu_dereference(rt0->rt6_next);
 
 		/* no entries matched; do round-robin */
-		if (!next || next->rt6i_metric != rt0->rt6i_metric)
+		if (!next || next->fib6_metric != rt0->fib6_metric)
 			next = leaf;
 
 		if (next != rt0) {
-			spin_lock_bh(&leaf->rt6i_table->tb6_lock);
+			spin_lock_bh(&leaf->fib6_table->tb6_lock);
 			/* make sure next is not being deleted from the tree */
-			if (next->rt6i_node)
+			if (next->fib6_node)
 				rcu_assign_pointer(fn->rr_ptr, next);
-			spin_unlock_bh(&leaf->rt6i_table->tb6_lock);
+			spin_unlock_bh(&leaf->fib6_table->tb6_lock);
 		}
 	}
 
@@ -773,7 +769,7 @@ static struct fib6_info *rt6_select(struct net *net, struct fib6_node *fn,
 
 static bool rt6_is_gw_or_nonexthop(const struct fib6_info *rt)
 {
-	return (rt->rt6i_flags & (RTF_NONEXTHOP | RTF_GATEWAY));
+	return (rt->fib6_flags & (RTF_NONEXTHOP | RTF_GATEWAY));
 }
 
 #ifdef CONFIG_IPV6_ROUTE_INFO
@@ -837,8 +833,8 @@ int rt6_route_rcv(struct net_device *dev, u8 *opt, int len,
 		rt = rt6_add_route_info(net, prefix, rinfo->prefix_len, gwaddr,
 					dev, pref);
 	else if (rt)
-		rt->rt6i_flags = RTF_ROUTEINFO |
-				 (rt->rt6i_flags & ~RTF_PREF_MASK) | RTF_PREF(pref);
+		rt->fib6_flags = RTF_ROUTEINFO |
+				 (rt->fib6_flags & ~RTF_PREF_MASK) | RTF_PREF(pref);
 
 	if (rt) {
 		if (!addrconf_finite_timeout(lifetime))
@@ -861,13 +857,13 @@ static struct net_device *ip6_rt_get_dev_rcu(struct fib6_info *rt)
 {
 	struct net_device *dev = rt->fib6_nh.nh_dev;
 
-	if (rt->rt6i_flags & (RTF_LOCAL | RTF_ANYCAST)) {
+	if (rt->fib6_flags & (RTF_LOCAL | RTF_ANYCAST)) {
 		/* for copies of local routes, dst->dev needs to be the
 		 * device if it is a master device, the master device if
 		 * device is enslaved, and the loopback as the default
 		 */
 		if (netif_is_l3_slave(dev) &&
-		    !rt6_need_strict(&rt->rt6i_dst.addr))
+		    !rt6_need_strict(&rt->fib6_dst.addr))
 			dev = l3mdev_master_dev_rcu(dev);
 		else if (!netif_is_l3_master(dev))
 			dev = dev_net(dev)->loopback_dev;
@@ -939,7 +935,7 @@ static void ip6_rt_init_dst(struct rt6_info *rt, struct fib6_info *ort)
 {
 	rt->dst.flags |= fib6_info_dst_flags(ort);
 
-	if (ort->rt6i_flags & RTF_REJECT) {
+	if (ort->fib6_flags & RTF_REJECT) {
 		ip6_rt_init_dst_reject(rt, ort);
 		return;
 	}
@@ -949,7 +945,7 @@ static void ip6_rt_init_dst(struct rt6_info *rt, struct fib6_info *ort)
 
 	if (ort->fib6_type == RTN_LOCAL) {
 		rt->dst.input = ip6_input;
-	} else if (ipv6_addr_type(&ort->rt6i_dst.addr) & IPV6_ADDR_MULTICAST) {
+	} else if (ipv6_addr_type(&ort->fib6_dst.addr) & IPV6_ADDR_MULTICAST) {
 		rt->dst.input = ip6_mc_input;
 	} else {
 		rt->dst.input = ip6_forward;
@@ -977,19 +973,19 @@ static void rt6_set_from(struct rt6_info *rt, struct fib6_info *from)
 
 static void ip6_rt_copy_init(struct rt6_info *rt, struct fib6_info *ort)
 {
+	struct net_device *dev = fib6_info_nh_dev(ort);
+
 	ip6_rt_init_dst(rt, ort);
 
-	rt->rt6i_dst = ort->rt6i_dst;
-	rt->rt6i_idev = ort->rt6i_idev;
-	if (rt->rt6i_idev)
-		in6_dev_hold(rt->rt6i_idev);
+	rt->rt6i_dst = ort->fib6_dst;
+	rt->rt6i_idev = dev ? in6_dev_get(dev) : NULL;
 	rt->rt6i_gateway = ort->fib6_nh.nh_gw;
-	rt->rt6i_flags = ort->rt6i_flags;
+	rt->rt6i_flags = ort->fib6_flags;
 	rt6_set_from(rt, ort);
 #ifdef CONFIG_IPV6_SUBTREES
-	rt->rt6i_src = ort->rt6i_src;
+	rt->rt6i_src = ort->fib6_src;
 #endif
-	rt->rt6i_prefsrc = ort->rt6i_prefsrc;
+	rt->rt6i_prefsrc = ort->fib6_prefsrc;
 	rt->dst.lwtstate = lwtstate_get(ort->fib6_nh.nh_lwtstate);
 }
 
@@ -1064,7 +1060,7 @@ restart:
 	} else {
 		f6i = rt6_device_match(net, f6i, &fl6->saddr,
 				      fl6->flowi6_oif, flags);
-		if (f6i->rt6i_nsiblings && fl6->flowi6_oif == 0)
+		if (f6i->fib6_nsiblings && fl6->flowi6_oif == 0)
 			f6i = rt6_multipath_select(net, f6i, fl6,
 						   fl6->flowi6_oif, skb, flags);
 	}
@@ -1142,7 +1138,7 @@ static int __ip6_ins_rt(struct fib6_info *rt, struct nl_info *info,
 	int err;
 	struct fib6_table *table;
 
-	table = rt->rt6i_table;
+	table = rt->fib6_table;
 	spin_lock_bh(&table->tb6_lock);
 	err = fib6_add(&table->tb6_root, rt, info, extack);
 	spin_unlock_bh(&table->tb6_lock);
@@ -1182,8 +1178,8 @@ static struct rt6_info *ip6_rt_cache_alloc(struct fib6_info *ort,
 	rt->rt6i_dst.plen = 128;
 
 	if (!rt6_is_gw_or_nonexthop(ort)) {
-		if (ort->rt6i_dst.plen != 128 &&
-		    ipv6_addr_equal(&ort->rt6i_dst.addr, daddr))
+		if (ort->fib6_dst.plen != 128 &&
+		    ipv6_addr_equal(&ort->fib6_dst.addr, daddr))
 			rt->rt6i_flags |= RTF_ANYCAST;
 #ifdef CONFIG_IPV6_SUBTREES
 		if (rt->rt6i_src.plen && saddr) {
@@ -1375,7 +1371,18 @@ static unsigned int fib6_mtu(const struct fib6_info *rt)
 {
 	unsigned int mtu;
 
-	mtu = rt->fib6_pmtu ? : rt->rt6i_idev->cnf.mtu6;
+	if (rt->fib6_pmtu) {
+		mtu = rt->fib6_pmtu;
+	} else {
+		struct net_device *dev = fib6_info_nh_dev(rt);
+		struct inet6_dev *idev;
+
+		rcu_read_lock();
+		idev = __in6_dev_get(dev);
+		mtu = idev->cnf.mtu6;
+		rcu_read_unlock();
+	}
+
 	mtu = min_t(unsigned int, mtu, IP6_MAX_MTU);
 
 	return mtu - lwtunnel_headroom(rt->fib6_nh.nh_lwtstate, mtu);
@@ -1416,14 +1423,14 @@ static int rt6_insert_exception(struct rt6_info *nrt,
 	 * Otherwise, the exception table is indexed by
 	 * a hash of only rt6i_dst.
 	 */
-	if (ort->rt6i_src.plen)
+	if (ort->fib6_src.plen)
 		src_key = &nrt->rt6i_src.addr;
 #endif
 
 	/* Update rt6i_prefsrc as it could be changed
 	 * in rt6_remove_prefsrc()
 	 */
-	nrt->rt6i_prefsrc = ort->rt6i_prefsrc;
+	nrt->rt6i_prefsrc = ort->fib6_prefsrc;
 	/* rt6_mtu_change() might lower mtu on ort.
 	 * Only insert this exception route if its mtu
 	 * is less than ort's mtu value.
@@ -1457,9 +1464,9 @@ out:
 
 	/* Update fn->fn_sernum to invalidate all cached dst */
 	if (!err) {
-		spin_lock_bh(&ort->rt6i_table->tb6_lock);
+		spin_lock_bh(&ort->fib6_table->tb6_lock);
 		fib6_update_sernum(net, ort);
-		spin_unlock_bh(&ort->rt6i_table->tb6_lock);
+		spin_unlock_bh(&ort->fib6_table->tb6_lock);
 		fib6_force_start_gc(net);
 	}
 
@@ -1514,7 +1521,7 @@ static struct rt6_info *rt6_find_cached_rt(struct fib6_info *rt,
 	 * Otherwise, the exception table is indexed by
 	 * a hash of only rt6i_dst.
 	 */
-	if (rt->rt6i_src.plen)
+	if (rt->fib6_src.plen)
 		src_key = saddr;
 #endif
 	rt6_ex = __rt6_find_exception_rcu(&bucket, daddr, src_key);
@@ -1551,7 +1558,7 @@ static int rt6_remove_exception_rt(struct rt6_info *rt)
 	 * Otherwise, the exception table is indexed by
 	 * a hash of only rt6i_dst.
 	 */
-	if (from->rt6i_src.plen)
+	if (from->fib6_src.plen)
 		src_key = &rt->rt6i_src.addr;
 #endif
 	rt6_ex = __rt6_find_exception_spinlock(&bucket,
@@ -1592,7 +1599,7 @@ static void rt6_update_exception_stamp_rt(struct rt6_info *rt)
 	 * Otherwise, the exception table is indexed by
 	 * a hash of only rt6i_dst.
 	 */
-	if (from->rt6i_src.plen)
+	if (from->fib6_src.plen)
 		src_key = &rt->rt6i_src.addr;
 #endif
 	rt6_ex = __rt6_find_exception_rcu(&bucket,
@@ -1810,7 +1817,7 @@ struct rt6_info *ip6_pol_route(struct net *net, struct fib6_table *table,
 
 redo_rt6_select:
 	f6i = rt6_select(net, fn, oif, strict);
-	if (f6i->rt6i_nsiblings)
+	if (f6i->fib6_nsiblings)
 		f6i = rt6_multipath_select(net, f6i, fl6, oif, skb, strict);
 	if (f6i == net->ipv6.fib6_null_entry) {
 		fn = fib6_backtrack(fn, &fl6->saddr);
@@ -1842,7 +1849,7 @@ redo_rt6_select:
 		trace_fib6_table_lookup(net, rt, table, fl6);
 		return rt;
 	} else if (unlikely((fl6->flowi6_flags & FLOWI_FLAG_KNOWN_NH) &&
-			    !(f6i->rt6i_flags & RTF_GATEWAY))) {
+			    !(f6i->fib6_flags & RTF_GATEWAY))) {
 		/* Create a RTF_CACHE clone which will not be
 		 * owned by the fib6 tree.  It is for the special case where
 		 * the daddr in the skb during the neighbor look-up is different
@@ -2206,7 +2213,7 @@ static void ip6_link_failure(struct sk_buff *skb)
 			struct fib6_node *fn;
 
 			rcu_read_lock();
-			fn = rcu_dereference(rt->from->rt6i_node);
+			fn = rcu_dereference(rt->from->fib6_node);
 			if (fn && (rt->rt6i_flags & RTF_DEFAULT))
 				fn->fn_sernum = -1;
 			rcu_read_unlock();
@@ -2372,9 +2379,9 @@ restart:
 			continue;
 		if (fib6_check_expired(rt))
 			continue;
-		if (rt->rt6i_flags & RTF_REJECT)
+		if (rt->fib6_flags & RTF_REJECT)
 			break;
-		if (!(rt->rt6i_flags & RTF_GATEWAY))
+		if (!(rt->fib6_flags & RTF_GATEWAY))
 			continue;
 		if (fl6->flowi6_oif != rt->fib6_nh.nh_dev->ifindex)
 			continue;
@@ -2400,7 +2407,7 @@ restart:
 
 	if (!rt)
 		rt = net->ipv6.fib6_null_entry;
-	else if (rt->rt6i_flags & RTF_REJECT) {
+	else if (rt->fib6_flags & RTF_REJECT) {
 		ret = net->ipv6.ip6_null_entry;
 		goto out;
 	}
@@ -2907,7 +2914,7 @@ static struct fib6_info *ip6_route_info_create(struct fib6_config *cfg,
 
 	if (cfg->fc_protocol == RTPROT_UNSPEC)
 		cfg->fc_protocol = RTPROT_BOOT;
-	rt->rt6i_protocol = cfg->fc_protocol;
+	rt->fib6_protocol = cfg->fc_protocol;
 
 	addr_type = ipv6_addr_type(&cfg->fc_dst);
 
@@ -2922,17 +2929,17 @@ static struct fib6_info *ip6_route_info_create(struct fib6_config *cfg,
 		rt->fib6_nh.nh_lwtstate = lwtstate_get(lwtstate);
 	}
 
-	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)
+	ipv6_addr_prefix(&rt->fib6_dst.addr, &cfg->fc_dst, cfg->fc_dst_len);
+	rt->fib6_dst.plen = cfg->fc_dst_len;
+	if (rt->fib6_dst.plen == 128)
 		rt->dst_host = true;
 
 #ifdef CONFIG_IPV6_SUBTREES
-	ipv6_addr_prefix(&rt->rt6i_src.addr, &cfg->fc_src, cfg->fc_src_len);
-	rt->rt6i_src.plen = cfg->fc_src_len;
+	ipv6_addr_prefix(&rt->fib6_src.addr, &cfg->fc_src, cfg->fc_src_len);
+	rt->fib6_src.plen = cfg->fc_src_len;
 #endif
 
-	rt->rt6i_metric = cfg->fc_metric;
+	rt->fib6_metric = cfg->fc_metric;
 	rt->fib6_nh.nh_weight = 1;
 
 	rt->fib6_type = cfg->fc_type;
@@ -2958,7 +2965,7 @@ static struct fib6_info *ip6_route_info_create(struct fib6_config *cfg,
 				goto out;
 			}
 		}
-		rt->rt6i_flags = RTF_REJECT|RTF_NONEXTHOP;
+		rt->fib6_flags = RTF_REJECT|RTF_NONEXTHOP;
 		goto install_route;
 	}
 
@@ -2992,24 +2999,26 @@ static struct fib6_info *ip6_route_info_create(struct fib6_config *cfg,
 			err = -EINVAL;
 			goto out;
 		}
-		rt->rt6i_prefsrc.addr = cfg->fc_prefsrc;
-		rt->rt6i_prefsrc.plen = 128;
+		rt->fib6_prefsrc.addr = cfg->fc_prefsrc;
+		rt->fib6_prefsrc.plen = 128;
 	} else
-		rt->rt6i_prefsrc.plen = 0;
+		rt->fib6_prefsrc.plen = 0;
 
-	rt->rt6i_flags = cfg->fc_flags;
+	rt->fib6_flags = cfg->fc_flags;
 
 install_route:
-	if (!(rt->rt6i_flags & (RTF_LOCAL | RTF_ANYCAST)) &&
+	if (!(rt->fib6_flags & (RTF_LOCAL | RTF_ANYCAST)) &&
 	    !netif_carrier_ok(dev))
 		rt->fib6_nh.nh_flags |= RTNH_F_LINKDOWN;
 	rt->fib6_nh.nh_flags |= (cfg->fc_flags & RTNH_F_ONLINK);
 	rt->fib6_nh.nh_dev = dev;
-	rt->rt6i_idev = idev;
-	rt->rt6i_table = table;
+	rt->fib6_table = table;
 
 	cfg->fc_nlinfo.nl_net = dev_net(dev);
 
+	if (idev)
+		in6_dev_put(idev);
+
 	return rt;
 out:
 	if (dev)
@@ -3048,7 +3057,7 @@ static int __ip6_del_rt(struct fib6_info *rt, struct nl_info *info)
 		goto out;
 	}
 
-	table = rt->rt6i_table;
+	table = rt->fib6_table;
 	spin_lock_bh(&table->tb6_lock);
 	err = fib6_del(rt, info);
 	spin_unlock_bh(&table->tb6_lock);
@@ -3075,10 +3084,10 @@ static int __ip6_del_rt_siblings(struct fib6_info *rt, struct fib6_config *cfg)
 
 	if (rt == net->ipv6.fib6_null_entry)
 		goto out_put;
-	table = rt->rt6i_table;
+	table = rt->fib6_table;
 	spin_lock_bh(&table->tb6_lock);
 
-	if (rt->rt6i_nsiblings && cfg->fc_delete_all_nh) {
+	if (rt->fib6_nsiblings && cfg->fc_delete_all_nh) {
 		struct fib6_info *sibling, *next_sibling;
 
 		/* prefer to send a single notification with all hops */
@@ -3096,8 +3105,8 @@ static int __ip6_del_rt_siblings(struct fib6_info *rt, struct fib6_config *cfg)
 		}
 
 		list_for_each_entry_safe(sibling, next_sibling,
-					 &rt->rt6i_siblings,
-					 rt6i_siblings) {
+					 &rt->fib6_siblings,
+					 fib6_siblings) {
 			err = fib6_del(sibling, info);
 			if (err)
 				goto out_unlock;
@@ -3176,9 +3185,9 @@ static int ip6_route_del(struct fib6_config *cfg,
 			if (cfg->fc_flags & RTF_GATEWAY &&
 			    !ipv6_addr_equal(&cfg->fc_gateway, &rt->fib6_nh.nh_gw))
 				continue;
-			if (cfg->fc_metric && cfg->fc_metric != rt->rt6i_metric)
+			if (cfg->fc_metric && cfg->fc_metric != rt->fib6_metric)
 				continue;
-			if (cfg->fc_protocol && cfg->fc_protocol != rt->rt6i_protocol)
+			if (cfg->fc_protocol && cfg->fc_protocol != rt->fib6_protocol)
 				continue;
 			fib6_info_hold(rt);
 			rcu_read_unlock();
@@ -3336,7 +3345,7 @@ static struct fib6_info *rt6_get_route_info(struct net *net,
 	for_each_fib6_node_rt_rcu(fn) {
 		if (rt->fib6_nh.nh_dev->ifindex != ifindex)
 			continue;
-		if ((rt->rt6i_flags & (RTF_ROUTEINFO|RTF_GATEWAY)) != (RTF_ROUTEINFO|RTF_GATEWAY))
+		if ((rt->fib6_flags & (RTF_ROUTEINFO|RTF_GATEWAY)) != (RTF_ROUTEINFO|RTF_GATEWAY))
 			continue;
 		if (!ipv6_addr_equal(&rt->fib6_nh.nh_gw, gwaddr))
 			continue;
@@ -3396,7 +3405,7 @@ struct fib6_info *rt6_get_dflt_router(struct net *net,
 	rcu_read_lock();
 	for_each_fib6_node_rt_rcu(&table->tb6_root) {
 		if (dev == rt->fib6_nh.nh_dev &&
-		    ((rt->rt6i_flags & (RTF_ADDRCONF | RTF_DEFAULT)) == (RTF_ADDRCONF | RTF_DEFAULT)) &&
+		    ((rt->fib6_flags & (RTF_ADDRCONF | RTF_DEFAULT)) == (RTF_ADDRCONF | RTF_DEFAULT)) &&
 		    ipv6_addr_equal(&rt->fib6_nh.nh_gw, addr))
 			break;
 	}
@@ -3445,8 +3454,11 @@ static void __rt6_purge_dflt_routers(struct net *net,
 restart:
 	rcu_read_lock();
 	for_each_fib6_node_rt_rcu(&table->tb6_root) {
-		if (rt->rt6i_flags & (RTF_DEFAULT | RTF_ADDRCONF) &&
-		    (!rt->rt6i_idev || rt->rt6i_idev->cnf.accept_ra != 2)) {
+		struct net_device *dev = fib6_info_nh_dev(rt);
+		struct inet6_dev *idev = dev ? __in6_dev_get(dev) : NULL;
+
+		if (rt->fib6_flags & (RTF_DEFAULT | RTF_ADDRCONF) &&
+		    (!idev || idev->cnf.accept_ra != 2)) {
 			fib6_info_hold(rt);
 			rcu_read_unlock();
 			ip6_del_rt(net, rt);
@@ -3591,44 +3603,40 @@ static int ip6_pkt_prohibit_out(struct net *net, struct sock *sk, struct sk_buff
  *	Allocate a dst for local (unicast / anycast) address.
  */
 
-struct fib6_info *addrconf_dst_alloc(struct net *net,
-				    struct inet6_dev *idev,
-				    const struct in6_addr *addr,
-				    bool anycast, gfp_t gfp_flags)
+struct fib6_info *addrconf_f6i_alloc(struct net *net,
+				     struct inet6_dev *idev,
+				     const struct in6_addr *addr,
+				     bool anycast, gfp_t gfp_flags)
 {
 	u32 tb_id;
 	struct net_device *dev = idev->dev;
-	struct fib6_info *rt;
+	struct fib6_info *f6i;
 
-	rt = fib6_info_alloc(gfp_flags);
-	if (!rt)
+	f6i = fib6_info_alloc(gfp_flags);
+	if (!f6i)
 		return ERR_PTR(-ENOMEM);
 
-	rt->dst_nocount = true;
-
-	in6_dev_hold(idev);
-	rt->rt6i_idev = idev;
-
-	rt->dst_host = true;
-	rt->rt6i_protocol = RTPROT_KERNEL;
-	rt->rt6i_flags = RTF_UP | RTF_NONEXTHOP;
+	f6i->dst_nocount = true;
+	f6i->dst_host = true;
+	f6i->fib6_protocol = RTPROT_KERNEL;
+	f6i->fib6_flags = RTF_UP | RTF_NONEXTHOP;
 	if (anycast) {
-		rt->fib6_type = RTN_ANYCAST;
-		rt->rt6i_flags |= RTF_ANYCAST;
+		f6i->fib6_type = RTN_ANYCAST;
+		f6i->fib6_flags |= RTF_ANYCAST;
 	} else {
-		rt->fib6_type = RTN_LOCAL;
-		rt->rt6i_flags |= RTF_LOCAL;
+		f6i->fib6_type = RTN_LOCAL;
+		f6i->fib6_flags |= RTF_LOCAL;
 	}
 
-	rt->fib6_nh.nh_gw = *addr;
+	f6i->fib6_nh.nh_gw = *addr;
 	dev_hold(dev);
-	rt->fib6_nh.nh_dev = dev;
-	rt->rt6i_dst.addr = *addr;
-	rt->rt6i_dst.plen = 128;
+	f6i->fib6_nh.nh_dev = dev;
+	f6i->fib6_dst.addr = *addr;
+	f6i->fib6_dst.plen = 128;
 	tb_id = l3mdev_fib_table(idev->dev) ? : RT6_TABLE_LOCAL;
-	rt->rt6i_table = fib6_get_table(net, tb_id);
+	f6i->fib6_table = fib6_get_table(net, tb_id);
 
-	return rt;
+	return f6i;
 }
 
 /* remove deleted ip from prefsrc entries */
@@ -3646,10 +3654,10 @@ static int fib6_remove_prefsrc(struct fib6_info *rt, void *arg)
 
 	if (((void *)rt->fib6_nh.nh_dev == dev || !dev) &&
 	    rt != net->ipv6.fib6_null_entry &&
-	    ipv6_addr_equal(addr, &rt->rt6i_prefsrc.addr)) {
+	    ipv6_addr_equal(addr, &rt->fib6_prefsrc.addr)) {
 		spin_lock_bh(&rt6_exception_lock);
 		/* remove prefsrc entry */
-		rt->rt6i_prefsrc.plen = 0;
+		rt->fib6_prefsrc.plen = 0;
 		/* need to update cache as well */
 		rt6_exceptions_remove_prefsrc(rt);
 		spin_unlock_bh(&rt6_exception_lock);
@@ -3675,7 +3683,7 @@ static int fib6_clean_tohost(struct fib6_info *rt, void *arg)
 {
 	struct in6_addr *gateway = (struct in6_addr *)arg;
 
-	if (((rt->rt6i_flags & RTF_RA_ROUTER) == RTF_RA_ROUTER) &&
+	if (((rt->fib6_flags & RTF_RA_ROUTER) == RTF_RA_ROUTER) &&
 	    ipv6_addr_equal(gateway, &rt->fib6_nh.nh_gw)) {
 		return -1;
 	}
@@ -3707,16 +3715,16 @@ static struct fib6_info *rt6_multipath_first_sibling(const struct fib6_info *rt)
 	struct fib6_info *iter;
 	struct fib6_node *fn;
 
-	fn = rcu_dereference_protected(rt->rt6i_node,
-			lockdep_is_held(&rt->rt6i_table->tb6_lock));
+	fn = rcu_dereference_protected(rt->fib6_node,
+			lockdep_is_held(&rt->fib6_table->tb6_lock));
 	iter = rcu_dereference_protected(fn->leaf,
-			lockdep_is_held(&rt->rt6i_table->tb6_lock));
+			lockdep_is_held(&rt->fib6_table->tb6_lock));
 	while (iter) {
-		if (iter->rt6i_metric == rt->rt6i_metric &&
+		if (iter->fib6_metric == rt->fib6_metric &&
 		    rt6_qualify_for_ecmp(iter))
 			return iter;
 		iter = rcu_dereference_protected(iter->rt6_next,
-				lockdep_is_held(&rt->rt6i_table->tb6_lock));
+				lockdep_is_held(&rt->fib6_table->tb6_lock));
 	}
 
 	return NULL;
@@ -3726,7 +3734,7 @@ static bool rt6_is_dead(const struct fib6_info *rt)
 {
 	if (rt->fib6_nh.nh_flags & RTNH_F_DEAD ||
 	    (rt->fib6_nh.nh_flags & RTNH_F_LINKDOWN &&
-	     rt->rt6i_idev->cnf.ignore_routes_with_linkdown))
+	     fib6_ignore_linkdown(rt)))
 		return true;
 
 	return false;
@@ -3740,7 +3748,7 @@ static int rt6_multipath_total_weight(const struct fib6_info *rt)
 	if (!rt6_is_dead(rt))
 		total += rt->fib6_nh.nh_weight;
 
-	list_for_each_entry(iter, &rt->rt6i_siblings, rt6i_siblings) {
+	list_for_each_entry(iter, &rt->fib6_siblings, fib6_siblings) {
 		if (!rt6_is_dead(iter))
 			total += iter->fib6_nh.nh_weight;
 	}
@@ -3767,7 +3775,7 @@ static void rt6_multipath_upper_bound_set(struct fib6_info *rt, int total)
 
 	rt6_upper_bound_set(rt, &weight, total);
 
-	list_for_each_entry(iter, &rt->rt6i_siblings, rt6i_siblings)
+	list_for_each_entry(iter, &rt->fib6_siblings, fib6_siblings)
 		rt6_upper_bound_set(iter, &weight, total);
 }
 
@@ -3780,7 +3788,7 @@ void rt6_multipath_rebalance(struct fib6_info *rt)
 	 * then there is no need to rebalance upon the removal of every
 	 * sibling route.
 	 */
-	if (!rt->rt6i_nsiblings || rt->should_flush)
+	if (!rt->fib6_nsiblings || rt->should_flush)
 		return;
 
 	/* During lookup routes are evaluated in order, so we need to
@@ -3831,7 +3839,7 @@ static bool rt6_multipath_uses_dev(const struct fib6_info *rt,
 
 	if (rt->fib6_nh.nh_dev == dev)
 		return true;
-	list_for_each_entry(iter, &rt->rt6i_siblings, rt6i_siblings)
+	list_for_each_entry(iter, &rt->fib6_siblings, fib6_siblings)
 		if (iter->fib6_nh.nh_dev == dev)
 			return true;
 
@@ -3843,7 +3851,7 @@ static void rt6_multipath_flush(struct fib6_info *rt)
 	struct fib6_info *iter;
 
 	rt->should_flush = 1;
-	list_for_each_entry(iter, &rt->rt6i_siblings, rt6i_siblings)
+	list_for_each_entry(iter, &rt->fib6_siblings, fib6_siblings)
 		iter->should_flush = 1;
 }
 
@@ -3856,7 +3864,7 @@ static unsigned int rt6_multipath_dead_count(const struct fib6_info *rt,
 	if (rt->fib6_nh.nh_dev == down_dev ||
 	    rt->fib6_nh.nh_flags & RTNH_F_DEAD)
 		dead++;
-	list_for_each_entry(iter, &rt->rt6i_siblings, rt6i_siblings)
+	list_for_each_entry(iter, &rt->fib6_siblings, fib6_siblings)
 		if (iter->fib6_nh.nh_dev == down_dev ||
 		    iter->fib6_nh.nh_flags & RTNH_F_DEAD)
 			dead++;
@@ -3872,7 +3880,7 @@ static void rt6_multipath_nh_flags_set(struct fib6_info *rt,
 
 	if (rt->fib6_nh.nh_dev == dev)
 		rt->fib6_nh.nh_flags |= nh_flags;
-	list_for_each_entry(iter, &rt->rt6i_siblings, rt6i_siblings)
+	list_for_each_entry(iter, &rt->fib6_siblings, fib6_siblings)
 		if (iter->fib6_nh.nh_dev == dev)
 			iter->fib6_nh.nh_flags |= nh_flags;
 }
@@ -3893,13 +3901,13 @@ static int fib6_ifdown(struct fib6_info *rt, void *p_arg)
 	case NETDEV_DOWN:
 		if (rt->should_flush)
 			return -1;
-		if (!rt->rt6i_nsiblings)
+		if (!rt->fib6_nsiblings)
 			return rt->fib6_nh.nh_dev == dev ? -1 : 0;
 		if (rt6_multipath_uses_dev(rt, dev)) {
 			unsigned int count;
 
 			count = rt6_multipath_dead_count(rt, dev);
-			if (rt->rt6i_nsiblings + 1 == count) {
+			if (rt->fib6_nsiblings + 1 == count) {
 				rt6_multipath_flush(rt);
 				return -1;
 			}
@@ -3911,7 +3919,7 @@ static int fib6_ifdown(struct fib6_info *rt, void *p_arg)
 		return -2;
 	case NETDEV_CHANGE:
 		if (rt->fib6_nh.nh_dev != dev ||
-		    rt->rt6i_flags & (RTF_LOCAL | RTF_ANYCAST))
+		    rt->fib6_flags & (RTF_LOCAL | RTF_ANYCAST))
 			break;
 		rt->fib6_nh.nh_flags |= RTNH_F_LINKDOWN;
 		rt6_multipath_rebalance(rt);
@@ -4188,10 +4196,10 @@ static void ip6_route_mpath_notify(struct fib6_info *rt,
 	 * nexthop. Since sibling routes are always added at the end of
 	 * the list, find the first sibling of the last route appended
 	 */
-	if ((nlflags & NLM_F_APPEND) && rt_last && rt_last->rt6i_nsiblings) {
-		rt = list_first_entry(&rt_last->rt6i_siblings,
+	if ((nlflags & NLM_F_APPEND) && rt_last && rt_last->fib6_nsiblings) {
+		rt = list_first_entry(&rt_last->fib6_siblings,
 				      struct fib6_info,
-				      rt6i_siblings);
+				      fib6_siblings);
 	}
 
 	if (rt)
@@ -4410,13 +4418,13 @@ static size_t rt6_nlmsg_size(struct fib6_info *rt)
 {
 	int nexthop_len = 0;
 
-	if (rt->rt6i_nsiblings) {
+	if (rt->fib6_nsiblings) {
 		nexthop_len = nla_total_size(0)	 /* RTA_MULTIPATH */
 			    + NLA_ALIGN(sizeof(struct rtnexthop))
 			    + nla_total_size(16) /* RTA_GATEWAY */
 			    + lwtunnel_get_encap_size(rt->fib6_nh.nh_lwtstate);
 
-		nexthop_len *= rt->rt6i_nsiblings;
+		nexthop_len *= rt->fib6_nsiblings;
 	}
 
 	return NLMSG_ALIGN(sizeof(struct rtmsg))
@@ -4444,11 +4452,14 @@ static int rt6_nexthop_info(struct sk_buff *skb, struct fib6_info *rt,
 
 	if (rt->fib6_nh.nh_flags & RTNH_F_LINKDOWN) {
 		*flags |= RTNH_F_LINKDOWN;
-		if (rt->rt6i_idev->cnf.ignore_routes_with_linkdown)
+
+		rcu_read_lock();
+		if (fib6_ignore_linkdown(rt))
 			*flags |= RTNH_F_DEAD;
+		rcu_read_unlock();
 	}
 
-	if (rt->rt6i_flags & RTF_GATEWAY) {
+	if (rt->fib6_flags & RTF_GATEWAY) {
 		if (nla_put_in6_addr(skb, RTA_GATEWAY, &rt->fib6_nh.nh_gw) < 0)
 			goto nla_put_failure;
 	}
@@ -4518,11 +4529,11 @@ static int rt6_fill_node(struct net *net, struct sk_buff *skb,
 
 	rtm = nlmsg_data(nlh);
 	rtm->rtm_family = AF_INET6;
-	rtm->rtm_dst_len = rt->rt6i_dst.plen;
-	rtm->rtm_src_len = rt->rt6i_src.plen;
+	rtm->rtm_dst_len = rt->fib6_dst.plen;
+	rtm->rtm_src_len = rt->fib6_src.plen;
 	rtm->rtm_tos = 0;
-	if (rt->rt6i_table)
-		table = rt->rt6i_table->tb6_id;
+	if (rt->fib6_table)
+		table = rt->fib6_table->tb6_id;
 	else
 		table = RT6_TABLE_UNSPEC;
 	rtm->rtm_table = table;
@@ -4532,9 +4543,9 @@ static int rt6_fill_node(struct net *net, struct sk_buff *skb,
 	rtm->rtm_type = rt->fib6_type;
 	rtm->rtm_flags = 0;
 	rtm->rtm_scope = RT_SCOPE_UNIVERSE;
-	rtm->rtm_protocol = rt->rt6i_protocol;
+	rtm->rtm_protocol = rt->fib6_protocol;
 
-	if (rt->rt6i_flags & RTF_CACHE)
+	if (rt->fib6_flags & RTF_CACHE)
 		rtm->rtm_flags |= RTM_F_CLONED;
 
 	if (dest) {
@@ -4542,7 +4553,7 @@ static int rt6_fill_node(struct net *net, struct sk_buff *skb,
 			goto nla_put_failure;
 		rtm->rtm_dst_len = 128;
 	} else if (rtm->rtm_dst_len)
-		if (nla_put_in6_addr(skb, RTA_DST, &rt->rt6i_dst.addr))
+		if (nla_put_in6_addr(skb, RTA_DST, &rt->fib6_dst.addr))
 			goto nla_put_failure;
 #ifdef CONFIG_IPV6_SUBTREES
 	if (src) {
@@ -4550,12 +4561,12 @@ static int rt6_fill_node(struct net *net, struct sk_buff *skb,
 			goto nla_put_failure;
 		rtm->rtm_src_len = 128;
 	} else if (rtm->rtm_src_len &&
-		   nla_put_in6_addr(skb, RTA_SRC, &rt->rt6i_src.addr))
+		   nla_put_in6_addr(skb, RTA_SRC, &rt->fib6_src.addr))
 		goto nla_put_failure;
 #endif
 	if (iif) {
 #ifdef CONFIG_IPV6_MROUTE
-		if (ipv6_addr_is_multicast(&rt->rt6i_dst.addr)) {
+		if (ipv6_addr_is_multicast(&rt->fib6_dst.addr)) {
 			int err = ip6mr_get_route(net, skb, rtm, portid);
 
 			if (err == 0)
@@ -4573,9 +4584,9 @@ static int rt6_fill_node(struct net *net, struct sk_buff *skb,
 			goto nla_put_failure;
 	}
 
-	if (rt->rt6i_prefsrc.plen) {
+	if (rt->fib6_prefsrc.plen) {
 		struct in6_addr saddr_buf;
-		saddr_buf = rt->rt6i_prefsrc.addr;
+		saddr_buf = rt->fib6_prefsrc.addr;
 		if (nla_put_in6_addr(skb, RTA_PREFSRC, &saddr_buf))
 			goto nla_put_failure;
 	}
@@ -4584,13 +4595,13 @@ static int rt6_fill_node(struct net *net, struct sk_buff *skb,
 	if (rtnetlink_put_metrics(skb, pmetrics) < 0)
 		goto nla_put_failure;
 
-	if (nla_put_u32(skb, RTA_PRIORITY, rt->rt6i_metric))
+	if (nla_put_u32(skb, RTA_PRIORITY, rt->fib6_metric))
 		goto nla_put_failure;
 
 	/* For multipath routes, walk the siblings list and add
 	 * each as a nexthop within RTA_MULTIPATH.
 	 */
-	if (rt->rt6i_nsiblings) {
+	if (rt->fib6_nsiblings) {
 		struct fib6_info *sibling, *next_sibling;
 		struct nlattr *mp;
 
@@ -4602,7 +4613,7 @@ static int rt6_fill_node(struct net *net, struct sk_buff *skb,
 			goto nla_put_failure;
 
 		list_for_each_entry_safe(sibling, next_sibling,
-					 &rt->rt6i_siblings, rt6i_siblings) {
+					 &rt->fib6_siblings, fib6_siblings) {
 			if (rt6_add_nexthop(skb, sibling) < 0)
 				goto nla_put_failure;
 		}
@@ -4613,7 +4624,7 @@ static int rt6_fill_node(struct net *net, struct sk_buff *skb,
 			goto nla_put_failure;
 	}
 
-	if (rt->rt6i_flags & RTF_EXPIRES) {
+	if (rt->fib6_flags & RTF_EXPIRES) {
 		expires = dst ? dst->expires : rt->expires;
 		expires -= jiffies;
 	}
@@ -4621,7 +4632,7 @@ static int rt6_fill_node(struct net *net, struct sk_buff *skb,
 	if (rtnl_put_cacheinfo(skb, dst, 0, expires, dst ? dst->error : 0) < 0)
 		goto nla_put_failure;
 
-	if (nla_put_u8(skb, RTA_PREF, IPV6_EXTRACT_PREF(rt->rt6i_flags)))
+	if (nla_put_u8(skb, RTA_PREF, IPV6_EXTRACT_PREF(rt->fib6_flags)))
 		goto nla_put_failure;
 
 
@@ -4646,7 +4657,7 @@ int rt6_dump_route(struct fib6_info *rt, void *p_arg)
 
 		/* user wants prefix routes only */
 		if (rtm->rtm_flags & RTM_F_PREFIX &&
-		    !(rt->rt6i_flags & RTF_PREFIX_RT)) {
+		    !(rt->fib6_flags & RTF_PREFIX_RT)) {
 			/* success since this is not a prefix route */
 			return 1;
 		}
@@ -4820,7 +4831,6 @@ static int ip6_route_dev_notify(struct notifier_block *this,
 
 	if (event == NETDEV_REGISTER) {
 		net->ipv6.fib6_null_entry->fib6_nh.nh_dev = dev;
-		net->ipv6.fib6_null_entry->rt6i_idev = in6_dev_get(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
@@ -4834,7 +4844,6 @@ static int ip6_route_dev_notify(struct notifier_block *this,
 		/* NETDEV_UNREGISTER could be fired for multiple times by
 		 * netdev_wait_allrefs(). Make sure we only call this once.
 		 */
-		in6_dev_put_clear(&net->ipv6.fib6_null_entry->rt6i_idev);
 		in6_dev_put_clear(&net->ipv6.ip6_null_entry->rt6i_idev);
 #ifdef CONFIG_IPV6_MULTIPLE_TABLES
 		in6_dev_put_clear(&net->ipv6.ip6_prohibit_entry->rt6i_idev);
@@ -5157,7 +5166,6 @@ void __init ip6_route_init_special_entries(void)
 	 * the loopback reference in rt6_info will not be taken, do it
 	 * manually for init_net */
 	init_net.ipv6.fib6_null_entry->fib6_nh.nh_dev = init_net.loopback_dev;
-	init_net.ipv6.fib6_null_entry->rt6i_idev = in6_dev_get(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