rtnetlink: speedup rtnl_dump_ifinfo()
[safe/jmp/linux-2.6] / net / core / dev.c
index a09bf65..e7bada1 100644 (file)
 #include <linux/in.h>
 #include <linux/jhash.h>
 #include <linux/random.h>
-#include <trace/napi.h>
+#include <trace/events/napi.h>
 
 #include "net-sysfs.h"
 
@@ -191,21 +191,17 @@ static struct list_head ptype_all __read_mostly;  /* Taps */
  * semaphore held.
  */
 DEFINE_RWLOCK(dev_base_lock);
-
 EXPORT_SYMBOL(dev_base_lock);
 
-#define NETDEV_HASHBITS        8
-#define NETDEV_HASHENTRIES (1 << NETDEV_HASHBITS)
-
 static inline struct hlist_head *dev_name_hash(struct net *net, const char *name)
 {
        unsigned hash = full_name_hash(name, strnlen(name, IFNAMSIZ));
-       return &net->dev_name_head[hash & ((1 << NETDEV_HASHBITS) - 1)];
+       return &net->dev_name_head[hash & (NETDEV_HASHENTRIES - 1)];
 }
 
 static inline struct hlist_head *dev_index_hash(struct net *net, int ifindex)
 {
-       return &net->dev_index_head[ifindex & ((1 << NETDEV_HASHBITS) - 1)];
+       return &net->dev_index_head[ifindex & (NETDEV_HASHENTRIES - 1)];
 }
 
 /* Device list insertion */
@@ -248,6 +244,7 @@ static RAW_NOTIFIER_HEAD(netdev_chain);
  */
 
 DEFINE_PER_CPU(struct softnet_data, softnet_data);
+EXPORT_PER_CPU_SYMBOL(softnet_data);
 
 #ifdef CONFIG_LOCKDEP
 /*
@@ -269,10 +266,10 @@ static const unsigned short netdev_lock_type[] =
         ARPHRD_IRDA, ARPHRD_FCPP, ARPHRD_FCAL, ARPHRD_FCPL,
         ARPHRD_FCFABRIC, ARPHRD_IEEE802_TR, ARPHRD_IEEE80211,
         ARPHRD_IEEE80211_PRISM, ARPHRD_IEEE80211_RADIOTAP, ARPHRD_PHONET,
-        ARPHRD_PHONET_PIPE, ARPHRD_IEEE802154, ARPHRD_IEEE802154_PHY,
+        ARPHRD_PHONET_PIPE, ARPHRD_IEEE802154,
         ARPHRD_VOID, ARPHRD_NONE};
 
-static const char *netdev_lock_name[] =
+static const char *const netdev_lock_name[] =
        {"_xmit_NETROM", "_xmit_ETHER", "_xmit_EETHER", "_xmit_AX25",
         "_xmit_PRONET", "_xmit_CHAOS", "_xmit_IEEE802", "_xmit_ARCNET",
         "_xmit_APPLETLK", "_xmit_DLCI", "_xmit_ATM", "_xmit_METRICOM",
@@ -287,7 +284,7 @@ static const char *netdev_lock_name[] =
         "_xmit_IRDA", "_xmit_FCPP", "_xmit_FCAL", "_xmit_FCPL",
         "_xmit_FCFABRIC", "_xmit_IEEE802_TR", "_xmit_IEEE80211",
         "_xmit_IEEE80211_PRISM", "_xmit_IEEE80211_RADIOTAP", "_xmit_PHONET",
-        "_xmit_PHONET_PIPE", "_xmit_IEEE802154", "_xmit_IEEE802154_PHY",
+        "_xmit_PHONET_PIPE", "_xmit_IEEE802154",
         "_xmit_VOID", "_xmit_NONE"};
 
 static struct lock_class_key netdev_xmit_lock_key[ARRAY_SIZE(netdev_lock_type)];
@@ -381,6 +378,7 @@ void dev_add_pack(struct packet_type *pt)
        }
        spin_unlock_bh(&ptype_lock);
 }
+EXPORT_SYMBOL(dev_add_pack);
 
 /**
  *     __dev_remove_pack        - remove packet handler
@@ -418,6 +416,8 @@ void __dev_remove_pack(struct packet_type *pt)
 out:
        spin_unlock_bh(&ptype_lock);
 }
+EXPORT_SYMBOL(__dev_remove_pack);
+
 /**
  *     dev_remove_pack  - remove packet handler
  *     @pt: packet type declaration
@@ -436,6 +436,7 @@ void dev_remove_pack(struct packet_type *pt)
 
        synchronize_net();
 }
+EXPORT_SYMBOL(dev_remove_pack);
 
 /******************************************************************************
 
@@ -499,6 +500,7 @@ int netdev_boot_setup_check(struct net_device *dev)
        }
        return 0;
 }
+EXPORT_SYMBOL(netdev_boot_setup_check);
 
 
 /**
@@ -591,6 +593,7 @@ struct net_device *__dev_get_by_name(struct net *net, const char *name)
        }
        return NULL;
 }
+EXPORT_SYMBOL(__dev_get_by_name);
 
 /**
  *     dev_get_by_name         - find a device by its name
@@ -615,6 +618,7 @@ struct net_device *dev_get_by_name(struct net *net, const char *name)
        read_unlock(&dev_base_lock);
        return dev;
 }
+EXPORT_SYMBOL(dev_get_by_name);
 
 /**
  *     __dev_get_by_index - find a device by its ifindex
@@ -640,6 +644,7 @@ struct net_device *__dev_get_by_index(struct net *net, int ifindex)
        }
        return NULL;
 }
+EXPORT_SYMBOL(__dev_get_by_index);
 
 
 /**
@@ -664,6 +669,7 @@ struct net_device *dev_get_by_index(struct net *net, int ifindex)
        read_unlock(&dev_base_lock);
        return dev;
 }
+EXPORT_SYMBOL(dev_get_by_index);
 
 /**
  *     dev_getbyhwaddr - find a device by its hardware address
@@ -693,7 +699,6 @@ struct net_device *dev_getbyhwaddr(struct net *net, unsigned short type, char *h
 
        return NULL;
 }
-
 EXPORT_SYMBOL(dev_getbyhwaddr);
 
 struct net_device *__dev_getfirstbyhwtype(struct net *net, unsigned short type)
@@ -707,7 +712,6 @@ struct net_device *__dev_getfirstbyhwtype(struct net *net, unsigned short type)
 
        return NULL;
 }
-
 EXPORT_SYMBOL(__dev_getfirstbyhwtype);
 
 struct net_device *dev_getfirstbyhwtype(struct net *net, unsigned short type)
@@ -721,7 +725,6 @@ struct net_device *dev_getfirstbyhwtype(struct net *net, unsigned short type)
        rtnl_unlock();
        return dev;
 }
-
 EXPORT_SYMBOL(dev_getfirstbyhwtype);
 
 /**
@@ -736,7 +739,8 @@ EXPORT_SYMBOL(dev_getfirstbyhwtype);
  *     dev_put to indicate they have finished with it.
  */
 
-struct net_device * dev_get_by_flags(struct net *net, unsigned short if_flags, unsigned short mask)
+struct net_device *dev_get_by_flags(struct net *net, unsigned short if_flags,
+                                   unsigned short mask)
 {
        struct net_device *dev, *ret;
 
@@ -752,6 +756,7 @@ struct net_device * dev_get_by_flags(struct net *net, unsigned short if_flags, u
        read_unlock(&dev_base_lock);
        return ret;
 }
+EXPORT_SYMBOL(dev_get_by_flags);
 
 /**
  *     dev_valid_name - check if name is okay for network device
@@ -777,6 +782,7 @@ int dev_valid_name(const char *name)
        }
        return 1;
 }
+EXPORT_SYMBOL(dev_valid_name);
 
 /**
  *     __dev_alloc_name - allocate a name for a device
@@ -870,6 +876,7 @@ int dev_alloc_name(struct net_device *dev, const char *name)
                strlcpy(dev->name, buf, IFNAMSIZ);
        return ret;
 }
+EXPORT_SYMBOL(dev_alloc_name);
 
 
 /**
@@ -906,8 +913,7 @@ int dev_change_name(struct net_device *dev, const char *newname)
                err = dev_alloc_name(dev, newname);
                if (err < 0)
                        return err;
-       }
-       else if (__dev_get_by_name(net, newname))
+       } else if (__dev_get_by_name(net, newname))
                return -EEXIST;
        else
                strlcpy(dev->name, newname, IFNAMSIZ);
@@ -970,7 +976,7 @@ int dev_set_alias(struct net_device *dev, const char *alias, size_t len)
                return 0;
        }
 
-       dev->ifalias = krealloc(dev->ifalias, len+1, GFP_KERNEL);
+       dev->ifalias = krealloc(dev->ifalias, len + 1, GFP_KERNEL);
        if (!dev->ifalias)
                return -ENOMEM;
 
@@ -1006,10 +1012,11 @@ void netdev_state_change(struct net_device *dev)
                rtmsg_ifinfo(RTM_NEWLINK, dev, 0);
        }
 }
+EXPORT_SYMBOL(netdev_state_change);
 
-void netdev_bonding_change(struct net_device *dev)
+void netdev_bonding_change(struct net_device *dev, unsigned long event)
 {
-       call_netdevice_notifiers(NETDEV_BONDING_FAILOVER, dev);
+       call_netdevice_notifiers(event, dev);
 }
 EXPORT_SYMBOL(netdev_bonding_change);
 
@@ -1031,9 +1038,10 @@ void dev_load(struct net *net, const char *name)
        dev = __dev_get_by_name(net, name);
        read_unlock(&dev_base_lock);
 
-       if (!dev && capable(CAP_SYS_MODULE))
+       if (!dev && capable(CAP_NET_ADMIN))
                request_module("%s", name);
 }
+EXPORT_SYMBOL(dev_load);
 
 /**
  *     dev_open        - prepare an interface for use.
@@ -1118,6 +1126,7 @@ int dev_open(struct net_device *dev)
 
        return ret;
 }
+EXPORT_SYMBOL(dev_open);
 
 /**
  *     dev_close - shutdown an interface.
@@ -1184,6 +1193,7 @@ int dev_close(struct net_device *dev)
 
        return 0;
 }
+EXPORT_SYMBOL(dev_close);
 
 
 /**
@@ -1279,6 +1289,7 @@ rollback:
        raw_notifier_chain_unregister(&netdev_chain, nb);
        goto unlock;
 }
+EXPORT_SYMBOL(register_netdevice_notifier);
 
 /**
  *     unregister_netdevice_notifier - unregister a network notifier block
@@ -1299,6 +1310,7 @@ int unregister_netdevice_notifier(struct notifier_block *nb)
        rtnl_unlock();
        return err;
 }
+EXPORT_SYMBOL(unregister_netdevice_notifier);
 
 /**
  *     call_netdevice_notifiers - call all network notifier blocks
@@ -1321,11 +1333,13 @@ void net_enable_timestamp(void)
 {
        atomic_inc(&netstamp_needed);
 }
+EXPORT_SYMBOL(net_enable_timestamp);
 
 void net_disable_timestamp(void)
 {
        atomic_dec(&netstamp_needed);
 }
+EXPORT_SYMBOL(net_disable_timestamp);
 
 static inline void net_timestamp(struct sk_buff *skb)
 {
@@ -1359,7 +1373,7 @@ static void dev_queue_xmit_nit(struct sk_buff *skb, struct net_device *dev)
                if ((ptype->dev == dev || !ptype->dev) &&
                    (ptype->af_packet_priv == NULL ||
                     (struct sock *)ptype->af_packet_priv != skb->sk)) {
-                       struct sk_buff *skb2= skb_clone(skb, GFP_ATOMIC);
+                       struct sk_buff *skb2 = skb_clone(skb, GFP_ATOMIC);
                        if (!skb2)
                                break;
 
@@ -1527,6 +1541,7 @@ out_set_summed:
 out:
        return ret;
 }
+EXPORT_SYMBOL(skb_checksum_help);
 
 /**
  *     skb_gso_segment - Perform segmentation on skb.
@@ -1589,7 +1604,6 @@ struct sk_buff *skb_gso_segment(struct sk_buff *skb, int features)
 
        return segs;
 }
-
 EXPORT_SYMBOL(skb_gso_segment);
 
 /* Take action when hardware reception checksum errors are detected. */
@@ -1704,7 +1718,7 @@ int dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev,
                        skb_dst_drop(skb);
 
                rc = ops->ndo_start_xmit(skb, dev);
-               if (rc == 0)
+               if (rc == NETDEV_TX_OK)
                        txq_trans_update(txq);
                /*
                 * TODO: if skb_orphan() was called by
@@ -1730,7 +1744,7 @@ gso:
                skb->next = nskb->next;
                nskb->next = NULL;
                rc = ops->ndo_start_xmit(nskb, dev);
-               if (unlikely(rc)) {
+               if (unlikely(rc != NETDEV_TX_OK)) {
                        nskb->next = skb->next;
                        skb->next = nskb;
                        return rc;
@@ -1744,7 +1758,7 @@ gso:
 
 out_kfree_skb:
        kfree_skb(skb);
-       return 0;
+       return NETDEV_TX_OK;
 }
 
 static u32 skb_tx_hashrnd;
@@ -1755,7 +1769,7 @@ u16 skb_tx_hash(const struct net_device *dev, const struct sk_buff *skb)
 
        if (skb_rx_queue_recorded(skb)) {
                hash = skb_get_rx_queue(skb);
-               while (unlikely (hash >= dev->real_num_tx_queues))
+               while (unlikely(hash >= dev->real_num_tx_queues))
                        hash -= dev->real_num_tx_queues;
                return hash;
        }
@@ -1774,18 +1788,64 @@ EXPORT_SYMBOL(skb_tx_hash);
 static struct netdev_queue *dev_pick_tx(struct net_device *dev,
                                        struct sk_buff *skb)
 {
-       const struct net_device_ops *ops = dev->netdev_ops;
-       u16 queue_index = 0;
+       u16 queue_index;
+       struct sock *sk = skb->sk;
+
+       if (sk_tx_queue_recorded(sk)) {
+               queue_index = sk_tx_queue_get(sk);
+       } else {
+               const struct net_device_ops *ops = dev->netdev_ops;
+
+               if (ops->ndo_select_queue) {
+                       queue_index = ops->ndo_select_queue(dev, skb);
+               } else {
+                       queue_index = 0;
+                       if (dev->real_num_tx_queues > 1)
+                               queue_index = skb_tx_hash(dev, skb);
 
-       if (ops->ndo_select_queue)
-               queue_index = ops->ndo_select_queue(dev, skb);
-       else if (dev->real_num_tx_queues > 1)
-               queue_index = skb_tx_hash(dev, skb);
+                       if (sk && sk->sk_dst_cache)
+                               sk_tx_queue_set(sk, queue_index);
+               }
+       }
 
        skb_set_queue_mapping(skb, queue_index);
        return netdev_get_tx_queue(dev, queue_index);
 }
 
+static inline int __dev_xmit_skb(struct sk_buff *skb, struct Qdisc *q,
+                                struct net_device *dev,
+                                struct netdev_queue *txq)
+{
+       spinlock_t *root_lock = qdisc_lock(q);
+       int rc;
+
+       spin_lock(root_lock);
+       if (unlikely(test_bit(__QDISC_STATE_DEACTIVATED, &q->state))) {
+               kfree_skb(skb);
+               rc = NET_XMIT_DROP;
+       } else if ((q->flags & TCQ_F_CAN_BYPASS) && !qdisc_qlen(q) &&
+                  !test_and_set_bit(__QDISC_STATE_RUNNING, &q->state)) {
+               /*
+                * This is a work-conserving queue; there are no old skbs
+                * waiting to be sent out; and the qdisc is not running -
+                * xmit the skb directly.
+                */
+               __qdisc_update_bstats(q, skb->len);
+               if (sch_direct_xmit(skb, q, dev, txq, root_lock))
+                       __qdisc_run(q);
+               else
+                       clear_bit(__QDISC_STATE_RUNNING, &q->state);
+
+               rc = NET_XMIT_SUCCESS;
+       } else {
+               rc = qdisc_enqueue_root(skb, q);
+               qdisc_run(q);
+       }
+       spin_unlock(root_lock);
+
+       return rc;
+}
+
 /**
  *     dev_queue_xmit - transmit a buffer
  *     @skb: buffer to transmit
@@ -1856,22 +1916,10 @@ gso:
        q = rcu_dereference(txq->qdisc);
 
 #ifdef CONFIG_NET_CLS_ACT
-       skb->tc_verd = SET_TC_AT(skb->tc_verd,AT_EGRESS);
+       skb->tc_verd = SET_TC_AT(skb->tc_verd, AT_EGRESS);
 #endif
        if (q->enqueue) {
-               spinlock_t *root_lock = qdisc_lock(q);
-
-               spin_lock(root_lock);
-
-               if (unlikely(test_bit(__QDISC_STATE_DEACTIVATED, &q->state))) {
-                       kfree_skb(skb);
-                       rc = NET_XMIT_DROP;
-               } else {
-                       rc = qdisc_enqueue_root(skb, q);
-                       qdisc_run(q);
-               }
-               spin_unlock(root_lock);
-
+               rc = __dev_xmit_skb(skb, q, dev, txq);
                goto out;
        }
 
@@ -1895,7 +1943,7 @@ gso:
                        HARD_TX_LOCK(dev, txq, cpu);
 
                        if (!netif_tx_queue_stopped(txq)) {
-                               rc = 0;
+                               rc = NET_XMIT_SUCCESS;
                                if (!dev_hard_start_xmit(skb, dev, txq)) {
                                        HARD_TX_UNLOCK(dev, txq);
                                        goto out;
@@ -1924,6 +1972,7 @@ out:
        rcu_read_unlock_bh();
        return rc;
 }
+EXPORT_SYMBOL(dev_queue_xmit);
 
 
 /*=======================================================================
@@ -1990,6 +2039,7 @@ enqueue:
        kfree_skb(skb);
        return NET_RX_DROP;
 }
+EXPORT_SYMBOL(netif_rx);
 
 int netif_rx_ni(struct sk_buff *skb)
 {
@@ -2003,7 +2053,6 @@ int netif_rx_ni(struct sk_buff *skb)
 
        return err;
 }
-
 EXPORT_SYMBOL(netif_rx_ni);
 
 static void net_tx_action(struct softirq_action *h)
@@ -2071,11 +2120,13 @@ static inline int deliver_skb(struct sk_buff *skb,
 }
 
 #if defined(CONFIG_BRIDGE) || defined (CONFIG_BRIDGE_MODULE)
-/* These hooks defined here for ATM */
-struct net_bridge;
-struct net_bridge_fdb_entry *(*br_fdb_get_hook)(struct net_bridge *br,
-                                               unsigned char *addr);
-void (*br_fdb_put_hook)(struct net_bridge_fdb_entry *ent) __read_mostly;
+
+#if defined(CONFIG_ATM_LANE) || defined(CONFIG_ATM_LANE_MODULE)
+/* This hook is defined here for ATM LANE */
+int (*br_fdb_test_addr_hook)(struct net_device *dev,
+                            unsigned char *addr) __read_mostly;
+EXPORT_SYMBOL_GPL(br_fdb_test_addr_hook);
+#endif
 
 /*
  * If bridge module is loaded call bridging hook.
@@ -2083,6 +2134,8 @@ void (*br_fdb_put_hook)(struct net_bridge_fdb_entry *ent) __read_mostly;
  */
 struct sk_buff *(*br_handle_frame_hook)(struct net_bridge_port *p,
                                        struct sk_buff *skb) __read_mostly;
+EXPORT_SYMBOL_GPL(br_handle_frame_hook);
+
 static inline struct sk_buff *handle_bridge(struct sk_buff *skb,
                                            struct packet_type **pt_prev, int *ret,
                                            struct net_device *orig_dev)
@@ -2244,6 +2297,9 @@ int netif_receive_skb(struct sk_buff *skb)
        int ret = NET_RX_DROP;
        __be16 type;
 
+       if (!skb->tstamp.tv64)
+               net_timestamp(skb);
+
        if (skb->vlan_tci && vlan_hwaccel_do_receive(skb))
                return NET_RX_SUCCESS;
 
@@ -2251,9 +2307,6 @@ int netif_receive_skb(struct sk_buff *skb)
        if (netpoll_receive_skb(skb))
                return NET_RX_DROP;
 
-       if (!skb->tstamp.tv64)
-               net_timestamp(skb);
-
        if (!skb->iif)
                skb->iif = skb->dev->ifindex;
 
@@ -2306,8 +2359,6 @@ ncls:
        if (!skb)
                goto out;
 
-       skb_orphan(skb);
-
        type = skb->protocol;
        list_for_each_entry_rcu(ptype,
                        &ptype_base[ntohs(type) & PTYPE_HASH_MASK], list) {
@@ -2334,6 +2385,7 @@ out:
        rcu_read_unlock();
        return ret;
 }
+EXPORT_SYMBOL(netif_receive_skb);
 
 /* Network device is going away, flush any packets still pending  */
 static void flush_backlog(void *arg)
@@ -2561,20 +2613,13 @@ EXPORT_SYMBOL(napi_reuse_skb);
 
 struct sk_buff *napi_get_frags(struct napi_struct *napi)
 {
-       struct net_device *dev = napi->dev;
        struct sk_buff *skb = napi->skb;
 
        if (!skb) {
-               skb = netdev_alloc_skb(dev, GRO_MAX_HEAD + NET_IP_ALIGN);
-               if (!skb)
-                       goto out;
-
-               skb_reserve(skb, NET_IP_ALIGN);
-
-               napi->skb = skb;
+               skb = netdev_alloc_skb_ip_align(napi->dev, GRO_MAX_HEAD);
+               if (skb)
+                       napi->skb = skb;
        }
-
-out:
        return skb;
 }
 EXPORT_SYMBOL(napi_get_frags);
@@ -2821,9 +2866,11 @@ static void net_rx_action(struct softirq_action *h)
                 * move the instance around on the list at-will.
                 */
                if (unlikely(work == weight)) {
-                       if (unlikely(napi_disable_pending(n)))
-                               __napi_complete(n);
-                       else
+                       if (unlikely(napi_disable_pending(n))) {
+                               local_irq_enable();
+                               napi_complete(n);
+                               local_irq_disable();
+                       } else
                                list_move_tail(&n->poll_list, list);
                }
 
@@ -2848,7 +2895,7 @@ softnet_break:
        goto out;
 }
 
-static gifconf_func_t * gifconf_list [NPROTO];
+static gifconf_func_t *gifconf_list[NPROTO];
 
 /**
  *     register_gifconf        -       register a SIOCGIF handler
@@ -2859,13 +2906,14 @@ static gifconf_func_t * gifconf_list [NPROTO];
  *     that is passed must not be freed or reused until it has been replaced
  *     by another handler.
  */
-int register_gifconf(unsigned int family, gifconf_func_t * gifconf)
+int register_gifconf(unsigned int family, gifconf_func_t *gifconf)
 {
        if (family >= NPROTO)
                return -EINVAL;
        gifconf_list[family] = gifconf;
        return 0;
 }
+EXPORT_SYMBOL(register_gifconf);
 
 
 /*
@@ -3076,7 +3124,7 @@ static int softnet_seq_show(struct seq_file *seq, void *v)
        seq_printf(seq, "%08x %08x %08x %08x %08x %08x %08x %08x %08x\n",
                   s->total, s->dropped, s->time_squeeze, 0,
                   0, 0, 0, 0, /* was fastroute */
-                  s->cpu_collision );
+                  s->cpu_collision);
        return 0;
 }
 
@@ -3312,6 +3360,7 @@ int netdev_set_master(struct net_device *slave, struct net_device *master)
        rtmsg_ifinfo(RTM_NEWLINK, slave, IFF_SLAVE);
        return 0;
 }
+EXPORT_SYMBOL(netdev_set_master);
 
 static void dev_change_rx_flags(struct net_device *dev, int flags)
 {
@@ -3390,6 +3439,7 @@ int dev_set_promiscuity(struct net_device *dev, int inc)
                dev_set_rx_mode(dev);
        return err;
 }
+EXPORT_SYMBOL(dev_set_promiscuity);
 
 /**
  *     dev_set_allmulti        - update allmulti count on a device
@@ -3433,6 +3483,7 @@ int dev_set_allmulti(struct net_device *dev, int inc)
        }
        return 0;
 }
+EXPORT_SYMBOL(dev_set_allmulti);
 
 /*
  *     Upload unicast and multicast address lists to device and
@@ -3457,10 +3508,10 @@ void __dev_set_rx_mode(struct net_device *dev)
                /* Unicast addresses changes may only happen under the rtnl,
                 * therefore calling __dev_set_promiscuity here is safe.
                 */
-               if (dev->uc_count > 0 && !dev->uc_promisc) {
+               if (dev->uc.count > 0 && !dev->uc_promisc) {
                        __dev_set_promiscuity(dev, 1);
                        dev->uc_promisc = 1;
-               } else if (dev->uc_count == 0 && dev->uc_promisc) {
+               } else if (dev->uc.count == 0 && dev->uc_promisc) {
                        __dev_set_promiscuity(dev, -1);
                        dev->uc_promisc = 0;
                }
@@ -3479,9 +3530,8 @@ void dev_set_rx_mode(struct net_device *dev)
 
 /* hw addresses list handling functions */
 
-static int __hw_addr_add(struct list_head *list, int *delta,
-                        unsigned char *addr, int addr_len,
-                        unsigned char addr_type)
+static int __hw_addr_add(struct netdev_hw_addr_list *list, unsigned char *addr,
+                        int addr_len, unsigned char addr_type)
 {
        struct netdev_hw_addr *ha;
        int alloc_size;
@@ -3489,7 +3539,7 @@ static int __hw_addr_add(struct list_head *list, int *delta,
        if (addr_len > MAX_ADDR_LEN)
                return -EINVAL;
 
-       list_for_each_entry(ha, list, list) {
+       list_for_each_entry(ha, &list->list, list) {
                if (!memcmp(ha->addr, addr, addr_len) &&
                    ha->type == addr_type) {
                        ha->refcount++;
@@ -3508,9 +3558,8 @@ static int __hw_addr_add(struct list_head *list, int *delta,
        ha->type = addr_type;
        ha->refcount = 1;
        ha->synced = false;
-       list_add_tail_rcu(&ha->list, list);
-       if (delta)
-               (*delta)++;
+       list_add_tail_rcu(&ha->list, &list->list);
+       list->count++;
        return 0;
 }
 
@@ -3522,120 +3571,121 @@ static void ha_rcu_free(struct rcu_head *head)
        kfree(ha);
 }
 
-static int __hw_addr_del(struct list_head *list, int *delta,
-                        unsigned char *addr, int addr_len,
-                        unsigned char addr_type)
+static int __hw_addr_del(struct netdev_hw_addr_list *list, unsigned char *addr,
+                        int addr_len, unsigned char addr_type)
 {
        struct netdev_hw_addr *ha;
 
-       list_for_each_entry(ha, list, list) {
+       list_for_each_entry(ha, &list->list, list) {
                if (!memcmp(ha->addr, addr, addr_len) &&
                    (ha->type == addr_type || !addr_type)) {
                        if (--ha->refcount)
                                return 0;
                        list_del_rcu(&ha->list);
                        call_rcu(&ha->rcu_head, ha_rcu_free);
-                       if (delta)
-                               (*delta)--;
+                       list->count--;
                        return 0;
                }
        }
        return -ENOENT;
 }
 
-static int __hw_addr_add_multiple(struct list_head *to_list, int *to_delta,
-                                 struct list_head *from_list, int addr_len,
+static int __hw_addr_add_multiple(struct netdev_hw_addr_list *to_list,
+                                 struct netdev_hw_addr_list *from_list,
+                                 int addr_len,
                                  unsigned char addr_type)
 {
        int err;
        struct netdev_hw_addr *ha, *ha2;
        unsigned char type;
 
-       list_for_each_entry(ha, from_list, list) {
+       list_for_each_entry(ha, &from_list->list, list) {
                type = addr_type ? addr_type : ha->type;
-               err = __hw_addr_add(to_list, to_delta, ha->addr,
-                                   addr_len, type);
+               err = __hw_addr_add(to_list, ha->addr, addr_len, type);
                if (err)
                        goto unroll;
        }
        return 0;
 
 unroll:
-       list_for_each_entry(ha2, from_list, list) {
+       list_for_each_entry(ha2, &from_list->list, list) {
                if (ha2 == ha)
                        break;
                type = addr_type ? addr_type : ha2->type;
-               __hw_addr_del(to_list, to_delta, ha2->addr,
-                             addr_len, type);
+               __hw_addr_del(to_list, ha2->addr, addr_len, type);
        }
        return err;
 }
 
-static void __hw_addr_del_multiple(struct list_head *to_list, int *to_delta,
-                                  struct list_head *from_list, int addr_len,
+static void __hw_addr_del_multiple(struct netdev_hw_addr_list *to_list,
+                                  struct netdev_hw_addr_list *from_list,
+                                  int addr_len,
                                   unsigned char addr_type)
 {
        struct netdev_hw_addr *ha;
        unsigned char type;
 
-       list_for_each_entry(ha, from_list, list) {
+       list_for_each_entry(ha, &from_list->list, list) {
                type = addr_type ? addr_type : ha->type;
-               __hw_addr_del(to_list, to_delta, ha->addr,
-                             addr_len, addr_type);
+               __hw_addr_del(to_list, ha->addr, addr_len, addr_type);
        }
 }
 
-static int __hw_addr_sync(struct list_head *to_list, int *to_delta,
-                         struct list_head *from_list, int *from_delta,
+static int __hw_addr_sync(struct netdev_hw_addr_list *to_list,
+                         struct netdev_hw_addr_list *from_list,
                          int addr_len)
 {
        int err = 0;
        struct netdev_hw_addr *ha, *tmp;
 
-       list_for_each_entry_safe(ha, tmp, from_list, list) {
+       list_for_each_entry_safe(ha, tmp, &from_list->list, list) {
                if (!ha->synced) {
-                       err = __hw_addr_add(to_list, to_delta, ha->addr,
+                       err = __hw_addr_add(to_list, ha->addr,
                                            addr_len, ha->type);
                        if (err)
                                break;
                        ha->synced = true;
                        ha->refcount++;
                } else if (ha->refcount == 1) {
-                       __hw_addr_del(to_list, to_delta, ha->addr,
-                                     addr_len, ha->type);
-                       __hw_addr_del(from_list, from_delta, ha->addr,
-                                     addr_len, ha->type);
+                       __hw_addr_del(to_list, ha->addr, addr_len, ha->type);
+                       __hw_addr_del(from_list, ha->addr, addr_len, ha->type);
                }
        }
        return err;
 }
 
-static void __hw_addr_unsync(struct list_head *to_list, int *to_delta,
-                            struct list_head *from_list, int *from_delta,
+static void __hw_addr_unsync(struct netdev_hw_addr_list *to_list,
+                            struct netdev_hw_addr_list *from_list,
                             int addr_len)
 {
        struct netdev_hw_addr *ha, *tmp;
 
-       list_for_each_entry_safe(ha, tmp, from_list, list) {
+       list_for_each_entry_safe(ha, tmp, &from_list->list, list) {
                if (ha->synced) {
-                       __hw_addr_del(to_list, to_delta, ha->addr,
+                       __hw_addr_del(to_list, ha->addr,
                                      addr_len, ha->type);
                        ha->synced = false;
-                       __hw_addr_del(from_list, from_delta, ha->addr,
+                       __hw_addr_del(from_list, ha->addr,
                                      addr_len, ha->type);
                }
        }
 }
 
-
-static void __hw_addr_flush(struct list_head *list)
+static void __hw_addr_flush(struct netdev_hw_addr_list *list)
 {
        struct netdev_hw_addr *ha, *tmp;
 
-       list_for_each_entry_safe(ha, tmp, list, list) {
+       list_for_each_entry_safe(ha, tmp, &list->list, list) {
                list_del_rcu(&ha->list);
                call_rcu(&ha->rcu_head, ha_rcu_free);
        }
+       list->count = 0;
+}
+
+static void __hw_addr_init(struct netdev_hw_addr_list *list)
+{
+       INIT_LIST_HEAD(&list->list);
+       list->count = 0;
 }
 
 /* Device addresses handling functions */
@@ -3644,7 +3694,7 @@ static void dev_addr_flush(struct net_device *dev)
 {
        /* rtnl_mutex must be held here */
 
-       __hw_addr_flush(&dev->dev_addr_list);
+       __hw_addr_flush(&dev->dev_addrs);
        dev->dev_addr = NULL;
 }
 
@@ -3656,16 +3706,16 @@ static int dev_addr_init(struct net_device *dev)
 
        /* rtnl_mutex must be held here */
 
-       INIT_LIST_HEAD(&dev->dev_addr_list);
+       __hw_addr_init(&dev->dev_addrs);
        memset(addr, 0, sizeof(addr));
-       err = __hw_addr_add(&dev->dev_addr_list, NULL, addr, sizeof(addr),
+       err = __hw_addr_add(&dev->dev_addrs, addr, sizeof(addr),
                            NETDEV_HW_ADDR_T_LAN);
        if (!err) {
                /*
                 * Get the first (previously created) address from the list
                 * and set dev_addr pointer to this location.
                 */
-               ha = list_first_entry(&dev->dev_addr_list,
+               ha = list_first_entry(&dev->dev_addrs.list,
                                      struct netdev_hw_addr, list);
                dev->dev_addr = ha->addr;
        }
@@ -3690,8 +3740,7 @@ int dev_addr_add(struct net_device *dev, unsigned char *addr,
 
        ASSERT_RTNL();
 
-       err = __hw_addr_add(&dev->dev_addr_list, NULL, addr, dev->addr_len,
-                           addr_type);
+       err = __hw_addr_add(&dev->dev_addrs, addr, dev->addr_len, addr_type);
        if (!err)
                call_netdevice_notifiers(NETDEV_CHANGEADDR, dev);
        return err;
@@ -3721,11 +3770,12 @@ int dev_addr_del(struct net_device *dev, unsigned char *addr,
         * We can not remove the first address from the list because
         * dev->dev_addr points to that.
         */
-       ha = list_first_entry(&dev->dev_addr_list, struct netdev_hw_addr, list);
+       ha = list_first_entry(&dev->dev_addrs.list,
+                             struct netdev_hw_addr, list);
        if (ha->addr == dev->dev_addr && ha->refcount == 1)
                return -ENOENT;
 
-       err = __hw_addr_del(&dev->dev_addr_list, NULL, addr, dev->addr_len,
+       err = __hw_addr_del(&dev->dev_addrs, addr, dev->addr_len,
                            addr_type);
        if (!err)
                call_netdevice_notifiers(NETDEV_CHANGEADDR, dev);
@@ -3753,8 +3803,7 @@ int dev_addr_add_multiple(struct net_device *to_dev,
 
        if (from_dev->addr_len != to_dev->addr_len)
                return -EINVAL;
-       err = __hw_addr_add_multiple(&to_dev->dev_addr_list, NULL,
-                                    &from_dev->dev_addr_list,
+       err = __hw_addr_add_multiple(&to_dev->dev_addrs, &from_dev->dev_addrs,
                                     to_dev->addr_len, addr_type);
        if (!err)
                call_netdevice_notifiers(NETDEV_CHANGEADDR, to_dev);
@@ -3780,15 +3829,14 @@ int dev_addr_del_multiple(struct net_device *to_dev,
 
        if (from_dev->addr_len != to_dev->addr_len)
                return -EINVAL;
-       __hw_addr_del_multiple(&to_dev->dev_addr_list, NULL,
-                              &from_dev->dev_addr_list,
+       __hw_addr_del_multiple(&to_dev->dev_addrs, &from_dev->dev_addrs,
                               to_dev->addr_len, addr_type);
        call_netdevice_notifiers(NETDEV_CHANGEADDR, to_dev);
        return 0;
 }
 EXPORT_SYMBOL(dev_addr_del_multiple);
 
-/* unicast and multicast addresses handling functions */
+/* multicast addresses handling functions */
 
 int __dev_addr_delete(struct dev_addr_list **list, int *count,
                      void *addr, int alen, int glbl)
@@ -3864,10 +3912,12 @@ int dev_unicast_delete(struct net_device *dev, void *addr)
 
        ASSERT_RTNL();
 
-       err = __hw_addr_del(&dev->uc_list, &dev->uc_count, addr,
-                           dev->addr_len, NETDEV_HW_ADDR_T_UNICAST);
+       netif_addr_lock_bh(dev);
+       err = __hw_addr_del(&dev->uc, addr, dev->addr_len,
+                           NETDEV_HW_ADDR_T_UNICAST);
        if (!err)
                __dev_set_rx_mode(dev);
+       netif_addr_unlock_bh(dev);
        return err;
 }
 EXPORT_SYMBOL(dev_unicast_delete);
@@ -3888,10 +3938,12 @@ int dev_unicast_add(struct net_device *dev, void *addr)
 
        ASSERT_RTNL();
 
-       err = __hw_addr_add(&dev->uc_list, &dev->uc_count, addr,
-                           dev->addr_len, NETDEV_HW_ADDR_T_UNICAST);
+       netif_addr_lock_bh(dev);
+       err = __hw_addr_add(&dev->uc, addr, dev->addr_len,
+                           NETDEV_HW_ADDR_T_UNICAST);
        if (!err)
                __dev_set_rx_mode(dev);
+       netif_addr_unlock_bh(dev);
        return err;
 }
 EXPORT_SYMBOL(dev_unicast_add);
@@ -3922,6 +3974,7 @@ int __dev_addr_sync(struct dev_addr_list **to, int *to_count,
        }
        return err;
 }
+EXPORT_SYMBOL_GPL(__dev_addr_sync);
 
 void __dev_addr_unsync(struct dev_addr_list **to, int *to_count,
                       struct dev_addr_list **from, int *from_count)
@@ -3941,6 +3994,7 @@ void __dev_addr_unsync(struct dev_addr_list **to, int *to_count,
                da = next;
        }
 }
+EXPORT_SYMBOL_GPL(__dev_addr_unsync);
 
 /**
  *     dev_unicast_sync - Synchronize device's unicast list to another device
@@ -3948,7 +4002,8 @@ void __dev_addr_unsync(struct dev_addr_list **to, int *to_count,
  *     @from: source device
  *
  *     Add newly added addresses to the destination device and release
- *     addresses that have no users left.
+ *     addresses that have no users left. The source device must be
+ *     locked by netif_tx_lock_bh.
  *
  *     This function is intended to be called from the dev->set_rx_mode
  *     function of layered software devices.
@@ -3957,15 +4012,14 @@ int dev_unicast_sync(struct net_device *to, struct net_device *from)
 {
        int err = 0;
 
-       ASSERT_RTNL();
-
        if (to->addr_len != from->addr_len)
                return -EINVAL;
 
-       err = __hw_addr_sync(&to->uc_list, &to->uc_count,
-                            &from->uc_list, &from->uc_count, to->addr_len);
+       netif_addr_lock_bh(to);
+       err = __hw_addr_sync(&to->uc, &from->uc, to->addr_len);
        if (!err)
                __dev_set_rx_mode(to);
+       netif_addr_unlock_bh(to);
        return err;
 }
 EXPORT_SYMBOL(dev_unicast_sync);
@@ -3981,30 +4035,28 @@ EXPORT_SYMBOL(dev_unicast_sync);
  */
 void dev_unicast_unsync(struct net_device *to, struct net_device *from)
 {
-       ASSERT_RTNL();
-
        if (to->addr_len != from->addr_len)
                return;
 
-       __hw_addr_unsync(&to->uc_list, &to->uc_count,
-                        &from->uc_list, &from->uc_count, to->addr_len);
+       netif_addr_lock_bh(from);
+       netif_addr_lock(to);
+       __hw_addr_unsync(&to->uc, &from->uc, to->addr_len);
        __dev_set_rx_mode(to);
+       netif_addr_unlock(to);
+       netif_addr_unlock_bh(from);
 }
 EXPORT_SYMBOL(dev_unicast_unsync);
 
 static void dev_unicast_flush(struct net_device *dev)
 {
-       /* rtnl_mutex must be held here */
-
-       __hw_addr_flush(&dev->uc_list);
-       dev->uc_count = 0;
+       netif_addr_lock_bh(dev);
+       __hw_addr_flush(&dev->uc);
+       netif_addr_unlock_bh(dev);
 }
 
 static void dev_unicast_init(struct net_device *dev)
 {
-       /* rtnl_mutex must be held here */
-
-       INIT_LIST_HEAD(&dev->uc_list);
+       __hw_addr_init(&dev->uc);
 }
 
 
@@ -4061,6 +4113,7 @@ unsigned dev_get_flags(const struct net_device *dev)
 
        return flags;
 }
+EXPORT_SYMBOL(dev_get_flags);
 
 /**
  *     dev_change_flags - change device settings
@@ -4111,12 +4164,13 @@ int dev_change_flags(struct net_device *dev, unsigned flags)
        }
 
        if (dev->flags & IFF_UP &&
-           ((old_flags ^ dev->flags) &(IFF_UP | IFF_PROMISC | IFF_ALLMULTI |
+           ((old_flags ^ dev->flags) & ~(IFF_UP | IFF_PROMISC | IFF_ALLMULTI |
                                          IFF_VOLATILE)))
                call_netdevice_notifiers(NETDEV_CHANGE, dev);
 
        if ((flags ^ dev->gflags) & IFF_PROMISC) {
-               int inc = (flags & IFF_PROMISC) ? +1 : -1;
+               int inc = (flags & IFF_PROMISC) ? 1 : -1;
+
                dev->gflags ^= IFF_PROMISC;
                dev_set_promiscuity(dev, inc);
        }
@@ -4126,7 +4180,8 @@ int dev_change_flags(struct net_device *dev, unsigned flags)
           IFF_ALLMULTI is requested not asking us and not reporting.
         */
        if ((flags ^ dev->gflags) & IFF_ALLMULTI) {
-               int inc = (flags & IFF_ALLMULTI) ? +1 : -1;
+               int inc = (flags & IFF_ALLMULTI) ? 1 : -1;
+
                dev->gflags ^= IFF_ALLMULTI;
                dev_set_allmulti(dev, inc);
        }
@@ -4138,6 +4193,7 @@ int dev_change_flags(struct net_device *dev, unsigned flags)
 
        return ret;
 }
+EXPORT_SYMBOL(dev_change_flags);
 
 /**
  *     dev_set_mtu - Change maximum transfer unit
@@ -4171,6 +4227,7 @@ int dev_set_mtu(struct net_device *dev, int new_mtu)
                call_netdevice_notifiers(NETDEV_CHANGEMTU, dev);
        return err;
 }
+EXPORT_SYMBOL(dev_set_mtu);
 
 /**
  *     dev_set_mac_address - Change Media Access Control Address
@@ -4195,6 +4252,7 @@ int dev_set_mac_address(struct net_device *dev, struct sockaddr *sa)
                call_netdevice_notifiers(NETDEV_CHANGEADDR, dev);
        return err;
 }
+EXPORT_SYMBOL(dev_set_mac_address);
 
 /*
  *     Perform the SIOCxIFxxx calls, inside read_lock(dev_base_lock)
@@ -4208,56 +4266,56 @@ static int dev_ifsioc_locked(struct net *net, struct ifreq *ifr, unsigned int cm
                return -ENODEV;
 
        switch (cmd) {
-               case SIOCGIFFLAGS:      /* Get interface flags */
-                       ifr->ifr_flags = (short) dev_get_flags(dev);
-                       return 0;
+       case SIOCGIFFLAGS:      /* Get interface flags */
+               ifr->ifr_flags = (short) dev_get_flags(dev);
+               return 0;
 
-               case SIOCGIFMETRIC:     /* Get the metric on the interface
-                                          (currently unused) */
-                       ifr->ifr_metric = 0;
-                       return 0;
+       case SIOCGIFMETRIC:     /* Get the metric on the interface
+                                  (currently unused) */
+               ifr->ifr_metric = 0;
+               return 0;
 
-               case SIOCGIFMTU:        /* Get the MTU of a device */
-                       ifr->ifr_mtu = dev->mtu;
-                       return 0;
+       case SIOCGIFMTU:        /* Get the MTU of a device */
+               ifr->ifr_mtu = dev->mtu;
+               return 0;
 
-               case SIOCGIFHWADDR:
-                       if (!dev->addr_len)
-                               memset(ifr->ifr_hwaddr.sa_data, 0, sizeof ifr->ifr_hwaddr.sa_data);
-                       else
-                               memcpy(ifr->ifr_hwaddr.sa_data, dev->dev_addr,
-                                      min(sizeof ifr->ifr_hwaddr.sa_data, (size_t) dev->addr_len));
-                       ifr->ifr_hwaddr.sa_family = dev->type;
-                       return 0;
+       case SIOCGIFHWADDR:
+               if (!dev->addr_len)
+                       memset(ifr->ifr_hwaddr.sa_data, 0, sizeof ifr->ifr_hwaddr.sa_data);
+               else
+                       memcpy(ifr->ifr_hwaddr.sa_data, dev->dev_addr,
+                              min(sizeof ifr->ifr_hwaddr.sa_data, (size_t) dev->addr_len));
+               ifr->ifr_hwaddr.sa_family = dev->type;
+               return 0;
 
-               case SIOCGIFSLAVE:
-                       err = -EINVAL;
-                       break;
+       case SIOCGIFSLAVE:
+               err = -EINVAL;
+               break;
 
-               case SIOCGIFMAP:
-                       ifr->ifr_map.mem_start = dev->mem_start;
-                       ifr->ifr_map.mem_end   = dev->mem_end;
-                       ifr->ifr_map.base_addr = dev->base_addr;
-                       ifr->ifr_map.irq       = dev->irq;
-                       ifr->ifr_map.dma       = dev->dma;
-                       ifr->ifr_map.port      = dev->if_port;
-                       return 0;
+       case SIOCGIFMAP:
+               ifr->ifr_map.mem_start = dev->mem_start;
+               ifr->ifr_map.mem_end   = dev->mem_end;
+               ifr->ifr_map.base_addr = dev->base_addr;
+               ifr->ifr_map.irq       = dev->irq;
+               ifr->ifr_map.dma       = dev->dma;
+               ifr->ifr_map.port      = dev->if_port;
+               return 0;
 
-               case SIOCGIFINDEX:
-                       ifr->ifr_ifindex = dev->ifindex;
-                       return 0;
+       case SIOCGIFINDEX:
+               ifr->ifr_ifindex = dev->ifindex;
+               return 0;
 
-               case SIOCGIFTXQLEN:
-                       ifr->ifr_qlen = dev->tx_queue_len;
-                       return 0;
+       case SIOCGIFTXQLEN:
+               ifr->ifr_qlen = dev->tx_queue_len;
+               return 0;
 
-               default:
-                       /* dev_ioctl() should ensure this case
-                        * is never reached
-                        */
-                       WARN_ON(1);
-                       err = -EINVAL;
-                       break;
+       default:
+               /* dev_ioctl() should ensure this case
+                * is never reached
+                */
+               WARN_ON(1);
+               err = -EINVAL;
+               break;
 
        }
        return err;
@@ -4278,92 +4336,91 @@ static int dev_ifsioc(struct net *net, struct ifreq *ifr, unsigned int cmd)
        ops = dev->netdev_ops;
 
        switch (cmd) {
-               case SIOCSIFFLAGS:      /* Set interface flags */
-                       return dev_change_flags(dev, ifr->ifr_flags);
-
-               case SIOCSIFMETRIC:     /* Set the metric on the interface
-                                          (currently unused) */
-                       return -EOPNOTSUPP;
-
-               case SIOCSIFMTU:        /* Set the MTU of a device */
-                       return dev_set_mtu(dev, ifr->ifr_mtu);
+       case SIOCSIFFLAGS:      /* Set interface flags */
+               return dev_change_flags(dev, ifr->ifr_flags);
 
-               case SIOCSIFHWADDR:
-                       return dev_set_mac_address(dev, &ifr->ifr_hwaddr);
+       case SIOCSIFMETRIC:     /* Set the metric on the interface
+                                  (currently unused) */
+               return -EOPNOTSUPP;
 
-               case SIOCSIFHWBROADCAST:
-                       if (ifr->ifr_hwaddr.sa_family != dev->type)
-                               return -EINVAL;
-                       memcpy(dev->broadcast, ifr->ifr_hwaddr.sa_data,
-                              min(sizeof ifr->ifr_hwaddr.sa_data, (size_t) dev->addr_len));
-                       call_netdevice_notifiers(NETDEV_CHANGEADDR, dev);
-                       return 0;
+       case SIOCSIFMTU:        /* Set the MTU of a device */
+               return dev_set_mtu(dev, ifr->ifr_mtu);
 
-               case SIOCSIFMAP:
-                       if (ops->ndo_set_config) {
-                               if (!netif_device_present(dev))
-                                       return -ENODEV;
-                               return ops->ndo_set_config(dev, &ifr->ifr_map);
-                       }
-                       return -EOPNOTSUPP;
+       case SIOCSIFHWADDR:
+               return dev_set_mac_address(dev, &ifr->ifr_hwaddr);
 
-               case SIOCADDMULTI:
-                       if ((!ops->ndo_set_multicast_list && !ops->ndo_set_rx_mode) ||
-                           ifr->ifr_hwaddr.sa_family != AF_UNSPEC)
-                               return -EINVAL;
-                       if (!netif_device_present(dev))
-                               return -ENODEV;
-                       return dev_mc_add(dev, ifr->ifr_hwaddr.sa_data,
-                                         dev->addr_len, 1);
+       case SIOCSIFHWBROADCAST:
+               if (ifr->ifr_hwaddr.sa_family != dev->type)
+                       return -EINVAL;
+               memcpy(dev->broadcast, ifr->ifr_hwaddr.sa_data,
+                      min(sizeof ifr->ifr_hwaddr.sa_data, (size_t) dev->addr_len));
+               call_netdevice_notifiers(NETDEV_CHANGEADDR, dev);
+               return 0;
 
-               case SIOCDELMULTI:
-                       if ((!ops->ndo_set_multicast_list && !ops->ndo_set_rx_mode) ||
-                           ifr->ifr_hwaddr.sa_family != AF_UNSPEC)
-                               return -EINVAL;
+       case SIOCSIFMAP:
+               if (ops->ndo_set_config) {
                        if (!netif_device_present(dev))
                                return -ENODEV;
-                       return dev_mc_delete(dev, ifr->ifr_hwaddr.sa_data,
-                                            dev->addr_len, 1);
+                       return ops->ndo_set_config(dev, &ifr->ifr_map);
+               }
+               return -EOPNOTSUPP;
 
-               case SIOCSIFTXQLEN:
-                       if (ifr->ifr_qlen < 0)
-                               return -EINVAL;
-                       dev->tx_queue_len = ifr->ifr_qlen;
-                       return 0;
+       case SIOCADDMULTI:
+               if ((!ops->ndo_set_multicast_list && !ops->ndo_set_rx_mode) ||
+                   ifr->ifr_hwaddr.sa_family != AF_UNSPEC)
+                       return -EINVAL;
+               if (!netif_device_present(dev))
+                       return -ENODEV;
+               return dev_mc_add(dev, ifr->ifr_hwaddr.sa_data,
+                                 dev->addr_len, 1);
+
+       case SIOCDELMULTI:
+               if ((!ops->ndo_set_multicast_list && !ops->ndo_set_rx_mode) ||
+                   ifr->ifr_hwaddr.sa_family != AF_UNSPEC)
+                       return -EINVAL;
+               if (!netif_device_present(dev))
+                       return -ENODEV;
+               return dev_mc_delete(dev, ifr->ifr_hwaddr.sa_data,
+                                    dev->addr_len, 1);
 
-               case SIOCSIFNAME:
-                       ifr->ifr_newname[IFNAMSIZ-1] = '\0';
-                       return dev_change_name(dev, ifr->ifr_newname);
+       case SIOCSIFTXQLEN:
+               if (ifr->ifr_qlen < 0)
+                       return -EINVAL;
+               dev->tx_queue_len = ifr->ifr_qlen;
+               return 0;
 
-               /*
-                *      Unknown or private ioctl
-                */
+       case SIOCSIFNAME:
+               ifr->ifr_newname[IFNAMSIZ-1] = '\0';
+               return dev_change_name(dev, ifr->ifr_newname);
 
-               default:
-                       if ((cmd >= SIOCDEVPRIVATE &&
-                           cmd <= SIOCDEVPRIVATE + 15) ||
-                           cmd == SIOCBONDENSLAVE ||
-                           cmd == SIOCBONDRELEASE ||
-                           cmd == SIOCBONDSETHWADDR ||
-                           cmd == SIOCBONDSLAVEINFOQUERY ||
-                           cmd == SIOCBONDINFOQUERY ||
-                           cmd == SIOCBONDCHANGEACTIVE ||
-                           cmd == SIOCGMIIPHY ||
-                           cmd == SIOCGMIIREG ||
-                           cmd == SIOCSMIIREG ||
-                           cmd == SIOCBRADDIF ||
-                           cmd == SIOCBRDELIF ||
-                           cmd == SIOCSHWTSTAMP ||
-                           cmd == SIOCWANDEV) {
-                               err = -EOPNOTSUPP;
-                               if (ops->ndo_do_ioctl) {
-                                       if (netif_device_present(dev))
-                                               err = ops->ndo_do_ioctl(dev, ifr, cmd);
-                                       else
-                                               err = -ENODEV;
-                               }
-                       } else
-                               err = -EINVAL;
+       /*
+        *      Unknown or private ioctl
+        */
+       default:
+               if ((cmd >= SIOCDEVPRIVATE &&
+                   cmd <= SIOCDEVPRIVATE + 15) ||
+                   cmd == SIOCBONDENSLAVE ||
+                   cmd == SIOCBONDRELEASE ||
+                   cmd == SIOCBONDSETHWADDR ||
+                   cmd == SIOCBONDSLAVEINFOQUERY ||
+                   cmd == SIOCBONDINFOQUERY ||
+                   cmd == SIOCBONDCHANGEACTIVE ||
+                   cmd == SIOCGMIIPHY ||
+                   cmd == SIOCGMIIREG ||
+                   cmd == SIOCSMIIREG ||
+                   cmd == SIOCBRADDIF ||
+                   cmd == SIOCBRDELIF ||
+                   cmd == SIOCSHWTSTAMP ||
+                   cmd == SIOCWANDEV) {
+                       err = -EOPNOTSUPP;
+                       if (ops->ndo_do_ioctl) {
+                               if (netif_device_present(dev))
+                                       err = ops->ndo_do_ioctl(dev, ifr, cmd);
+                               else
+                                       err = -ENODEV;
+                       }
+               } else
+                       err = -EINVAL;
 
        }
        return err;
@@ -4420,135 +4477,135 @@ int dev_ioctl(struct net *net, unsigned int cmd, void __user *arg)
         */
 
        switch (cmd) {
-               /*
-                *      These ioctl calls:
-                *      - can be done by all.
-                *      - atomic and do not require locking.
-                *      - return a value
-                */
-               case SIOCGIFFLAGS:
-               case SIOCGIFMETRIC:
-               case SIOCGIFMTU:
-               case SIOCGIFHWADDR:
-               case SIOCGIFSLAVE:
-               case SIOCGIFMAP:
-               case SIOCGIFINDEX:
-               case SIOCGIFTXQLEN:
-                       dev_load(net, ifr.ifr_name);
-                       read_lock(&dev_base_lock);
-                       ret = dev_ifsioc_locked(net, &ifr, cmd);
-                       read_unlock(&dev_base_lock);
-                       if (!ret) {
-                               if (colon)
-                                       *colon = ':';
-                               if (copy_to_user(arg, &ifr,
-                                                sizeof(struct ifreq)))
-                                       ret = -EFAULT;
-                       }
-                       return ret;
+       /*
+        *      These ioctl calls:
+        *      - can be done by all.
+        *      - atomic and do not require locking.
+        *      - return a value
+        */
+       case SIOCGIFFLAGS:
+       case SIOCGIFMETRIC:
+       case SIOCGIFMTU:
+       case SIOCGIFHWADDR:
+       case SIOCGIFSLAVE:
+       case SIOCGIFMAP:
+       case SIOCGIFINDEX:
+       case SIOCGIFTXQLEN:
+               dev_load(net, ifr.ifr_name);
+               read_lock(&dev_base_lock);
+               ret = dev_ifsioc_locked(net, &ifr, cmd);
+               read_unlock(&dev_base_lock);
+               if (!ret) {
+                       if (colon)
+                               *colon = ':';
+                       if (copy_to_user(arg, &ifr,
+                                        sizeof(struct ifreq)))
+                               ret = -EFAULT;
+               }
+               return ret;
 
-               case SIOCETHTOOL:
-                       dev_load(net, ifr.ifr_name);
-                       rtnl_lock();
-                       ret = dev_ethtool(net, &ifr);
-                       rtnl_unlock();
-                       if (!ret) {
-                               if (colon)
-                                       *colon = ':';
-                               if (copy_to_user(arg, &ifr,
-                                                sizeof(struct ifreq)))
-                                       ret = -EFAULT;
-                       }
-                       return ret;
+       case SIOCETHTOOL:
+               dev_load(net, ifr.ifr_name);
+               rtnl_lock();
+               ret = dev_ethtool(net, &ifr);
+               rtnl_unlock();
+               if (!ret) {
+                       if (colon)
+                               *colon = ':';
+                       if (copy_to_user(arg, &ifr,
+                                        sizeof(struct ifreq)))
+                               ret = -EFAULT;
+               }
+               return ret;
 
-               /*
-                *      These ioctl calls:
-                *      - require superuser power.
-                *      - require strict serialization.
-                *      - return a value
-                */
-               case SIOCGMIIPHY:
-               case SIOCGMIIREG:
-               case SIOCSIFNAME:
-                       if (!capable(CAP_NET_ADMIN))
-                               return -EPERM;
-                       dev_load(net, ifr.ifr_name);
-                       rtnl_lock();
-                       ret = dev_ifsioc(net, &ifr, cmd);
-                       rtnl_unlock();
-                       if (!ret) {
-                               if (colon)
-                                       *colon = ':';
-                               if (copy_to_user(arg, &ifr,
-                                                sizeof(struct ifreq)))
-                                       ret = -EFAULT;
-                       }
-                       return ret;
+       /*
+        *      These ioctl calls:
+        *      - require superuser power.
+        *      - require strict serialization.
+        *      - return a value
+        */
+       case SIOCGMIIPHY:
+       case SIOCGMIIREG:
+       case SIOCSIFNAME:
+               if (!capable(CAP_NET_ADMIN))
+                       return -EPERM;
+               dev_load(net, ifr.ifr_name);
+               rtnl_lock();
+               ret = dev_ifsioc(net, &ifr, cmd);
+               rtnl_unlock();
+               if (!ret) {
+                       if (colon)
+                               *colon = ':';
+                       if (copy_to_user(arg, &ifr,
+                                        sizeof(struct ifreq)))
+                               ret = -EFAULT;
+               }
+               return ret;
 
-               /*
-                *      These ioctl calls:
-                *      - require superuser power.
-                *      - require strict serialization.
-                *      - do not return a value
-                */
-               case SIOCSIFFLAGS:
-               case SIOCSIFMETRIC:
-               case SIOCSIFMTU:
-               case SIOCSIFMAP:
-               case SIOCSIFHWADDR:
-               case SIOCSIFSLAVE:
-               case SIOCADDMULTI:
-               case SIOCDELMULTI:
-               case SIOCSIFHWBROADCAST:
-               case SIOCSIFTXQLEN:
-               case SIOCSMIIREG:
-               case SIOCBONDENSLAVE:
-               case SIOCBONDRELEASE:
-               case SIOCBONDSETHWADDR:
-               case SIOCBONDCHANGEACTIVE:
-               case SIOCBRADDIF:
-               case SIOCBRDELIF:
-               case SIOCSHWTSTAMP:
-                       if (!capable(CAP_NET_ADMIN))
-                               return -EPERM;
-                       /* fall through */
-               case SIOCBONDSLAVEINFOQUERY:
-               case SIOCBONDINFOQUERY:
+       /*
+        *      These ioctl calls:
+        *      - require superuser power.
+        *      - require strict serialization.
+        *      - do not return a value
+        */
+       case SIOCSIFFLAGS:
+       case SIOCSIFMETRIC:
+       case SIOCSIFMTU:
+       case SIOCSIFMAP:
+       case SIOCSIFHWADDR:
+       case SIOCSIFSLAVE:
+       case SIOCADDMULTI:
+       case SIOCDELMULTI:
+       case SIOCSIFHWBROADCAST:
+       case SIOCSIFTXQLEN:
+       case SIOCSMIIREG:
+       case SIOCBONDENSLAVE:
+       case SIOCBONDRELEASE:
+       case SIOCBONDSETHWADDR:
+       case SIOCBONDCHANGEACTIVE:
+       case SIOCBRADDIF:
+       case SIOCBRDELIF:
+       case SIOCSHWTSTAMP:
+               if (!capable(CAP_NET_ADMIN))
+                       return -EPERM;
+               /* fall through */
+       case SIOCBONDSLAVEINFOQUERY:
+       case SIOCBONDINFOQUERY:
+               dev_load(net, ifr.ifr_name);
+               rtnl_lock();
+               ret = dev_ifsioc(net, &ifr, cmd);
+               rtnl_unlock();
+               return ret;
+
+       case SIOCGIFMEM:
+               /* Get the per device memory space. We can add this but
+                * currently do not support it */
+       case SIOCSIFMEM:
+               /* Set the per device memory buffer space.
+                * Not applicable in our case */
+       case SIOCSIFLINK:
+               return -EINVAL;
+
+       /*
+        *      Unknown or private ioctl.
+        */
+       default:
+               if (cmd == SIOCWANDEV ||
+                   (cmd >= SIOCDEVPRIVATE &&
+                    cmd <= SIOCDEVPRIVATE + 15)) {
                        dev_load(net, ifr.ifr_name);
                        rtnl_lock();
                        ret = dev_ifsioc(net, &ifr, cmd);
                        rtnl_unlock();
+                       if (!ret && copy_to_user(arg, &ifr,
+                                                sizeof(struct ifreq)))
+                               ret = -EFAULT;
                        return ret;
-
-               case SIOCGIFMEM:
-                       /* Get the per device memory space. We can add this but
-                        * currently do not support it */
-               case SIOCSIFMEM:
-                       /* Set the per device memory buffer space.
-                        * Not applicable in our case */
-               case SIOCSIFLINK:
-                       return -EINVAL;
-
-               /*
-                *      Unknown or private ioctl.
-                */
-               default:
-                       if (cmd == SIOCWANDEV ||
-                           (cmd >= SIOCDEVPRIVATE &&
-                            cmd <= SIOCDEVPRIVATE + 15)) {
-                               dev_load(net, ifr.ifr_name);
-                               rtnl_lock();
-                               ret = dev_ifsioc(net, &ifr, cmd);
-                               rtnl_unlock();
-                               if (!ret && copy_to_user(arg, &ifr,
-                                                        sizeof(struct ifreq)))
-                                       ret = -EFAULT;
-                               return ret;
-                       }
-                       /* Take care of Wireless Extensions */
-                       if (cmd >= SIOCIWFIRST && cmd <= SIOCIWLAST)
-                               return wext_handle_ioctl(net, &ifr, cmd, arg);
-                       return -EINVAL;
+               }
+               /* Take care of Wireless Extensions */
+               if (cmd >= SIOCIWFIRST && cmd <= SIOCIWLAST)
+                       return wext_handle_ioctl(net, &ifr, cmd, arg);
+               return -EINVAL;
        }
 }
 
@@ -4781,6 +4838,12 @@ int register_netdevice(struct net_device *dev)
                dev->features |= NETIF_F_GSO;
 
        netdev_initialize_kobject(dev);
+
+       ret = call_netdevice_notifiers(NETDEV_POST_INIT, dev);
+       ret = notifier_to_errno(ret);
+       if (ret)
+               goto err_uninit;
+
        ret = netdev_register_kobject(dev);
        if (ret)
                goto err_uninit;
@@ -4813,6 +4876,7 @@ err_uninit:
                dev->netdev_ops->ndo_uninit(dev);
        goto out;
 }
+EXPORT_SYMBOL(register_netdevice);
 
 /**
  *     init_dummy_netdev       - init a dummy network device for NAPI
@@ -5165,6 +5229,7 @@ void free_netdev(struct net_device *dev)
        /* will free via device release */
        put_device(&dev->dev);
 }
+EXPORT_SYMBOL(free_netdev);
 
 /**
  *     synchronize_net -  Synchronize with packet receive processing
@@ -5177,6 +5242,7 @@ void synchronize_net(void)
        might_sleep();
        synchronize_rcu();
 }
+EXPORT_SYMBOL(synchronize_net);
 
 /**
  *     unregister_netdevice - remove device from the kernel
@@ -5197,6 +5263,7 @@ void unregister_netdevice(struct net_device *dev)
        /* Finish processing unregister after unlock */
        net_set_todo(dev);
 }
+EXPORT_SYMBOL(unregister_netdevice);
 
 /**
  *     unregister_netdev - remove device from the kernel
@@ -5215,7 +5282,6 @@ void unregister_netdev(struct net_device *dev)
        unregister_netdevice(dev);
        rtnl_unlock();
 }
-
 EXPORT_SYMBOL(unregister_netdev);
 
 /**
@@ -5344,6 +5410,7 @@ int dev_change_net_namespace(struct net_device *dev, struct net *net, const char
 out:
        return err;
 }
+EXPORT_SYMBOL_GPL(dev_change_net_namespace);
 
 static int dev_cpu_callback(struct notifier_block *nfb,
                            unsigned long action,
@@ -5404,7 +5471,7 @@ unsigned long netdev_increment_features(unsigned long all, unsigned long one,
                                        unsigned long mask)
 {
        /* If device needs checksumming, downgrade to it. */
-        if (all & NETIF_F_NO_CSUM && !(one & NETIF_F_NO_CSUM))
+       if (all & NETIF_F_NO_CSUM && !(one & NETIF_F_NO_CSUM))
                all ^= NETIF_F_NO_CSUM | (one & NETIF_F_ALL_CSUM);
        else if (mask & NETIF_F_ALL_CSUM) {
                /* If one device supports v4/v6 checksumming, set for all. */
@@ -5424,7 +5491,7 @@ unsigned long netdev_increment_features(unsigned long all, unsigned long one,
        one |= NETIF_F_ALL_CSUM;
 
        one |= all & NETIF_F_ONE_FOR_ALL;
-       all &= one | NETIF_F_LLTX | NETIF_F_GSO;
+       all &= one | NETIF_F_LLTX | NETIF_F_GSO | NETIF_F_UFO;
        all |= one & mask & NETIF_F_ONE_FOR_ALL;
 
        return all;
@@ -5630,47 +5697,3 @@ static int __init initialize_hashrnd(void)
 
 late_initcall_sync(initialize_hashrnd);
 
-EXPORT_SYMBOL(__dev_get_by_index);
-EXPORT_SYMBOL(__dev_get_by_name);
-EXPORT_SYMBOL(__dev_remove_pack);
-EXPORT_SYMBOL(dev_valid_name);
-EXPORT_SYMBOL(dev_add_pack);
-EXPORT_SYMBOL(dev_alloc_name);
-EXPORT_SYMBOL(dev_close);
-EXPORT_SYMBOL(dev_get_by_flags);
-EXPORT_SYMBOL(dev_get_by_index);
-EXPORT_SYMBOL(dev_get_by_name);
-EXPORT_SYMBOL(dev_open);
-EXPORT_SYMBOL(dev_queue_xmit);
-EXPORT_SYMBOL(dev_remove_pack);
-EXPORT_SYMBOL(dev_set_allmulti);
-EXPORT_SYMBOL(dev_set_promiscuity);
-EXPORT_SYMBOL(dev_change_flags);
-EXPORT_SYMBOL(dev_set_mtu);
-EXPORT_SYMBOL(dev_set_mac_address);
-EXPORT_SYMBOL(free_netdev);
-EXPORT_SYMBOL(netdev_boot_setup_check);
-EXPORT_SYMBOL(netdev_set_master);
-EXPORT_SYMBOL(netdev_state_change);
-EXPORT_SYMBOL(netif_receive_skb);
-EXPORT_SYMBOL(netif_rx);
-EXPORT_SYMBOL(register_gifconf);
-EXPORT_SYMBOL(register_netdevice);
-EXPORT_SYMBOL(register_netdevice_notifier);
-EXPORT_SYMBOL(skb_checksum_help);
-EXPORT_SYMBOL(synchronize_net);
-EXPORT_SYMBOL(unregister_netdevice);
-EXPORT_SYMBOL(unregister_netdevice_notifier);
-EXPORT_SYMBOL(net_enable_timestamp);
-EXPORT_SYMBOL(net_disable_timestamp);
-EXPORT_SYMBOL(dev_get_flags);
-
-#if defined(CONFIG_BRIDGE) || defined(CONFIG_BRIDGE_MODULE)
-EXPORT_SYMBOL(br_handle_frame_hook);
-EXPORT_SYMBOL(br_fdb_get_hook);
-EXPORT_SYMBOL(br_fdb_put_hook);
-#endif
-
-EXPORT_SYMBOL(dev_load);
-
-EXPORT_PER_CPU_SYMBOL(softnet_data);