ipv4: Remove flowi from struct rtable.

The only necessary parts are the src/dst addresses, the
interface indexes, the TOS, and the mark.

The rest is unnecessary bloat, which amounts to nearly
50 bytes on 64-bit.

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

7 files changed, 146 insertions, 94 deletions

diff --git a/include/net/route.h b/include/net/route.h
index 8905d90e004..9257f5f1733 100644
--- a/include/net/route.h
+++ b/include/net/route.h
@@ -53,16 +53,20 @@ struct fib_info;
 struct rtable {
         struct dst_entry        dst;
 
-        /* Cache lookup keys */
-        struct flowi            fl;
+        /* Lookup key. */
+        __be32                  rt_key_dst;
+        __be32                  rt_key_src;
 
         int                     rt_genid;
         unsigned                rt_flags;
         __u16                   rt_type;
+        __u8                    rt_tos;
 
         __be32                  rt_dst; /* Path destination     */
         __be32                  rt_src; /* Path source          */
         int                     rt_iif;
+        int                     rt_oif;
+        __u32                   rt_mark;
 
         /* Info on neighbour */
         __be32                  rt_gateway;
@@ -76,12 +80,12 @@ struct rtable {
 
 static inline bool rt_is_input_route(struct rtable *rt)
 {
-        return rt->fl.iif != 0;
+        return rt->rt_iif != 0;
 }
 
 static inline bool rt_is_output_route(struct rtable *rt)
 {
-        return rt->fl.iif == 0;
+        return rt->rt_iif == 0;
 }
 
 struct ip_rt_acct {
@@ -212,11 +216,11 @@ static inline struct rtable *ip_route_newports(struct rtable *rt,
                                                __be16 dport, struct sock *sk)
 {
         if (sport != orig_sport || dport != orig_dport) {
-                struct flowi fl = { .oif = rt->fl.oif,
-                                    .mark = rt->fl.mark,
-                                    .fl4_dst = rt->fl.fl4_dst,
-                                    .fl4_src = rt->fl.fl4_src,
-                                    .fl4_tos = rt->fl.fl4_tos,
+                struct flowi fl = { .oif = rt->rt_oif,
+                                    .mark = rt->rt_mark,
+                                    .fl4_dst = rt->rt_key_dst,
+                                    .fl4_src = rt->rt_key_src,
+                                    .fl4_tos = rt->rt_tos,
                                     .proto = protocol,
                                     .fl_ip_sport = sport,
                                     .fl_ip_dport = dport };
diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c
index 994a785d98f..1771ce66254 100644
--- a/net/ipv4/icmp.c
+++ b/net/ipv4/icmp.c
@@ -563,7 +563,7 @@ void icmp_send(struct sk_buff *skb_in, int type, int code, __be32 info)
                 rcu_read_lock();
                 if (rt_is_input_route(rt) &&
                     net->ipv4.sysctl_icmp_errors_use_inbound_ifaddr)
-                        dev = dev_get_by_index_rcu(net, rt->fl.iif);
+                        dev = dev_get_by_index_rcu(net, rt->rt_iif);
 
                 if (dev)
                         saddr = inet_select_addr(dev, 0, RT_SCOPE_LINK);
diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c
index 26ca2f2d37c..9d5f6340af1 100644
--- a/net/ipv4/ipmr.c
+++ b/net/ipv4/ipmr.c
@@ -1813,12 +1813,22 @@ int ip_mr_input(struct sk_buff *skb)
         if (IPCB(skb)->flags & IPSKB_FORWARDED)
                 goto dont_forward;
 
-        err = ipmr_fib_lookup(net, &skb_rtable(skb)->fl, &mrt);
-        if (err < 0) {
-                kfree_skb(skb);
-                return err;
+        {
+                struct rtable *rt = skb_rtable(skb);
+                struct flowi fl = {
+                        .fl4_dst = rt->rt_key_dst,
+                        .fl4_src = rt->rt_key_src,
+                        .fl4_tos = rt->rt_tos,
+                        .oif = rt->rt_oif,
+                        .iif = rt->rt_iif,
+                        .mark = rt->rt_mark,
+                };
+                err = ipmr_fib_lookup(net, &fl, &mrt);
+                if (err < 0) {
+                        kfree_skb(skb);
+                        return err;
+                }
         }
-
         if (!local) {
                 if (IPCB(skb)->opt.router_alert) {
                         if (ip_call_ra_chain(skb))
@@ -1946,9 +1956,19 @@ int pim_rcv_v1(struct sk_buff *skb)
 
         pim = igmp_hdr(skb);
 
-        if (ipmr_fib_lookup(net, &skb_rtable(skb)->fl, &mrt) < 0)
-                goto drop;
-
+        {
+                struct rtable *rt = skb_rtable(skb);
+                struct flowi fl = {
+                        .fl4_dst = rt->rt_key_dst,
+                        .fl4_src = rt->rt_key_src,
+                        .fl4_tos = rt->rt_tos,
+                        .oif = rt->rt_oif,
+                        .iif = rt->rt_iif,
+                        .mark = rt->rt_mark,
+                };
+                if (ipmr_fib_lookup(net, &fl, &mrt) < 0)
+                        goto drop;
+        }
         if (!mrt->mroute_do_pim ||
             pim->group != PIM_V1_VERSION || pim->code != PIM_V1_REGISTER)
                 goto drop;
@@ -1978,9 +1998,19 @@ static int pim_rcv(struct sk_buff *skb)
              csum_fold(skb_checksum(skb, 0, skb->len, 0))))
                 goto drop;
 
-        if (ipmr_fib_lookup(net, &skb_rtable(skb)->fl, &mrt) < 0)
-                goto drop;
-
+        {
+                struct rtable *rt = skb_rtable(skb);
+                struct flowi fl = {
+                        .fl4_dst = rt->rt_key_dst,
+                        .fl4_src = rt->rt_key_src,
+                        .fl4_tos = rt->rt_tos,
+                        .oif = rt->rt_oif,
+                        .iif = rt->rt_iif,
+                        .mark = rt->rt_mark,
+                };
+                if (ipmr_fib_lookup(net, &fl, &mrt) < 0)
+                        goto drop;
+        }
         if (__pim_rcv(mrt, skb, sizeof(*pim))) {
 drop:
                 kfree_skb(skb);
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 602473c9201..92a24ea34c1 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -424,7 +424,7 @@ static int rt_cache_seq_show(struct seq_file *seq, void *v)
                         dst_metric(&r->dst, RTAX_WINDOW),
                         (int)((dst_metric(&r->dst, RTAX_RTT) >> 3) +
                               dst_metric(&r->dst, RTAX_RTTVAR)),
-                        r->fl.fl4_tos,
+                        r->rt_tos,
                         r->dst.hh ? atomic_read(&r->dst.hh->hh_refcnt) : -1,
                         r->dst.hh ? (r->dst.hh->hh_output ==
                                        dev_queue_xmit) : 0,
@@ -711,22 +711,22 @@ static inline bool rt_caching(const struct net *net)
                 net->ipv4.sysctl_rt_cache_rebuild_count;
 }
 
-static inline bool compare_hash_inputs(const struct flowi *fl1,
-                                        const struct flowi *fl2)
+static inline bool compare_hash_inputs(const struct rtable *rt1,
+                                       const struct rtable *rt2)
 {
-        return ((((__force u32)fl1->fl4_dst ^ (__force u32)fl2->fl4_dst) |
-                ((__force u32)fl1->fl4_src ^ (__force u32)fl2->fl4_src) |
-                (fl1->iif ^ fl2->iif)) == 0);
+        return ((((__force u32)rt1->rt_key_dst ^ (__force u32)rt2->rt_key_dst) |
+                ((__force u32)rt1->rt_key_src ^ (__force u32)rt2->rt_key_src) |
+                (rt1->rt_iif ^ rt2->rt_iif)) == 0);
 }
 
-static inline int compare_keys(struct flowi *fl1, struct flowi *fl2)
+static inline int compare_keys(struct rtable *rt1, struct rtable *rt2)
 {
-        return (((__force u32)fl1->fl4_dst ^ (__force u32)fl2->fl4_dst) |
-                ((__force u32)fl1->fl4_src ^ (__force u32)fl2->fl4_src) |
-                (fl1->mark ^ fl2->mark) |
-                (*(u16 *)&fl1->fl4_tos ^ *(u16 *)&fl2->fl4_tos) |
-                (fl1->oif ^ fl2->oif) |
-                (fl1->iif ^ fl2->iif)) == 0;
+        return (((__force u32)rt1->rt_key_dst ^ (__force u32)rt2->rt_key_dst) |
+                ((__force u32)rt1->rt_key_src ^ (__force u32)rt2->rt_key_src) |
+                (rt1->rt_mark ^ rt2->rt_mark) |
+                (rt1->rt_tos ^ rt2->rt_tos) |
+                (rt1->rt_oif ^ rt2->rt_oif) |
+                (rt1->rt_iif ^ rt2->rt_iif)) == 0;
 }
 
 static inline int compare_netns(struct rtable *rt1, struct rtable *rt2)
@@ -813,7 +813,7 @@ static int has_noalias(const struct rtable *head, const struct rtable *rth)
         const struct rtable *aux = head;
 
         while (aux != rth) {
-                if (compare_hash_inputs(&aux->fl, &rth->fl))
+                if (compare_hash_inputs(aux, rth))
                         return 0;
                 aux = rcu_dereference_protected(aux->dst.rt_next, 1);
         }
@@ -1073,7 +1073,7 @@ restart:
                         rt_free(rth);
                         continue;
                 }
-                if (compare_keys(&rth->fl, &rt->fl) && compare_netns(rth, rt)) {
+                if (compare_keys(rth, rt) && compare_netns(rth, rt)) {
                         /* Put it first */
                         *rthp = rth->dst.rt_next;
                         /*
@@ -1136,7 +1136,7 @@ restart:
                         rt_emergency_hash_rebuild(net);
                         spin_unlock_bh(rt_hash_lock_addr(hash));
 
-                        hash = rt_hash(rt->fl.fl4_dst, rt->fl.fl4_src,
+                        hash = rt_hash(rt->rt_key_dst, rt->rt_key_src,
                                         ifindex, rt_genid(net));
                         goto restart;
                 }
@@ -1344,12 +1344,12 @@ static struct dst_entry *ipv4_negative_advice(struct dst_entry *dst)
                         ip_rt_put(rt);
                         ret = NULL;
                 } else if (rt->rt_flags & RTCF_REDIRECTED) {
-                        unsigned hash = rt_hash(rt->fl.fl4_dst, rt->fl.fl4_src,
-                                                rt->fl.oif,
+                        unsigned hash = rt_hash(rt->rt_key_dst, rt->rt_key_src,
+                                                rt->rt_oif,
                                                 rt_genid(dev_net(dst->dev)));
 #if RT_CACHE_DEBUG >= 1
                         printk(KERN_DEBUG "ipv4_negative_advice: redirect to %pI4/%02x dropped\n",
-                                &rt->rt_dst, rt->fl.fl4_tos);
+                                &rt->rt_dst, rt->rt_tos);
 #endif
                         rt_del(hash, rt);
                         ret = NULL;
@@ -1697,8 +1697,17 @@ void ip_rt_get_source(u8 *addr, struct rtable *rt)
         if (rt_is_output_route(rt))
                 src = rt->rt_src;
         else {
+                struct flowi fl = {
+                        .fl4_dst = rt->rt_key_dst,
+                        .fl4_src = rt->rt_key_src,
+                        .fl4_tos = rt->rt_tos,
+                        .oif = rt->rt_oif,
+                        .iif = rt->rt_iif,
+                        .mark = rt->rt_mark,
+                };
+
                 rcu_read_lock();
-                if (fib_lookup(dev_net(rt->dst.dev), &rt->fl, &res) == 0)
+                if (fib_lookup(dev_net(rt->dst.dev), &fl, &res) == 0)
                         src = FIB_RES_PREFSRC(res);
                 else
                         src = inet_select_addr(rt->dst.dev, rt->rt_gateway,
@@ -1748,7 +1757,8 @@ static unsigned int ipv4_default_mtu(const struct dst_entry *dst)
         return mtu;
 }
 
-static void rt_init_metrics(struct rtable *rt, struct fib_info *fi)
+static void rt_init_metrics(struct rtable *rt, const struct flowi *oldflp,
+                            struct fib_info *fi)
 {
         struct inet_peer *peer;
         int create = 0;
@@ -1756,7 +1766,7 @@ static void rt_init_metrics(struct rtable *rt, struct fib_info *fi)
         /* If a peer entry exists for this destination, we must hook
          * it up in order to get at cached metrics.
          */
-        if (rt->fl.flags & FLOWI_FLAG_PRECOW_METRICS)
+        if (oldflp && (oldflp->flags & FLOWI_FLAG_PRECOW_METRICS))
                 create = 1;
 
         rt->peer = peer = inet_getpeer_v4(rt->rt_dst, create);
@@ -1783,7 +1793,8 @@ static void rt_init_metrics(struct rtable *rt, struct fib_info *fi)
         }
 }
 
-static void rt_set_nexthop(struct rtable *rt, const struct fib_result *res,
+static void rt_set_nexthop(struct rtable *rt, const struct flowi *oldflp,
+                           const struct fib_result *res,
                            struct fib_info *fi, u16 type, u32 itag)
 {
         struct dst_entry *dst = &rt->dst;
@@ -1792,7 +1803,7 @@ static void rt_set_nexthop(struct rtable *rt, const struct fib_result *res,
                 if (FIB_RES_GW(*res) &&
                     FIB_RES_NH(*res).nh_scope == RT_SCOPE_LINK)
                         rt->rt_gateway = FIB_RES_GW(*res);
-                rt_init_metrics(rt, fi);
+                rt_init_metrics(rt, oldflp, fi);
 #ifdef CONFIG_IP_ROUTE_CLASSID
                 dst->tclassid = FIB_RES_NH(*res).nh_tclassid;
 #endif
@@ -1861,20 +1872,19 @@ static int ip_route_input_mc(struct sk_buff *skb, __be32 daddr, __be32 saddr,
 
         rth->dst.output = ip_rt_bug;
 
-        rth->fl.fl4_dst = daddr;
+        rth->rt_key_dst = daddr;
         rth->rt_dst     = daddr;
-        rth->fl.fl4_tos = tos;
-        rth->fl.mark    = skb->mark;
-        rth->fl.fl4_src = saddr;
+        rth->rt_tos     = tos;
+        rth->rt_mark    = skb->mark;
+        rth->rt_key_src = saddr;
         rth->rt_src     = saddr;
 #ifdef CONFIG_IP_ROUTE_CLASSID
         rth->dst.tclassid = itag;
 #endif
-        rth->rt_iif     =
-        rth->fl.iif     = dev->ifindex;
+        rth->rt_iif     = dev->ifindex;
         rth->dst.dev    = init_net.loopback_dev;
         dev_hold(rth->dst.dev);
-        rth->fl.oif     = 0;
+        rth->rt_oif     = 0;
         rth->rt_gateway = daddr;
         rth->rt_spec_dst= spec_dst;
         rth->rt_genid   = rt_genid(dev_net(dev));
@@ -1999,25 +2009,24 @@ static int __mkroute_input(struct sk_buff *skb,
                 goto cleanup;
         }
 
-        rth->fl.fl4_dst = daddr;
+        rth->rt_key_dst = daddr;
         rth->rt_dst     = daddr;
-        rth->fl.fl4_tos = tos;
-        rth->fl.mark    = skb->mark;
-        rth->fl.fl4_src = saddr;
+        rth->rt_tos     = tos;
+        rth->rt_mark    = skb->mark;
+        rth->rt_key_src = saddr;
         rth->rt_src     = saddr;
         rth->rt_gateway = daddr;
-        rth->rt_iif     =
-                rth->fl.iif     = in_dev->dev->ifindex;
+        rth->rt_iif     = in_dev->dev->ifindex;
         rth->dst.dev    = (out_dev)->dev;
         dev_hold(rth->dst.dev);
-        rth->fl.oif     = 0;
+        rth->rt_oif     = 0;
         rth->rt_spec_dst= spec_dst;
 
         rth->dst.input = ip_forward;
         rth->dst.output = ip_output;
         rth->rt_genid = rt_genid(dev_net(rth->dst.dev));
 
-        rt_set_nexthop(rth, res, res->fi, res->type, itag);
+        rt_set_nexthop(rth, NULL, res, res->fi, res->type, itag);
 
         rth->rt_flags = flags;
 
@@ -2172,17 +2181,16 @@ local_input:
         rth->dst.output= ip_rt_bug;
         rth->rt_genid = rt_genid(net);
 
-        rth->fl.fl4_dst = daddr;
+        rth->rt_key_dst = daddr;
         rth->rt_dst     = daddr;
-        rth->fl.fl4_tos = tos;
-        rth->fl.mark    = skb->mark;
-        rth->fl.fl4_src = saddr;
+        rth->rt_tos     = tos;
+        rth->rt_mark    = skb->mark;
+        rth->rt_key_src = saddr;
         rth->rt_src     = saddr;
 #ifdef CONFIG_IP_ROUTE_CLASSID
         rth->dst.tclassid = itag;
 #endif
-        rth->rt_iif     =
-        rth->fl.iif     = dev->ifindex;
+        rth->rt_iif     = dev->ifindex;
         rth->dst.dev    = net->loopback_dev;
         dev_hold(rth->dst.dev);
         rth->rt_gateway = daddr;
@@ -2261,12 +2269,12 @@ int ip_route_input_common(struct sk_buff *skb, __be32 daddr, __be32 saddr,
 
         for (rth = rcu_dereference(rt_hash_table[hash].chain); rth;
              rth = rcu_dereference(rth->dst.rt_next)) {
-                if ((((__force u32)rth->fl.fl4_dst ^ (__force u32)daddr) |
-                     ((__force u32)rth->fl.fl4_src ^ (__force u32)saddr) |
-                     (rth->fl.iif ^ iif) |
-                     rth->fl.oif |
-                     (rth->fl.fl4_tos ^ tos)) == 0 &&
-                    rth->fl.mark == skb->mark &&
+                if ((((__force u32)rth->rt_key_dst ^ (__force u32)daddr) |
+                     ((__force u32)rth->rt_key_src ^ (__force u32)saddr) |
+                     (rth->rt_iif ^ iif) |
+                     rth->rt_oif |
+                     (rth->rt_tos ^ tos)) == 0 &&
+                    rth->rt_mark == skb->mark &&
                     net_eq(dev_net(rth->dst.dev), net) &&
                     !rt_is_expired(rth)) {
                         if (noref) {
@@ -2374,11 +2382,11 @@ static struct rtable *__mkroute_output(const struct fib_result *res,
         if (!rth)
                 return ERR_PTR(-ENOBUFS);
 
-        rth->fl.fl4_dst = oldflp->fl4_dst;
-        rth->fl.fl4_tos = tos;
-        rth->fl.fl4_src = oldflp->fl4_src;
-        rth->fl.oif     = oldflp->oif;
-        rth->fl.mark    = oldflp->mark;
+        rth->rt_key_dst = oldflp->fl4_dst;
+        rth->rt_tos     = tos;
+        rth->rt_key_src = oldflp->fl4_src;
+        rth->rt_oif     = oldflp->oif;
+        rth->rt_mark    = oldflp->mark;
         rth->rt_dst     = fl->fl4_dst;
         rth->rt_src     = fl->fl4_src;
         rth->rt_iif     = 0;
@@ -2416,7 +2424,7 @@ static struct rtable *__mkroute_output(const struct fib_result *res,
 #endif
         }
 
-        rt_set_nexthop(rth, res, fi, type, 0);
+        rt_set_nexthop(rth, oldflp, res, fi, type, 0);
 
         rth->rt_flags = flags;
         return rth;
@@ -2629,12 +2637,12 @@ struct rtable *__ip_route_output_key(struct net *net, const struct flowi *flp)
         rcu_read_lock_bh();
         for (rth = rcu_dereference_bh(rt_hash_table[hash].chain); rth;
                 rth = rcu_dereference_bh(rth->dst.rt_next)) {
-                if (rth->fl.fl4_dst == flp->fl4_dst &&
-                    rth->fl.fl4_src == flp->fl4_src &&
+                if (rth->rt_key_dst == flp->fl4_dst &&
+                    rth->rt_key_src == flp->fl4_src &&
                     rt_is_output_route(rth) &&
-                    rth->fl.oif == flp->oif &&
-                    rth->fl.mark == flp->mark &&
-                    !((rth->fl.fl4_tos ^ flp->fl4_tos) &
+                    rth->rt_oif == flp->oif &&
+                    rth->rt_mark == flp->mark &&
+                    !((rth->rt_tos ^ flp->fl4_tos) &
                             (IPTOS_RT_MASK | RTO_ONLINK)) &&
                     net_eq(dev_net(rth->dst.dev), net) &&
                     !rt_is_expired(rth)) {
@@ -2693,7 +2701,12 @@ struct dst_entry *ipv4_blackhole_route(struct net *net, struct dst_entry *dst_or
                 if (new->dev)
                         dev_hold(new->dev);
 
-                rt->fl = ort->fl;
+                rt->rt_key_dst = ort->rt_key_dst;
+                rt->rt_key_src = ort->rt_key_src;
+                rt->rt_tos = ort->rt_tos;
+                rt->rt_iif = ort->rt_iif;
+                rt->rt_oif = ort->rt_oif;
+                rt->rt_mark = ort->rt_mark;
 
                 rt->rt_genid = rt_genid(net);
                 rt->rt_flags = ort->rt_flags;
@@ -2756,7 +2769,7 @@ static int rt_fill_info(struct net *net,
         r->rtm_family    = AF_INET;
         r->rtm_dst_len  = 32;
         r->rtm_src_len  = 0;
-        r->rtm_tos      = rt->fl.fl4_tos;
+        r->rtm_tos      = rt->rt_tos;
         r->rtm_table    = RT_TABLE_MAIN;
         NLA_PUT_U32(skb, RTA_TABLE, RT_TABLE_MAIN);
         r->rtm_type     = rt->rt_type;
@@ -2768,9 +2781,9 @@ static int rt_fill_info(struct net *net,
 
         NLA_PUT_BE32(skb, RTA_DST, rt->rt_dst);
 
-        if (rt->fl.fl4_src) {
+        if (rt->rt_key_src) {
                 r->rtm_src_len = 32;
-                NLA_PUT_BE32(skb, RTA_SRC, rt->fl.fl4_src);
+                NLA_PUT_BE32(skb, RTA_SRC, rt->rt_key_src);
         }
         if (rt->dst.dev)
                 NLA_PUT_U32(skb, RTA_OIF, rt->dst.dev->ifindex);
@@ -2780,7 +2793,7 @@ static int rt_fill_info(struct net *net,
 #endif
         if (rt_is_input_route(rt))
                 NLA_PUT_BE32(skb, RTA_PREFSRC, rt->rt_spec_dst);
-        else if (rt->rt_src != rt->fl.fl4_src)
+        else if (rt->rt_src != rt->rt_key_src)
                 NLA_PUT_BE32(skb, RTA_PREFSRC, rt->rt_src);
 
         if (rt->rt_dst != rt->rt_gateway)
@@ -2789,8 +2802,8 @@ static int rt_fill_info(struct net *net,
         if (rtnetlink_put_metrics(skb, dst_metrics_ptr(&rt->dst)) < 0)
                 goto nla_put_failure;
 
-        if (rt->fl.mark)
-                NLA_PUT_BE32(skb, RTA_MARK, rt->fl.mark);
+        if (rt->rt_mark)
+                NLA_PUT_BE32(skb, RTA_MARK, rt->rt_mark);
 
         error = rt->dst.error;
         expires = (rt->peer && rt->peer->pmtu_expires) ?
@@ -2824,7 +2837,7 @@ static int rt_fill_info(struct net *net,
                         }
                 } else
 #endif
-                        NLA_PUT_U32(skb, RTA_IIF, rt->fl.iif);
+                        NLA_PUT_U32(skb, RTA_IIF, rt->rt_iif);
         }
 
         if (rtnl_put_cacheinfo(skb, &rt->dst, id, ts, tsage,
diff --git a/net/ipv4/xfrm4_policy.c b/net/ipv4/xfrm4_policy.c
index 45b82148042..c70c42e7e77 100644
--- a/net/ipv4/xfrm4_policy.c
+++ b/net/ipv4/xfrm4_policy.c
@@ -70,7 +70,12 @@ static int xfrm4_fill_dst(struct xfrm_dst *xdst, struct net_device *dev,
 {
         struct rtable *rt = (struct rtable *)xdst->route;
 
-        xdst->u.rt.fl = *fl;
+        rt->rt_key_dst = fl->fl4_dst;
+        rt->rt_key_src = fl->fl4_src;
+        rt->rt_tos = fl->fl4_tos;
+        rt->rt_iif = fl->iif;
+        rt->rt_oif = fl->oif;
+        rt->rt_mark = fl->mark;
 
         xdst->u.dst.dev = dev;
         dev_hold(dev);
diff --git a/net/sched/cls_route.c b/net/sched/cls_route.c
index d580cdfca09..a907905376d 100644
--- a/net/sched/cls_route.c
+++ b/net/sched/cls_route.c
@@ -143,7 +143,7 @@ static int route4_classify(struct sk_buff *skb, struct tcf_proto *tp,
         if (head == NULL)
                 goto old_method;
 
-        iif = ((struct rtable *)dst)->fl.iif;
+        iif = ((struct rtable *)dst)->rt_iif;
 
         h = route4_fastmap_hash(id, iif);
         if (id == head->fastmap[h].id &&
diff --git a/net/sched/em_meta.c b/net/sched/em_meta.c
index e5e17478267..a4de67eca82 100644
--- a/net/sched/em_meta.c
+++ b/net/sched/em_meta.c
@@ -264,7 +264,7 @@ META_COLLECTOR(int_rtiif)
         if (unlikely(skb_rtable(skb) == NULL))
                 *err = -1;
         else
-                dst->value = skb_rtable(skb)->fl.iif;
+                dst->value = skb_rtable(skb)->rt_iif;
 }
 
 /**************************************************************************