ALSA: asihpi - Fix uninitialized variable
[safe/jmp/linux-2.6] / net / decnet / dn_route.c
index a4a6209..812e6df 100644 (file)
@@ -66,6 +66,7 @@
 #include <linux/inet.h>
 #include <linux/route.h>
 #include <linux/in_route.h>
+#include <linux/slab.h>
 #include <net/sock.h>
 #include <linux/mm.h>
 #include <linux/proc_fs.h>
@@ -77,6 +78,7 @@
 #include <linux/rcupdate.h>
 #include <linux/times.h>
 #include <asm/errno.h>
+#include <net/net_namespace.h>
 #include <net/netlink.h>
 #include <net/neighbour.h>
 #include <net/dst.h>
@@ -93,7 +95,7 @@ struct dn_rt_hash_bucket
 {
        struct dn_route *chain;
        spinlock_t lock;
-} __attribute__((__aligned__(8)));
+};
 
 extern struct neigh_table dn_neigh_table;
 
@@ -106,7 +108,7 @@ static const int dn_rt_mtu_expires = 10 * 60 * HZ;
 
 static unsigned long dn_rt_deadline;
 
-static int dn_dst_gc(void);
+static int dn_dst_gc(struct dst_ops *ops);
 static struct dst_entry *dn_dst_check(struct dst_entry *, __u32);
 static struct dst_entry *dn_dst_negative_advice(struct dst_entry *);
 static void dn_dst_link_failure(struct sk_buff *);
@@ -123,14 +125,13 @@ int decnet_dst_gc_interval = 2;
 
 static struct dst_ops dn_dst_ops = {
        .family =               PF_DECnet,
-       .protocol =             __constant_htons(ETH_P_DNA_RT),
+       .protocol =             cpu_to_be16(ETH_P_DNA_RT),
        .gc_thresh =            128,
        .gc =                   dn_dst_gc,
        .check =                dn_dst_check,
        .negative_advice =      dn_dst_negative_advice,
        .link_failure =         dn_dst_link_failure,
        .update_pmtu =          dn_dst_update_pmtu,
-       .entry_size =           sizeof(struct dn_route),
        .entries =              ATOMIC_INIT(0),
 };
 
@@ -184,7 +185,7 @@ static void dn_dst_check_expire(unsigned long dummy)
        mod_timer(&dn_route_timer, now + decnet_dst_gc_interval * HZ);
 }
 
-static int dn_dst_gc(void)
+static int dn_dst_gc(struct dst_ops *ops)
 {
        struct dn_route *rt, **rtp;
        int i;
@@ -234,14 +235,14 @@ static void dn_dst_update_pmtu(struct dst_entry *dst, u32 mtu)
        else
                min_mtu -= 21;
 
-       if (dst->metrics[RTAX_MTU-1] > mtu && mtu >= min_mtu) {
+       if (dst_metric(dst, RTAX_MTU) > mtu && mtu >= min_mtu) {
                if (!(dst_metric_locked(dst, RTAX_MTU))) {
                        dst->metrics[RTAX_MTU-1] = mtu;
                        dst_set_expires(dst, dn_rt_mtu_expires);
                }
                if (!(dst_metric_locked(dst, RTAX_ADVMSS))) {
                        u32 mss = mtu - DN_MAX_NSP_DATA_HEADER;
-                       if (dst->metrics[RTAX_ADVMSS-1] > mss)
+                       if (dst_metric(dst, RTAX_ADVMSS) > mss)
                                dst->metrics[RTAX_ADVMSS-1] = mss;
                }
        }
@@ -263,7 +264,6 @@ static struct dst_entry *dn_dst_negative_advice(struct dst_entry *dst)
 
 static void dn_dst_link_failure(struct sk_buff *skb)
 {
-       return;
 }
 
 static inline int compare_keys(struct flowi *fl1, struct flowi *fl2)
@@ -292,9 +292,7 @@ static int dn_insert_route(struct dn_route *rt, unsigned hash, struct dn_route *
                                           dn_rt_hash_table[hash].chain);
                        rcu_assign_pointer(dn_rt_hash_table[hash].chain, rth);
 
-                       rth->u.dst.__use++;
-                       dst_hold(&rth->u.dst);
-                       rth->u.dst.lastuse = now;
+                       dst_use(&rth->u.dst, now);
                        spin_unlock_bh(&dn_rt_hash_table[hash].lock);
 
                        dnrt_drop(rt);
@@ -307,15 +305,13 @@ static int dn_insert_route(struct dn_route *rt, unsigned hash, struct dn_route *
        rcu_assign_pointer(rt->u.dst.dn_next, dn_rt_hash_table[hash].chain);
        rcu_assign_pointer(dn_rt_hash_table[hash].chain, rt);
 
-       dst_hold(&rt->u.dst);
-       rt->u.dst.__use++;
-       rt->u.dst.lastuse = now;
+       dst_use(&rt->u.dst, now);
        spin_unlock_bh(&dn_rt_hash_table[hash].lock);
        *rp = rt;
        return 0;
 }
 
-void dn_run_flush(unsigned long dummy)
+static void dn_run_flush(unsigned long dummy)
 {
        int i;
        struct dn_route *rt, *next;
@@ -384,7 +380,6 @@ static int dn_return_short(struct sk_buff *skb)
        unsigned char *ptr;
        __le16 *src;
        __le16 *dst;
-       __le16 tmp;
 
        /* Add back headers */
        skb_push(skb, skb->data - skb_network_header(skb));
@@ -403,10 +398,7 @@ static int dn_return_short(struct sk_buff *skb)
        ptr += 2;
        *ptr = 0; /* Zero hop count */
 
-       /* Swap source and destination */
-       tmp  = *src;
-       *src = *dst;
-       *dst = tmp;
+       swap(*src, *dst);
 
        skb->pkt_type = PACKET_OUTGOING;
        dn_rt_finish_output(skb, NULL, NULL);
@@ -479,7 +471,7 @@ static int dn_route_rx_packet(struct sk_buff *skb)
                printk(KERN_DEBUG
                        "DECnet: dn_route_rx_packet: rt_flags=0x%02x dev=%s len=%d src=0x%04hx dst=0x%04hx err=%d type=%d\n",
                        (int)cb->rt_flags, devname, skb->len,
-                       dn_ntohs(cb->src), dn_ntohs(cb->dst),
+                       le16_to_cpu(cb->src), le16_to_cpu(cb->dst),
                        err, skb->pkt_type);
        }
 
@@ -525,7 +517,8 @@ static int dn_route_rx_long(struct sk_buff *skb)
        ptr++;
        cb->hops = *ptr++; /* Visit Count */
 
-       return NF_HOOK(PF_DECnet, NF_DN_PRE_ROUTING, skb, skb->dev, NULL, dn_route_rx_packet);
+       return NF_HOOK(NFPROTO_DECNET, NF_DN_PRE_ROUTING, skb, skb->dev, NULL,
+                      dn_route_rx_packet);
 
 drop_it:
        kfree_skb(skb);
@@ -551,7 +544,8 @@ static int dn_route_rx_short(struct sk_buff *skb)
        ptr += 2;
        cb->hops = *ptr & 0x3f;
 
-       return NF_HOOK(PF_DECnet, NF_DN_PRE_ROUTING, skb, skb->dev, NULL, dn_route_rx_packet);
+       return NF_HOOK(NFPROTO_DECNET, NF_DN_PRE_ROUTING, skb, skb->dev, NULL,
+                      dn_route_rx_packet);
 
 drop_it:
        kfree_skb(skb);
@@ -579,10 +573,13 @@ int dn_route_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type
 {
        struct dn_skb_cb *cb;
        unsigned char flags = 0;
-       __u16 len = dn_ntohs(*(__le16 *)skb->data);
+       __u16 len = le16_to_cpu(*(__le16 *)skb->data);
        struct dn_dev *dn = (struct dn_dev *)dev->dn_ptr;
        unsigned char padlen = 0;
 
+       if (!net_eq(dev_net(dev), &init_net))
+               goto dump_it;
+
        if (dn == NULL)
                goto dump_it;
 
@@ -650,16 +647,24 @@ int dn_route_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type
 
                switch(flags & DN_RT_CNTL_MSK) {
                        case DN_RT_PKT_HELO:
-                               return NF_HOOK(PF_DECnet, NF_DN_HELLO, skb, skb->dev, NULL, dn_route_ptp_hello);
+                               return NF_HOOK(NFPROTO_DECNET, NF_DN_HELLO,
+                                              skb, skb->dev, NULL,
+                                              dn_route_ptp_hello);
 
                        case DN_RT_PKT_L1RT:
                        case DN_RT_PKT_L2RT:
-                               return NF_HOOK(PF_DECnet, NF_DN_ROUTE, skb, skb->dev, NULL, dn_route_discard);
+                               return NF_HOOK(NFPROTO_DECNET, NF_DN_ROUTE,
+                                              skb, skb->dev, NULL,
+                                              dn_route_discard);
                        case DN_RT_PKT_ERTH:
-                               return NF_HOOK(PF_DECnet, NF_DN_HELLO, skb, skb->dev, NULL, dn_neigh_router_hello);
+                               return NF_HOOK(NFPROTO_DECNET, NF_DN_HELLO,
+                                              skb, skb->dev, NULL,
+                                              dn_neigh_router_hello);
 
                        case DN_RT_PKT_EEDH:
-                               return NF_HOOK(PF_DECnet, NF_DN_HELLO, skb, skb->dev, NULL, dn_neigh_endnode_hello);
+                               return NF_HOOK(NFPROTO_DECNET, NF_DN_HELLO,
+                                              skb, skb->dev, NULL,
+                                              dn_neigh_endnode_hello);
                }
        } else {
                if (dn->parms.state != DN_DEV_S_RU)
@@ -683,7 +688,7 @@ out:
 
 static int dn_output(struct sk_buff *skb)
 {
-       struct dst_entry *dst = skb->dst;
+       struct dst_entry *dst = skb_dst(skb);
        struct dn_route *rt = (struct dn_route *)dst;
        struct net_device *dev = dst->dev;
        struct dn_skb_cb *cb = DN_SKB_CB(skb);
@@ -708,7 +713,8 @@ static int dn_output(struct sk_buff *skb)
        cb->rt_flags |= DN_RT_F_IE;
        cb->hops = 0;
 
-       return NF_HOOK(PF_DECnet, NF_DN_LOCAL_OUT, skb, NULL, dev, neigh->output);
+       return NF_HOOK(NFPROTO_DECNET, NF_DN_LOCAL_OUT, skb, NULL, dev,
+                      neigh->output);
 
 error:
        if (net_ratelimit())
@@ -722,7 +728,7 @@ error:
 static int dn_forward(struct sk_buff *skb)
 {
        struct dn_skb_cb *cb = DN_SKB_CB(skb);
-       struct dst_entry *dst = skb->dst;
+       struct dst_entry *dst = skb_dst(skb);
        struct dn_dev *dn_db = dst->dev->dn_ptr;
        struct dn_route *rt;
        struct neighbour *neigh = dst->neighbour;
@@ -735,7 +741,7 @@ static int dn_forward(struct sk_buff *skb)
                goto drop;
 
        /* Ensure that we have enough space for headers */
-       rt = (struct dn_route *)skb->dst;
+       rt = (struct dn_route *)skb_dst(skb);
        header_len = dn_db->use_long ? 21 : 6;
        if (skb_cow(skb, LL_RESERVED_SPACE(rt->u.dst.dev)+header_len))
                goto drop;
@@ -757,7 +763,8 @@ static int dn_forward(struct sk_buff *skb)
        if (rt->rt_flags & RTCF_DOREDIRECT)
                cb->rt_flags |= DN_RT_F_IE;
 
-       return NF_HOOK(PF_DECnet, NF_DN_FORWARD, skb, dev, skb->dev, neigh->output);
+       return NF_HOOK(NFPROTO_DECNET, NF_DN_FORWARD, skb, dev, skb->dev,
+                      neigh->output);
 
 drop:
        kfree_skb(skb);
@@ -765,17 +772,6 @@ drop:
 }
 
 /*
- * Drop packet. This is used for endnodes and for
- * when we should not be forwarding packets from
- * this dest.
- */
-static int dn_blackhole(struct sk_buff *skb)
-{
-       kfree_skb(skb);
-       return NET_RX_DROP;
-}
-
-/*
  * Used to catch bugs. This should never normally get
  * called.
  */
@@ -785,12 +781,12 @@ static int dn_rt_bug(struct sk_buff *skb)
                struct dn_skb_cb *cb = DN_SKB_CB(skb);
 
                printk(KERN_DEBUG "dn_rt_bug: skb from:%04x to:%04x\n",
-                               dn_ntohs(cb->src), dn_ntohs(cb->dst));
+                               le16_to_cpu(cb->src), le16_to_cpu(cb->dst));
        }
 
        kfree_skb(skb);
 
-       return NET_RX_BAD;
+       return NET_RX_DROP;
 }
 
 static int dn_rt_set_next_hop(struct dn_route *rt, struct dn_fib_res *res)
@@ -816,19 +812,19 @@ static int dn_rt_set_next_hop(struct dn_route *rt, struct dn_fib_res *res)
                rt->u.dst.neighbour = n;
        }
 
-       if (rt->u.dst.metrics[RTAX_MTU-1] == 0 ||
-           rt->u.dst.metrics[RTAX_MTU-1] > rt->u.dst.dev->mtu)
+       if (dst_metric(&rt->u.dst, RTAX_MTU) == 0 ||
+           dst_metric(&rt->u.dst, RTAX_MTU) > rt->u.dst.dev->mtu)
                rt->u.dst.metrics[RTAX_MTU-1] = rt->u.dst.dev->mtu;
        mss = dn_mss_from_pmtu(dev, dst_mtu(&rt->u.dst));
-       if (rt->u.dst.metrics[RTAX_ADVMSS-1] == 0 ||
-           rt->u.dst.metrics[RTAX_ADVMSS-1] > mss)
+       if (dst_metric(&rt->u.dst, RTAX_ADVMSS) == 0 ||
+           dst_metric(&rt->u.dst, RTAX_ADVMSS) > mss)
                rt->u.dst.metrics[RTAX_ADVMSS-1] = mss;
        return 0;
 }
 
 static inline int dn_match_addr(__le16 addr1, __le16 addr2)
 {
-       __u16 tmp = dn_ntohs(addr1) ^ dn_ntohs(addr2);
+       __u16 tmp = le16_to_cpu(addr1) ^ le16_to_cpu(addr2);
        int match = 16;
        while(tmp) {
                tmp >>= 1;
@@ -883,7 +879,7 @@ static int dn_route_output_slow(struct dst_entry **pprt, const struct flowi *old
                                        .scope = RT_SCOPE_UNIVERSE,
                                     } },
                            .mark = oldflp->mark,
-                           .iif = loopback_dev.ifindex,
+                           .iif = init_net.loopback_dev->ifindex,
                            .oif = oldflp->oif };
        struct dn_route *rt = NULL;
        struct net_device *dev_out = NULL, *dev;
@@ -898,13 +894,13 @@ static int dn_route_output_slow(struct dst_entry **pprt, const struct flowi *old
        if (decnet_debug_level & 16)
                printk(KERN_DEBUG
                       "dn_route_output_slow: dst=%04x src=%04x mark=%d"
-                      " iif=%d oif=%d\n", dn_ntohs(oldflp->fld_dst),
-                      dn_ntohs(oldflp->fld_src),
-                      oldflp->mark, loopback_dev.ifindex, oldflp->oif);
+                      " iif=%d oif=%d\n", le16_to_cpu(oldflp->fld_dst),
+                      le16_to_cpu(oldflp->fld_src),
+                      oldflp->mark, init_net.loopback_dev->ifindex, oldflp->oif);
 
        /* If we have an output interface, verify its a DECnet device */
        if (oldflp->oif) {
-               dev_out = dev_get_by_index(oldflp->oif);
+               dev_out = dev_get_by_index(&init_net, oldflp->oif);
                err = -ENODEV;
                if (dev_out && dev_out->dn_ptr == NULL) {
                        dev_put(dev_out);
@@ -924,8 +920,8 @@ static int dn_route_output_slow(struct dst_entry **pprt, const struct flowi *old
                        dev_put(dev_out);
                        goto out;
                }
-               read_lock(&dev_base_lock);
-               for_each_netdev(dev) {
+               rcu_read_lock();
+               for_each_netdev_rcu(&init_net, dev) {
                        if (!dev->dn_ptr)
                                continue;
                        if (!dn_dev_islocal(dev, oldflp->fld_src))
@@ -938,7 +934,7 @@ static int dn_route_output_slow(struct dst_entry **pprt, const struct flowi *old
                        dev_out = dev;
                        break;
                }
-               read_unlock(&dev_base_lock);
+               rcu_read_unlock();
                if (dev_out == NULL)
                        goto out;
                dev_hold(dev_out);
@@ -953,7 +949,7 @@ source_ok:
                err = -EADDRNOTAVAIL;
                if (dev_out)
                        dev_put(dev_out);
-               dev_out = &loopback_dev;
+               dev_out = init_net.loopback_dev;
                dev_hold(dev_out);
                if (!fl.fld_dst) {
                        fl.fld_dst =
@@ -962,7 +958,7 @@ source_ok:
                        if (!fl.fld_dst)
                                goto out;
                }
-               fl.oif = loopback_dev.ifindex;
+               fl.oif = init_net.loopback_dev->ifindex;
                res.type = RTN_LOCAL;
                goto make_route;
        }
@@ -971,7 +967,7 @@ source_ok:
                printk(KERN_DEBUG
                       "dn_route_output_slow: initial checks complete."
                       " dst=%o4x src=%04x oif=%d try_hard=%d\n",
-                      dn_ntohs(fl.fld_dst), dn_ntohs(fl.fld_src),
+                      le16_to_cpu(fl.fld_dst), le16_to_cpu(fl.fld_src),
                       fl.oif, try_hard);
 
        /*
@@ -995,7 +991,7 @@ source_ok:
                 * here
                 */
                if (!try_hard) {
-                       neigh = neigh_lookup_nodev(&dn_neigh_table, &fl.fld_dst);
+                       neigh = neigh_lookup_nodev(&dn_neigh_table, &init_net, &fl.fld_dst);
                        if (neigh) {
                                if ((oldflp->oif &&
                                    (neigh->dev->ifindex != oldflp->oif)) ||
@@ -1008,7 +1004,7 @@ source_ok:
                                        if (dev_out)
                                                dev_put(dev_out);
                                        if (dn_dev_islocal(neigh->dev, fl.fld_dst)) {
-                                               dev_out = &loopback_dev;
+                                               dev_out = init_net.loopback_dev;
                                                res.type = RTN_LOCAL;
                                        } else {
                                                dev_out = neigh->dev;
@@ -1029,7 +1025,7 @@ source_ok:
                /* Possible improvement - check all devices for local addr */
                if (dn_dev_islocal(dev_out, fl.fld_dst)) {
                        dev_put(dev_out);
-                       dev_out = &loopback_dev;
+                       dev_out = init_net.loopback_dev;
                        dev_hold(dev_out);
                        res.type = RTN_LOCAL;
                        goto select_source;
@@ -1065,7 +1061,7 @@ select_source:
                        fl.fld_src = fl.fld_dst;
                if (dev_out)
                        dev_put(dev_out);
-               dev_out = &loopback_dev;
+               dev_out = init_net.loopback_dev;
                dev_hold(dev_out);
                fl.oif = dev_out->ifindex;
                if (res.fi)
@@ -1171,16 +1167,14 @@ static int __dn_route_output_key(struct dst_entry **pprt, const struct flowi *fl
 
        if (!(flags & MSG_TRYHARD)) {
                rcu_read_lock_bh();
-               for(rt = rcu_dereference(dn_rt_hash_table[hash].chain); rt;
-                       rt = rcu_dereference(rt->u.dst.dn_next)) {
+               for (rt = rcu_dereference_bh(dn_rt_hash_table[hash].chain); rt;
+                       rt = rcu_dereference_bh(rt->u.dst.dn_next)) {
                        if ((flp->fld_dst == rt->fl.fld_dst) &&
                            (flp->fld_src == rt->fl.fld_src) &&
                            (flp->mark == rt->fl.mark) &&
                            (rt->fl.iif == 0) &&
                            (rt->fl.oif == flp->oif)) {
-                               rt->u.dst.lastuse = jiffies;
-                               dst_hold(&rt->u.dst);
-                               rt->u.dst.__use++;
+                               dst_use(&rt->u.dst, jiffies);
                                rcu_read_unlock_bh();
                                *pprt = &rt->u.dst;
                                return 0;
@@ -1198,7 +1192,7 @@ static int dn_route_output_key(struct dst_entry **pprt, struct flowi *flp, int f
 
        err = __dn_route_output_key(pprt, flp, flags);
        if (err == 0 && flp->proto) {
-               err = xfrm_lookup(pprt, flp, NULL, 0);
+               err = xfrm_lookup(&init_net, pprt, flp, NULL, 0);
        }
        return err;
 }
@@ -1209,7 +1203,8 @@ int dn_route_output_sock(struct dst_entry **pprt, struct flowi *fl, struct sock
 
        err = __dn_route_output_key(pprt, fl, flags & MSG_TRYHARD);
        if (err == 0 && fl->proto) {
-               err = xfrm_lookup(pprt, fl, sk, !(flags & MSG_DONTWAIT));
+               err = xfrm_lookup(&init_net, pprt, fl, sk,
+                                (flags & MSG_DONTWAIT) ? 0 : XFRM_LOOKUP_WAIT);
        }
        return err;
 }
@@ -1398,7 +1393,7 @@ make_route:
                default:
                case RTN_UNREACHABLE:
                case RTN_BLACKHOLE:
-                       rt->u.dst.input = dn_blackhole;
+                       rt->u.dst.input = dst_discard;
        }
        rt->rt_flags = flags;
        if (rt->u.dst.dev)
@@ -1409,7 +1404,8 @@ make_route:
                goto e_neighbour;
 
        hash = dn_hash(rt->fl.fld_src, rt->fl.fld_dst);
-       dn_insert_route(rt, hash, (struct dn_route **)&skb->dst);
+       dn_insert_route(rt, hash, &rt);
+       skb_dst_set(skb, &rt->u.dst);
 
 done:
        if (neigh)
@@ -1435,13 +1431,13 @@ e_neighbour:
        goto done;
 }
 
-int dn_route_input(struct sk_buff *skb)
+static int dn_route_input(struct sk_buff *skb)
 {
        struct dn_route *rt;
        struct dn_skb_cb *cb = DN_SKB_CB(skb);
        unsigned hash = dn_hash(cb->src, cb->dst);
 
-       if (skb->dst)
+       if (skb_dst(skb))
                return 0;
 
        rcu_read_lock();
@@ -1452,11 +1448,9 @@ int dn_route_input(struct sk_buff *skb)
                    (rt->fl.oif == 0) &&
                    (rt->fl.mark == skb->mark) &&
                    (rt->fl.iif == cb->iif)) {
-                       rt->u.dst.lastuse = jiffies;
-                       dst_hold(&rt->u.dst);
-                       rt->u.dst.__use++;
+                       dst_use(&rt->u.dst, jiffies);
                        rcu_read_unlock();
-                       skb->dst = (struct dst_entry *)rt;
+                       skb_dst_set(skb, (struct dst_entry *)rt);
                        return 0;
                }
        }
@@ -1468,7 +1462,7 @@ int dn_route_input(struct sk_buff *skb)
 static int dn_rt_fill_info(struct sk_buff *skb, u32 pid, u32 seq,
                           int event, int nowait, unsigned int flags)
 {
-       struct dn_route *rt = (struct dn_route *)skb->dst;
+       struct dn_route *rt = (struct dn_route *)skb_dst(skb);
        struct rtmsg *r;
        struct nlmsghdr *nlh;
        unsigned char *b = skb_tail_pointer(skb);
@@ -1526,6 +1520,7 @@ rtattr_failure:
  */
 static int dn_cache_getroute(struct sk_buff *in_skb, struct nlmsghdr *nlh, void *arg)
 {
+       struct net *net = sock_net(in_skb->sk);
        struct rtattr **rta = arg;
        struct rtmsg *rtm = NLMSG_DATA(nlh);
        struct dn_route *rt = NULL;
@@ -1534,6 +1529,9 @@ static int dn_cache_getroute(struct sk_buff *in_skb, struct nlmsghdr *nlh, void
        struct sk_buff *skb;
        struct flowi fl;
 
+       if (!net_eq(net, &init_net))
+               return -EINVAL;
+
        memset(&fl, 0, sizeof(fl));
        fl.proto = DNPROTO_NSP;
 
@@ -1552,7 +1550,7 @@ static int dn_cache_getroute(struct sk_buff *in_skb, struct nlmsghdr *nlh, void
 
        if (fl.iif) {
                struct net_device *dev;
-               if ((dev = dev_get_by_index(fl.iif)) == NULL) {
+               if ((dev = dev_get_by_index(&init_net, fl.iif)) == NULL) {
                        kfree_skb(skb);
                        return -ENODEV;
                }
@@ -1561,7 +1559,7 @@ static int dn_cache_getroute(struct sk_buff *in_skb, struct nlmsghdr *nlh, void
                        kfree_skb(skb);
                        return -ENODEV;
                }
-               skb->protocol = __constant_htons(ETH_P_DNA_RT);
+               skb->protocol = htons(ETH_P_DNA_RT);
                skb->dev = dev;
                cb->src = fl.fld_src;
                cb->dst = fl.fld_dst;
@@ -1569,7 +1567,7 @@ static int dn_cache_getroute(struct sk_buff *in_skb, struct nlmsghdr *nlh, void
                err = dn_route_input(skb);
                local_bh_enable();
                memset(cb, 0, sizeof(struct dn_skb_cb));
-               rt = (struct dn_route *)skb->dst;
+               rt = (struct dn_route *)skb_dst(skb);
                if (!err && -rt->u.dst.error)
                        err = rt->u.dst.error;
        } else {
@@ -1585,7 +1583,7 @@ static int dn_cache_getroute(struct sk_buff *in_skb, struct nlmsghdr *nlh, void
        skb->dev = NULL;
        if (err)
                goto out_free;
-       skb->dst = &rt->u.dst;
+       skb_dst_set(skb, &rt->u.dst);
        if (rtm->rtm_flags & RTM_F_NOTIFY)
                rt->rt_flags |= RTCF_NOTIFY;
 
@@ -1598,7 +1596,7 @@ static int dn_cache_getroute(struct sk_buff *in_skb, struct nlmsghdr *nlh, void
                goto out_free;
        }
 
-       return rtnl_unicast(skb, NETLINK_CB(in_skb).pid);
+       return rtnl_unicast(skb, &init_net, NETLINK_CB(in_skb).pid);
 
 out_free:
        kfree_skb(skb);
@@ -1611,10 +1609,14 @@ out_free:
  */
 int dn_cache_dump(struct sk_buff *skb, struct netlink_callback *cb)
 {
+       struct net *net = sock_net(skb->sk);
        struct dn_route *rt;
        int h, s_h;
        int idx, s_idx;
 
+       if (!net_eq(net, &init_net))
+               return 0;
+
        if (NLMSG_PAYLOAD(cb->nlh, 0) < sizeof(struct rtmsg))
                return -EINVAL;
        if (!(((struct rtmsg *)NLMSG_DATA(cb->nlh))->rtm_flags&RTM_F_CLONED))
@@ -1628,20 +1630,20 @@ int dn_cache_dump(struct sk_buff *skb, struct netlink_callback *cb)
                if (h > s_h)
                        s_idx = 0;
                rcu_read_lock_bh();
-               for(rt = rcu_dereference(dn_rt_hash_table[h].chain), idx = 0;
+               for(rt = rcu_dereference_bh(dn_rt_hash_table[h].chain), idx = 0;
                        rt;
-                       rt = rcu_dereference(rt->u.dst.dn_next), idx++) {
+                       rt = rcu_dereference_bh(rt->u.dst.dn_next), idx++) {
                        if (idx < s_idx)
                                continue;
-                       skb->dst = dst_clone(&rt->u.dst);
+                       skb_dst_set(skb, dst_clone(&rt->u.dst));
                        if (dn_rt_fill_info(skb, NETLINK_CB(cb->skb).pid,
                                        cb->nlh->nlmsg_seq, RTM_NEWROUTE,
                                        1, NLM_F_MULTI) <= 0) {
-                               dst_release(xchg(&skb->dst, NULL));
+                               skb_dst_drop(skb);
                                rcu_read_unlock_bh();
                                goto done;
                        }
-                       dst_release(xchg(&skb->dst, NULL));
+                       skb_dst_drop(skb);
                }
                rcu_read_unlock_bh();
        }
@@ -1664,7 +1666,7 @@ static struct dn_route *dn_rt_cache_get_first(struct seq_file *seq)
 
        for(s->bucket = dn_rt_hash_mask; s->bucket >= 0; --s->bucket) {
                rcu_read_lock_bh();
-               rt = dn_rt_hash_table[s->bucket].chain;
+               rt = rcu_dereference_bh(dn_rt_hash_table[s->bucket].chain);
                if (rt)
                        break;
                rcu_read_unlock_bh();
@@ -1674,7 +1676,7 @@ static struct dn_route *dn_rt_cache_get_first(struct seq_file *seq)
 
 static struct dn_route *dn_rt_cache_get_next(struct seq_file *seq, struct dn_route *rt)
 {
-       struct dn_rt_cache_iter_state *s = rcu_dereference(seq->private);
+       struct dn_rt_cache_iter_state *s = seq->private;
 
        rt = rt->u.dst.dn_next;
        while(!rt) {
@@ -1684,7 +1686,7 @@ static struct dn_route *dn_rt_cache_get_next(struct seq_file *seq, struct dn_rou
                rcu_read_lock_bh();
                rt = dn_rt_hash_table[s->bucket].chain;
        }
-       return rt;
+       return rcu_dereference_bh(rt);
 }
 
 static void *dn_rt_cache_seq_start(struct seq_file *seq, loff_t *pos)
@@ -1718,8 +1720,8 @@ static int dn_rt_cache_seq_show(struct seq_file *seq, void *v)
 
        seq_printf(seq, "%-8s %-7s %-7s %04d %04d %04d\n",
                        rt->u.dst.dev ? rt->u.dst.dev->name : "*",
-                       dn_addr2asc(dn_ntohs(rt->rt_daddr), buf1),
-                       dn_addr2asc(dn_ntohs(rt->rt_saddr), buf2),
+                       dn_addr2asc(le16_to_cpu(rt->rt_daddr), buf1),
+                       dn_addr2asc(le16_to_cpu(rt->rt_saddr), buf2),
                        atomic_read(&rt->u.dst.__refcnt),
                        rt->u.dst.__use,
                        (int) dst_metric(&rt->u.dst, RTAX_RTT));
@@ -1735,23 +1737,8 @@ static const struct seq_operations dn_rt_cache_seq_ops = {
 
 static int dn_rt_cache_seq_open(struct inode *inode, struct file *file)
 {
-       struct seq_file *seq;
-       int rc = -ENOMEM;
-       struct dn_rt_cache_iter_state *s;
-
-       s = kzalloc(sizeof(*s), GFP_KERNEL);
-       if (!s)
-               goto out;
-       rc = seq_open(file, &dn_rt_cache_seq_ops);
-       if (rc)
-               goto out_kfree;
-       seq             = file->private_data;
-       seq->private    = s;
-out:
-       return rc;
-out_kfree:
-       kfree(s);
-       goto out;
+       return seq_open_private(file, &dn_rt_cache_seq_ops,
+                       sizeof(struct dn_rt_cache_iter_state));
 }
 
 static const struct file_operations dn_rt_cache_seq_fops = {
@@ -1771,12 +1758,11 @@ void __init dn_route_init(void)
        dn_dst_ops.kmem_cachep =
                kmem_cache_create("dn_dst_cache", sizeof(struct dn_route), 0,
                                  SLAB_HWCACHE_ALIGN|SLAB_PANIC, NULL);
-       init_timer(&dn_route_timer);
-       dn_route_timer.function = dn_dst_check_expire;
+       setup_timer(&dn_route_timer, dn_dst_check_expire, 0);
        dn_route_timer.expires = jiffies + decnet_dst_gc_interval * HZ;
        add_timer(&dn_route_timer);
 
-       goal = num_physpages >> (26 - PAGE_SHIFT);
+       goal = totalram_pages >> (26 - PAGE_SHIFT);
 
        for(order = 0; (1UL << order) < goal; order++)
                /* NOTHING */;
@@ -1814,7 +1800,7 @@ void __init dn_route_init(void)
 
        dn_dst_ops.gc_thresh = (dn_rt_hash_mask + 1);
 
-       proc_net_fops_create("decnet_cache", S_IRUGO, &dn_rt_cache_seq_fops);
+       proc_net_fops_create(&init_net, "decnet_cache", S_IRUGO, &dn_rt_cache_seq_fops);
 
 #ifdef CONFIG_DECNET_ROUTER
        rtnl_register(PF_DECnet, RTM_GETROUTE, dn_cache_getroute, dn_fib_dump);
@@ -1829,6 +1815,6 @@ void __exit dn_route_cleanup(void)
        del_timer(&dn_route_timer);
        dn_run_flush(0);
 
-       proc_net_remove("decnet_cache");
+       proc_net_remove(&init_net, "decnet_cache");
 }