Merge branch 'next' into for-linus

Prepare first set of updates for 3.10 merge window.

24 files changed, 3577 insertions, 2176 deletions

diff --git a/net/core/Makefile b/net/core/Makefile
index 674641b13aea..b33b996f5dd6 100644
--- a/net/core/Makefile
+++ b/net/core/Makefile
@@ -9,10 +9,11 @@ obj-$(CONFIG_SYSCTL) += sysctl_net_core.o
 
 obj-y		     += dev.o ethtool.o dev_addr_lists.o dst.o netevent.o \
 			neighbour.o rtnetlink.o utils.o link_watch.o filter.o \
-			sock_diag.o
+			sock_diag.o dev_ioctl.o
 
 obj-$(CONFIG_XFRM) += flow.o
 obj-y += net-sysfs.o
+obj-$(CONFIG_PROC_FS) += net-procfs.o
 obj-$(CONFIG_NET_PKTGEN) += pktgen.o
 obj-$(CONFIG_NETPOLL) += netpoll.o
 obj-$(CONFIG_NET_DMA) += user_dma.o
diff --git a/net/core/datagram.c b/net/core/datagram.c
index 0337e2b76862..368f9c3f9dc6 100644
--- a/net/core/datagram.c
+++ b/net/core/datagram.c
@@ -187,7 +187,7 @@ struct sk_buff *__skb_recv_datagram(struct sock *sk, unsigned int flags,
 		skb_queue_walk(queue, skb) {
 			*peeked = skb->peeked;
 			if (flags & MSG_PEEK) {
-				if (*off >= skb->len) {
+				if (*off >= skb->len && skb->len) {
 					*off -= skb->len;
 					continue;
 				}
diff --git a/net/core/dev.c b/net/core/dev.c
index 09cb3f6dc40c..dffbef70cd31 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -97,8 +97,6 @@
 #include <net/net_namespace.h>
 #include <net/sock.h>
 #include <linux/rtnetlink.h>
-#include <linux/proc_fs.h>
-#include <linux/seq_file.h>
 #include <linux/stat.h>
 #include <net/dst.h>
 #include <net/pkt_sched.h>
@@ -106,12 +104,10 @@
 #include <net/xfrm.h>
 #include <linux/highmem.h>
 #include <linux/init.h>
-#include <linux/kmod.h>
 #include <linux/module.h>
 #include <linux/netpoll.h>
 #include <linux/rcupdate.h>
 #include <linux/delay.h>
-#include <net/wext.h>
 #include <net/iw_handler.h>
 #include <asm/current.h>
 #include <linux/audit.h>
@@ -132,9 +128,7 @@
 #include <linux/pci.h>
 #include <linux/inetdevice.h>
 #include <linux/cpu_rmap.h>
-#include <linux/net_tstamp.h>
 #include <linux/static_key.h>
-#include <net/flow_keys.h>
 
 #include "net-sysfs.h"
 
@@ -144,40 +138,11 @@
 /* This should be increased if a protocol with a bigger head is added. */
 #define GRO_MAX_HEAD (MAX_HEADER + 128)
 
-/*
- *	The list of packet types we will receive (as opposed to discard)
- *	and the routines to invoke.
- *
- *	Why 16. Because with 16 the only overlap we get on a hash of the
- *	low nibble of the protocol value is RARP/SNAP/X.25.
- *
- *      NOTE:  That is no longer true with the addition of VLAN tags.  Not
- *             sure which should go first, but I bet it won't make much
- *             difference if we are running VLANs.  The good news is that
- *             this protocol won't be in the list unless compiled in, so
- *             the average user (w/out VLANs) will not be adversely affected.
- *             --BLG
- *
- *		0800	IP
- *		8100    802.1Q VLAN
- *		0001	802.3
- *		0002	AX.25
- *		0004	802.2
- *		8035	RARP
- *		0005	SNAP
- *		0805	X.25
- *		0806	ARP
- *		8137	IPX
- *		0009	Localtalk
- *		86DD	IPv6
- */
-
-#define PTYPE_HASH_SIZE	(16)
-#define PTYPE_HASH_MASK	(PTYPE_HASH_SIZE - 1)
-
 static DEFINE_SPINLOCK(ptype_lock);
-static struct list_head ptype_base[PTYPE_HASH_SIZE] __read_mostly;
-static struct list_head ptype_all __read_mostly;	/* Taps */
+static DEFINE_SPINLOCK(offload_lock);
+struct list_head ptype_base[PTYPE_HASH_SIZE] __read_mostly;
+struct list_head ptype_all __read_mostly;	/* Taps */
+static struct list_head offload_base __read_mostly;
 
 /*
  * The @dev_base_head list is protected by @dev_base_lock and the rtnl
@@ -201,6 +166,8 @@ static struct list_head ptype_all __read_mostly;	/* Taps */
 DEFINE_RWLOCK(dev_base_lock);
 EXPORT_SYMBOL(dev_base_lock);
 
+seqcount_t devnet_rename_seq;
+
 static inline void dev_base_seq_inc(struct net *net)
 {
 	while (++net->dev_base_seq == 0);
@@ -470,6 +437,82 @@ void dev_remove_pack(struct packet_type *pt)
 }
 EXPORT_SYMBOL(dev_remove_pack);
 
+
+/**
+ *	dev_add_offload - register offload handlers
+ *	@po: protocol offload declaration
+ *
+ *	Add protocol offload handlers to the networking stack. The passed
+ *	&proto_offload is linked into kernel lists and may not be freed until
+ *	it has been removed from the kernel lists.
+ *
+ *	This call does not sleep therefore it can not
+ *	guarantee all CPU's that are in middle of receiving packets
+ *	will see the new offload handlers (until the next received packet).
+ */
+void dev_add_offload(struct packet_offload *po)
+{
+	struct list_head *head = &offload_base;
+
+	spin_lock(&offload_lock);
+	list_add_rcu(&po->list, head);
+	spin_unlock(&offload_lock);
+}
+EXPORT_SYMBOL(dev_add_offload);
+
+/**
+ *	__dev_remove_offload	 - remove offload handler
+ *	@po: packet offload declaration
+ *
+ *	Remove a protocol offload handler that was previously added to the
+ *	kernel offload handlers by dev_add_offload(). The passed &offload_type
+ *	is removed from the kernel lists and can be freed or reused once this
+ *	function returns.
+ *
+ *      The packet type might still be in use by receivers
+ *	and must not be freed until after all the CPU's have gone
+ *	through a quiescent state.
+ */
+void __dev_remove_offload(struct packet_offload *po)
+{
+	struct list_head *head = &offload_base;
+	struct packet_offload *po1;
+
+	spin_lock(&offload_lock);
+
+	list_for_each_entry(po1, head, list) {
+		if (po == po1) {
+			list_del_rcu(&po->list);
+			goto out;
+		}
+	}
+
+	pr_warn("dev_remove_offload: %p not found\n", po);
+out:
+	spin_unlock(&offload_lock);
+}
+EXPORT_SYMBOL(__dev_remove_offload);
+
+/**
+ *	dev_remove_offload	 - remove packet offload handler
+ *	@po: packet offload declaration
+ *
+ *	Remove a packet offload handler that was previously added to the kernel
+ *	offload handlers by dev_add_offload(). The passed &offload_type is
+ *	removed from the kernel lists and can be freed or reused once this
+ *	function returns.
+ *
+ *	This call sleeps to guarantee that no CPU is looking at the packet
+ *	type after return.
+ */
+void dev_remove_offload(struct packet_offload *po)
+{
+	__dev_remove_offload(po);
+
+	synchronize_net();
+}
+EXPORT_SYMBOL(dev_remove_offload);
+
 /******************************************************************************
 
 		      Device Boot-time Settings Routines
@@ -615,11 +658,10 @@ __setup("netdev=", netdev_boot_setup);
 
 struct net_device *__dev_get_by_name(struct net *net, const char *name)
 {
-	struct hlist_node *p;
 	struct net_device *dev;
 	struct hlist_head *head = dev_name_hash(net, name);
 
-	hlist_for_each_entry(dev, p, head, name_hlist)
+	hlist_for_each_entry(dev, head, name_hlist)
 		if (!strncmp(dev->name, name, IFNAMSIZ))
 			return dev;
 
@@ -641,11 +683,10 @@ EXPORT_SYMBOL(__dev_get_by_name);
 
 struct net_device *dev_get_by_name_rcu(struct net *net, const char *name)
 {
-	struct hlist_node *p;
 	struct net_device *dev;
 	struct hlist_head *head = dev_name_hash(net, name);
 
-	hlist_for_each_entry_rcu(dev, p, head, name_hlist)
+	hlist_for_each_entry_rcu(dev, head, name_hlist)
 		if (!strncmp(dev->name, name, IFNAMSIZ))
 			return dev;
 
@@ -692,11 +733,10 @@ EXPORT_SYMBOL(dev_get_by_name);
 
 struct net_device *__dev_get_by_index(struct net *net, int ifindex)
 {
-	struct hlist_node *p;
 	struct net_device *dev;
 	struct hlist_head *head = dev_index_hash(net, ifindex);
 
-	hlist_for_each_entry(dev, p, head, index_hlist)
+	hlist_for_each_entry(dev, head, index_hlist)
 		if (dev->ifindex == ifindex)
 			return dev;
 
@@ -717,11 +757,10 @@ EXPORT_SYMBOL(__dev_get_by_index);
 
 struct net_device *dev_get_by_index_rcu(struct net *net, int ifindex)
 {
-	struct hlist_node *p;
 	struct net_device *dev;
 	struct hlist_head *head = dev_index_hash(net, ifindex);
 
-	hlist_for_each_entry_rcu(dev, p, head, index_hlist)
+	hlist_for_each_entry_rcu(dev, head, index_hlist)
 		if (dev->ifindex == ifindex)
 			return dev;
 
@@ -1013,22 +1052,31 @@ int dev_change_name(struct net_device *dev, const char *newname)
 	if (dev->flags & IFF_UP)
 		return -EBUSY;
 
-	if (strncmp(newname, dev->name, IFNAMSIZ) == 0)
+	write_seqcount_begin(&devnet_rename_seq);
+
+	if (strncmp(newname, dev->name, IFNAMSIZ) == 0) {
+		write_seqcount_end(&devnet_rename_seq);
 		return 0;
+	}
 
 	memcpy(oldname, dev->name, IFNAMSIZ);
 
 	err = dev_get_valid_name(net, dev, newname);
-	if (err < 0)
+	if (err < 0) {
+		write_seqcount_end(&devnet_rename_seq);
 		return err;
+	}
 
 rollback:
 	ret = device_rename(&dev->dev, dev->name);
 	if (ret) {
 		memcpy(dev->name, oldname, IFNAMSIZ);
+		write_seqcount_end(&devnet_rename_seq);
 		return ret;
 	}
 
+	write_seqcount_end(&devnet_rename_seq);
+
 	write_lock_bh(&dev_base_lock);
 	hlist_del_rcu(&dev->name_hlist);
 	write_unlock_bh(&dev_base_lock);
@@ -1046,6 +1094,7 @@ rollback:
 		/* err >= 0 after dev_alloc_name() or stores the first errno */
 		if (err >= 0) {
 			err = ret;
+			write_seqcount_begin(&devnet_rename_seq);
 			memcpy(dev->name, oldname, IFNAMSIZ);
 			goto rollback;
 		} else {
@@ -1075,10 +1124,8 @@ int dev_set_alias(struct net_device *dev, const char *alias, size_t len)
 		return -EINVAL;
 
 	if (!len) {
-		if (dev->ifalias) {
-			kfree(dev->ifalias);
-			dev->ifalias = NULL;
-		}
+		kfree(dev->ifalias);
+		dev->ifalias = NULL;
 		return 0;
 	}
 
@@ -1139,36 +1186,6 @@ void netdev_notify_peers(struct net_device *dev)
 }
 EXPORT_SYMBOL(netdev_notify_peers);
 
-/**
- *	dev_load 	- load a network module
- *	@net: the applicable net namespace
- *	@name: name of interface
- *
- *	If a network interface is not present and the process has suitable
- *	privileges this function loads the module. If module loading is not
- *	available in this kernel then it becomes a nop.
- */
-
-void dev_load(struct net *net, const char *name)
-{
-	struct net_device *dev;
-	int no_module;
-
-	rcu_read_lock();
-	dev = dev_get_by_name_rcu(net, name);
-	rcu_read_unlock();
-
-	no_module = !dev;
-	if (no_module && capable(CAP_NET_ADMIN))
-		no_module = request_module("netdev-%s", name);
-	if (no_module && capable(CAP_SYS_MODULE)) {
-		if (!request_module("%s", name))
-			pr_warn("Loading kernel module for a network device with CAP_SYS_MODULE (deprecated).  Use CAP_NET_ADMIN and alias netdev-%s instead.\n",
-				name);
-	}
-}
-EXPORT_SYMBOL(dev_load);
-
 static int __dev_open(struct net_device *dev)
 {
 	const struct net_device_ops *ops = dev->netdev_ops;
@@ -1179,6 +1196,14 @@ static int __dev_open(struct net_device *dev)
 	if (!netif_device_present(dev))
 		return -ENODEV;
 
+	/* Block netpoll from trying to do any rx path servicing.
+	 * If we don't do this there is a chance ndo_poll_controller
+	 * or ndo_poll may be running while we open the device
+	 */
+	ret = netpoll_rx_disable(dev);
+	if (ret)
+		return ret;
+
 	ret = call_netdevice_notifiers(NETDEV_PRE_UP, dev);
 	ret = notifier_to_errno(ret);
 	if (ret)
@@ -1192,6 +1217,8 @@ static int __dev_open(struct net_device *dev)
 	if (!ret && ops->ndo_open)
 		ret = ops->ndo_open(dev);
 
+	netpoll_rx_enable(dev);
+
 	if (ret)
 		clear_bit(__LINK_STATE_START, &dev->state);
 	else {
@@ -1283,9 +1310,16 @@ static int __dev_close(struct net_device *dev)
 	int retval;
 	LIST_HEAD(single);
 
+	/* Temporarily disable netpoll until the interface is down */
+	retval = netpoll_rx_disable(dev);
+	if (retval)
+		return retval;
+
 	list_add(&dev->unreg_list, &single);
 	retval = __dev_close_many(&single);
 	list_del(&single);
+
+	netpoll_rx_enable(dev);
 	return retval;
 }
 
@@ -1321,14 +1355,22 @@ static int dev_close_many(struct list_head *head)
  */
 int dev_close(struct net_device *dev)
 {
+	int ret = 0;
 	if (dev->flags & IFF_UP) {
 		LIST_HEAD(single);
 
+		/* Block netpoll rx while the interface is going down */
+		ret = netpoll_rx_disable(dev);
+		if (ret)
+			return ret;
+
 		list_add(&dev->unreg_list, &single);
 		dev_close_many(&single);
 		list_del(&single);
+
+		netpoll_rx_enable(dev);
 	}
-	return 0;
+	return ret;
 }
 EXPORT_SYMBOL(dev_close);
 
@@ -1533,57 +1575,6 @@ static inline void net_timestamp_set(struct sk_buff *skb)
 			__net_timestamp(SKB);		\
 	}						\
 
-static int net_hwtstamp_validate(struct ifreq *ifr)
-{
-	struct hwtstamp_config cfg;
-	enum hwtstamp_tx_types tx_type;
-	enum hwtstamp_rx_filters rx_filter;
-	int tx_type_valid = 0;
-	int rx_filter_valid = 0;
-
-	if (copy_from_user(&cfg, ifr->ifr_data, sizeof(cfg)))
-		return -EFAULT;
-
-	if (cfg.flags) /* reserved for future extensions */
-		return -EINVAL;
-
-	tx_type = cfg.tx_type;
-	rx_filter = cfg.rx_filter;
-
-	switch (tx_type) {
-	case HWTSTAMP_TX_OFF:
-	case HWTSTAMP_TX_ON:
-	case HWTSTAMP_TX_ONESTEP_SYNC:
-		tx_type_valid = 1;
-		break;
-	}
-
-	switch (rx_filter) {
-	case HWTSTAMP_FILTER_NONE:
-	case HWTSTAMP_FILTER_ALL:
-	case HWTSTAMP_FILTER_SOME:
-	case HWTSTAMP_FILTER_PTP_V1_L4_EVENT:
-	case HWTSTAMP_FILTER_PTP_V1_L4_SYNC:
-	case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ:
-	case HWTSTAMP_FILTER_PTP_V2_L4_EVENT:
-	case HWTSTAMP_FILTER_PTP_V2_L4_SYNC:
-	case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ:
-	case HWTSTAMP_FILTER_PTP_V2_L2_EVENT:
-	case HWTSTAMP_FILTER_PTP_V2_L2_SYNC:
-	case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ:
-	case HWTSTAMP_FILTER_PTP_V2_EVENT:
-	case HWTSTAMP_FILTER_PTP_V2_SYNC:
-	case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ:
-		rx_filter_valid = 1;
-		break;
-	}
-
-	if (!tx_type_valid || !rx_filter_valid)
-		return -ERANGE;
-
-	return 0;
-}
-
 static inline bool is_skb_forwardable(struct net_device *dev,
 				      struct sk_buff *skb)
 {
@@ -1666,7 +1657,7 @@ static inline int deliver_skb(struct sk_buff *skb,
 
 static inline bool skb_loop_sk(struct packet_type *ptype, struct sk_buff *skb)
 {
-	if (ptype->af_packet_priv == NULL)
+	if (!ptype->af_packet_priv || !skb->sk)
 		return false;
 
 	if (ptype->id_match)
@@ -1769,6 +1760,230 @@ static void netif_setup_tc(struct net_device *dev, unsigned int txq)
 	}
 }
 
+#ifdef CONFIG_XPS
+static DEFINE_MUTEX(xps_map_mutex);
+#define xmap_dereference(P)		\
+	rcu_dereference_protected((P), lockdep_is_held(&xps_map_mutex))
+
+static struct xps_map *remove_xps_queue(struct xps_dev_maps *dev_maps,
+					int cpu, u16 index)
+{
+	struct xps_map *map = NULL;
+	int pos;
+
+	if (dev_maps)
+		map = xmap_dereference(dev_maps->cpu_map[cpu]);
+
+	for (pos = 0; map && pos < map->len; pos++) {
+		if (map->queues[pos] == index) {
+			if (map->len > 1) {
+				map->queues[pos] = map->queues[--map->len];
+			} else {
+				RCU_INIT_POINTER(dev_maps->cpu_map[cpu], NULL);
+				kfree_rcu(map, rcu);
+				map = NULL;
+			}
+			break;
+		}
+	}
+
+	return map;
+}
+
+static void netif_reset_xps_queues_gt(struct net_device *dev, u16 index)
+{
+	struct xps_dev_maps *dev_maps;
+	int cpu, i;
+	bool active = false;
+
+	mutex_lock(&xps_map_mutex);
+	dev_maps = xmap_dereference(dev->xps_maps);
+
+	if (!dev_maps)
+		goto out_no_maps;
+
+	for_each_possible_cpu(cpu) {
+		for (i = index; i < dev->num_tx_queues; i++) {
+			if (!remove_xps_queue(dev_maps, cpu, i))
+				break;
+		}
+		if (i == dev->num_tx_queues)
+			active = true;
+	}
+
+	if (!active) {
+		RCU_INIT_POINTER(dev->xps_maps, NULL);
+		kfree_rcu(dev_maps, rcu);
+	}
+
+	for (i = index; i < dev->num_tx_queues; i++)
+		netdev_queue_numa_node_write(netdev_get_tx_queue(dev, i),
+					     NUMA_NO_NODE);
+
+out_no_maps:
+	mutex_unlock(&xps_map_mutex);
+}
+
+static struct xps_map *expand_xps_map(struct xps_map *map,
+				      int cpu, u16 index)
+{
+	struct xps_map *new_map;
+	int alloc_len = XPS_MIN_MAP_ALLOC;
+	int i, pos;
+
+	for (pos = 0; map && pos < map->len; pos++) {
+		if (map->queues[pos] != index)
+			continue;
+		return map;
+	}
+
+	/* Need to add queue to this CPU's existing map */
+	if (map) {
+		if (pos < map->alloc_len)
+			return map;
+
+		alloc_len = map->alloc_len * 2;
+	}
+
+	/* Need to allocate new map to store queue on this CPU's map */
+	new_map = kzalloc_node(XPS_MAP_SIZE(alloc_len), GFP_KERNEL,
+			       cpu_to_node(cpu));
+	if (!new_map)
+		return NULL;
+
+	for (i = 0; i < pos; i++)
+		new_map->queues[i] = map->queues[i];
+	new_map->alloc_len = alloc_len;
+	new_map->len = pos;
+
+	return new_map;
+}
+
+int netif_set_xps_queue(struct net_device *dev, struct cpumask *mask, u16 index)
+{
+	struct xps_dev_maps *dev_maps, *new_dev_maps = NULL;
+	struct xps_map *map, *new_map;
+	int maps_sz = max_t(unsigned int, XPS_DEV_MAPS_SIZE, L1_CACHE_BYTES);
+	int cpu, numa_node_id = -2;
+	bool active = false;
+
+	mutex_lock(&xps_map_mutex);
+
+	dev_maps = xmap_dereference(dev->xps_maps);
+
+	/* allocate memory for queue storage */
+	for_each_online_cpu(cpu) {
+		if (!cpumask_test_cpu(cpu, mask))
+			continue;
+
+		if (!new_dev_maps)
+			new_dev_maps = kzalloc(maps_sz, GFP_KERNEL);
+		if (!new_dev_maps) {
+			mutex_unlock(&xps_map_mutex);
+			return -ENOMEM;
+		}
+
+		map = dev_maps ? xmap_dereference(dev_maps->cpu_map[cpu]) :
+				 NULL;
+
+		map = expand_xps_map(map, cpu, index);
+		if (!map)
+			goto error;
+
+		RCU_INIT_POINTER(new_dev_maps->cpu_map[cpu], map);
+	}
+
+	if (!new_dev_maps)
+		goto out_no_new_maps;
+
+	for_each_possible_cpu(cpu) {
+		if (cpumask_test_cpu(cpu, mask) && cpu_online(cpu)) {
+			/* add queue to CPU maps */
+			int pos = 0;
+
+			map = xmap_dereference(new_dev_maps->cpu_map[cpu]);
+			while ((pos < map->len) && (map->queues[pos] != index))
+				pos++;
+
+			if (pos == map->len)
+				map->queues[map->len++] = index;
+#ifdef CONFIG_NUMA
+			if (numa_node_id == -2)
+				numa_node_id = cpu_to_node(cpu);
+			else if (numa_node_id != cpu_to_node(cpu))
+				numa_node_id = -1;
+#endif
+		} else if (dev_maps) {
+			/* fill in the new device map from the old device map */
+			map = xmap_dereference(dev_maps->cpu_map[cpu]);
+			RCU_INIT_POINTER(new_dev_maps->cpu_map[cpu], map);
+		}
+
+	}
+
+	rcu_assign_pointer(dev->xps_maps, new_dev_maps);
+
+	/* Cleanup old maps */
+	if (dev_maps) {
+		for_each_possible_cpu(cpu) {
+			new_map = xmap_dereference(new_dev_maps->cpu_map[cpu]);
+			map = xmap_dereference(dev_maps->cpu_map[cpu]);
+			if (map && map != new_map)
+				kfree_rcu(map, rcu);
+		}
+
+		kfree_rcu(dev_maps, rcu);
+	}
+
+	dev_maps = new_dev_maps;
+	active = true;
+
+out_no_new_maps:
+	/* update Tx queue numa node */
+	netdev_queue_numa_node_write(netdev_get_tx_queue(dev, index),
+				     (numa_node_id >= 0) ? numa_node_id :
+				     NUMA_NO_NODE);
+
+	if (!dev_maps)
+		goto out_no_maps;
+
+	/* removes queue from unused CPUs */
+	for_each_possible_cpu(cpu) {
+		if (cpumask_test_cpu(cpu, mask) && cpu_online(cpu))
+			continue;
+
+		if (remove_xps_queue(dev_maps, cpu, index))
+			active = true;
+	}
+
+	/* free map if not active */
+	if (!active) {
+		RCU_INIT_POINTER(dev->xps_maps, NULL);
+		kfree_rcu(dev_maps, rcu);
+	}
+
+out_no_maps:
+	mutex_unlock(&xps_map_mutex);
+
+	return 0;
+error:
+	/* remove any maps that we added */
+	for_each_possible_cpu(cpu) {
+		new_map = xmap_dereference(new_dev_maps->cpu_map[cpu]);
+		map = dev_maps ? xmap_dereference(dev_maps->cpu_map[cpu]) :
+				 NULL;
+		if (new_map && new_map != map)
+			kfree(new_map);
+	}
+
+	mutex_unlock(&xps_map_mutex);
+
+	kfree(new_dev_maps);
+	return -ENOMEM;
+}
+EXPORT_SYMBOL(netif_set_xps_queue);
+
+#endif
 /*
  * Routine to help set real_num_tx_queues. To avoid skbs mapped to queues
  * greater then real_num_tx_queues stale skbs on the qdisc must be flushed.
@@ -1792,8 +2007,12 @@ int netif_set_real_num_tx_queues(struct net_device *dev, unsigned int txq)
 		if (dev->num_tc)
 			netif_setup_tc(dev, txq);
 
-		if (txq < dev->real_num_tx_queues)
+		if (txq < dev->real_num_tx_queues) {
 			qdisc_reset_all_tx_gt(dev, txq);
+#ifdef CONFIG_XPS
+			netif_reset_xps_queues_gt(dev, txq);
+#endif
+		}
 	}
 
 	dev->real_num_tx_queues = txq;
@@ -1958,6 +2177,15 @@ int skb_checksum_help(struct sk_buff *skb)
 		return -EINVAL;
 	}
 
+	/* Before computing a checksum, we should make sure no frag could
+	 * be modified by an external entity : checksum could be wrong.
+	 */
+	if (skb_has_shared_frag(skb)) {
+		ret = __skb_linearize(skb);
+		if (ret)
+			goto out;
+	}
+
 	offset = skb_checksum_start_offset(skb);
 	BUG_ON(offset >= skb_headlen(skb));
 	csum = skb_checksum(skb, offset, skb->len - offset, 0);
@@ -1981,25 +2209,19 @@ out:
 EXPORT_SYMBOL(skb_checksum_help);
 
 /**
- *	skb_gso_segment - Perform segmentation on skb.
+ *	skb_mac_gso_segment - mac layer segmentation handler.
  *	@skb: buffer to segment
  *	@features: features for the output path (see dev->features)
- *
- *	This function segments the given skb and returns a list of segments.
- *
- *	It may return NULL if the skb requires no segmentation.  This is
- *	only possible when GSO is used for verifying header integrity.
  */
-struct sk_buff *skb_gso_segment(struct sk_buff *skb,
-	netdev_features_t features)
+struct sk_buff *skb_mac_gso_segment(struct sk_buff *skb,
+				    netdev_features_t features)
 {
 	struct sk_buff *segs = ERR_PTR(-EPROTONOSUPPORT);
-	struct packet_type *ptype;
+	struct packet_offload *ptype;
 	__be16 type = skb->protocol;
-	int vlan_depth = ETH_HLEN;
-	int err;
 
 	while (type == htons(ETH_P_8021Q)) {
+		int vlan_depth = ETH_HLEN;
 		struct vlan_hdr *vh;
 
 		if (unlikely(!pskb_may_pull(skb, vlan_depth + VLAN_HLEN)))
@@ -2010,31 +2232,22 @@ struct sk_buff *skb_gso_segment(struct sk_buff *skb,
 		vlan_depth += VLAN_HLEN;
 	}
 
-	skb_reset_mac_header(skb);
-	skb->mac_len = skb->network_header - skb->mac_header;
 	__skb_pull(skb, skb->mac_len);
 
-	if (unlikely(skb->ip_summed != CHECKSUM_PARTIAL)) {
-		skb_warn_bad_offload(skb);
-
-		if (skb_header_cloned(skb) &&
-		    (err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC)))
-			return ERR_PTR(err);
-	}
-
 	rcu_read_lock();
-	list_for_each_entry_rcu(ptype,
-			&ptype_base[ntohs(type) & PTYPE_HASH_MASK], list) {
-		if (ptype->type == type && !ptype->dev && ptype->gso_segment) {
+	list_for_each_entry_rcu(ptype, &offload_base, list) {
+		if (ptype->type == type && ptype->callbacks.gso_segment) {
 			if (unlikely(skb->ip_summed != CHECKSUM_PARTIAL)) {
-				err = ptype->gso_send_check(skb);
+				int err;
+
+				err = ptype->callbacks.gso_send_check(skb);
 				segs = ERR_PTR(err);
 				if (err || skb_gso_ok(skb, features))
 					break;
 				__skb_push(skb, (skb->data -
 						 skb_network_header(skb)));
 			}
-			segs = ptype->gso_segment(skb, features);
+			segs = ptype->callbacks.gso_segment(skb, features);
 			break;
 		}
 	}
@@ -2044,7 +2257,50 @@ struct sk_buff *skb_gso_segment(struct sk_buff *skb,
 
 	return segs;
 }
-EXPORT_SYMBOL(skb_gso_segment);
+EXPORT_SYMBOL(skb_mac_gso_segment);
+
+
+/* openvswitch calls this on rx path, so we need a different check.
+ */
+static inline bool skb_needs_check(struct sk_buff *skb, bool tx_path)
+{
+	if (tx_path)
+		return skb->ip_summed != CHECKSUM_PARTIAL;
+	else
+		return skb->ip_summed == CHECKSUM_NONE;
+}
+
+/**
+ *	__skb_gso_segment - Perform segmentation on skb.
+ *	@skb: buffer to segment
+ *	@features: features for the output path (see dev->features)
+ *	@tx_path: whether it is called in TX path
+ *
+ *	This function segments the given skb and returns a list of segments.
+ *
+ *	It may return NULL if the skb requires no segmentation.  This is
+ *	only possible when GSO is used for verifying header integrity.
+ */
+struct sk_buff *__skb_gso_segment(struct sk_buff *skb,
+				  netdev_features_t features, bool tx_path)
+{
+	if (unlikely(skb_needs_check(skb, tx_path))) {
+		int err;
+
+		skb_warn_bad_offload(skb);
+
+		if (skb_header_cloned(skb) &&
+		    (err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC)))
+			return ERR_PTR(err);
+	}
+
+	SKB_GSO_CB(skb)->mac_offset = skb_headroom(skb);
+	skb_reset_mac_header(skb);
+	skb_reset_mac_len(skb);
+
+	return skb_mac_gso_segment(skb, features);
+}
+EXPORT_SYMBOL(__skb_gso_segment);
 
 /* Take action when hardware reception checksum errors are detected. */
 #ifdef CONFIG_BUG
@@ -2237,6 +2493,13 @@ int dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev,
 			skb->vlan_tci = 0;
 		}
 
+		/* If encapsulation offload request, verify we are testing
+		 * hardware encapsulation features instead of standard
+		 * features for the netdev
+		 */
+		if (skb->encapsulation)
+			features &= dev->hw_enc_features;
+
 		if (netif_needs_gso(skb, features)) {
 			if (unlikely(dev_gso_segment(skb, features)))
 				goto out_kfree_skb;
@@ -2252,8 +2515,12 @@ int dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev,
 			 * checksumming here.
 			 */
 			if (skb->ip_summed == CHECKSUM_PARTIAL) {
-				skb_set_transport_header(skb,
-					skb_checksum_start_offset(skb));
+				if (skb->encapsulation)
+					skb_set_inner_transport_header(skb,
+						skb_checksum_start_offset(skb));
+				else
+					skb_set_transport_header(skb,
+						skb_checksum_start_offset(skb));
 				if (!(features & NETIF_F_ALL_CSUM) &&
 				     skb_checksum_help(skb))
 					goto out_kfree_skb;
@@ -2312,126 +2579,28 @@ out:
 	return rc;
 }
 
-static u32 hashrnd __read_mostly;
-
-/*
- * Returns a Tx hash based on the given packet descriptor a Tx queues' number
- * to be used as a distribution range.
- */
-u16 __skb_tx_hash(const struct net_device *dev, const struct sk_buff *skb,
-		  unsigned int num_tx_queues)
-{
-	u32 hash;
-	u16 qoffset = 0;
-	u16 qcount = num_tx_queues;
-
-	if (skb_rx_queue_recorded(skb)) {
-		hash = skb_get_rx_queue(skb);
-		while (unlikely(hash >= num_tx_queues))
-			hash -= num_tx_queues;
-		return hash;
-	}
-
-	if (dev->num_tc) {
-		u8 tc = netdev_get_prio_tc_map(dev, skb->priority);
-		qoffset = dev->tc_to_txq[tc].offset;
-		qcount = dev->tc_to_txq[tc].count;
-	}
-
-	if (skb->sk && skb->sk->sk_hash)
-		hash = skb->sk->sk_hash;
-	else
-		hash = (__force u16) skb->protocol;
-	hash = jhash_1word(hash, hashrnd);
-
-	return (u16) (((u64) hash * qcount) >> 32) + qoffset;
-}
-EXPORT_SYMBOL(__skb_tx_hash);
-
-static inline u16 dev_cap_txqueue(struct net_device *dev, u16 queue_index)
-{
-	if (unlikely(queue_index >= dev->real_num_tx_queues)) {
-		net_warn_ratelimited("%s selects TX queue %d, but real number of TX queues is %d\n",
-				     dev->name, queue_index,
-				     dev->real_num_tx_queues);
-		return 0;
-	}
-	return queue_index;
-}
-
-static inline int get_xps_queue(struct net_device *dev, struct sk_buff *skb)
-{
-#ifdef CONFIG_XPS
-	struct xps_dev_maps *dev_maps;
-	struct xps_map *map;
-	int queue_index = -1;
-
-	rcu_read_lock();
-	dev_maps = rcu_dereference(dev->xps_maps);
-	if (dev_maps) {
-		map = rcu_dereference(
-		    dev_maps->cpu_map[raw_smp_processor_id()]);
-		if (map) {
-			if (map->len == 1)
-				queue_index = map->queues[0];
-			else {
-				u32 hash;
-				if (skb->sk && skb->sk->sk_hash)
-					hash = skb->sk->sk_hash;
-				else
-					hash = (__force u16) skb->protocol ^
-					    skb->rxhash;
-				hash = jhash_1word(hash, hashrnd);
-				queue_index = map->queues[
-				    ((u64)hash * map->len) >> 32];
-			}
-			if (unlikely(queue_index >= dev->real_num_tx_queues))
-				queue_index = -1;
-		}
-	}
-	rcu_read_unlock();
-
-	return queue_index;
-#else
-	return -1;
-#endif
-}
-
-struct netdev_queue *netdev_pick_tx(struct net_device *dev,
-				    struct sk_buff *skb)
+static void qdisc_pkt_len_init(struct sk_buff *skb)
 {
-	int queue_index;
-	const struct net_device_ops *ops = dev->netdev_ops;
-
-	if (dev->real_num_tx_queues == 1)
-		queue_index = 0;
-	else if (ops->ndo_select_queue) {
-		queue_index = ops->ndo_select_queue(dev, skb);
-		queue_index = dev_cap_txqueue(dev, queue_index);
-	} else {
-		struct sock *sk = skb->sk;
-		queue_index = sk_tx_queue_get(sk);
+	const struct skb_shared_info *shinfo = skb_shinfo(skb);
 
-		if (queue_index < 0 || skb->ooo_okay ||
-		    queue_index >= dev->real_num_tx_queues) {
-			int old_index = queue_index;
+	qdisc_skb_cb(skb)->pkt_len = skb->len;
 
-			queue_index = get_xps_queue(dev, skb);
-			if (queue_index < 0)
-				queue_index = skb_tx_hash(dev, skb);
+	/* To get more precise estimation of bytes sent on wire,
+	 * we add to pkt_len the headers size of all segments
+	 */
+	if (shinfo->gso_size)  {
+		unsigned int hdr_len;
 
-			if (queue_index != old_index && sk) {
-				struct dst_entry *dst =
-				    rcu_dereference_check(sk->sk_dst_cache, 1);
+		/* mac layer + network layer */
+		hdr_len = skb_transport_header(skb) - skb_mac_header(skb);
 
-				if (dst && skb_dst(skb) == dst)
-					sk_tx_queue_set(sk, queue_index);
-			}
-		}
+		/* + transport layer */
+		if (likely(shinfo->gso_type & (SKB_GSO_TCPV4 | SKB_GSO_TCPV6)))
+			hdr_len += tcp_hdrlen(skb);
+		else
+			hdr_len += sizeof(struct udphdr);
+		qdisc_skb_cb(skb)->pkt_len += (shinfo->gso_segs - 1) * hdr_len;
 	}
-
-	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,
@@ -2442,7 +2611,7 @@ static inline int __dev_xmit_skb(struct sk_buff *skb, struct Qdisc *q,
 	bool contended;
 	int rc;
 
-	qdisc_skb_cb(skb)->pkt_len = skb->len;
+	qdisc_pkt_len_init(skb);
 	qdisc_calculate_pkt_len(skb, q);
 	/*
 	 * Heuristic to force contended enqueues to serialize on a
@@ -2565,6 +2734,8 @@ int dev_queue_xmit(struct sk_buff *skb)
 	struct Qdisc *q;
 	int rc = -ENOMEM;
 
+	skb_reset_mac_header(skb);
+
 	/* Disable soft irqs for various locks below. Also
 	 * stops preemption for RCU.
 	 */
@@ -2659,41 +2830,6 @@ static inline void ____napi_schedule(struct softnet_data *sd,
 	__raise_softirq_irqoff(NET_RX_SOFTIRQ);
 }
 
-/*
- * __skb_get_rxhash: calculate a flow hash based on src/dst addresses
- * and src/dst port numbers.  Sets rxhash in skb to non-zero hash value
- * on success, zero indicates no valid hash.  Also, sets l4_rxhash in skb
- * if hash is a canonical 4-tuple hash over transport ports.
- */
-void __skb_get_rxhash(struct sk_buff *skb)
-{
-	struct flow_keys keys;
-	u32 hash;
-
-	if (!skb_flow_dissect(skb, &keys))
-		return;
-
-	if (keys.ports)
-		skb->l4_rxhash = 1;
-
-	/* get a consistent hash (same value on both flow directions) */
-	if (((__force u32)keys.dst < (__force u32)keys.src) ||
-	    (((__force u32)keys.dst == (__force u32)keys.src) &&
-	     ((__force u16)keys.port16[1] < (__force u16)keys.port16[0]))) {
-		swap(keys.dst, keys.src);
-		swap(keys.port16[0], keys.port16[1]);
-	}
-
-	hash = jhash_3words((__force u32)keys.dst,
-			    (__force u32)keys.src,
-			    (__force u32)keys.ports, hashrnd);
-	if (!hash)
-		hash = 1;
-
-	skb->rxhash = hash;
-}
-EXPORT_SYMBOL(__skb_get_rxhash);
-
 #ifdef CONFIG_RPS
 
 /* One global table that all flow-based protocols share. */
@@ -2818,8 +2954,10 @@ static int get_rps_cpu(struct net_device *dev, struct sk_buff *skb,
 		if (unlikely(tcpu != next_cpu) &&
 		    (tcpu == RPS_NO_CPU || !cpu_online(tcpu) ||
 		     ((int)(per_cpu(softnet_data, tcpu).input_queue_head -
-		      rflow->last_qtail)) >= 0))
+		      rflow->last_qtail)) >= 0)) {
+			tcpu = next_cpu;
 			rflow = set_rps_cpu(dev, skb, rflow, next_cpu);
+		}
 
 		if (tcpu != RPS_NO_CPU && cpu_online(tcpu)) {
 			*rflowp = rflow;
@@ -3218,7 +3356,7 @@ static bool skb_pfmemalloc_protocol(struct sk_buff *skb)
 	}
 }
 
-static int __netif_receive_skb(struct sk_buff *skb)
+static int __netif_receive_skb_core(struct sk_buff *skb, bool pfmemalloc)
 {
 	struct packet_type *ptype, *pt_prev;
 	rx_handler_func_t *rx_handler;
@@ -3227,24 +3365,11 @@ static int __netif_receive_skb(struct sk_buff *skb)
 	bool deliver_exact = false;
 	int ret = NET_RX_DROP;
 	__be16 type;
-	unsigned long pflags = current->flags;
 
 	net_timestamp_check(!netdev_tstamp_prequeue, skb);
 
 	trace_netif_receive_skb(skb);
 
-	/*
-	 * PFMEMALLOC skbs are special, they should
-	 * - be delivered to SOCK_MEMALLOC sockets only
-	 * - stay away from userspace
-	 * - have bounded memory usage
-	 *
-	 * Use PF_MEMALLOC as this saves us from propagating the allocation
-	 * context down to all allocation sites.
-	 */
-	if (sk_memalloc_socks() && skb_pfmemalloc(skb))
-		current->flags |= PF_MEMALLOC;
-
 	/* if we've gotten here through NAPI, check netpoll */
 	if (netpoll_receive_skb(skb))
 		goto out;
@@ -3252,7 +3377,8 @@ static int __netif_receive_skb(struct sk_buff *skb)
 	orig_dev = skb->dev;
 
 	skb_reset_network_header(skb);
-	skb_reset_transport_header(skb);
+	if (!skb_transport_header_was_set(skb))
+		skb_reset_transport_header(skb);
 	skb_reset_mac_len(skb);
 
 	pt_prev = NULL;
@@ -3277,7 +3403,7 @@ another_round:
 	}
 #endif
 
-	if (sk_memalloc_socks() && skb_pfmemalloc(skb))
+	if (pfmemalloc)
 		goto skip_taps;
 
 	list_for_each_entry_rcu(ptype, &ptype_all, list) {
@@ -3296,8 +3422,7 @@ skip_taps:
 ncls:
 #endif
 
-	if (sk_memalloc_socks() && skb_pfmemalloc(skb)
-				&& !skb_pfmemalloc_protocol(skb))
+	if (pfmemalloc && !skb_pfmemalloc_protocol(skb))
 		goto drop;
 
 	if (vlan_tx_tag_present(skb)) {
@@ -3319,6 +3444,7 @@ ncls:
 		}
 		switch (rx_handler(&skb)) {
 		case RX_HANDLER_CONSUMED:
+			ret = NET_RX_SUCCESS;
 			goto unlock;
 		case RX_HANDLER_ANOTHER:
 			goto another_round;
@@ -3367,7 +3493,31 @@ drop:
 unlock:
 	rcu_read_unlock();
 out:
-	tsk_restore_flags(current, pflags, PF_MEMALLOC);
+	return ret;
+}
+
+static int __netif_receive_skb(struct sk_buff *skb)
+{
+	int ret;
+
+	if (sk_memalloc_socks() && skb_pfmemalloc(skb)) {
+		unsigned long pflags = current->flags;
+
+		/*
+		 * PFMEMALLOC skbs are special, they should
+		 * - be delivered to SOCK_MEMALLOC sockets only
+		 * - stay away from userspace
+		 * - have bounded memory usage
+		 *
+		 * Use PF_MEMALLOC as this saves us from propagating the allocation
+		 * context down to all allocation sites.
+		 */
+		current->flags |= PF_MEMALLOC;
+		ret = __netif_receive_skb_core(skb, true);
+		tsk_restore_flags(current, pflags, PF_MEMALLOC);
+	} else
+		ret = __netif_receive_skb_core(skb, false);
+
 	return ret;
 }
 
@@ -3444,11 +3594,13 @@ static void flush_backlog(void *arg)
 
 static int napi_gro_complete(struct sk_buff *skb)
 {
-	struct packet_type *ptype;
+	struct packet_offload *ptype;
 	__be16 type = skb->protocol;
-	struct list_head *head = &ptype_base[ntohs(type) & PTYPE_HASH_MASK];
+	struct list_head *head = &offload_base;
 	int err = -ENOENT;
 
+	BUILD_BUG_ON(sizeof(struct napi_gro_cb) > sizeof(skb->cb));
+
 	if (NAPI_GRO_CB(skb)->count == 1) {
 		skb_shinfo(skb)->gso_size = 0;
 		goto out;
@@ -3456,10 +3608,10 @@ static int napi_gro_complete(struct sk_buff *skb)
 
 	rcu_read_lock();
 	list_for_each_entry_rcu(ptype, head, list) {
-		if (ptype->type != type || ptype->dev || !ptype->gro_complete)
+		if (ptype->type != type || !ptype->callbacks.gro_complete)
 			continue;
 
-		err = ptype->gro_complete(skb);
+		err = ptype->callbacks.gro_complete(skb);
 		break;
 	}
 	rcu_read_unlock();
@@ -3503,14 +3655,35 @@ void napi_gro_flush(struct napi_struct *napi, bool flush_old)
 }
 EXPORT_SYMBOL(napi_gro_flush);
 
-enum gro_result dev_gro_receive(struct napi_struct *napi, struct sk_buff *skb)
+static void gro_list_prepare(struct napi_struct *napi, struct sk_buff *skb)
+{
+	struct sk_buff *p;
+	unsigned int maclen = skb->dev->hard_header_len;
+
+	for (p = napi->gro_list; p; p = p->next) {
+		unsigned long diffs;
+
+		diffs = (unsigned long)p->dev ^ (unsigned long)skb->dev;
+		diffs |= p->vlan_tci ^ skb->vlan_tci;
+		if (maclen == ETH_HLEN)
+			diffs |= compare_ether_header(skb_mac_header(p),
+						      skb_gro_mac_header(skb));
+		else if (!diffs)
+			diffs = memcmp(skb_mac_header(p),
+				       skb_gro_mac_header(skb),
+				       maclen);
+		NAPI_GRO_CB(p)->same_flow = !diffs;
+		NAPI_GRO_CB(p)->flush = 0;
+	}
+}
+
+static enum gro_result dev_gro_receive(struct napi_struct *napi, struct sk_buff *skb)
 {
 	struct sk_buff **pp = NULL;
-	struct packet_type *ptype;
+	struct packet_offload *ptype;
 	__be16 type = skb->protocol;
-	struct list_head *head = &ptype_base[ntohs(type) & PTYPE_HASH_MASK];
+	struct list_head *head = &offload_base;
 	int same_flow;
-	int mac_len;
 	enum gro_result ret;
 
 	if (!(skb->dev->features & NETIF_F_GRO) || netpoll_rx_on(skb))
@@ -3519,19 +3692,20 @@ enum gro_result dev_gro_receive(struct napi_struct *napi, struct sk_buff *skb)
 	if (skb_is_gso(skb) || skb_has_frag_list(skb))
 		goto normal;
 
+	gro_list_prepare(napi, skb);
+
 	rcu_read_lock();
 	list_for_each_entry_rcu(ptype, head, list) {
-		if (ptype->type != type || ptype->dev || !ptype->gro_receive)
+		if (ptype->type != type || !ptype->callbacks.gro_receive)
 			continue;
 
 		skb_set_network_header(skb, skb_gro_offset(skb));
-		mac_len = skb->network_header - skb->mac_header;
-		skb->mac_len = mac_len;
+		skb_reset_mac_len(skb);
 		NAPI_GRO_CB(skb)->same_flow = 0;
 		NAPI_GRO_CB(skb)->flush = 0;
 		NAPI_GRO_CB(skb)->free = 0;
 
-		pp = ptype->gro_receive(&napi->gro_list, skb);
+		pp = ptype->callbacks.gro_receive(&napi->gro_list, skb);
 		break;
 	}
 	rcu_read_unlock();
@@ -3594,34 +3768,9 @@ normal:
 	ret = GRO_NORMAL;
 	goto pull;
 }
-EXPORT_SYMBOL(dev_gro_receive);
-
-static inline gro_result_t
-__napi_gro_receive(struct napi_struct *napi, struct sk_buff *skb)
-{
-	struct sk_buff *p;
-	unsigned int maclen = skb->dev->hard_header_len;
 
-	for (p = napi->gro_list; p; p = p->next) {
-		unsigned long diffs;
 
-		diffs = (unsigned long)p->dev ^ (unsigned long)skb->dev;
-		diffs |= p->vlan_tci ^ skb->vlan_tci;
-		if (maclen == ETH_HLEN)
-			diffs |= compare_ether_header(skb_mac_header(p),
-						      skb_gro_mac_header(skb));
-		else if (!diffs)
-			diffs = memcmp(skb_mac_header(p),
-				       skb_gro_mac_header(skb),
-				       maclen);
-		NAPI_GRO_CB(p)->same_flow = !diffs;
-		NAPI_GRO_CB(p)->flush = 0;
-	}
-
-	return dev_gro_receive(napi, skb);
-}
-
-gro_result_t napi_skb_finish(gro_result_t ret, struct sk_buff *skb)
+static gro_result_t napi_skb_finish(gro_result_t ret, struct sk_buff *skb)
 {
 	switch (ret) {
 	case GRO_NORMAL:
@@ -3647,7 +3796,6 @@ gro_result_t napi_skb_finish(gro_result_t ret, struct sk_buff *skb)
 
 	return ret;
 }
-EXPORT_SYMBOL(napi_skb_finish);
 
 static void skb_gro_reset_offset(struct sk_buff *skb)
 {
@@ -3670,7 +3818,7 @@ gro_result_t napi_gro_receive(struct napi_struct *napi, struct sk_buff *skb)
 {
 	skb_gro_reset_offset(skb);
 
-	return napi_skb_finish(__napi_gro_receive(napi, skb), skb);
+	return napi_skb_finish(dev_gro_receive(napi, skb), skb);
 }
 EXPORT_SYMBOL(napi_gro_receive);
 
@@ -3699,7 +3847,7 @@ struct sk_buff *napi_get_frags(struct napi_struct *napi)
 }
 EXPORT_SYMBOL(napi_get_frags);
 
-gro_result_t napi_frags_finish(struct napi_struct *napi, struct sk_buff *skb,
+static gro_result_t napi_frags_finish(struct napi_struct *napi, struct sk_buff *skb,
 			       gro_result_t ret)
 {
 	switch (ret) {
@@ -3724,7 +3872,6 @@ gro_result_t napi_frags_finish(struct napi_struct *napi, struct sk_buff *skb,
 
 	return ret;
 }
-EXPORT_SYMBOL(napi_frags_finish);
 
 static struct sk_buff *napi_frags_skb(struct napi_struct *napi)
 {
@@ -3769,7 +3916,7 @@ gro_result_t napi_gro_frags(struct napi_struct *napi)
 	if (!skb)
 		return GRO_DROP;
 
-	return napi_frags_finish(napi, skb, __napi_gro_receive(napi, skb));
+	return napi_frags_finish(napi, skb, dev_gro_receive(napi, skb));
 }
 EXPORT_SYMBOL(napi_gro_frags);
 
@@ -3957,7 +4104,7 @@ static void net_rx_action(struct softirq_action *h)
 		 * Allow this to run for 2 jiffies since which will allow
 		 * an average latency of 1.5/HZ.
 		 */
-		if (unlikely(budget <= 0 || time_after(jiffies, time_limit)))
+		if (unlikely(budget <= 0 || time_after_eq(jiffies, time_limit)))
 			goto softnet_break;
 
 		local_irq_enable();
@@ -4035,525 +4182,231 @@ softnet_break:
 	goto out;
 }
 
-static gifconf_func_t *gifconf_list[NPROTO];
-
-/**
- *	register_gifconf	-	register a SIOCGIF handler
- *	@family: Address family
- *	@gifconf: Function handler
- *
- *	Register protocol dependent address dumping routines. The handler
- *	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)
-{
-	if (family >= NPROTO)
-		return -EINVAL;
-	gifconf_list[family] = gifconf;
-	return 0;
-}
-EXPORT_SYMBOL(register_gifconf);
-
-
-/*
- *	Map an interface index to its name (SIOCGIFNAME)
- */
-
-/*
- *	We need this ioctl for efficient implementation of the
- *	if_indextoname() function required by the IPv6 API.  Without
- *	it, we would have to search all the interfaces to find a
- *	match.  --pb
- */
-
-static int dev_ifname(struct net *net, struct ifreq __user *arg)
-{
+struct netdev_upper {
 	struct net_device *dev;
-	struct ifreq ifr;
-
-	/*
-	 *	Fetch the caller's info block.
-	 */
+	bool master;
+	struct list_head list;
+	struct rcu_head rcu;
+	struct list_head search_list;
+};
 
-	if (copy_from_user(&ifr, arg, sizeof(struct ifreq)))
-		return -EFAULT;
+static void __append_search_uppers(struct list_head *search_list,
+				   struct net_device *dev)
+{
+	struct netdev_upper *upper;
 
-	rcu_read_lock();
-	dev = dev_get_by_index_rcu(net, ifr.ifr_ifindex);
-	if (!dev) {
-		rcu_read_unlock();
-		return -ENODEV;
+	list_for_each_entry(upper, &dev->upper_dev_list, list) {
+		/* check if this upper is not already in search list */
+		if (list_empty(&upper->search_list))
+			list_add_tail(&upper->search_list, search_list);
 	}
-
-	strcpy(ifr.ifr_name, dev->name);
-	rcu_read_unlock();
-
-	if (copy_to_user(arg, &ifr, sizeof(struct ifreq)))
-		return -EFAULT;
-	return 0;
 }
 
-/*
- *	Perform a SIOCGIFCONF call. This structure will change
- *	size eventually, and there is nothing I can do about it.
- *	Thus we will need a 'compatibility mode'.
- */
-
-static int dev_ifconf(struct net *net, char __user *arg)
+static bool __netdev_search_upper_dev(struct net_device *dev,
+				      struct net_device *upper_dev)
 {
-	struct ifconf ifc;
-	struct net_device *dev;
-	char __user *pos;
-	int len;
-	int total;
-	int i;
-
-	/*
-	 *	Fetch the caller's info block.
-	 */
+	LIST_HEAD(search_list);
+	struct netdev_upper *upper;
+	struct netdev_upper *tmp;
+	bool ret = false;
 
-	if (copy_from_user(&ifc, arg, sizeof(struct ifconf)))
-		return -EFAULT;
-
-	pos = ifc.ifc_buf;
-	len = ifc.ifc_len;
-
-	/*
-	 *	Loop over the interfaces, and write an info block for each.
-	 */
-
-	total = 0;
-	for_each_netdev(net, dev) {
-		for (i = 0; i < NPROTO; i++) {
-			if (gifconf_list[i]) {
-				int done;
-				if (!pos)
-					done = gifconf_list[i](dev, NULL, 0);
-				else
-					done = gifconf_list[i](dev, pos + total,
-							       len - total);
-				if (done < 0)
-					return -EFAULT;
-				total += done;
-			}
+	__append_search_uppers(&search_list, dev);
+	list_for_each_entry(upper, &search_list, search_list) {
+		if (upper->dev == upper_dev) {
+			ret = true;
+			break;
 		}
+		__append_search_uppers(&search_list, upper->dev);
 	}
-
-	/*
-	 *	All done.  Write the updated control block back to the caller.
-	 */
-	ifc.ifc_len = total;
-
-	/*
-	 * 	Both BSD and Solaris return 0 here, so we do too.
-	 */
-	return copy_to_user(arg, &ifc, sizeof(struct ifconf)) ? -EFAULT : 0;
+	list_for_each_entry_safe(upper, tmp, &search_list, search_list)
+		INIT_LIST_HEAD(&upper->search_list);
+	return ret;
 }
 
-#ifdef CONFIG_PROC_FS
-
-#define BUCKET_SPACE (32 - NETDEV_HASHBITS - 1)
-
-#define get_bucket(x) ((x) >> BUCKET_SPACE)
-#define get_offset(x) ((x) & ((1 << BUCKET_SPACE) - 1))
-#define set_bucket_offset(b, o) ((b) << BUCKET_SPACE | (o))
-
-static inline struct net_device *dev_from_same_bucket(struct seq_file *seq, loff_t *pos)
+static struct netdev_upper *__netdev_find_upper(struct net_device *dev,
+						struct net_device *upper_dev)
 {
-	struct net *net = seq_file_net(seq);
-	struct net_device *dev;
-	struct hlist_node *p;
-	struct hlist_head *h;
-	unsigned int count = 0, offset = get_offset(*pos);
+	struct netdev_upper *upper;
 
-	h = &net->dev_name_head[get_bucket(*pos)];
-	hlist_for_each_entry_rcu(dev, p, h, name_hlist) {
-		if (++count == offset)
-			return dev;
+	list_for_each_entry(upper, &dev->upper_dev_list, list) {
+		if (upper->dev == upper_dev)
+			return upper;
 	}
-
 	return NULL;
 }
 
-static inline struct net_device *dev_from_bucket(struct seq_file *seq, loff_t *pos)
-{
-	struct net_device *dev;
-	unsigned int bucket;
-
-	do {
-		dev = dev_from_same_bucket(seq, pos);
-		if (dev)
-			return dev;
-
-		bucket = get_bucket(*pos) + 1;
-		*pos = set_bucket_offset(bucket, 1);
-	} while (bucket < NETDEV_HASHENTRIES);
-
-	return NULL;
-}
-
-/*
- *	This is invoked by the /proc filesystem handler to display a device
- *	in detail.
+/**
+ * netdev_has_upper_dev - Check if device is linked to an upper device
+ * @dev: device
+ * @upper_dev: upper device to check
+ *
+ * Find out if a device is linked to specified upper device and return true
+ * in case it is. Note that this checks only immediate upper device,
+ * not through a complete stack of devices. The caller must hold the RTNL lock.
  */
-void *dev_seq_start(struct seq_file *seq, loff_t *pos)
-	__acquires(RCU)
-{
-	rcu_read_lock();
-	if (!*pos)
-		return SEQ_START_TOKEN;
-
-	if (get_bucket(*pos) >= NETDEV_HASHENTRIES)
-		return NULL;
-
-	return dev_from_bucket(seq, pos);
-}
-
-void *dev_seq_next(struct seq_file *seq, void *v, loff_t *pos)
-{
-	++*pos;
-	return dev_from_bucket(seq, pos);
-}
-
-void dev_seq_stop(struct seq_file *seq, void *v)
-	__releases(RCU)
-{
-	rcu_read_unlock();
-}
-
-static void dev_seq_printf_stats(struct seq_file *seq, struct net_device *dev)
+bool netdev_has_upper_dev(struct net_device *dev,
+			  struct net_device *upper_dev)
 {
-	struct rtnl_link_stats64 temp;
-	const struct rtnl_link_stats64 *stats = dev_get_stats(dev, &temp);
+	ASSERT_RTNL();
 
-	seq_printf(seq, "%6s: %7llu %7llu %4llu %4llu %4llu %5llu %10llu %9llu "
-		   "%8llu %7llu %4llu %4llu %4llu %5llu %7llu %10llu\n",
-		   dev->name, stats->rx_bytes, stats->rx_packets,
-		   stats->rx_errors,
-		   stats->rx_dropped + stats->rx_missed_errors,
-		   stats->rx_fifo_errors,
-		   stats->rx_length_errors + stats->rx_over_errors +
-		    stats->rx_crc_errors + stats->rx_frame_errors,
-		   stats->rx_compressed, stats->multicast,
-		   stats->tx_bytes, stats->tx_packets,
-		   stats->tx_errors, stats->tx_dropped,
-		   stats->tx_fifo_errors, stats->collisions,
-		   stats->tx_carrier_errors +
-		    stats->tx_aborted_errors +
-		    stats->tx_window_errors +
-		    stats->tx_heartbeat_errors,
-		   stats->tx_compressed);
+	return __netdev_find_upper(dev, upper_dev);
 }
+EXPORT_SYMBOL(netdev_has_upper_dev);
 
-/*
- *	Called from the PROCfs module. This now uses the new arbitrary sized
- *	/proc/net interface to create /proc/net/dev
+/**
+ * netdev_has_any_upper_dev - Check if device is linked to some device
+ * @dev: device
+ *
+ * Find out if a device is linked to an upper device and return true in case
+ * it is. The caller must hold the RTNL lock.
  */
-static int dev_seq_show(struct seq_file *seq, void *v)
-{
-	if (v == SEQ_START_TOKEN)
-		seq_puts(seq, "Inter-|   Receive                            "
-			      "                    |  Transmit\n"
-			      " face |bytes    packets errs drop fifo frame "
-			      "compressed multicast|bytes    packets errs "
-			      "drop fifo colls carrier compressed\n");
-	else
-		dev_seq_printf_stats(seq, v);
-	return 0;
-}
-
-static struct softnet_data *softnet_get_online(loff_t *pos)
-{
-	struct softnet_data *sd = NULL;
-
-	while (*pos < nr_cpu_ids)
-		if (cpu_online(*pos)) {
-			sd = &per_cpu(softnet_data, *pos);
-			break;
-		} else
-			++*pos;
-	return sd;
-}
-
-static void *softnet_seq_start(struct seq_file *seq, loff_t *pos)
-{
-	return softnet_get_online(pos);
-}
-
-static void *softnet_seq_next(struct seq_file *seq, void *v, loff_t *pos)
-{
-	++*pos;
-	return softnet_get_online(pos);
-}
-
-static void softnet_seq_stop(struct seq_file *seq, void *v)
+bool netdev_has_any_upper_dev(struct net_device *dev)
 {
-}
-
-static int softnet_seq_show(struct seq_file *seq, void *v)
-{
-	struct softnet_data *sd = v;
+	ASSERT_RTNL();
 
-	seq_printf(seq, "%08x %08x %08x %08x %08x %08x %08x %08x %08x %08x\n",
-		   sd->processed, sd->dropped, sd->time_squeeze, 0,
-		   0, 0, 0, 0, /* was fastroute */
-		   sd->cpu_collision, sd->received_rps);
-	return 0;
+	return !list_empty(&dev->upper_dev_list);
 }
+EXPORT_SYMBOL(netdev_has_any_upper_dev);
 
-static const struct seq_operations dev_seq_ops = {
-	.start = dev_seq_start,
-	.next  = dev_seq_next,
-	.stop  = dev_seq_stop,
-	.show  = dev_seq_show,
-};
-
-static int dev_seq_open(struct inode *inode, struct file *file)
+/**
+ * netdev_master_upper_dev_get - Get master upper device
+ * @dev: device
+ *
+ * Find a master upper device and return pointer to it or NULL in case
+ * it's not there. The caller must hold the RTNL lock.
+ */
+struct net_device *netdev_master_upper_dev_get(struct net_device *dev)
 {
-	return seq_open_net(inode, file, &dev_seq_ops,
-			    sizeof(struct seq_net_private));
-}
+	struct netdev_upper *upper;
 
-static const struct file_operations dev_seq_fops = {
-	.owner	 = THIS_MODULE,
-	.open    = dev_seq_open,
-	.read    = seq_read,
-	.llseek  = seq_lseek,
-	.release = seq_release_net,
-};
+	ASSERT_RTNL();
 
-static const struct seq_operations softnet_seq_ops = {
-	.start = softnet_seq_start,
-	.next  = softnet_seq_next,
-	.stop  = softnet_seq_stop,
-	.show  = softnet_seq_show,
-};
+	if (list_empty(&dev->upper_dev_list))
+		return NULL;
 
-static int softnet_seq_open(struct inode *inode, struct file *file)
-{
-	return seq_open(file, &softnet_seq_ops);
+	upper = list_first_entry(&dev->upper_dev_list,
+				 struct netdev_upper, list);
+	if (likely(upper->master))
+		return upper->dev;
+	return NULL;
 }
+EXPORT_SYMBOL(netdev_master_upper_dev_get);
 
-static const struct file_operations softnet_seq_fops = {
-	.owner	 = THIS_MODULE,
-	.open    = softnet_seq_open,
-	.read    = seq_read,
-	.llseek  = seq_lseek,
-	.release = seq_release,
-};
-
-static void *ptype_get_idx(loff_t pos)
+/**
+ * netdev_master_upper_dev_get_rcu - Get master upper device
+ * @dev: device
+ *
+ * Find a master upper device and return pointer to it or NULL in case
+ * it's not there. The caller must hold the RCU read lock.
+ */
+struct net_device *netdev_master_upper_dev_get_rcu(struct net_device *dev)
 {
-	struct packet_type *pt = NULL;
-	loff_t i = 0;
-	int t;
+	struct netdev_upper *upper;
 
-	list_for_each_entry_rcu(pt, &ptype_all, list) {
-		if (i == pos)
-			return pt;
-		++i;
-	}
-
-	for (t = 0; t < PTYPE_HASH_SIZE; t++) {
-		list_for_each_entry_rcu(pt, &ptype_base[t], list) {
-			if (i == pos)
-				return pt;
-			++i;
-		}
-	}
+	upper = list_first_or_null_rcu(&dev->upper_dev_list,
+				       struct netdev_upper, list);
+	if (upper && likely(upper->master))
+		return upper->dev;
 	return NULL;
 }
+EXPORT_SYMBOL(netdev_master_upper_dev_get_rcu);
 
-static void *ptype_seq_start(struct seq_file *seq, loff_t *pos)
-	__acquires(RCU)
+static int __netdev_upper_dev_link(struct net_device *dev,
+				   struct net_device *upper_dev, bool master)
 {
-	rcu_read_lock();
-	return *pos ? ptype_get_idx(*pos - 1) : SEQ_START_TOKEN;
-}
+	struct netdev_upper *upper;
 
-static void *ptype_seq_next(struct seq_file *seq, void *v, loff_t *pos)
-{
-	struct packet_type *pt;
-	struct list_head *nxt;
-	int hash;
+	ASSERT_RTNL();
 
-	++*pos;
-	if (v == SEQ_START_TOKEN)
-		return ptype_get_idx(0);
+	if (dev == upper_dev)
+		return -EBUSY;
 
-	pt = v;
-	nxt = pt->list.next;
-	if (pt->type == htons(ETH_P_ALL)) {
-		if (nxt != &ptype_all)
-			goto found;
-		hash = 0;
-		nxt = ptype_base[0].next;
-	} else
-		hash = ntohs(pt->type) & PTYPE_HASH_MASK;
+	/* To prevent loops, check if dev is not upper device to upper_dev. */
+	if (__netdev_search_upper_dev(upper_dev, dev))
+		return -EBUSY;
 
-	while (nxt == &ptype_base[hash]) {
-		if (++hash >= PTYPE_HASH_SIZE)
-			return NULL;
-		nxt = ptype_base[hash].next;
-	}
-found:
-	return list_entry(nxt, struct packet_type, list);
-}
+	if (__netdev_find_upper(dev, upper_dev))
+		return -EEXIST;
 
-static void ptype_seq_stop(struct seq_file *seq, void *v)
-	__releases(RCU)
-{
-	rcu_read_unlock();
-}
+	if (master && netdev_master_upper_dev_get(dev))
+		return -EBUSY;
 
-static int ptype_seq_show(struct seq_file *seq, void *v)
-{
-	struct packet_type *pt = v;
+	upper = kmalloc(sizeof(*upper), GFP_KERNEL);
+	if (!upper)
+		return -ENOMEM;
 
-	if (v == SEQ_START_TOKEN)
-		seq_puts(seq, "Type Device      Function\n");
-	else if (pt->dev == NULL || dev_net(pt->dev) == seq_file_net(seq)) {
-		if (pt->type == htons(ETH_P_ALL))
-			seq_puts(seq, "ALL ");
-		else
-			seq_printf(seq, "%04x", ntohs(pt->type));
+	upper->dev = upper_dev;
+	upper->master = master;
+	INIT_LIST_HEAD(&upper->search_list);
 
-		seq_printf(seq, " %-8s %pF\n",
-			   pt->dev ? pt->dev->name : "", pt->func);
-	}
+	/* Ensure that master upper link is always the first item in list. */
+	if (master)
+		list_add_rcu(&upper->list, &dev->upper_dev_list);
+	else
+		list_add_tail_rcu(&upper->list, &dev->upper_dev_list);
+	dev_hold(upper_dev);
 
 	return 0;
 }
 
-static const struct seq_operations ptype_seq_ops = {
-	.start = ptype_seq_start,
-	.next  = ptype_seq_next,
-	.stop  = ptype_seq_stop,
-	.show  = ptype_seq_show,
-};
-
-static int ptype_seq_open(struct inode *inode, struct file *file)
-{
-	return seq_open_net(inode, file, &ptype_seq_ops,
-			sizeof(struct seq_net_private));
-}
-
-static const struct file_operations ptype_seq_fops = {
-	.owner	 = THIS_MODULE,
-	.open    = ptype_seq_open,
-	.read    = seq_read,
-	.llseek  = seq_lseek,
-	.release = seq_release_net,
-};
-
-
-static int __net_init dev_proc_net_init(struct net *net)
-{
-	int rc = -ENOMEM;
-
-	if (!proc_net_fops_create(net, "dev", S_IRUGO, &dev_seq_fops))
-		goto out;
-	if (!proc_net_fops_create(net, "softnet_stat", S_IRUGO, &softnet_seq_fops))
-		goto out_dev;
-	if (!proc_net_fops_create(net, "ptype", S_IRUGO, &ptype_seq_fops))
-		goto out_softnet;
-
-	if (wext_proc_init(net))
-		goto out_ptype;
-	rc = 0;
-out:
-	return rc;
-out_ptype:
-	proc_net_remove(net, "ptype");
-out_softnet:
-	proc_net_remove(net, "softnet_stat");
-out_dev:
-	proc_net_remove(net, "dev");
-	goto out;
-}
-
-static void __net_exit dev_proc_net_exit(struct net *net)
-{
-	wext_proc_exit(net);
-
-	proc_net_remove(net, "ptype");
-	proc_net_remove(net, "softnet_stat");
-	proc_net_remove(net, "dev");
-}
-
-static struct pernet_operations __net_initdata dev_proc_ops = {
-	.init = dev_proc_net_init,
-	.exit = dev_proc_net_exit,
-};
-
-static int __init dev_proc_init(void)
+/**
+ * netdev_upper_dev_link - Add a link to the upper device
+ * @dev: device
+ * @upper_dev: new upper device
+ *
+ * Adds a link to device which is upper to this one. The caller must hold
+ * the RTNL lock. On a failure a negative errno code is returned.
+ * On success the reference counts are adjusted and the function
+ * returns zero.
+ */
+int netdev_upper_dev_link(struct net_device *dev,
+			  struct net_device *upper_dev)
 {
-	return register_pernet_subsys(&dev_proc_ops);
+	return __netdev_upper_dev_link(dev, upper_dev, false);
 }
-#else
-#define dev_proc_init() 0
-#endif	/* CONFIG_PROC_FS */
-
+EXPORT_SYMBOL(netdev_upper_dev_link);
 
 /**
- *	netdev_set_master	-	set up master pointer
- *	@slave: slave device
- *	@master: new master device
+ * netdev_master_upper_dev_link - Add a master link to the upper device
+ * @dev: device
+ * @upper_dev: new upper device
  *
- *	Changes the master device of the slave. Pass %NULL to break the
- *	bonding. The caller must hold the RTNL semaphore. On a failure
- *	a negative errno code is returned. On success the reference counts
- *	are adjusted and the function returns zero.
+ * Adds a link to device which is upper to this one. In this case, only
+ * one master upper device can be linked, although other non-master devices
+ * might be linked as well. The caller must hold the RTNL lock.
+ * On a failure a negative errno code is returned. On success the reference
+ * counts are adjusted and the function returns zero.
  */
-int netdev_set_master(struct net_device *slave, struct net_device *master)
+int netdev_master_upper_dev_link(struct net_device *dev,
+				 struct net_device *upper_dev)
 {
-	struct net_device *old = slave->master;
-
-	ASSERT_RTNL();
-
-	if (master) {
-		if (old)
-			return -EBUSY;
-		dev_hold(master);
-	}
-
-	slave->master = master;
-
-	if (old)
-		dev_put(old);
-	return 0;
+	return __netdev_upper_dev_link(dev, upper_dev, true);
 }
-EXPORT_SYMBOL(netdev_set_master);
+EXPORT_SYMBOL(netdev_master_upper_dev_link);
 
 /**
- *	netdev_set_bond_master	-	set up bonding master/slave pair
- *	@slave: slave device
- *	@master: new master device
+ * netdev_upper_dev_unlink - Removes a link to upper device
+ * @dev: device
+ * @upper_dev: new upper device
  *
- *	Changes the master device of the slave. Pass %NULL to break the
- *	bonding. The caller must hold the RTNL semaphore. On a failure
- *	a negative errno code is returned. On success %RTM_NEWLINK is sent
- *	to the routing socket and the function returns zero.
+ * Removes a link to device which is upper to this one. The caller must hold
+ * the RTNL lock.
  */
-int netdev_set_bond_master(struct net_device *slave, struct net_device *master)
+void netdev_upper_dev_unlink(struct net_device *dev,
+			     struct net_device *upper_dev)
 {
-	int err;
+	struct netdev_upper *upper;
 
 	ASSERT_RTNL();
 
-	err = netdev_set_master(slave, master);
-	if (err)
-		return err;
-	if (master)
-		slave->flags |= IFF_SLAVE;
-	else
-		slave->flags &= ~IFF_SLAVE;
-
-	rtmsg_ifinfo(RTM_NEWLINK, slave, IFF_SLAVE);
-	return 0;
+	upper = __netdev_find_upper(dev, upper_dev);
+	if (!upper)
+		return;
+	list_del_rcu(&upper->list);
+	dev_put(upper_dev);
+	kfree_rcu(upper, rcu);
 }
-EXPORT_SYMBOL(netdev_set_bond_master);
+EXPORT_SYMBOL(netdev_upper_dev_unlink);
 
 static void dev_change_rx_flags(struct net_device *dev, int flags)
 {
@@ -4880,7 +4733,7 @@ int dev_set_mtu(struct net_device *dev, int new_mtu)
 	else
 		dev->mtu = new_mtu;
 
-	if (!err && dev->flags & IFF_UP)
+	if (!err)
 		call_netdevice_notifiers(NETDEV_CHANGEMTU, dev);
 	return err;
 }
@@ -4916,372 +4769,33 @@ int dev_set_mac_address(struct net_device *dev, struct sockaddr *sa)
 	if (!netif_device_present(dev))
 		return -ENODEV;
 	err = ops->ndo_set_mac_address(dev, sa);
-	if (!err)
-		call_netdevice_notifiers(NETDEV_CHANGEADDR, dev);
+	if (err)
+		return err;
+	dev->addr_assign_type = NET_ADDR_SET;
+	call_netdevice_notifiers(NETDEV_CHANGEADDR, dev);
 	add_device_randomness(dev->dev_addr, dev->addr_len);
-	return err;
+	return 0;
 }
 EXPORT_SYMBOL(dev_set_mac_address);
 
-/*
- *	Perform the SIOCxIFxxx calls, inside rcu_read_lock()
- */
-static int dev_ifsioc_locked(struct net *net, struct ifreq *ifr, unsigned int cmd)
-{
-	int err;
-	struct net_device *dev = dev_get_by_name_rcu(net, ifr->ifr_name);
-
-	if (!dev)
-		return -ENODEV;
-
-	switch (cmd) {
-	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 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 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 SIOCGIFINDEX:
-		ifr->ifr_ifindex = dev->ifindex;
-		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 = -ENOTTY;
-		break;
-
-	}
-	return err;
-}
-
-/*
- *	Perform the SIOCxIFxxx calls, inside rtnl_lock()
- */
-static int dev_ifsioc(struct net *net, struct ifreq *ifr, unsigned int cmd)
-{
-	int err;
-	struct net_device *dev = __dev_get_by_name(net, ifr->ifr_name);
-	const struct net_device_ops *ops;
-
-	if (!dev)
-		return -ENODEV;
-
-	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 SIOCSIFHWADDR:
-		return dev_set_mac_address(dev, &ifr->ifr_hwaddr);
-
-	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 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 SIOCADDMULTI:
-		if (!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_global(dev, ifr->ifr_hwaddr.sa_data);
-
-	case SIOCDELMULTI:
-		if (!ops->ndo_set_rx_mode ||
-		    ifr->ifr_hwaddr.sa_family != AF_UNSPEC)
-			return -EINVAL;
-		if (!netif_device_present(dev))
-			return -ENODEV;
-		return dev_mc_del_global(dev, ifr->ifr_hwaddr.sa_data);
-
-	case SIOCSIFTXQLEN:
-		if (ifr->ifr_qlen < 0)
-			return -EINVAL;
-		dev->tx_queue_len = ifr->ifr_qlen;
-		return 0;
-
-	case SIOCSIFNAME:
-		ifr->ifr_newname[IFNAMSIZ-1] = '\0';
-		return dev_change_name(dev, ifr->ifr_newname);
-
-	case SIOCSHWTSTAMP:
-		err = net_hwtstamp_validate(ifr);
-		if (err)
-			return err;
-		/* fall through */
-
-	/*
-	 *	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;
-}
-
-/*
- *	This function handles all "interface"-type I/O control requests. The actual
- *	'doing' part of this is dev_ifsioc above.
- */
-
 /**
- *	dev_ioctl	-	network device ioctl
- *	@net: the applicable net namespace
- *	@cmd: command to issue
- *	@arg: pointer to a struct ifreq in user space
+ *	dev_change_carrier - Change device carrier
+ *	@dev: device
+ *	@new_carrier: new value
  *
- *	Issue ioctl functions to devices. This is normally called by the
- *	user space syscall interfaces but can sometimes be useful for
- *	other purposes. The return value is the return from the syscall if
- *	positive or a negative errno code on error.
+ *	Change device carrier
  */
-
-int dev_ioctl(struct net *net, unsigned int cmd, void __user *arg)
+int dev_change_carrier(struct net_device *dev, bool new_carrier)
 {
-	struct ifreq ifr;
-	int ret;
-	char *colon;
-
-	/* One special case: SIOCGIFCONF takes ifconf argument
-	   and requires shared lock, because it sleeps writing
-	   to user space.
-	 */
-
-	if (cmd == SIOCGIFCONF) {
-		rtnl_lock();
-		ret = dev_ifconf(net, (char __user *) arg);
-		rtnl_unlock();
-		return ret;
-	}
-	if (cmd == SIOCGIFNAME)
-		return dev_ifname(net, (struct ifreq __user *)arg);
-
-	if (copy_from_user(&ifr, arg, sizeof(struct ifreq)))
-		return -EFAULT;
-
-	ifr.ifr_name[IFNAMSIZ-1] = 0;
-
-	colon = strchr(ifr.ifr_name, ':');
-	if (colon)
-		*colon = 0;
-
-	/*
-	 *	See which interface the caller is talking about.
-	 */
-
-	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);
-		rcu_read_lock();
-		ret = dev_ifsioc_locked(net, &ifr, cmd);
-		rcu_read_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.
-	 *	- 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 -ENOTTY;
+	const struct net_device_ops *ops = dev->netdev_ops;
 
-	/*
-	 *	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 -ENOTTY;
-	}
+	if (!ops->ndo_change_carrier)
+		return -EOPNOTSUPP;
+	if (!netif_device_present(dev))
+		return -ENODEV;
+	return ops->ndo_change_carrier(dev, new_carrier);
 }
-
+EXPORT_SYMBOL(dev_change_carrier);
 
 /**
  *	dev_new_index	-	allocate an ifindex
@@ -5369,11 +4883,15 @@ static void rollback_registered_many(struct list_head *head)
 		if (dev->netdev_ops->ndo_uninit)
 			dev->netdev_ops->ndo_uninit(dev);
 
-		/* Notifier chain MUST detach us from master device. */
-		WARN_ON(dev->master);
+		/* Notifier chain MUST detach us all upper devices. */
+		WARN_ON(netdev_has_any_upper_dev(dev));
 
 		/* Remove entries from kobject tree */
 		netdev_unregister_kobject(dev);
+#ifdef CONFIG_XPS
+		/* Remove XPS queueing entries */
+		netif_reset_xps_queues_gt(dev, 0);
+#endif
 	}
 
 	synchronize_net();
@@ -5551,10 +5069,9 @@ static int netif_alloc_rx_queues(struct net_device *dev)
 	BUG_ON(count < 1);
 
 	rx = kcalloc(count, sizeof(struct netdev_rx_queue), GFP_KERNEL);
-	if (!rx) {
-		pr_err("netdev: Unable to allocate %u rx queues\n", count);
+	if (!rx)
 		return -ENOMEM;
-	}
+
 	dev->_rx = rx;
 
 	for (i = 0; i < count; i++)
@@ -5585,10 +5102,9 @@ static int netif_alloc_netdev_queues(struct net_device *dev)
 	BUG_ON(count < 1);
 
 	tx = kcalloc(count, sizeof(struct netdev_queue), GFP_KERNEL);
-	if (!tx) {
-		pr_err("netdev: Unable to allocate %u tx queues\n", count);
+	if (!tx)
 		return -ENOMEM;
-	}
+
 	dev->_tx = tx;
 
 	netdev_for_each_tx_queue(dev, netdev_init_one_queue, NULL);
@@ -5647,6 +5163,14 @@ int register_netdevice(struct net_device *dev)
 		}
 	}
 
+	if (((dev->hw_features | dev->features) & NETIF_F_HW_VLAN_FILTER) &&
+	    (!dev->netdev_ops->ndo_vlan_rx_add_vid ||
+	     !dev->netdev_ops->ndo_vlan_rx_kill_vid)) {
+		netdev_WARN(dev, "Buggy VLAN acceleration in driver!\n");
+		ret = -EINVAL;
+		goto err_uninit;
+	}
+
 	ret = -EBUSY;
 	if (!dev->ifindex)
 		dev->ifindex = dev_new_index(net);
@@ -5702,6 +5226,13 @@ int register_netdevice(struct net_device *dev)
 	list_netdevice(dev);
 	add_device_randomness(dev->dev_addr, dev->addr_len);
 
+	/* If the device has permanent device address, driver should
+	 * set dev_addr and also addr_assign_type should be set to
+	 * NET_ADDR_PERM (default value).
+	 */
+	if (dev->addr_assign_type == NET_ADDR_PERM)
+		memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
+
 	/* Notify protocols, that a new device appeared. */
 	ret = call_netdevice_notifiers(NETDEV_REGISTER, dev);
 	ret = notifier_to_errno(ret);
@@ -6008,6 +5539,14 @@ struct netdev_queue *dev_ingress_queue_create(struct net_device *dev)
 
 static const struct ethtool_ops default_ethtool_ops;
 
+void netdev_set_default_ethtool_ops(struct net_device *dev,
+				    const struct ethtool_ops *ops)
+{
+	if (dev->ethtool_ops == &default_ethtool_ops)
+		dev->ethtool_ops = ops;
+}
+EXPORT_SYMBOL_GPL(netdev_set_default_ethtool_ops);
+
 /**
  *	alloc_netdev_mqs - allocate network device
  *	@sizeof_priv:	size of private data to allocate space for
@@ -6052,10 +5591,8 @@ struct net_device *alloc_netdev_mqs(int sizeof_priv, const char *name,
 	alloc_size += NETDEV_ALIGN - 1;
 
 	p = kzalloc(alloc_size, GFP_KERNEL);
-	if (!p) {
-		pr_err("alloc_netdev: Unable to allocate device\n");
+	if (!p)
 		return NULL;
-	}
 
 	dev = PTR_ALIGN(p, NETDEV_ALIGN);
 	dev->padded = (char *)dev - (char *)p;
@@ -6078,6 +5615,7 @@ struct net_device *alloc_netdev_mqs(int sizeof_priv, const char *name,
 	INIT_LIST_HEAD(&dev->napi_list);
 	INIT_LIST_HEAD(&dev->unreg_list);
 	INIT_LIST_HEAD(&dev->link_watch_list);
+	INIT_LIST_HEAD(&dev->upper_dev_list);
 	dev->priv_flags = IFF_XMIT_DST_RELEASE;
 	setup(dev);
 
@@ -6264,7 +5802,6 @@ int dev_change_net_namespace(struct net_device *dev, struct net *net, const char
 		goto out;
 
 	/* Ensure the device has been registrered */
-	err = -EINVAL;
 	if (dev->reg_state != NETREG_REGISTERED)
 		goto out;
 
@@ -6319,6 +5856,9 @@ int dev_change_net_namespace(struct net_device *dev, struct net *net, const char
 	dev_uc_flush(dev);
 	dev_mc_flush(dev);
 
+	/* Send a netdev-removed uevent to the old namespace */
+	kobject_uevent(&dev->dev.kobj, KOBJ_REMOVE);
+
 	/* Actually switch the network namespace */
 	dev_net_set(dev, net);
 
@@ -6330,6 +5870,9 @@ int dev_change_net_namespace(struct net_device *dev, struct net *net, const char
 			dev->iflink = dev->ifindex;
 	}
 
+	/* Send a netdev-add uevent to the new namespace */
+	kobject_uevent(&dev->dev.kobj, KOBJ_ADD);
+
 	/* Fixup kobjects */
 	err = device_rename(&dev->dev, dev->name);
 	WARN_ON(err);
@@ -6662,6 +6205,8 @@ static int __init net_dev_init(void)
 	for (i = 0; i < PTYPE_HASH_SIZE; i++)
 		INIT_LIST_HEAD(&ptype_base[i]);
 
+	INIT_LIST_HEAD(&offload_base);
+
 	if (register_pernet_subsys(&netdev_net_ops))
 		goto out;
 
@@ -6714,19 +6259,9 @@ static int __init net_dev_init(void)
 
 	hotcpu_notifier(dev_cpu_callback, 0);
 	dst_init();
-	dev_mcast_init();
 	rc = 0;
 out:
 	return rc;
 }
 
 subsys_initcall(net_dev_init);
-
-static int __init initialize_hashrnd(void)
-{
-	get_random_bytes(&hashrnd, sizeof(hashrnd));
-	return 0;
-}
-
-late_initcall_sync(initialize_hashrnd);
-
diff --git a/net/core/dev_addr_lists.c b/net/core/dev_addr_lists.c
index 87cc17db2d56..bd2eb9d3e369 100644
--- a/net/core/dev_addr_lists.c
+++ b/net/core/dev_addr_lists.c
@@ -15,7 +15,6 @@
 #include <linux/rtnetlink.h>
 #include <linux/export.h>
 #include <linux/list.h>
-#include <linux/proc_fs.h>
 
 /*
  * General list handling functions
@@ -319,7 +318,8 @@ int dev_addr_del(struct net_device *dev, const unsigned char *addr,
 	 */
 	ha = list_first_entry(&dev->dev_addrs.list,
 			      struct netdev_hw_addr, list);
-	if (ha->addr == dev->dev_addr && ha->refcount == 1)
+	if (!memcmp(ha->addr, addr, dev->addr_len) &&
+	    ha->type == addr_type && ha->refcount == 1)
 		return -ENOENT;
 
 	err = __hw_addr_del(&dev->dev_addrs, addr, dev->addr_len,
@@ -726,76 +726,3 @@ void dev_mc_init(struct net_device *dev)
 	__hw_addr_init(&dev->mc);
 }
 EXPORT_SYMBOL(dev_mc_init);
-
-#ifdef CONFIG_PROC_FS
-#include <linux/seq_file.h>
-
-static int dev_mc_seq_show(struct seq_file *seq, void *v)
-{
-	struct netdev_hw_addr *ha;
-	struct net_device *dev = v;
-
-	if (v == SEQ_START_TOKEN)
-		return 0;
-
-	netif_addr_lock_bh(dev);
-	netdev_for_each_mc_addr(ha, dev) {
-		int i;
-
-		seq_printf(seq, "%-4d %-15s %-5d %-5d ", dev->ifindex,
-			   dev->name, ha->refcount, ha->global_use);
-
-		for (i = 0; i < dev->addr_len; i++)
-			seq_printf(seq, "%02x", ha->addr[i]);
-
-		seq_putc(seq, '\n');
-	}
-	netif_addr_unlock_bh(dev);
-	return 0;
-}
-
-static const struct seq_operations dev_mc_seq_ops = {
-	.start = dev_seq_start,
-	.next  = dev_seq_next,
-	.stop  = dev_seq_stop,
-	.show  = dev_mc_seq_show,
-};
-
-static int dev_mc_seq_open(struct inode *inode, struct file *file)
-{
-	return seq_open_net(inode, file, &dev_mc_seq_ops,
-			    sizeof(struct seq_net_private));
-}
-
-static const struct file_operations dev_mc_seq_fops = {
-	.owner	 = THIS_MODULE,
-	.open    = dev_mc_seq_open,
-	.read    = seq_read,
-	.llseek  = seq_lseek,
-	.release = seq_release_net,
-};
-
-#endif
-
-static int __net_init dev_mc_net_init(struct net *net)
-{
-	if (!proc_net_fops_create(net, "dev_mcast", 0, &dev_mc_seq_fops))
-		return -ENOMEM;
-	return 0;
-}
-
-static void __net_exit dev_mc_net_exit(struct net *net)
-{
-	proc_net_remove(net, "dev_mcast");
-}
-
-static struct pernet_operations __net_initdata dev_mc_net_ops = {
-	.init = dev_mc_net_init,
-	.exit = dev_mc_net_exit,
-};
-
-void __init dev_mcast_init(void)
-{
-	register_pernet_subsys(&dev_mc_net_ops);
-}
-
diff --git a/net/core/dev_ioctl.c b/net/core/dev_ioctl.c
new file mode 100644
index 000000000000..6cc0481faade
--- /dev/null
+++ b/net/core/dev_ioctl.c
@@ -0,0 +1,576 @@
+#include <linux/kmod.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/rtnetlink.h>
+#include <linux/net_tstamp.h>
+#include <linux/wireless.h>
+#include <net/wext.h>
+
+/*
+ *	Map an interface index to its name (SIOCGIFNAME)
+ */
+
+/*
+ *	We need this ioctl for efficient implementation of the
+ *	if_indextoname() function required by the IPv6 API.  Without
+ *	it, we would have to search all the interfaces to find a
+ *	match.  --pb
+ */
+
+static int dev_ifname(struct net *net, struct ifreq __user *arg)
+{
+	struct net_device *dev;
+	struct ifreq ifr;
+	unsigned seq;
+
+	/*
+	 *	Fetch the caller's info block.
+	 */
+
+	if (copy_from_user(&ifr, arg, sizeof(struct ifreq)))
+		return -EFAULT;
+
+retry:
+	seq = read_seqcount_begin(&devnet_rename_seq);
+	rcu_read_lock();
+	dev = dev_get_by_index_rcu(net, ifr.ifr_ifindex);
+	if (!dev) {
+		rcu_read_unlock();
+		return -ENODEV;
+	}
+
+	strcpy(ifr.ifr_name, dev->name);
+	rcu_read_unlock();
+	if (read_seqcount_retry(&devnet_rename_seq, seq))
+		goto retry;
+
+	if (copy_to_user(arg, &ifr, sizeof(struct ifreq)))
+		return -EFAULT;
+	return 0;
+}
+
+static gifconf_func_t *gifconf_list[NPROTO];
+
+/**
+ *	register_gifconf	-	register a SIOCGIF handler
+ *	@family: Address family
+ *	@gifconf: Function handler
+ *
+ *	Register protocol dependent address dumping routines. The handler
+ *	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)
+{
+	if (family >= NPROTO)
+		return -EINVAL;
+	gifconf_list[family] = gifconf;
+	return 0;
+}
+EXPORT_SYMBOL(register_gifconf);
+
+/*
+ *	Perform a SIOCGIFCONF call. This structure will change
+ *	size eventually, and there is nothing I can do about it.
+ *	Thus we will need a 'compatibility mode'.
+ */
+
+static int dev_ifconf(struct net *net, char __user *arg)
+{
+	struct ifconf ifc;
+	struct net_device *dev;
+	char __user *pos;
+	int len;
+	int total;
+	int i;
+
+	/*
+	 *	Fetch the caller's info block.
+	 */
+
+	if (copy_from_user(&ifc, arg, sizeof(struct ifconf)))
+		return -EFAULT;
+
+	pos = ifc.ifc_buf;
+	len = ifc.ifc_len;
+
+	/*
+	 *	Loop over the interfaces, and write an info block for each.
+	 */
+
+	total = 0;
+	for_each_netdev(net, dev) {
+		for (i = 0; i < NPROTO; i++) {
+			if (gifconf_list[i]) {
+				int done;
+				if (!pos)
+					done = gifconf_list[i](dev, NULL, 0);
+				else
+					done = gifconf_list[i](dev, pos + total,
+							       len - total);
+				if (done < 0)
+					return -EFAULT;
+				total += done;
+			}
+		}
+	}
+
+	/*
+	 *	All done.  Write the updated control block back to the caller.
+	 */
+	ifc.ifc_len = total;
+
+	/*
+	 * 	Both BSD and Solaris return 0 here, so we do too.
+	 */
+	return copy_to_user(arg, &ifc, sizeof(struct ifconf)) ? -EFAULT : 0;
+}
+
+/*
+ *	Perform the SIOCxIFxxx calls, inside rcu_read_lock()
+ */
+static int dev_ifsioc_locked(struct net *net, struct ifreq *ifr, unsigned int cmd)
+{
+	int err;
+	struct net_device *dev = dev_get_by_name_rcu(net, ifr->ifr_name);
+
+	if (!dev)
+		return -ENODEV;
+
+	switch (cmd) {
+	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 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 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 SIOCGIFINDEX:
+		ifr->ifr_ifindex = dev->ifindex;
+		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 = -ENOTTY;
+		break;
+
+	}
+	return err;
+}
+
+static int net_hwtstamp_validate(struct ifreq *ifr)
+{
+	struct hwtstamp_config cfg;
+	enum hwtstamp_tx_types tx_type;
+	enum hwtstamp_rx_filters rx_filter;
+	int tx_type_valid = 0;
+	int rx_filter_valid = 0;
+
+	if (copy_from_user(&cfg, ifr->ifr_data, sizeof(cfg)))
+		return -EFAULT;
+
+	if (cfg.flags) /* reserved for future extensions */
+		return -EINVAL;
+
+	tx_type = cfg.tx_type;
+	rx_filter = cfg.rx_filter;
+
+	switch (tx_type) {
+	case HWTSTAMP_TX_OFF:
+	case HWTSTAMP_TX_ON:
+	case HWTSTAMP_TX_ONESTEP_SYNC:
+		tx_type_valid = 1;
+		break;
+	}
+
+	switch (rx_filter) {
+	case HWTSTAMP_FILTER_NONE:
+	case HWTSTAMP_FILTER_ALL:
+	case HWTSTAMP_FILTER_SOME:
+	case HWTSTAMP_FILTER_PTP_V1_L4_EVENT:
+	case HWTSTAMP_FILTER_PTP_V1_L4_SYNC:
+	case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ:
+	case HWTSTAMP_FILTER_PTP_V2_L4_EVENT:
+	case HWTSTAMP_FILTER_PTP_V2_L4_SYNC:
+	case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ:
+	case HWTSTAMP_FILTER_PTP_V2_L2_EVENT:
+	case HWTSTAMP_FILTER_PTP_V2_L2_SYNC:
+	case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ:
+	case HWTSTAMP_FILTER_PTP_V2_EVENT:
+	case HWTSTAMP_FILTER_PTP_V2_SYNC:
+	case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ:
+		rx_filter_valid = 1;
+		break;
+	}
+
+	if (!tx_type_valid || !rx_filter_valid)
+		return -ERANGE;
+
+	return 0;
+}
+
+/*
+ *	Perform the SIOCxIFxxx calls, inside rtnl_lock()
+ */
+static int dev_ifsioc(struct net *net, struct ifreq *ifr, unsigned int cmd)
+{
+	int err;
+	struct net_device *dev = __dev_get_by_name(net, ifr->ifr_name);
+	const struct net_device_ops *ops;
+
+	if (!dev)
+		return -ENODEV;
+
+	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 SIOCSIFHWADDR:
+		return dev_set_mac_address(dev, &ifr->ifr_hwaddr);
+
+	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 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 SIOCADDMULTI:
+		if (!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_global(dev, ifr->ifr_hwaddr.sa_data);
+
+	case SIOCDELMULTI:
+		if (!ops->ndo_set_rx_mode ||
+		    ifr->ifr_hwaddr.sa_family != AF_UNSPEC)
+			return -EINVAL;
+		if (!netif_device_present(dev))
+			return -ENODEV;
+		return dev_mc_del_global(dev, ifr->ifr_hwaddr.sa_data);
+
+	case SIOCSIFTXQLEN:
+		if (ifr->ifr_qlen < 0)
+			return -EINVAL;
+		dev->tx_queue_len = ifr->ifr_qlen;
+		return 0;
+
+	case SIOCSIFNAME:
+		ifr->ifr_newname[IFNAMSIZ-1] = '\0';
+		return dev_change_name(dev, ifr->ifr_newname);
+
+	case SIOCSHWTSTAMP:
+		err = net_hwtstamp_validate(ifr);
+		if (err)
+			return err;
+		/* fall through */
+
+	/*
+	 *	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;
+}
+
+/**
+ *	dev_load 	- load a network module
+ *	@net: the applicable net namespace
+ *	@name: name of interface
+ *
+ *	If a network interface is not present and the process has suitable
+ *	privileges this function loads the module. If module loading is not
+ *	available in this kernel then it becomes a nop.
+ */
+
+void dev_load(struct net *net, const char *name)
+{
+	struct net_device *dev;
+	int no_module;
+
+	rcu_read_lock();
+	dev = dev_get_by_name_rcu(net, name);
+	rcu_read_unlock();
+
+	no_module = !dev;
+	if (no_module && capable(CAP_NET_ADMIN))
+		no_module = request_module("netdev-%s", name);
+	if (no_module && capable(CAP_SYS_MODULE)) {
+		if (!request_module("%s", name))
+			pr_warn("Loading kernel module for a network device with CAP_SYS_MODULE (deprecated).  Use CAP_NET_ADMIN and alias netdev-%s instead.\n",
+				name);
+	}
+}
+EXPORT_SYMBOL(dev_load);
+
+/*
+ *	This function handles all "interface"-type I/O control requests. The actual
+ *	'doing' part of this is dev_ifsioc above.
+ */
+
+/**
+ *	dev_ioctl	-	network device ioctl
+ *	@net: the applicable net namespace
+ *	@cmd: command to issue
+ *	@arg: pointer to a struct ifreq in user space
+ *
+ *	Issue ioctl functions to devices. This is normally called by the
+ *	user space syscall interfaces but can sometimes be useful for
+ *	other purposes. The return value is the return from the syscall if
+ *	positive or a negative errno code on error.
+ */
+
+int dev_ioctl(struct net *net, unsigned int cmd, void __user *arg)
+{
+	struct ifreq ifr;
+	int ret;
+	char *colon;
+
+	/* One special case: SIOCGIFCONF takes ifconf argument
+	   and requires shared lock, because it sleeps writing
+	   to user space.
+	 */
+
+	if (cmd == SIOCGIFCONF) {
+		rtnl_lock();
+		ret = dev_ifconf(net, (char __user *) arg);
+		rtnl_unlock();
+		return ret;
+	}
+	if (cmd == SIOCGIFNAME)
+		return dev_ifname(net, (struct ifreq __user *)arg);
+
+	if (copy_from_user(&ifr, arg, sizeof(struct ifreq)))
+		return -EFAULT;
+
+	ifr.ifr_name[IFNAMSIZ-1] = 0;
+
+	colon = strchr(ifr.ifr_name, ':');
+	if (colon)
+		*colon = 0;
+
+	/*
+	 *	See which interface the caller is talking about.
+	 */
+
+	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);
+		rcu_read_lock();
+		ret = dev_ifsioc_locked(net, &ifr, cmd);
+		rcu_read_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 (!ns_capable(net->user_ns, 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 SIOCSIFMAP:
+	case SIOCSIFTXQLEN:
+		if (!capable(CAP_NET_ADMIN))
+			return -EPERM;
+		/* fall through */
+	/*
+	 *	These ioctl calls:
+	 *	- require local superuser power.
+	 *	- require strict serialization.
+	 *	- do not return a value
+	 */
+	case SIOCSIFFLAGS:
+	case SIOCSIFMETRIC:
+	case SIOCSIFMTU:
+	case SIOCSIFHWADDR:
+	case SIOCSIFSLAVE:
+	case SIOCADDMULTI:
+	case SIOCDELMULTI:
+	case SIOCSIFHWBROADCAST:
+	case SIOCSMIIREG:
+	case SIOCBONDENSLAVE:
+	case SIOCBONDRELEASE:
+	case SIOCBONDSETHWADDR:
+	case SIOCBONDCHANGEACTIVE:
+	case SIOCBRADDIF:
+	case SIOCBRDELIF:
+	case SIOCSHWTSTAMP:
+		if (!ns_capable(net->user_ns, 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 -ENOTTY;
+
+	/*
+	 *	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 -ENOTTY;
+	}
+}
diff --git a/net/core/dst.c b/net/core/dst.c
index ee6153e2cf43..35fd12f1a69c 100644
--- a/net/core/dst.c
+++ b/net/core/dst.c
@@ -179,6 +179,7 @@ void *dst_alloc(struct dst_ops *ops, struct net_device *dev,
 	dst_init_metrics(dst, dst_default_metrics, true);
 	dst->expires = 0UL;
 	dst->path = dst;
+	dst->from = NULL;
 #ifdef CONFIG_XFRM
 	dst->xfrm = NULL;
 #endif
diff --git a/net/core/ethtool.c b/net/core/ethtool.c
index 4d64cc2e3fa9..3e9b2c3e30f0 100644
--- a/net/core/ethtool.c
+++ b/net/core/ethtool.c
@@ -77,6 +77,7 @@ static const char netdev_features_strings[NETDEV_FEATURE_COUNT][ETH_GSTRING_LEN]
 	[NETIF_F_TSO_ECN_BIT] =          "tx-tcp-ecn-segmentation",
 	[NETIF_F_TSO6_BIT] =             "tx-tcp6-segmentation",
 	[NETIF_F_FSO_BIT] =              "tx-fcoe-segmentation",
+	[NETIF_F_GSO_GRE_BIT] =		 "tx-gre-segmentation",
 
 	[NETIF_F_FCOE_CRC_BIT] =         "tx-checksum-fcoe-crc",
 	[NETIF_F_SCTP_CSUM_BIT] =        "tx-checksum-sctp",
@@ -175,7 +176,7 @@ static int __ethtool_get_sset_count(struct net_device *dev, int sset)
 	if (sset == ETH_SS_FEATURES)
 		return ARRAY_SIZE(netdev_features_strings);
 
-	if (ops && ops->get_sset_count && ops->get_strings)
+	if (ops->get_sset_count && ops->get_strings)
 		return ops->get_sset_count(dev, sset);
 	else
 		return -EOPNOTSUPP;
@@ -311,7 +312,7 @@ int __ethtool_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
 {
 	ASSERT_RTNL();
 
-	if (!dev->ethtool_ops || !dev->ethtool_ops->get_settings)
+	if (!dev->ethtool_ops->get_settings)
 		return -EOPNOTSUPP;
 
 	memset(cmd, 0, sizeof(struct ethtool_cmd));
@@ -355,7 +356,7 @@ static noinline_for_stack int ethtool_get_drvinfo(struct net_device *dev,
 
 	memset(&info, 0, sizeof(info));
 	info.cmd = ETHTOOL_GDRVINFO;
-	if (ops && ops->get_drvinfo) {
+	if (ops->get_drvinfo) {
 		ops->get_drvinfo(dev, &info);
 	} else if (dev->dev.parent && dev->dev.parent->driver) {
 		strlcpy(info.bus_info, dev_name(dev->dev.parent),
@@ -370,7 +371,7 @@ static noinline_for_stack int ethtool_get_drvinfo(struct net_device *dev,
 	 * this method of obtaining string set info is deprecated;
 	 * Use ETHTOOL_GSSET_INFO instead.
 	 */
-	if (ops && ops->get_sset_count) {
+	if (ops->get_sset_count) {
 		int rc;
 
 		rc = ops->get_sset_count(dev, ETH_SS_TEST);
@@ -383,9 +384,9 @@ static noinline_for_stack int ethtool_get_drvinfo(struct net_device *dev,
 		if (rc >= 0)
 			info.n_priv_flags = rc;
 	}
-	if (ops && ops->get_regs_len)
+	if (ops->get_regs_len)
 		info.regdump_len = ops->get_regs_len(dev);
-	if (ops && ops->get_eeprom_len)
+	if (ops->get_eeprom_len)
 		info.eedump_len = ops->get_eeprom_len(dev);
 
 	if (copy_to_user(useraddr, &info, sizeof(info)))
@@ -590,13 +591,14 @@ static noinline_for_stack int ethtool_set_rxfh_indir(struct net_device *dev,
 	struct ethtool_rxnfc rx_rings;
 	u32 user_size, dev_size, i;
 	u32 *indir;
+	const struct ethtool_ops *ops = dev->ethtool_ops;
 	int ret;
 
-	if (!dev->ethtool_ops->get_rxfh_indir_size ||
-	    !dev->ethtool_ops->set_rxfh_indir ||
-	    !dev->ethtool_ops->get_rxnfc)
+	if (!ops->get_rxfh_indir_size || !ops->set_rxfh_indir ||
+	    !ops->get_rxnfc)
 		return -EOPNOTSUPP;
-	dev_size = dev->ethtool_ops->get_rxfh_indir_size(dev);
+
+	dev_size = ops->get_rxfh_indir_size(dev);
 	if (dev_size == 0)
 		return -EOPNOTSUPP;
 
@@ -613,7 +615,7 @@ static noinline_for_stack int ethtool_set_rxfh_indir(struct net_device *dev,
 		return -ENOMEM;
 
 	rx_rings.cmd = ETHTOOL_GRXRINGS;
-	ret = dev->ethtool_ops->get_rxnfc(dev, &rx_rings, NULL);
+	ret = ops->get_rxnfc(dev, &rx_rings, NULL);
 	if (ret)
 		goto out;
 
@@ -639,7 +641,7 @@ static noinline_for_stack int ethtool_set_rxfh_indir(struct net_device *dev,
 		}
 	}
 
-	ret = dev->ethtool_ops->set_rxfh_indir(dev, indir);
+	ret = ops->set_rxfh_indir(dev, indir);
 
 out:
 	kfree(indir);
@@ -1082,9 +1084,10 @@ static int ethtool_phys_id(struct net_device *dev, void __user *useraddr)
 {
 	struct ethtool_value id;
 	static bool busy;
+	const struct ethtool_ops *ops = dev->ethtool_ops;
 	int rc;
 
-	if (!dev->ethtool_ops->set_phys_id)
+	if (!ops->set_phys_id)
 		return -EOPNOTSUPP;
 
 	if (busy)
@@ -1093,7 +1096,7 @@ static int ethtool_phys_id(struct net_device *dev, void __user *useraddr)
 	if (copy_from_user(&id, useraddr, sizeof(id)))
 		return -EFAULT;
 
-	rc = dev->ethtool_ops->set_phys_id(dev, ETHTOOL_ID_ACTIVE);
+	rc = ops->set_phys_id(dev, ETHTOOL_ID_ACTIVE);
 	if (rc < 0)
 		return rc;
 
@@ -1118,7 +1121,7 @@ static int ethtool_phys_id(struct net_device *dev, void __user *useraddr)
 			i = n;
 			do {
 				rtnl_lock();
-				rc = dev->ethtool_ops->set_phys_id(dev,
+				rc = ops->set_phys_id(dev,
 				    (i & 1) ? ETHTOOL_ID_OFF : ETHTOOL_ID_ON);
 				rtnl_unlock();
 				if (rc)
@@ -1133,7 +1136,7 @@ static int ethtool_phys_id(struct net_device *dev, void __user *useraddr)
 	dev_put(dev);
 	busy = false;
 
-	(void)dev->ethtool_ops->set_phys_id(dev, ETHTOOL_ID_INACTIVE);
+	(void) ops->set_phys_id(dev, ETHTOOL_ID_INACTIVE);
 	return rc;
 }
 
@@ -1275,7 +1278,7 @@ static int ethtool_get_dump_flag(struct net_device *dev,
 	struct ethtool_dump dump;
 	const struct ethtool_ops *ops = dev->ethtool_ops;
 
-	if (!dev->ethtool_ops->get_dump_flag)
+	if (!ops->get_dump_flag)
 		return -EOPNOTSUPP;
 
 	if (copy_from_user(&dump, useraddr, sizeof(dump)))
@@ -1299,8 +1302,7 @@ static int ethtool_get_dump_data(struct net_device *dev,
 	const struct ethtool_ops *ops = dev->ethtool_ops;
 	void *data = NULL;
 
-	if (!dev->ethtool_ops->get_dump_data ||
-		!dev->ethtool_ops->get_dump_flag)
+	if (!ops->get_dump_data || !ops->get_dump_flag)
 		return -EOPNOTSUPP;
 
 	if (copy_from_user(&dump, useraddr, sizeof(dump)))
@@ -1346,13 +1348,9 @@ static int ethtool_get_ts_info(struct net_device *dev, void __user *useraddr)
 	info.cmd = ETHTOOL_GET_TS_INFO;
 
 	if (phydev && phydev->drv && phydev->drv->ts_info) {
-
 		err = phydev->drv->ts_info(phydev, &info);
-
-	} else if (dev->ethtool_ops && dev->ethtool_ops->get_ts_info) {
-
+	} else if (ops->get_ts_info) {
 		err = ops->get_ts_info(dev, &info);
-
 	} else {
 		info.so_timestamping =
 			SOF_TIMESTAMPING_RX_SOFTWARE |
@@ -1460,7 +1458,7 @@ int dev_ethtool(struct net *net, struct ifreq *ifr)
 	case ETHTOOL_GEEE:
 		break;
 	default:
-		if (!capable(CAP_NET_ADMIN))
+		if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
 			return -EPERM;
 	}
 
diff --git a/net/core/filter.c b/net/core/filter.c
index 3d92ebb7fbcf..2e20b55a7830 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -39,6 +39,7 @@
 #include <linux/reciprocal_div.h>
 #include <linux/ratelimit.h>
 #include <linux/seccomp.h>
+#include <linux/if_vlan.h>
 
 /* No hurry in this branch
  *
@@ -341,6 +342,12 @@ load_b:
 		case BPF_S_ANC_CPU:
 			A = raw_smp_processor_id();
 			continue;
+		case BPF_S_ANC_VLAN_TAG:
+			A = vlan_tx_tag_get(skb);
+			continue;
+		case BPF_S_ANC_VLAN_TAG_PRESENT:
+			A = !!vlan_tx_tag_present(skb);
+			continue;
 		case BPF_S_ANC_NLATTR: {
 			struct nlattr *nla;
 
@@ -525,6 +532,7 @@ int sk_chk_filter(struct sock_filter *filter, unsigned int flen)
 		[BPF_JMP|BPF_JSET|BPF_X] = BPF_S_JMP_JSET_X,
 	};
 	int pc;
+	bool anc_found;
 
 	if (flen == 0 || flen > BPF_MAXINSNS)
 		return -EINVAL;
@@ -585,8 +593,10 @@ int sk_chk_filter(struct sock_filter *filter, unsigned int flen)
 		case BPF_S_LD_W_ABS:
 		case BPF_S_LD_H_ABS:
 		case BPF_S_LD_B_ABS:
+			anc_found = false;
 #define ANCILLARY(CODE) case SKF_AD_OFF + SKF_AD_##CODE:	\
 				code = BPF_S_ANC_##CODE;	\
+				anc_found = true;		\
 				break
 			switch (ftest->k) {
 			ANCILLARY(PROTOCOL);
@@ -600,7 +610,13 @@ int sk_chk_filter(struct sock_filter *filter, unsigned int flen)
 			ANCILLARY(RXHASH);
 			ANCILLARY(CPU);
 			ANCILLARY(ALU_XOR_X);
+			ANCILLARY(VLAN_TAG);
+			ANCILLARY(VLAN_TAG_PRESENT);
 			}
+
+			/* ancillary operation unknown or unsupported */
+			if (anc_found == false && ftest->k >= SKF_AD_OFF)
+				return -EINVAL;
 		}
 		ftest->code = code;
 	}
@@ -705,6 +721,9 @@ int sk_attach_filter(struct sock_fprog *fprog, struct sock *sk)
 	unsigned int fsize = sizeof(struct sock_filter) * fprog->len;
 	int err;
 
+	if (sock_flag(sk, SOCK_FILTER_LOCKED))
+		return -EPERM;
+
 	/* Make sure new filter is there and in the right amounts. */
 	if (fprog->filter == NULL)
 		return -EINVAL;
@@ -741,6 +760,9 @@ int sk_detach_filter(struct sock *sk)
 	int ret = -ENOENT;
 	struct sk_filter *filter;
 
+	if (sock_flag(sk, SOCK_FILTER_LOCKED))
+		return -EPERM;
+
 	filter = rcu_dereference_protected(sk->sk_filter,
 					   sock_owned_by_user(sk));
 	if (filter) {
@@ -751,3 +773,133 @@ int sk_detach_filter(struct sock *sk)
 	return ret;
 }
 EXPORT_SYMBOL_GPL(sk_detach_filter);
+
+static void sk_decode_filter(struct sock_filter *filt, struct sock_filter *to)
+{
+	static const u16 decodes[] = {
+		[BPF_S_ALU_ADD_K]	= BPF_ALU|BPF_ADD|BPF_K,
+		[BPF_S_ALU_ADD_X]	= BPF_ALU|BPF_ADD|BPF_X,
+		[BPF_S_ALU_SUB_K]	= BPF_ALU|BPF_SUB|BPF_K,
+		[BPF_S_ALU_SUB_X]	= BPF_ALU|BPF_SUB|BPF_X,
+		[BPF_S_ALU_MUL_K]	= BPF_ALU|BPF_MUL|BPF_K,
+		[BPF_S_ALU_MUL_X]	= BPF_ALU|BPF_MUL|BPF_X,
+		[BPF_S_ALU_DIV_X]	= BPF_ALU|BPF_DIV|BPF_X,
+		[BPF_S_ALU_MOD_K]	= BPF_ALU|BPF_MOD|BPF_K,
+		[BPF_S_ALU_MOD_X]	= BPF_ALU|BPF_MOD|BPF_X,
+		[BPF_S_ALU_AND_K]	= BPF_ALU|BPF_AND|BPF_K,
+		[BPF_S_ALU_AND_X]	= BPF_ALU|BPF_AND|BPF_X,
+		[BPF_S_ALU_OR_K]	= BPF_ALU|BPF_OR|BPF_K,
+		[BPF_S_ALU_OR_X]	= BPF_ALU|BPF_OR|BPF_X,
+		[BPF_S_ALU_XOR_K]	= BPF_ALU|BPF_XOR|BPF_K,
+		[BPF_S_ALU_XOR_X]	= BPF_ALU|BPF_XOR|BPF_X,
+		[BPF_S_ALU_LSH_K]	= BPF_ALU|BPF_LSH|BPF_K,
+		[BPF_S_ALU_LSH_X]	= BPF_ALU|BPF_LSH|BPF_X,
+		[BPF_S_ALU_RSH_K]	= BPF_ALU|BPF_RSH|BPF_K,
+		[BPF_S_ALU_RSH_X]	= BPF_ALU|BPF_RSH|BPF_X,
+		[BPF_S_ALU_NEG]		= BPF_ALU|BPF_NEG,
+		[BPF_S_LD_W_ABS]	= BPF_LD|BPF_W|BPF_ABS,
+		[BPF_S_LD_H_ABS]	= BPF_LD|BPF_H|BPF_ABS,
+		[BPF_S_LD_B_ABS]	= BPF_LD|BPF_B|BPF_ABS,
+		[BPF_S_ANC_PROTOCOL]	= BPF_LD|BPF_B|BPF_ABS,
+		[BPF_S_ANC_PKTTYPE]	= BPF_LD|BPF_B|BPF_ABS,
+		[BPF_S_ANC_IFINDEX]	= BPF_LD|BPF_B|BPF_ABS,
+		[BPF_S_ANC_NLATTR]	= BPF_LD|BPF_B|BPF_ABS,
+		[BPF_S_ANC_NLATTR_NEST]	= BPF_LD|BPF_B|BPF_ABS,
+		[BPF_S_ANC_MARK]	= BPF_LD|BPF_B|BPF_ABS,
+		[BPF_S_ANC_QUEUE]	= BPF_LD|BPF_B|BPF_ABS,
+		[BPF_S_ANC_HATYPE]	= BPF_LD|BPF_B|BPF_ABS,
+		[BPF_S_ANC_RXHASH]	= BPF_LD|BPF_B|BPF_ABS,
+		[BPF_S_ANC_CPU]		= BPF_LD|BPF_B|BPF_ABS,
+		[BPF_S_ANC_ALU_XOR_X]	= BPF_LD|BPF_B|BPF_ABS,
+		[BPF_S_ANC_SECCOMP_LD_W] = BPF_LD|BPF_B|BPF_ABS,
+		[BPF_S_ANC_VLAN_TAG]	= BPF_LD|BPF_B|BPF_ABS,
+		[BPF_S_ANC_VLAN_TAG_PRESENT] = BPF_LD|BPF_B|BPF_ABS,
+		[BPF_S_LD_W_LEN]	= BPF_LD|BPF_W|BPF_LEN,
+		[BPF_S_LD_W_IND]	= BPF_LD|BPF_W|BPF_IND,
+		[BPF_S_LD_H_IND]	= BPF_LD|BPF_H|BPF_IND,
+		[BPF_S_LD_B_IND]	= BPF_LD|BPF_B|BPF_IND,
+		[BPF_S_LD_IMM]		= BPF_LD|BPF_IMM,
+		[BPF_S_LDX_W_LEN]	= BPF_LDX|BPF_W|BPF_LEN,
+		[BPF_S_LDX_B_MSH]	= BPF_LDX|BPF_B|BPF_MSH,
+		[BPF_S_LDX_IMM]		= BPF_LDX|BPF_IMM,
+		[BPF_S_MISC_TAX]	= BPF_MISC|BPF_TAX,
+		[BPF_S_MISC_TXA]	= BPF_MISC|BPF_TXA,
+		[BPF_S_RET_K]		= BPF_RET|BPF_K,
+		[BPF_S_RET_A]		= BPF_RET|BPF_A,
+		[BPF_S_ALU_DIV_K]	= BPF_ALU|BPF_DIV|BPF_K,
+		[BPF_S_LD_MEM]		= BPF_LD|BPF_MEM,
+		[BPF_S_LDX_MEM]		= BPF_LDX|BPF_MEM,
+		[BPF_S_ST]		= BPF_ST,
+		[BPF_S_STX]		= BPF_STX,
+		[BPF_S_JMP_JA]		= BPF_JMP|BPF_JA,
+		[BPF_S_JMP_JEQ_K]	= BPF_JMP|BPF_JEQ|BPF_K,
+		[BPF_S_JMP_JEQ_X]	= BPF_JMP|BPF_JEQ|BPF_X,
+		[BPF_S_JMP_JGE_K]	= BPF_JMP|BPF_JGE|BPF_K,
+		[BPF_S_JMP_JGE_X]	= BPF_JMP|BPF_JGE|BPF_X,
+		[BPF_S_JMP_JGT_K]	= BPF_JMP|BPF_JGT|BPF_K,
+		[BPF_S_JMP_JGT_X]	= BPF_JMP|BPF_JGT|BPF_X,
+		[BPF_S_JMP_JSET_K]	= BPF_JMP|BPF_JSET|BPF_K,
+		[BPF_S_JMP_JSET_X]	= BPF_JMP|BPF_JSET|BPF_X,
+	};
+	u16 code;
+
+	code = filt->code;
+
+	to->code = decodes[code];
+	to->jt = filt->jt;
+	to->jf = filt->jf;
+
+	if (code == BPF_S_ALU_DIV_K) {
+		/*
+		 * When loaded this rule user gave us X, which was
+		 * translated into R = r(X). Now we calculate the
+		 * RR = r(R) and report it back. If next time this
+		 * value is loaded and RRR = r(RR) is calculated
+		 * then the R == RRR will be true.
+		 *
+		 * One exception. X == 1 translates into R == 0 and
+		 * we can't calculate RR out of it with r().
+		 */
+
+		if (filt->k == 0)
+			to->k = 1;
+		else
+			to->k = reciprocal_value(filt->k);
+
+		BUG_ON(reciprocal_value(to->k) != filt->k);
+	} else
+		to->k = filt->k;
+}
+
+int sk_get_filter(struct sock *sk, struct sock_filter __user *ubuf, unsigned int len)
+{
+	struct sk_filter *filter;
+	int i, ret;
+
+	lock_sock(sk);
+	filter = rcu_dereference_protected(sk->sk_filter,
+			sock_owned_by_user(sk));
+	ret = 0;
+	if (!filter)
+		goto out;
+	ret = filter->len;
+	if (!len)
+		goto out;
+	ret = -EINVAL;
+	if (len < filter->len)
+		goto out;
+
+	ret = -EFAULT;
+	for (i = 0; i < filter->len; i++) {
+		struct sock_filter fb;
+
+		sk_decode_filter(&filter->insns[i], &fb);
+		if (copy_to_user(&ubuf[i], &fb, sizeof(fb)))
+			goto out;
+	}
+
+	ret = filter->len;
+out:
+	release_sock(sk);
+	return ret;
+}
diff --git a/net/core/flow.c b/net/core/flow.c
index e318c7e98042..c56ea6f7f6c7 100644
--- a/net/core/flow.c
+++ b/net/core/flow.c
@@ -132,14 +132,14 @@ static void __flow_cache_shrink(struct flow_cache *fc,
 				int shrink_to)
 {
 	struct flow_cache_entry *fle;
-	struct hlist_node *entry, *tmp;
+	struct hlist_node *tmp;
 	LIST_HEAD(gc_list);
 	int i, deleted = 0;
 
 	for (i = 0; i < flow_cache_hash_size(fc); i++) {
 		int saved = 0;
 
-		hlist_for_each_entry_safe(fle, entry, tmp,
+		hlist_for_each_entry_safe(fle, tmp,
 					  &fcp->hash_table[i], u.hlist) {
 			if (saved < shrink_to &&
 			    flow_entry_valid(fle)) {
@@ -211,7 +211,6 @@ flow_cache_lookup(struct net *net, const struct flowi *key, u16 family, u8 dir,
 	struct flow_cache *fc = &flow_cache_global;
 	struct flow_cache_percpu *fcp;
 	struct flow_cache_entry *fle, *tfle;
-	struct hlist_node *entry;
 	struct flow_cache_object *flo;
 	size_t keysize;
 	unsigned int hash;
@@ -235,7 +234,7 @@ flow_cache_lookup(struct net *net, const struct flowi *key, u16 family, u8 dir,
 		flow_new_hash_rnd(fc, fcp);
 
 	hash = flow_hash_code(fc, fcp, key, keysize);
-	hlist_for_each_entry(tfle, entry, &fcp->hash_table[hash], u.hlist) {
+	hlist_for_each_entry(tfle, &fcp->hash_table[hash], u.hlist) {
 		if (tfle->net == net &&
 		    tfle->family == family &&
 		    tfle->dir == dir &&
@@ -286,7 +285,7 @@ nocache:
 		else
 			fle->genid--;
 	} else {
-		if (flo && !IS_ERR(flo))
+		if (!IS_ERR_OR_NULL(flo))
 			flo->ops->delete(flo);
 	}
 ret_object:
@@ -301,13 +300,13 @@ static void flow_cache_flush_tasklet(unsigned long data)
 	struct flow_cache *fc = info->cache;
 	struct flow_cache_percpu *fcp;
 	struct flow_cache_entry *fle;
-	struct hlist_node *entry, *tmp;
+	struct hlist_node *tmp;
 	LIST_HEAD(gc_list);
 	int i, deleted = 0;
 
 	fcp = this_cpu_ptr(fc->percpu);
 	for (i = 0; i < flow_cache_hash_size(fc); i++) {
-		hlist_for_each_entry_safe(fle, entry, tmp,
+		hlist_for_each_entry_safe(fle, tmp,
 					  &fcp->hash_table[i], u.hlist) {
 			if (flow_entry_valid(fle))
 				continue;
@@ -327,11 +326,9 @@ static void flow_cache_flush_tasklet(unsigned long data)
 static void flow_cache_flush_per_cpu(void *data)
 {
 	struct flow_flush_info *info = data;
-	int cpu;
 	struct tasklet_struct *tasklet;
 
-	cpu = smp_processor_id();
-	tasklet = &per_cpu_ptr(info->cache->percpu, cpu)->flush_tasklet;
+	tasklet = this_cpu_ptr(&info->cache->percpu->flush_tasklet);
 	tasklet->data = (unsigned long)info;
 	tasklet_schedule(tasklet);
 }
diff --git a/net/core/flow_dissector.c b/net/core/flow_dissector.c
index 466820b6e344..9d4c7201400d 100644
--- a/net/core/flow_dissector.c
+++ b/net/core/flow_dissector.c
@@ -143,3 +143,176 @@ ipv6:
 	return true;
 }
 EXPORT_SYMBOL(skb_flow_dissect);
+
+static u32 hashrnd __read_mostly;
+
+/*
+ * __skb_get_rxhash: calculate a flow hash based on src/dst addresses
+ * and src/dst port numbers.  Sets rxhash in skb to non-zero hash value
+ * on success, zero indicates no valid hash.  Also, sets l4_rxhash in skb
+ * if hash is a canonical 4-tuple hash over transport ports.
+ */
+void __skb_get_rxhash(struct sk_buff *skb)
+{
+	struct flow_keys keys;
+	u32 hash;
+
+	if (!skb_flow_dissect(skb, &keys))
+		return;
+
+	if (keys.ports)
+		skb->l4_rxhash = 1;
+
+	/* get a consistent hash (same value on both flow directions) */
+	if (((__force u32)keys.dst < (__force u32)keys.src) ||
+	    (((__force u32)keys.dst == (__force u32)keys.src) &&
+	     ((__force u16)keys.port16[1] < (__force u16)keys.port16[0]))) {
+		swap(keys.dst, keys.src);
+		swap(keys.port16[0], keys.port16[1]);
+	}
+
+	hash = jhash_3words((__force u32)keys.dst,
+			    (__force u32)keys.src,
+			    (__force u32)keys.ports, hashrnd);
+	if (!hash)
+		hash = 1;
+
+	skb->rxhash = hash;
+}
+EXPORT_SYMBOL(__skb_get_rxhash);
+
+/*
+ * Returns a Tx hash based on the given packet descriptor a Tx queues' number
+ * to be used as a distribution range.
+ */
+u16 __skb_tx_hash(const struct net_device *dev, const struct sk_buff *skb,
+		  unsigned int num_tx_queues)
+{
+	u32 hash;
+	u16 qoffset = 0;
+	u16 qcount = num_tx_queues;
+
+	if (skb_rx_queue_recorded(skb)) {
+		hash = skb_get_rx_queue(skb);
+		while (unlikely(hash >= num_tx_queues))
+			hash -= num_tx_queues;
+		return hash;
+	}
+
+	if (dev->num_tc) {
+		u8 tc = netdev_get_prio_tc_map(dev, skb->priority);
+		qoffset = dev->tc_to_txq[tc].offset;
+		qcount = dev->tc_to_txq[tc].count;
+	}
+
+	if (skb->sk && skb->sk->sk_hash)
+		hash = skb->sk->sk_hash;
+	else
+		hash = (__force u16) skb->protocol;
+	hash = jhash_1word(hash, hashrnd);
+
+	return (u16) (((u64) hash * qcount) >> 32) + qoffset;
+}
+EXPORT_SYMBOL(__skb_tx_hash);
+
+static inline u16 dev_cap_txqueue(struct net_device *dev, u16 queue_index)
+{
+	if (unlikely(queue_index >= dev->real_num_tx_queues)) {
+		net_warn_ratelimited("%s selects TX queue %d, but real number of TX queues is %d\n",
+				     dev->name, queue_index,
+				     dev->real_num_tx_queues);
+		return 0;
+	}
+	return queue_index;
+}
+
+static inline int get_xps_queue(struct net_device *dev, struct sk_buff *skb)
+{
+#ifdef CONFIG_XPS
+	struct xps_dev_maps *dev_maps;
+	struct xps_map *map;
+	int queue_index = -1;
+
+	rcu_read_lock();
+	dev_maps = rcu_dereference(dev->xps_maps);
+	if (dev_maps) {
+		map = rcu_dereference(
+		    dev_maps->cpu_map[raw_smp_processor_id()]);
+		if (map) {
+			if (map->len == 1)
+				queue_index = map->queues[0];
+			else {
+				u32 hash;
+				if (skb->sk && skb->sk->sk_hash)
+					hash = skb->sk->sk_hash;
+				else
+					hash = (__force u16) skb->protocol ^
+					    skb->rxhash;
+				hash = jhash_1word(hash, hashrnd);
+				queue_index = map->queues[
+				    ((u64)hash * map->len) >> 32];
+			}
+			if (unlikely(queue_index >= dev->real_num_tx_queues))
+				queue_index = -1;
+		}
+	}
+	rcu_read_unlock();
+
+	return queue_index;
+#else
+	return -1;
+#endif
+}
+
+u16 __netdev_pick_tx(struct net_device *dev, struct sk_buff *skb)
+{
+	struct sock *sk = skb->sk;
+	int queue_index = sk_tx_queue_get(sk);
+
+	if (queue_index < 0 || skb->ooo_okay ||
+	    queue_index >= dev->real_num_tx_queues) {
+		int new_index = get_xps_queue(dev, skb);
+		if (new_index < 0)
+			new_index = skb_tx_hash(dev, skb);
+
+		if (queue_index != new_index && sk) {
+			struct dst_entry *dst =
+				    rcu_dereference_check(sk->sk_dst_cache, 1);
+
+			if (dst && skb_dst(skb) == dst)
+				sk_tx_queue_set(sk, queue_index);
+
+		}
+
+		queue_index = new_index;
+	}
+
+	return queue_index;
+}
+EXPORT_SYMBOL(__netdev_pick_tx);
+
+struct netdev_queue *netdev_pick_tx(struct net_device *dev,
+				    struct sk_buff *skb)
+{
+	int queue_index = 0;
+
+	if (dev->real_num_tx_queues != 1) {
+		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 = __netdev_pick_tx(dev, skb);
+		queue_index = dev_cap_txqueue(dev, queue_index);
+	}
+
+	skb_set_queue_mapping(skb, queue_index);
+	return netdev_get_tx_queue(dev, queue_index);
+}
+
+static int __init initialize_hashrnd(void)
+{
+	get_random_bytes(&hashrnd, sizeof(hashrnd));
+	return 0;
+}
+
+late_initcall_sync(initialize_hashrnd);
diff --git a/net/core/neighbour.c b/net/core/neighbour.c
index 22571488730a..3863b8f639c5 100644
--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c
@@ -290,15 +290,7 @@ static struct neighbour *neigh_alloc(struct neigh_table *tbl, struct net_device
 			goto out_entries;
 	}
 
-	if (tbl->entry_size)
-		n = kzalloc(tbl->entry_size, GFP_ATOMIC);
-	else {
-		int sz = sizeof(*n) + tbl->key_len;
-
-		sz = ALIGN(sz, NEIGH_PRIV_ALIGN);
-		sz += dev->neigh_priv_len;
-		n = kzalloc(sz, GFP_ATOMIC);
-	}
+	n = kzalloc(tbl->entry_size + dev->neigh_priv_len, GFP_ATOMIC);
 	if (!n)
 		goto out_entries;
 
@@ -778,6 +770,9 @@ static void neigh_periodic_work(struct work_struct *work)
 	nht = rcu_dereference_protected(tbl->nht,
 					lockdep_is_held(&tbl->lock));
 
+	if (atomic_read(&tbl->entries) < tbl->gc_thresh1)
+		goto out;
+
 	/*
 	 *	periodically recompute ReachableTime from random function
 	 */
@@ -832,6 +827,7 @@ next_elt:
 		nht = rcu_dereference_protected(tbl->nht,
 						lockdep_is_held(&tbl->lock));
 	}
+out:
 	/* Cycle through all hash buckets every base_reachable_time/2 ticks.
 	 * ARP entry timeouts range from 1/2 base_reachable_time to 3/2
 	 * base_reachable_time.
@@ -1542,6 +1538,12 @@ static void neigh_table_init_no_netlink(struct neigh_table *tbl)
 	if (!tbl->nht || !tbl->phash_buckets)
 		panic("cannot allocate neighbour cache hashes");
 
+	if (!tbl->entry_size)
+		tbl->entry_size = ALIGN(offsetof(struct neighbour, primary_key) +
+					tbl->key_len, NEIGH_PRIV_ALIGN);
+	else
+		WARN_ON(tbl->entry_size % NEIGH_PRIV_ALIGN);
+
 	rwlock_init(&tbl->lock);
 	INIT_DEFERRABLE_WORK(&tbl->gc_work, neigh_periodic_work);
 	schedule_delayed_work(&tbl->gc_work, tbl->parms.reachable_time);
@@ -1787,8 +1789,7 @@ static int neightbl_fill_parms(struct sk_buff *skb, struct neigh_parms *parms)
 	    nla_put_u32(skb, NDTPA_QUEUE_LENBYTES, parms->queue_len_bytes) ||
 	    /* approximative value for deprecated QUEUE_LEN (in packets) */
 	    nla_put_u32(skb, NDTPA_QUEUE_LEN,
-			DIV_ROUND_UP(parms->queue_len_bytes,
-				     SKB_TRUESIZE(ETH_FRAME_LEN))) ||
+			parms->queue_len_bytes / SKB_TRUESIZE(ETH_FRAME_LEN)) ||
 	    nla_put_u32(skb, NDTPA_PROXY_QLEN, parms->proxy_qlen) ||
 	    nla_put_u32(skb, NDTPA_APP_PROBES, parms->app_probes) ||
 	    nla_put_u32(skb, NDTPA_UCAST_PROBES, parms->ucast_probes) ||
@@ -2770,6 +2771,8 @@ EXPORT_SYMBOL(neigh_app_ns);
 #endif /* CONFIG_ARPD */
 
 #ifdef CONFIG_SYSCTL
+static int zero;
+static int unres_qlen_max = INT_MAX / SKB_TRUESIZE(ETH_FRAME_LEN);
 
 static int proc_unres_qlen(ctl_table *ctl, int write, void __user *buffer,
 			   size_t *lenp, loff_t *ppos)
@@ -2777,9 +2780,13 @@ static int proc_unres_qlen(ctl_table *ctl, int write, void __user *buffer,
 	int size, ret;
 	ctl_table tmp = *ctl;
 
+	tmp.extra1 = &zero;
+	tmp.extra2 = &unres_qlen_max;
 	tmp.data = &size;
-	size = DIV_ROUND_UP(*(int *)ctl->data, SKB_TRUESIZE(ETH_FRAME_LEN));
-	ret = proc_dointvec(&tmp, write, buffer, lenp, ppos);
+
+	size = *(int *)ctl->data / SKB_TRUESIZE(ETH_FRAME_LEN);
+	ret = proc_dointvec_minmax(&tmp, write, buffer, lenp, ppos);
+
 	if (write && !ret)
 		*(int *)ctl->data = size * SKB_TRUESIZE(ETH_FRAME_LEN);
 	return ret;
@@ -2865,7 +2872,8 @@ static struct neigh_sysctl_table {
 			.procname	= "unres_qlen_bytes",
 			.maxlen		= sizeof(int),
 			.mode		= 0644,
-			.proc_handler	= proc_dointvec,
+			.extra1		= &zero,
+			.proc_handler   = proc_dointvec_minmax,
 		},
 		[NEIGH_VAR_PROXY_QLEN] = {
 			.procname	= "proxy_qlen",
@@ -2987,6 +2995,10 @@ int neigh_sysctl_register(struct net_device *dev, struct neigh_parms *p,
 		t->neigh_vars[NEIGH_VAR_BASE_REACHABLE_TIME_MS].extra1 = dev;
 	}
 
+	/* Don't export sysctls to unprivileged users */
+	if (neigh_parms_net(p)->user_ns != &init_user_ns)
+		t->neigh_vars[0].procname = NULL;
+
 	snprintf(neigh_path, sizeof(neigh_path), "net/%s/neigh/%s",
 		p_name, dev_name_source);
 	t->sysctl_header =
diff --git a/net/core/net-procfs.c b/net/core/net-procfs.c
new file mode 100644
index 000000000000..3174f1998ee6
--- /dev/null
+++ b/net/core/net-procfs.c
@@ -0,0 +1,411 @@
+#include <linux/netdevice.h>
+#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
+#include <net/wext.h>
+
+#define BUCKET_SPACE (32 - NETDEV_HASHBITS - 1)
+
+#define get_bucket(x) ((x) >> BUCKET_SPACE)
+#define get_offset(x) ((x) & ((1 << BUCKET_SPACE) - 1))
+#define set_bucket_offset(b, o) ((b) << BUCKET_SPACE | (o))
+
+extern struct list_head ptype_all __read_mostly;
+extern struct list_head ptype_base[PTYPE_HASH_SIZE] __read_mostly;
+
+static inline struct net_device *dev_from_same_bucket(struct seq_file *seq, loff_t *pos)
+{
+	struct net *net = seq_file_net(seq);
+	struct net_device *dev;
+	struct hlist_head *h;
+	unsigned int count = 0, offset = get_offset(*pos);
+
+	h = &net->dev_name_head[get_bucket(*pos)];
+	hlist_for_each_entry_rcu(dev, h, name_hlist) {
+		if (++count == offset)
+			return dev;
+	}
+
+	return NULL;
+}
+
+static inline struct net_device *dev_from_bucket(struct seq_file *seq, loff_t *pos)
+{
+	struct net_device *dev;
+	unsigned int bucket;
+
+	do {
+		dev = dev_from_same_bucket(seq, pos);
+		if (dev)
+			return dev;
+
+		bucket = get_bucket(*pos) + 1;
+		*pos = set_bucket_offset(bucket, 1);
+	} while (bucket < NETDEV_HASHENTRIES);
+
+	return NULL;
+}
+
+/*
+ *	This is invoked by the /proc filesystem handler to display a device
+ *	in detail.
+ */
+static void *dev_seq_start(struct seq_file *seq, loff_t *pos)
+	__acquires(RCU)
+{
+	rcu_read_lock();
+	if (!*pos)
+		return SEQ_START_TOKEN;
+
+	if (get_bucket(*pos) >= NETDEV_HASHENTRIES)
+		return NULL;
+
+	return dev_from_bucket(seq, pos);
+}
+
+static void *dev_seq_next(struct seq_file *seq, void *v, loff_t *pos)
+{
+	++*pos;
+	return dev_from_bucket(seq, pos);
+}
+
+static void dev_seq_stop(struct seq_file *seq, void *v)
+	__releases(RCU)
+{
+	rcu_read_unlock();
+}
+
+static void dev_seq_printf_stats(struct seq_file *seq, struct net_device *dev)
+{
+	struct rtnl_link_stats64 temp;
+	const struct rtnl_link_stats64 *stats = dev_get_stats(dev, &temp);
+
+	seq_printf(seq, "%6s: %7llu %7llu %4llu %4llu %4llu %5llu %10llu %9llu "
+		   "%8llu %7llu %4llu %4llu %4llu %5llu %7llu %10llu\n",
+		   dev->name, stats->rx_bytes, stats->rx_packets,
+		   stats->rx_errors,
+		   stats->rx_dropped + stats->rx_missed_errors,
+		   stats->rx_fifo_errors,
+		   stats->rx_length_errors + stats->rx_over_errors +
+		    stats->rx_crc_errors + stats->rx_frame_errors,
+		   stats->rx_compressed, stats->multicast,
+		   stats->tx_bytes, stats->tx_packets,
+		   stats->tx_errors, stats->tx_dropped,
+		   stats->tx_fifo_errors, stats->collisions,
+		   stats->tx_carrier_errors +
+		    stats->tx_aborted_errors +
+		    stats->tx_window_errors +
+		    stats->tx_heartbeat_errors,
+		   stats->tx_compressed);
+}
+
+/*
+ *	Called from the PROCfs module. This now uses the new arbitrary sized
+ *	/proc/net interface to create /proc/net/dev
+ */
+static int dev_seq_show(struct seq_file *seq, void *v)
+{
+	if (v == SEQ_START_TOKEN)
+		seq_puts(seq, "Inter-|   Receive                            "
+			      "                    |  Transmit\n"
+			      " face |bytes    packets errs drop fifo frame "
+			      "compressed multicast|bytes    packets errs "
+			      "drop fifo colls carrier compressed\n");
+	else
+		dev_seq_printf_stats(seq, v);
+	return 0;
+}
+
+static struct softnet_data *softnet_get_online(loff_t *pos)
+{
+	struct softnet_data *sd = NULL;
+
+	while (*pos < nr_cpu_ids)
+		if (cpu_online(*pos)) {
+			sd = &per_cpu(softnet_data, *pos);
+			break;
+		} else
+			++*pos;
+	return sd;
+}
+
+static void *softnet_seq_start(struct seq_file *seq, loff_t *pos)
+{
+	return softnet_get_online(pos);
+}
+
+static void *softnet_seq_next(struct seq_file *seq, void *v, loff_t *pos)
+{
+	++*pos;
+	return softnet_get_online(pos);
+}
+
+static void softnet_seq_stop(struct seq_file *seq, void *v)
+{
+}
+
+static int softnet_seq_show(struct seq_file *seq, void *v)
+{
+	struct softnet_data *sd = v;
+
+	seq_printf(seq, "%08x %08x %08x %08x %08x %08x %08x %08x %08x %08x\n",
+		   sd->processed, sd->dropped, sd->time_squeeze, 0,
+		   0, 0, 0, 0, /* was fastroute */
+		   sd->cpu_collision, sd->received_rps);
+	return 0;
+}
+
+static const struct seq_operations dev_seq_ops = {
+	.start = dev_seq_start,
+	.next  = dev_seq_next,
+	.stop  = dev_seq_stop,
+	.show  = dev_seq_show,
+};
+
+static int dev_seq_open(struct inode *inode, struct file *file)
+{
+	return seq_open_net(inode, file, &dev_seq_ops,
+			    sizeof(struct seq_net_private));
+}
+
+static const struct file_operations dev_seq_fops = {
+	.owner	 = THIS_MODULE,
+	.open    = dev_seq_open,
+	.read    = seq_read,
+	.llseek  = seq_lseek,
+	.release = seq_release_net,
+};
+
+static const struct seq_operations softnet_seq_ops = {
+	.start = softnet_seq_start,
+	.next  = softnet_seq_next,
+	.stop  = softnet_seq_stop,
+	.show  = softnet_seq_show,
+};
+
+static int softnet_seq_open(struct inode *inode, struct file *file)
+{
+	return seq_open(file, &softnet_seq_ops);
+}
+
+static const struct file_operations softnet_seq_fops = {
+	.owner	 = THIS_MODULE,
+	.open    = softnet_seq_open,
+	.read    = seq_read,
+	.llseek  = seq_lseek,
+	.release = seq_release,
+};
+
+static void *ptype_get_idx(loff_t pos)
+{
+	struct packet_type *pt = NULL;
+	loff_t i = 0;
+	int t;
+
+	list_for_each_entry_rcu(pt, &ptype_all, list) {
+		if (i == pos)
+			return pt;
+		++i;
+	}
+
+	for (t = 0; t < PTYPE_HASH_SIZE; t++) {
+		list_for_each_entry_rcu(pt, &ptype_base[t], list) {
+			if (i == pos)
+				return pt;
+			++i;
+		}
+	}
+	return NULL;
+}
+
+static void *ptype_seq_start(struct seq_file *seq, loff_t *pos)
+	__acquires(RCU)
+{
+	rcu_read_lock();
+	return *pos ? ptype_get_idx(*pos - 1) : SEQ_START_TOKEN;
+}
+
+static void *ptype_seq_next(struct seq_file *seq, void *v, loff_t *pos)
+{
+	struct packet_type *pt;
+	struct list_head *nxt;
+	int hash;
+
+	++*pos;
+	if (v == SEQ_START_TOKEN)
+		return ptype_get_idx(0);
+
+	pt = v;
+	nxt = pt->list.next;
+	if (pt->type == htons(ETH_P_ALL)) {
+		if (nxt != &ptype_all)
+			goto found;
+		hash = 0;
+		nxt = ptype_base[0].next;
+	} else
+		hash = ntohs(pt->type) & PTYPE_HASH_MASK;
+
+	while (nxt == &ptype_base[hash]) {
+		if (++hash >= PTYPE_HASH_SIZE)
+			return NULL;
+		nxt = ptype_base[hash].next;
+	}
+found:
+	return list_entry(nxt, struct packet_type, list);
+}
+
+static void ptype_seq_stop(struct seq_file *seq, void *v)
+	__releases(RCU)
+{
+	rcu_read_unlock();
+}
+
+static int ptype_seq_show(struct seq_file *seq, void *v)
+{
+	struct packet_type *pt = v;
+
+	if (v == SEQ_START_TOKEN)
+		seq_puts(seq, "Type Device      Function\n");
+	else if (pt->dev == NULL || dev_net(pt->dev) == seq_file_net(seq)) {
+		if (pt->type == htons(ETH_P_ALL))
+			seq_puts(seq, "ALL ");
+		else
+			seq_printf(seq, "%04x", ntohs(pt->type));
+
+		seq_printf(seq, " %-8s %pF\n",
+			   pt->dev ? pt->dev->name : "", pt->func);
+	}
+
+	return 0;
+}
+
+static const struct seq_operations ptype_seq_ops = {
+	.start = ptype_seq_start,
+	.next  = ptype_seq_next,
+	.stop  = ptype_seq_stop,
+	.show  = ptype_seq_show,
+};
+
+static int ptype_seq_open(struct inode *inode, struct file *file)
+{
+	return seq_open_net(inode, file, &ptype_seq_ops,
+			sizeof(struct seq_net_private));
+}
+
+static const struct file_operations ptype_seq_fops = {
+	.owner	 = THIS_MODULE,
+	.open    = ptype_seq_open,
+	.read    = seq_read,
+	.llseek  = seq_lseek,
+	.release = seq_release_net,
+};
+
+
+static int __net_init dev_proc_net_init(struct net *net)
+{
+	int rc = -ENOMEM;
+
+	if (!proc_create("dev", S_IRUGO, net->proc_net, &dev_seq_fops))
+		goto out;
+	if (!proc_create("softnet_stat", S_IRUGO, net->proc_net,
+			 &softnet_seq_fops))
+		goto out_dev;
+	if (!proc_create("ptype", S_IRUGO, net->proc_net, &ptype_seq_fops))
+		goto out_softnet;
+
+	if (wext_proc_init(net))
+		goto out_ptype;
+	rc = 0;
+out:
+	return rc;
+out_ptype:
+	remove_proc_entry("ptype", net->proc_net);
+out_softnet:
+	remove_proc_entry("softnet_stat", net->proc_net);
+out_dev:
+	remove_proc_entry("dev", net->proc_net);
+	goto out;
+}
+
+static void __net_exit dev_proc_net_exit(struct net *net)
+{
+	wext_proc_exit(net);
+
+	remove_proc_entry("ptype", net->proc_net);
+	remove_proc_entry("softnet_stat", net->proc_net);
+	remove_proc_entry("dev", net->proc_net);
+}
+
+static struct pernet_operations __net_initdata dev_proc_ops = {
+	.init = dev_proc_net_init,
+	.exit = dev_proc_net_exit,
+};
+
+static int dev_mc_seq_show(struct seq_file *seq, void *v)
+{
+	struct netdev_hw_addr *ha;
+	struct net_device *dev = v;
+
+	if (v == SEQ_START_TOKEN)
+		return 0;
+
+	netif_addr_lock_bh(dev);
+	netdev_for_each_mc_addr(ha, dev) {
+		int i;
+
+		seq_printf(seq, "%-4d %-15s %-5d %-5d ", dev->ifindex,
+			   dev->name, ha->refcount, ha->global_use);
+
+		for (i = 0; i < dev->addr_len; i++)
+			seq_printf(seq, "%02x", ha->addr[i]);
+
+		seq_putc(seq, '\n');
+	}
+	netif_addr_unlock_bh(dev);
+	return 0;
+}
+
+static const struct seq_operations dev_mc_seq_ops = {
+	.start = dev_seq_start,
+	.next  = dev_seq_next,
+	.stop  = dev_seq_stop,
+	.show  = dev_mc_seq_show,
+};
+
+static int dev_mc_seq_open(struct inode *inode, struct file *file)
+{
+	return seq_open_net(inode, file, &dev_mc_seq_ops,
+			    sizeof(struct seq_net_private));
+}
+
+static const struct file_operations dev_mc_seq_fops = {
+	.owner	 = THIS_MODULE,
+	.open    = dev_mc_seq_open,
+	.read    = seq_read,
+	.llseek  = seq_lseek,
+	.release = seq_release_net,
+};
+
+static int __net_init dev_mc_net_init(struct net *net)
+{
+	if (!proc_create("dev_mcast", 0, net->proc_net, &dev_mc_seq_fops))
+		return -ENOMEM;
+	return 0;
+}
+
+static void __net_exit dev_mc_net_exit(struct net *net)
+{
+	remove_proc_entry("dev_mcast", net->proc_net);
+}
+
+static struct pernet_operations __net_initdata dev_mc_net_ops = {
+	.init = dev_mc_net_init,
+	.exit = dev_mc_net_exit,
+};
+
+int __init dev_proc_init(void)
+{
+	int ret = register_pernet_subsys(&dev_proc_ops);
+	if (!ret)
+		return register_pernet_subsys(&dev_mc_net_ops);
+	return ret;
+}
diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c
index bcf02f608cbf..7427ab5e27d8 100644
--- a/net/core/net-sysfs.c
+++ b/net/core/net-sysfs.c
@@ -18,11 +18,10 @@
 #include <net/sock.h>
 #include <net/net_namespace.h>
 #include <linux/rtnetlink.h>
-#include <linux/wireless.h>
 #include <linux/vmalloc.h>
 #include <linux/export.h>
 #include <linux/jiffies.h>
-#include <net/wext.h>
+#include <linux/pm_runtime.h>
 
 #include "net-sysfs.h"
 
@@ -73,11 +72,12 @@ static ssize_t netdev_store(struct device *dev, struct device_attribute *attr,
 			    const char *buf, size_t len,
 			    int (*set)(struct net_device *, unsigned long))
 {
-	struct net_device *net = to_net_dev(dev);
+	struct net_device *netdev = to_net_dev(dev);
+	struct net *net = dev_net(netdev);
 	unsigned long new;
 	int ret = -EINVAL;
 
-	if (!capable(CAP_NET_ADMIN))
+	if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
 		return -EPERM;
 
 	ret = kstrtoul(buf, 0, &new);
@@ -87,8 +87,8 @@ static ssize_t netdev_store(struct device *dev, struct device_attribute *attr,
 	if (!rtnl_trylock())
 		return restart_syscall();
 
-	if (dev_isalive(net)) {
-		if ((ret = (*set)(net, new)) == 0)
+	if (dev_isalive(netdev)) {
+		if ((ret = (*set)(netdev, new)) == 0)
 			ret = len;
 	}
 	rtnl_unlock();
@@ -127,6 +127,19 @@ static ssize_t show_broadcast(struct device *dev,
 	return -EINVAL;
 }
 
+static int change_carrier(struct net_device *net, unsigned long new_carrier)
+{
+	if (!netif_running(net))
+		return -EINVAL;
+	return dev_change_carrier(net, (bool) new_carrier);
+}
+
+static ssize_t store_carrier(struct device *dev, struct device_attribute *attr,
+			 const char *buf, size_t len)
+{
+	return netdev_store(dev, attr, buf, len, change_carrier);
+}
+
 static ssize_t show_carrier(struct device *dev,
 			    struct device_attribute *attr, char *buf)
 {
@@ -264,6 +277,9 @@ static ssize_t store_tx_queue_len(struct device *dev,
 				  struct device_attribute *attr,
 				  const char *buf, size_t len)
 {
+	if (!capable(CAP_NET_ADMIN))
+		return -EPERM;
+
 	return netdev_store(dev, attr, buf, len, change_tx_queue_len);
 }
 
@@ -271,10 +287,11 @@ static ssize_t store_ifalias(struct device *dev, struct device_attribute *attr,
 			     const char *buf, size_t len)
 {
 	struct net_device *netdev = to_net_dev(dev);
+	struct net *net = dev_net(netdev);
 	size_t count = len;
 	ssize_t ret;
 
-	if (!capable(CAP_NET_ADMIN))
+	if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
 		return -EPERM;
 
 	/* ignore trailing newline */
@@ -328,7 +345,7 @@ static struct device_attribute net_class_attributes[] = {
 	__ATTR(link_mode, S_IRUGO, show_link_mode, NULL),
 	__ATTR(address, S_IRUGO, show_address, NULL),
 	__ATTR(broadcast, S_IRUGO, show_broadcast, NULL),
-	__ATTR(carrier, S_IRUGO, show_carrier, NULL),
+	__ATTR(carrier, S_IRUGO | S_IWUSR, show_carrier, store_carrier),
 	__ATTR(speed, S_IRUGO, show_speed, NULL),
 	__ATTR(duplex, S_IRUGO, show_duplex, NULL),
 	__ATTR(dormant, S_IRUGO, show_dormant, NULL),
@@ -429,6 +446,17 @@ static struct attribute_group netstat_group = {
 	.name  = "statistics",
 	.attrs  = netstat_attrs,
 };
+
+#if IS_ENABLED(CONFIG_WIRELESS_EXT) || IS_ENABLED(CONFIG_CFG80211)
+static struct attribute *wireless_attrs[] = {
+	NULL
+};
+
+static struct attribute_group wireless_group = {
+	.name = "wireless",
+	.attrs = wireless_attrs,
+};
+#endif
 #endif /* CONFIG_SYSFS */
 
 #ifdef CONFIG_RPS
@@ -975,68 +1003,14 @@ static ssize_t show_xps_map(struct netdev_queue *queue,
 	return len;
 }
 
-static DEFINE_MUTEX(xps_map_mutex);
-#define xmap_dereference(P)		\
-	rcu_dereference_protected((P), lockdep_is_held(&xps_map_mutex))
-
-static void xps_queue_release(struct netdev_queue *queue)
-{
-	struct net_device *dev = queue->dev;
-	struct xps_dev_maps *dev_maps;
-	struct xps_map *map;
-	unsigned long index;
-	int i, pos, nonempty = 0;
-
-	index = get_netdev_queue_index(queue);
-
-	mutex_lock(&xps_map_mutex);
-	dev_maps = xmap_dereference(dev->xps_maps);
-
-	if (dev_maps) {
-		for_each_possible_cpu(i) {
-			map = xmap_dereference(dev_maps->cpu_map[i]);
-			if (!map)
-				continue;
-
-			for (pos = 0; pos < map->len; pos++)
-				if (map->queues[pos] == index)
-					break;
-
-			if (pos < map->len) {
-				if (map->len > 1)
-					map->queues[pos] =
-					    map->queues[--map->len];
-				else {
-					RCU_INIT_POINTER(dev_maps->cpu_map[i],
-					    NULL);
-					kfree_rcu(map, rcu);
-					map = NULL;
-				}
-			}
-			if (map)
-				nonempty = 1;
-		}
-
-		if (!nonempty) {
-			RCU_INIT_POINTER(dev->xps_maps, NULL);
-			kfree_rcu(dev_maps, rcu);
-		}
-	}
-	mutex_unlock(&xps_map_mutex);
-}
-
 static ssize_t store_xps_map(struct netdev_queue *queue,
 		      struct netdev_queue_attribute *attribute,
 		      const char *buf, size_t len)
 {
 	struct net_device *dev = queue->dev;
-	cpumask_var_t mask;
-	int err, i, cpu, pos, map_len, alloc_len, need_set;
 	unsigned long index;
-	struct xps_map *map, *new_map;
-	struct xps_dev_maps *dev_maps, *new_dev_maps;
-	int nonempty = 0;
-	int numa_node_id = -2;
+	cpumask_var_t mask;
+	int err;
 
 	if (!capable(CAP_NET_ADMIN))
 		return -EPERM;
@@ -1052,105 +1026,11 @@ static ssize_t store_xps_map(struct netdev_queue *queue,
 		return err;
 	}
 
-	new_dev_maps = kzalloc(max_t(unsigned int,
-	    XPS_DEV_MAPS_SIZE, L1_CACHE_BYTES), GFP_KERNEL);
-	if (!new_dev_maps) {
-		free_cpumask_var(mask);
-		return -ENOMEM;
-	}
-
-	mutex_lock(&xps_map_mutex);
-
-	dev_maps = xmap_dereference(dev->xps_maps);
-
-	for_each_possible_cpu(cpu) {
-		map = dev_maps ?
-			xmap_dereference(dev_maps->cpu_map[cpu]) : NULL;
-		new_map = map;
-		if (map) {
-			for (pos = 0; pos < map->len; pos++)
-				if (map->queues[pos] == index)
-					break;
-			map_len = map->len;
-			alloc_len = map->alloc_len;
-		} else
-			pos = map_len = alloc_len = 0;
-
-		need_set = cpumask_test_cpu(cpu, mask) && cpu_online(cpu);
-#ifdef CONFIG_NUMA
-		if (need_set) {
-			if (numa_node_id == -2)
-				numa_node_id = cpu_to_node(cpu);
-			else if (numa_node_id != cpu_to_node(cpu))
-				numa_node_id = -1;
-		}
-#endif
-		if (need_set && pos >= map_len) {
-			/* Need to add queue to this CPU's map */
-			if (map_len >= alloc_len) {
-				alloc_len = alloc_len ?
-				    2 * alloc_len : XPS_MIN_MAP_ALLOC;
-				new_map = kzalloc_node(XPS_MAP_SIZE(alloc_len),
-						       GFP_KERNEL,
-						       cpu_to_node(cpu));
-				if (!new_map)
-					goto error;
-				new_map->alloc_len = alloc_len;
-				for (i = 0; i < map_len; i++)
-					new_map->queues[i] = map->queues[i];
-				new_map->len = map_len;
-			}
-			new_map->queues[new_map->len++] = index;
-		} else if (!need_set && pos < map_len) {
-			/* Need to remove queue from this CPU's map */
-			if (map_len > 1)
-				new_map->queues[pos] =
-				    new_map->queues[--new_map->len];
-			else
-				new_map = NULL;
-		}
-		RCU_INIT_POINTER(new_dev_maps->cpu_map[cpu], new_map);
-	}
-
-	/* Cleanup old maps */
-	for_each_possible_cpu(cpu) {
-		map = dev_maps ?
-			xmap_dereference(dev_maps->cpu_map[cpu]) : NULL;
-		if (map && xmap_dereference(new_dev_maps->cpu_map[cpu]) != map)
-			kfree_rcu(map, rcu);
-		if (new_dev_maps->cpu_map[cpu])
-			nonempty = 1;
-	}
-
-	if (nonempty) {
-		rcu_assign_pointer(dev->xps_maps, new_dev_maps);
-	} else {
-		kfree(new_dev_maps);
-		RCU_INIT_POINTER(dev->xps_maps, NULL);
-	}
-
-	if (dev_maps)
-		kfree_rcu(dev_maps, rcu);
-
-	netdev_queue_numa_node_write(queue, (numa_node_id >= 0) ? numa_node_id :
-					    NUMA_NO_NODE);
-
-	mutex_unlock(&xps_map_mutex);
+	err = netif_set_xps_queue(dev, mask, index);
 
 	free_cpumask_var(mask);
-	return len;
 
-error:
-	mutex_unlock(&xps_map_mutex);
-
-	if (new_dev_maps)
-		for_each_possible_cpu(i)
-			kfree(rcu_dereference_protected(
-				new_dev_maps->cpu_map[i],
-				1));
-	kfree(new_dev_maps);
-	free_cpumask_var(mask);
-	return -ENOMEM;
+	return err ? : len;
 }
 
 static struct netdev_queue_attribute xps_cpus_attribute =
@@ -1169,10 +1049,6 @@ static void netdev_queue_release(struct kobject *kobj)
 {
 	struct netdev_queue *queue = to_netdev_queue(kobj);
 
-#ifdef CONFIG_XPS
-	xps_queue_release(queue);
-#endif
-
 	memset(kobj, 0, sizeof(*kobj));
 	dev_put(queue->dev);
 }
@@ -1320,7 +1196,6 @@ struct kobj_ns_type_operations net_ns_type_operations = {
 };
 EXPORT_SYMBOL_GPL(net_ns_type_operations);
 
-#ifdef CONFIG_HOTPLUG
 static int netdev_uevent(struct device *d, struct kobj_uevent_env *env)
 {
 	struct net_device *dev = to_net_dev(d);
@@ -1339,7 +1214,6 @@ static int netdev_uevent(struct device *d, struct kobj_uevent_env *env)
 exit:
 	return retval;
 }
-#endif
 
 /*
  *	netdev_release -- destroy and free a dead device.
@@ -1368,9 +1242,7 @@ static struct class net_class = {
 #ifdef CONFIG_SYSFS
 	.dev_attrs = net_class_attributes,
 #endif /* CONFIG_SYSFS */
-#ifdef CONFIG_HOTPLUG
 	.dev_uevent = netdev_uevent,
-#endif
 	.ns_type = &net_ns_type_operations,
 	.namespace = net_namespace,
 };
@@ -1386,6 +1258,8 @@ void netdev_unregister_kobject(struct net_device * net)
 
 	remove_queue_kobjects(net);
 
+	pm_runtime_set_memalloc_noio(dev, false);
+
 	device_del(dev);
 }
 
@@ -1409,6 +1283,15 @@ int netdev_register_kobject(struct net_device *net)
 		groups++;
 
 	*groups++ = &netstat_group;
+
+#if IS_ENABLED(CONFIG_WIRELESS_EXT) || IS_ENABLED(CONFIG_CFG80211)
+	if (net->ieee80211_ptr)
+		*groups++ = &wireless_group;
+#if IS_ENABLED(CONFIG_WIRELESS_EXT)
+	else if (net->wireless_handlers)
+		*groups++ = &wireless_group;
+#endif
+#endif
 #endif /* CONFIG_SYSFS */
 
 	error = device_add(dev);
@@ -1421,6 +1304,8 @@ int netdev_register_kobject(struct net_device *net)
 		return error;
 	}
 
+	pm_runtime_set_memalloc_noio(dev, true);
+
 	return error;
 }
 
diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c
index 42f1e1c7514f..80e271d9e64b 100644
--- a/net/core/net_namespace.c
+++ b/net/core/net_namespace.c
@@ -13,6 +13,7 @@
 #include <linux/proc_fs.h>
 #include <linux/file.h>
 #include <linux/export.h>
+#include <linux/user_namespace.h>
 #include <net/net_namespace.h>
 #include <net/netns/generic.h>
 
@@ -145,7 +146,7 @@ static void ops_free_list(const struct pernet_operations *ops,
 /*
  * setup_net runs the initializers for the network namespace object.
  */
-static __net_init int setup_net(struct net *net)
+static __net_init int setup_net(struct net *net, struct user_namespace *user_ns)
 {
 	/* Must be called with net_mutex held */
 	const struct pernet_operations *ops, *saved_ops;
@@ -155,6 +156,7 @@ static __net_init int setup_net(struct net *net)
 	atomic_set(&net->count, 1);
 	atomic_set(&net->passive, 1);
 	net->dev_base_seq = 1;
+	net->user_ns = user_ns;
 
 #ifdef NETNS_REFCNT_DEBUG
 	atomic_set(&net->use_count, 0);
@@ -232,7 +234,8 @@ void net_drop_ns(void *p)
 		net_free(ns);
 }
 
-struct net *copy_net_ns(unsigned long flags, struct net *old_net)
+struct net *copy_net_ns(unsigned long flags,
+			struct user_namespace *user_ns, struct net *old_net)
 {
 	struct net *net;
 	int rv;
@@ -243,8 +246,11 @@ struct net *copy_net_ns(unsigned long flags, struct net *old_net)
 	net = net_alloc();
 	if (!net)
 		return ERR_PTR(-ENOMEM);
+
+	get_user_ns(user_ns);
+
 	mutex_lock(&net_mutex);
-	rv = setup_net(net);
+	rv = setup_net(net, user_ns);
 	if (rv == 0) {
 		rtnl_lock();
 		list_add_tail_rcu(&net->list, &net_namespace_list);
@@ -252,6 +258,7 @@ struct net *copy_net_ns(unsigned long flags, struct net *old_net)
 	}
 	mutex_unlock(&net_mutex);
 	if (rv < 0) {
+		put_user_ns(user_ns);
 		net_drop_ns(net);
 		return ERR_PTR(rv);
 	}
@@ -308,6 +315,7 @@ static void cleanup_net(struct work_struct *work)
 	/* Finally it is safe to free my network namespace structure */
 	list_for_each_entry_safe(net, tmp, &net_exit_list, exit_list) {
 		list_del_init(&net->exit_list);
+		put_user_ns(net->user_ns);
 		net_drop_ns(net);
 	}
 }
@@ -336,7 +344,7 @@ struct net *get_net_ns_by_fd(int fd)
 	if (IS_ERR(file))
 		return ERR_CAST(file);
 
-	ei = PROC_I(file->f_dentry->d_inode);
+	ei = PROC_I(file_inode(file));
 	if (ei->ns_ops == &netns_operations)
 		net = get_net(ei->ns);
 	else
@@ -347,13 +355,6 @@ struct net *get_net_ns_by_fd(int fd)
 }
 
 #else
-struct net *copy_net_ns(unsigned long flags, struct net *old_net)
-{
-	if (flags & CLONE_NEWNET)
-		return ERR_PTR(-EINVAL);
-	return old_net;
-}
-
 struct net *get_net_ns_by_fd(int fd)
 {
 	return ERR_PTR(-EINVAL);
@@ -380,6 +381,21 @@ struct net *get_net_ns_by_pid(pid_t pid)
 }
 EXPORT_SYMBOL_GPL(get_net_ns_by_pid);
 
+static __net_init int net_ns_net_init(struct net *net)
+{
+	return proc_alloc_inum(&net->proc_inum);
+}
+
+static __net_exit void net_ns_net_exit(struct net *net)
+{
+	proc_free_inum(net->proc_inum);
+}
+
+static struct pernet_operations __net_initdata net_ns_ops = {
+	.init = net_ns_net_init,
+	.exit = net_ns_net_exit,
+};
+
 static int __init net_ns_init(void)
 {
 	struct net_generic *ng;
@@ -402,7 +418,7 @@ static int __init net_ns_init(void)
 	rcu_assign_pointer(init_net.gen, ng);
 
 	mutex_lock(&net_mutex);
-	if (setup_net(&init_net))
+	if (setup_net(&init_net, &init_user_ns))
 		panic("Could not setup the initial network namespace");
 
 	rtnl_lock();
@@ -411,6 +427,8 @@ static int __init net_ns_init(void)
 
 	mutex_unlock(&net_mutex);
 
+	register_pernet_subsys(&net_ns_ops);
+
 	return 0;
 }
 
@@ -629,16 +647,29 @@ static void netns_put(void *ns)
 
 static int netns_install(struct nsproxy *nsproxy, void *ns)
 {
+	struct net *net = ns;
+
+	if (!ns_capable(net->user_ns, CAP_SYS_ADMIN) ||
+	    !nsown_capable(CAP_SYS_ADMIN))
+		return -EPERM;
+
 	put_net(nsproxy->net_ns);
-	nsproxy->net_ns = get_net(ns);
+	nsproxy->net_ns = get_net(net);
 	return 0;
 }
 
+static unsigned int netns_inum(void *ns)
+{
+	struct net *net = ns;
+	return net->proc_inum;
+}
+
 const struct proc_ns_operations netns_operations = {
 	.name		= "net",
 	.type		= CLONE_NEWNET,
 	.get		= netns_get,
 	.put		= netns_put,
 	.install	= netns_install,
+	.inum		= netns_inum,
 };
 #endif
diff --git a/net/core/netpoll.c b/net/core/netpoll.c
index 77a0388fc3be..fa32899006a2 100644
--- a/net/core/netpoll.c
+++ b/net/core/netpoll.c
@@ -29,6 +29,9 @@
 #include <linux/if_vlan.h>
 #include <net/tcp.h>
 #include <net/udp.h>
+#include <net/addrconf.h>
+#include <net/ndisc.h>
+#include <net/ip6_checksum.h>
 #include <asm/unaligned.h>
 #include <trace/events/napi.h>
 
@@ -44,6 +47,8 @@ static struct sk_buff_head skb_pool;
 
 static atomic_t trapped;
 
+static struct srcu_struct netpoll_srcu;
+
 #define USEC_PER_POLL	50
 #define NETPOLL_RX_ENABLED  1
 #define NETPOLL_RX_DROP     2
@@ -55,7 +60,8 @@ static atomic_t trapped;
 	 MAX_UDP_CHUNK)
 
 static void zap_completion_queue(void);
-static void netpoll_arp_reply(struct sk_buff *skb, struct netpoll_info *npinfo);
+static void netpoll_neigh_reply(struct sk_buff *skb, struct netpoll_info *npinfo);
+static void netpoll_async_cleanup(struct work_struct *work);
 
 static unsigned int carrier_timeout = 4;
 module_param(carrier_timeout, uint, 0644);
@@ -181,13 +187,13 @@ static void poll_napi(struct net_device *dev)
 	}
 }
 
-static void service_arp_queue(struct netpoll_info *npi)
+static void service_neigh_queue(struct netpoll_info *npi)
 {
 	if (npi) {
 		struct sk_buff *skb;
 
-		while ((skb = skb_dequeue(&npi->arp_tx)))
-			netpoll_arp_reply(skb, npi);
+		while ((skb = skb_dequeue(&npi->neigh_tx)))
+			netpoll_neigh_reply(skb, npi);
 	}
 }
 
@@ -196,35 +202,76 @@ static void netpoll_poll_dev(struct net_device *dev)
 	const struct net_device_ops *ops;
 	struct netpoll_info *ni = rcu_dereference_bh(dev->npinfo);
 
-	if (!dev || !netif_running(dev))
+	/* Don't do any rx activity if the dev_lock mutex is held
+	 * the dev_open/close paths use this to block netpoll activity
+	 * while changing device state
+	 */
+	if (!mutex_trylock(&ni->dev_lock))
 		return;
 
+	if (!netif_running(dev)) {
+		mutex_unlock(&ni->dev_lock);
+		return;
+	}
+
 	ops = dev->netdev_ops;
-	if (!ops->ndo_poll_controller)
+	if (!ops->ndo_poll_controller) {
+		mutex_unlock(&ni->dev_lock);
 		return;
+	}
 
 	/* Process pending work on NIC */
 	ops->ndo_poll_controller(dev);
 
 	poll_napi(dev);
 
+	mutex_unlock(&ni->dev_lock);
+
 	if (dev->flags & IFF_SLAVE) {
 		if (ni) {
-			struct net_device *bond_dev = dev->master;
+			struct net_device *bond_dev;
 			struct sk_buff *skb;
-			struct netpoll_info *bond_ni = rcu_dereference_bh(bond_dev->npinfo);
-			while ((skb = skb_dequeue(&ni->arp_tx))) {
+			struct netpoll_info *bond_ni;
+
+			bond_dev = netdev_master_upper_dev_get_rcu(dev);
+			bond_ni = rcu_dereference_bh(bond_dev->npinfo);
+			while ((skb = skb_dequeue(&ni->neigh_tx))) {
 				skb->dev = bond_dev;
-				skb_queue_tail(&bond_ni->arp_tx, skb);
+				skb_queue_tail(&bond_ni->neigh_tx, skb);
 			}
 		}
 	}
 
-	service_arp_queue(ni);
+	service_neigh_queue(ni);
 
 	zap_completion_queue();
 }
 
+int netpoll_rx_disable(struct net_device *dev)
+{
+	struct netpoll_info *ni;
+	int idx;
+	might_sleep();
+	idx = srcu_read_lock(&netpoll_srcu);
+	ni = srcu_dereference(dev->npinfo, &netpoll_srcu);
+	if (ni)
+		mutex_lock(&ni->dev_lock);
+	srcu_read_unlock(&netpoll_srcu, idx);
+	return 0;
+}
+EXPORT_SYMBOL(netpoll_rx_disable);
+
+void netpoll_rx_enable(struct net_device *dev)
+{
+	struct netpoll_info *ni;
+	rcu_read_lock();
+	ni = rcu_dereference(dev->npinfo);
+	if (ni)
+		mutex_unlock(&ni->dev_lock);
+	rcu_read_unlock();
+}
+EXPORT_SYMBOL(netpoll_rx_enable);
+
 static void refill_skbs(void)
 {
 	struct sk_buff *skb;
@@ -381,9 +428,14 @@ void netpoll_send_udp(struct netpoll *np, const char *msg, int len)
 	struct iphdr *iph;
 	struct ethhdr *eth;
 	static atomic_t ip_ident;
+	struct ipv6hdr *ip6h;
 
 	udp_len = len + sizeof(*udph);
-	ip_len = udp_len + sizeof(*iph);
+	if (np->ipv6)
+		ip_len = udp_len + sizeof(*ip6h);
+	else
+		ip_len = udp_len + sizeof(*iph);
+
 	total_len = ip_len + LL_RESERVED_SPACE(np->dev);
 
 	skb = find_skb(np, total_len + np->dev->needed_tailroom,
@@ -400,34 +452,66 @@ void netpoll_send_udp(struct netpoll *np, const char *msg, int len)
 	udph->source = htons(np->local_port);
 	udph->dest = htons(np->remote_port);
 	udph->len = htons(udp_len);
-	udph->check = 0;
-	udph->check = csum_tcpudp_magic(np->local_ip,
-					np->remote_ip,
-					udp_len, IPPROTO_UDP,
-					csum_partial(udph, udp_len, 0));
-	if (udph->check == 0)
-		udph->check = CSUM_MANGLED_0;
-
-	skb_push(skb, sizeof(*iph));
-	skb_reset_network_header(skb);
-	iph = ip_hdr(skb);
-
-	/* iph->version = 4; iph->ihl = 5; */
-	put_unaligned(0x45, (unsigned char *)iph);
-	iph->tos      = 0;
-	put_unaligned(htons(ip_len), &(iph->tot_len));
-	iph->id       = htons(atomic_inc_return(&ip_ident));
-	iph->frag_off = 0;
-	iph->ttl      = 64;
-	iph->protocol = IPPROTO_UDP;
-	iph->check    = 0;
-	put_unaligned(np->local_ip, &(iph->saddr));
-	put_unaligned(np->remote_ip, &(iph->daddr));
-	iph->check    = ip_fast_csum((unsigned char *)iph, iph->ihl);
-
-	eth = (struct ethhdr *) skb_push(skb, ETH_HLEN);
-	skb_reset_mac_header(skb);
-	skb->protocol = eth->h_proto = htons(ETH_P_IP);
+
+	if (np->ipv6) {
+		udph->check = 0;
+		udph->check = csum_ipv6_magic(&np->local_ip.in6,
+					      &np->remote_ip.in6,
+					      udp_len, IPPROTO_UDP,
+					      csum_partial(udph, udp_len, 0));
+		if (udph->check == 0)
+			udph->check = CSUM_MANGLED_0;
+
+		skb_push(skb, sizeof(*ip6h));
+		skb_reset_network_header(skb);
+		ip6h = ipv6_hdr(skb);
+
+		/* ip6h->version = 6; ip6h->priority = 0; */
+		put_unaligned(0x60, (unsigned char *)ip6h);
+		ip6h->flow_lbl[0] = 0;
+		ip6h->flow_lbl[1] = 0;
+		ip6h->flow_lbl[2] = 0;
+
+		ip6h->payload_len = htons(sizeof(struct udphdr) + len);
+		ip6h->nexthdr = IPPROTO_UDP;
+		ip6h->hop_limit = 32;
+		ip6h->saddr = np->local_ip.in6;
+		ip6h->daddr = np->remote_ip.in6;
+
+		eth = (struct ethhdr *) skb_push(skb, ETH_HLEN);
+		skb_reset_mac_header(skb);
+		skb->protocol = eth->h_proto = htons(ETH_P_IPV6);
+	} else {
+		udph->check = 0;
+		udph->check = csum_tcpudp_magic(np->local_ip.ip,
+						np->remote_ip.ip,
+						udp_len, IPPROTO_UDP,
+						csum_partial(udph, udp_len, 0));
+		if (udph->check == 0)
+			udph->check = CSUM_MANGLED_0;
+
+		skb_push(skb, sizeof(*iph));
+		skb_reset_network_header(skb);
+		iph = ip_hdr(skb);
+
+		/* iph->version = 4; iph->ihl = 5; */
+		put_unaligned(0x45, (unsigned char *)iph);
+		iph->tos      = 0;
+		put_unaligned(htons(ip_len), &(iph->tot_len));
+		iph->id       = htons(atomic_inc_return(&ip_ident));
+		iph->frag_off = 0;
+		iph->ttl      = 64;
+		iph->protocol = IPPROTO_UDP;
+		iph->check    = 0;
+		put_unaligned(np->local_ip.ip, &(iph->saddr));
+		put_unaligned(np->remote_ip.ip, &(iph->daddr));
+		iph->check    = ip_fast_csum((unsigned char *)iph, iph->ihl);
+
+		eth = (struct ethhdr *) skb_push(skb, ETH_HLEN);
+		skb_reset_mac_header(skb);
+		skb->protocol = eth->h_proto = htons(ETH_P_IP);
+	}
+
 	memcpy(eth->h_source, np->dev->dev_addr, ETH_ALEN);
 	memcpy(eth->h_dest, np->remote_mac, ETH_ALEN);
 
@@ -437,18 +521,16 @@ void netpoll_send_udp(struct netpoll *np, const char *msg, int len)
 }
 EXPORT_SYMBOL(netpoll_send_udp);
 
-static void netpoll_arp_reply(struct sk_buff *skb, struct netpoll_info *npinfo)
+static void netpoll_neigh_reply(struct sk_buff *skb, struct netpoll_info *npinfo)
 {
-	struct arphdr *arp;
-	unsigned char *arp_ptr;
-	int size, type = ARPOP_REPLY, ptype = ETH_P_ARP;
+	int size, type = ARPOP_REPLY;
 	__be32 sip, tip;
 	unsigned char *sha;
 	struct sk_buff *send_skb;
 	struct netpoll *np, *tmp;
 	unsigned long flags;
 	int hlen, tlen;
-	int hits = 0;
+	int hits = 0, proto;
 
 	if (list_empty(&npinfo->rx_np))
 		return;
@@ -466,94 +548,214 @@ static void netpoll_arp_reply(struct sk_buff *skb, struct netpoll_info *npinfo)
 	if (!hits)
 		return;
 
-	/* No arp on this interface */
-	if (skb->dev->flags & IFF_NOARP)
-		return;
-
-	if (!pskb_may_pull(skb, arp_hdr_len(skb->dev)))
-		return;
+	proto = ntohs(eth_hdr(skb)->h_proto);
+	if (proto == ETH_P_IP) {
+		struct arphdr *arp;
+		unsigned char *arp_ptr;
+		/* No arp on this interface */
+		if (skb->dev->flags & IFF_NOARP)
+			return;
 
-	skb_reset_network_header(skb);
-	skb_reset_transport_header(skb);
-	arp = arp_hdr(skb);
+		if (!pskb_may_pull(skb, arp_hdr_len(skb->dev)))
+			return;
 
-	if ((arp->ar_hrd != htons(ARPHRD_ETHER) &&
-	     arp->ar_hrd != htons(ARPHRD_IEEE802)) ||
-	    arp->ar_pro != htons(ETH_P_IP) ||
-	    arp->ar_op != htons(ARPOP_REQUEST))
-		return;
+		skb_reset_network_header(skb);
+		skb_reset_transport_header(skb);
+		arp = arp_hdr(skb);
 
-	arp_ptr = (unsigned char *)(arp+1);
-	/* save the location of the src hw addr */
-	sha = arp_ptr;
-	arp_ptr += skb->dev->addr_len;
-	memcpy(&sip, arp_ptr, 4);
-	arp_ptr += 4;
-	/* If we actually cared about dst hw addr,
-	   it would get copied here */
-	arp_ptr += skb->dev->addr_len;
-	memcpy(&tip, arp_ptr, 4);
-
-	/* Should we ignore arp? */
-	if (ipv4_is_loopback(tip) || ipv4_is_multicast(tip))
-		return;
+		if ((arp->ar_hrd != htons(ARPHRD_ETHER) &&
+		     arp->ar_hrd != htons(ARPHRD_IEEE802)) ||
+		    arp->ar_pro != htons(ETH_P_IP) ||
+		    arp->ar_op != htons(ARPOP_REQUEST))
+			return;
 
-	size = arp_hdr_len(skb->dev);
+		arp_ptr = (unsigned char *)(arp+1);
+		/* save the location of the src hw addr */
+		sha = arp_ptr;
+		arp_ptr += skb->dev->addr_len;
+		memcpy(&sip, arp_ptr, 4);
+		arp_ptr += 4;
+		/* If we actually cared about dst hw addr,
+		   it would get copied here */
+		arp_ptr += skb->dev->addr_len;
+		memcpy(&tip, arp_ptr, 4);
 
-	spin_lock_irqsave(&npinfo->rx_lock, flags);
-	list_for_each_entry_safe(np, tmp, &npinfo->rx_np, rx) {
-		if (tip != np->local_ip)
-			continue;
+		/* Should we ignore arp? */
+		if (ipv4_is_loopback(tip) || ipv4_is_multicast(tip))
+			return;
 
-		hlen = LL_RESERVED_SPACE(np->dev);
-		tlen = np->dev->needed_tailroom;
-		send_skb = find_skb(np, size + hlen + tlen, hlen);
-		if (!send_skb)
-			continue;
+		size = arp_hdr_len(skb->dev);
 
-		skb_reset_network_header(send_skb);
-		arp = (struct arphdr *) skb_put(send_skb, size);
-		send_skb->dev = skb->dev;
-		send_skb->protocol = htons(ETH_P_ARP);
+		spin_lock_irqsave(&npinfo->rx_lock, flags);
+		list_for_each_entry_safe(np, tmp, &npinfo->rx_np, rx) {
+			if (tip != np->local_ip.ip)
+				continue;
+
+			hlen = LL_RESERVED_SPACE(np->dev);
+			tlen = np->dev->needed_tailroom;
+			send_skb = find_skb(np, size + hlen + tlen, hlen);
+			if (!send_skb)
+				continue;
+
+			skb_reset_network_header(send_skb);
+			arp = (struct arphdr *) skb_put(send_skb, size);
+			send_skb->dev = skb->dev;
+			send_skb->protocol = htons(ETH_P_ARP);
+
+			/* Fill the device header for the ARP frame */
+			if (dev_hard_header(send_skb, skb->dev, ETH_P_ARP,
+					    sha, np->dev->dev_addr,
+					    send_skb->len) < 0) {
+				kfree_skb(send_skb);
+				continue;
+			}
 
-		/* Fill the device header for the ARP frame */
-		if (dev_hard_header(send_skb, skb->dev, ptype,
-				    sha, np->dev->dev_addr,
-				    send_skb->len) < 0) {
-			kfree_skb(send_skb);
-			continue;
+			/*
+			 * Fill out the arp protocol part.
+			 *
+			 * we only support ethernet device type,
+			 * which (according to RFC 1390) should
+			 * always equal 1 (Ethernet).
+			 */
+
+			arp->ar_hrd = htons(np->dev->type);
+			arp->ar_pro = htons(ETH_P_IP);
+			arp->ar_hln = np->dev->addr_len;
+			arp->ar_pln = 4;
+			arp->ar_op = htons(type);
+
+			arp_ptr = (unsigned char *)(arp + 1);
+			memcpy(arp_ptr, np->dev->dev_addr, np->dev->addr_len);
+			arp_ptr += np->dev->addr_len;
+			memcpy(arp_ptr, &tip, 4);
+			arp_ptr += 4;
+			memcpy(arp_ptr, sha, np->dev->addr_len);
+			arp_ptr += np->dev->addr_len;
+			memcpy(arp_ptr, &sip, 4);
+
+			netpoll_send_skb(np, send_skb);
+
+			/* If there are several rx_hooks for the same address,
+			   we're fine by sending a single reply */
+			break;
 		}
+		spin_unlock_irqrestore(&npinfo->rx_lock, flags);
+	} else if( proto == ETH_P_IPV6) {
+#if IS_ENABLED(CONFIG_IPV6)
+		struct nd_msg *msg;
+		u8 *lladdr = NULL;
+		struct ipv6hdr *hdr;
+		struct icmp6hdr *icmp6h;
+		const struct in6_addr *saddr;
+		const struct in6_addr *daddr;
+		struct inet6_dev *in6_dev = NULL;
+		struct in6_addr *target;
+
+		in6_dev = in6_dev_get(skb->dev);
+		if (!in6_dev || !in6_dev->cnf.accept_ra)
+			return;
 
-		/*
-		 * Fill out the arp protocol part.
-		 *
-		 * we only support ethernet device type,
-		 * which (according to RFC 1390) should
-		 * always equal 1 (Ethernet).
-		 */
+		if (!pskb_may_pull(skb, skb->len))
+			return;
 
-		arp->ar_hrd = htons(np->dev->type);
-		arp->ar_pro = htons(ETH_P_IP);
-		arp->ar_hln = np->dev->addr_len;
-		arp->ar_pln = 4;
-		arp->ar_op = htons(type);
+		msg = (struct nd_msg *)skb_transport_header(skb);
 
-		arp_ptr = (unsigned char *)(arp + 1);
-		memcpy(arp_ptr, np->dev->dev_addr, np->dev->addr_len);
-		arp_ptr += np->dev->addr_len;
-		memcpy(arp_ptr, &tip, 4);
-		arp_ptr += 4;
-		memcpy(arp_ptr, sha, np->dev->addr_len);
-		arp_ptr += np->dev->addr_len;
-		memcpy(arp_ptr, &sip, 4);
+		__skb_push(skb, skb->data - skb_transport_header(skb));
+
+		if (ipv6_hdr(skb)->hop_limit != 255)
+			return;
+		if (msg->icmph.icmp6_code != 0)
+			return;
+		if (msg->icmph.icmp6_type != NDISC_NEIGHBOUR_SOLICITATION)
+			return;
+
+		saddr = &ipv6_hdr(skb)->saddr;
+		daddr = &ipv6_hdr(skb)->daddr;
+
+		size = sizeof(struct icmp6hdr) + sizeof(struct in6_addr);
 
-		netpoll_send_skb(np, send_skb);
+		spin_lock_irqsave(&npinfo->rx_lock, flags);
+		list_for_each_entry_safe(np, tmp, &npinfo->rx_np, rx) {
+			if (!ipv6_addr_equal(daddr, &np->local_ip.in6))
+				continue;
+
+			hlen = LL_RESERVED_SPACE(np->dev);
+			tlen = np->dev->needed_tailroom;
+			send_skb = find_skb(np, size + hlen + tlen, hlen);
+			if (!send_skb)
+				continue;
+
+			send_skb->protocol = htons(ETH_P_IPV6);
+			send_skb->dev = skb->dev;
+
+			skb_reset_network_header(send_skb);
+			skb_put(send_skb, sizeof(struct ipv6hdr));
+			hdr = ipv6_hdr(send_skb);
+
+			*(__be32*)hdr = htonl(0x60000000);
+
+			hdr->payload_len = htons(size);
+			hdr->nexthdr = IPPROTO_ICMPV6;
+			hdr->hop_limit = 255;
+			hdr->saddr = *saddr;
+			hdr->daddr = *daddr;
+
+			send_skb->transport_header = send_skb->tail;
+			skb_put(send_skb, size);
+
+			icmp6h = (struct icmp6hdr *)skb_transport_header(skb);
+			icmp6h->icmp6_type = NDISC_NEIGHBOUR_ADVERTISEMENT;
+			icmp6h->icmp6_router = 0;
+			icmp6h->icmp6_solicited = 1;
+			target = (struct in6_addr *)(skb_transport_header(send_skb) + sizeof(struct icmp6hdr));
+			*target = msg->target;
+			icmp6h->icmp6_cksum = csum_ipv6_magic(saddr, daddr, size,
+							      IPPROTO_ICMPV6,
+							      csum_partial(icmp6h,
+									   size, 0));
+
+			if (dev_hard_header(send_skb, skb->dev, ETH_P_IPV6,
+					    lladdr, np->dev->dev_addr,
+					    send_skb->len) < 0) {
+				kfree_skb(send_skb);
+				continue;
+			}
+
+			netpoll_send_skb(np, send_skb);
 
-		/* If there are several rx_hooks for the same address,
-		   we're fine by sending a single reply */
-		break;
+			/* If there are several rx_hooks for the same address,
+			   we're fine by sending a single reply */
+			break;
+		}
+		spin_unlock_irqrestore(&npinfo->rx_lock, flags);
+#endif
 	}
-	spin_unlock_irqrestore(&npinfo->rx_lock, flags);
+}
+
+static bool pkt_is_ns(struct sk_buff *skb)
+{
+	struct nd_msg *msg;
+	struct ipv6hdr *hdr;
+
+	if (skb->protocol != htons(ETH_P_ARP))
+		return false;
+	if (!pskb_may_pull(skb, sizeof(struct ipv6hdr) + sizeof(struct nd_msg)))
+		return false;
+
+	msg = (struct nd_msg *)skb_transport_header(skb);
+	__skb_push(skb, skb->data - skb_transport_header(skb));
+	hdr = ipv6_hdr(skb);
+
+	if (hdr->nexthdr != IPPROTO_ICMPV6)
+		return false;
+	if (hdr->hop_limit != 255)
+		return false;
+	if (msg->icmph.icmp6_code != 0)
+		return false;
+	if (msg->icmph.icmp6_type != NDISC_NEIGHBOUR_SOLICITATION)
+		return false;
+
+	return true;
 }
 
 int __netpoll_rx(struct sk_buff *skb, struct netpoll_info *npinfo)
@@ -571,9 +773,11 @@ int __netpoll_rx(struct sk_buff *skb, struct netpoll_info *npinfo)
 		goto out;
 
 	/* check if netpoll clients need ARP */
-	if (skb->protocol == htons(ETH_P_ARP) &&
-	    atomic_read(&trapped)) {
-		skb_queue_tail(&npinfo->arp_tx, skb);
+	if (skb->protocol == htons(ETH_P_ARP) && atomic_read(&trapped)) {
+		skb_queue_tail(&npinfo->neigh_tx, skb);
+		return 1;
+	} else if (pkt_is_ns(skb) && atomic_read(&trapped)) {
+		skb_queue_tail(&npinfo->neigh_tx, skb);
 		return 1;
 	}
 
@@ -584,60 +788,100 @@ int __netpoll_rx(struct sk_buff *skb, struct netpoll_info *npinfo)
 	}
 
 	proto = ntohs(eth_hdr(skb)->h_proto);
-	if (proto != ETH_P_IP)
+	if (proto != ETH_P_IP && proto != ETH_P_IPV6)
 		goto out;
 	if (skb->pkt_type == PACKET_OTHERHOST)
 		goto out;
 	if (skb_shared(skb))
 		goto out;
 
-	if (!pskb_may_pull(skb, sizeof(struct iphdr)))
-		goto out;
-	iph = (struct iphdr *)skb->data;
-	if (iph->ihl < 5 || iph->version != 4)
-		goto out;
-	if (!pskb_may_pull(skb, iph->ihl*4))
-		goto out;
-	iph = (struct iphdr *)skb->data;
-	if (ip_fast_csum((u8 *)iph, iph->ihl) != 0)
-		goto out;
-
-	len = ntohs(iph->tot_len);
-	if (skb->len < len || len < iph->ihl*4)
-		goto out;
+	if (proto == ETH_P_IP) {
+		if (!pskb_may_pull(skb, sizeof(struct iphdr)))
+			goto out;
+		iph = (struct iphdr *)skb->data;
+		if (iph->ihl < 5 || iph->version != 4)
+			goto out;
+		if (!pskb_may_pull(skb, iph->ihl*4))
+			goto out;
+		iph = (struct iphdr *)skb->data;
+		if (ip_fast_csum((u8 *)iph, iph->ihl) != 0)
+			goto out;
 
-	/*
-	 * Our transport medium may have padded the buffer out.
-	 * Now We trim to the true length of the frame.
-	 */
-	if (pskb_trim_rcsum(skb, len))
-		goto out;
+		len = ntohs(iph->tot_len);
+		if (skb->len < len || len < iph->ihl*4)
+			goto out;
 
-	iph = (struct iphdr *)skb->data;
-	if (iph->protocol != IPPROTO_UDP)
-		goto out;
+		/*
+		 * Our transport medium may have padded the buffer out.
+		 * Now We trim to the true length of the frame.
+		 */
+		if (pskb_trim_rcsum(skb, len))
+			goto out;
 
-	len -= iph->ihl*4;
-	uh = (struct udphdr *)(((char *)iph) + iph->ihl*4);
-	ulen = ntohs(uh->len);
+		iph = (struct iphdr *)skb->data;
+		if (iph->protocol != IPPROTO_UDP)
+			goto out;
 
-	if (ulen != len)
-		goto out;
-	if (checksum_udp(skb, uh, ulen, iph->saddr, iph->daddr))
-		goto out;
+		len -= iph->ihl*4;
+		uh = (struct udphdr *)(((char *)iph) + iph->ihl*4);
+		ulen = ntohs(uh->len);
 
-	list_for_each_entry_safe(np, tmp, &npinfo->rx_np, rx) {
-		if (np->local_ip && np->local_ip != iph->daddr)
-			continue;
-		if (np->remote_ip && np->remote_ip != iph->saddr)
-			continue;
-		if (np->local_port && np->local_port != ntohs(uh->dest))
-			continue;
+		if (ulen != len)
+			goto out;
+		if (checksum_udp(skb, uh, ulen, iph->saddr, iph->daddr))
+			goto out;
+		list_for_each_entry_safe(np, tmp, &npinfo->rx_np, rx) {
+			if (np->local_ip.ip && np->local_ip.ip != iph->daddr)
+				continue;
+			if (np->remote_ip.ip && np->remote_ip.ip != iph->saddr)
+				continue;
+			if (np->local_port && np->local_port != ntohs(uh->dest))
+				continue;
+
+			np->rx_hook(np, ntohs(uh->source),
+				       (char *)(uh+1),
+				       ulen - sizeof(struct udphdr));
+			hits++;
+		}
+	} else {
+#if IS_ENABLED(CONFIG_IPV6)
+		const struct ipv6hdr *ip6h;
 
-		np->rx_hook(np, ntohs(uh->source),
-			       (char *)(uh+1),
-			       ulen - sizeof(struct udphdr));
-		hits++;
+		if (!pskb_may_pull(skb, sizeof(struct ipv6hdr)))
+			goto out;
+		ip6h = (struct ipv6hdr *)skb->data;
+		if (ip6h->version != 6)
+			goto out;
+		len = ntohs(ip6h->payload_len);
+		if (!len)
+			goto out;
+		if (len + sizeof(struct ipv6hdr) > skb->len)
+			goto out;
+		if (pskb_trim_rcsum(skb, len + sizeof(struct ipv6hdr)))
+			goto out;
+		ip6h = ipv6_hdr(skb);
+		if (!pskb_may_pull(skb, sizeof(struct udphdr)))
+			goto out;
+		uh = udp_hdr(skb);
+		ulen = ntohs(uh->len);
+		if (ulen != skb->len)
+			goto out;
+		if (udp6_csum_init(skb, uh, IPPROTO_UDP))
+			goto out;
+		list_for_each_entry_safe(np, tmp, &npinfo->rx_np, rx) {
+			if (!ipv6_addr_equal(&np->local_ip.in6, &ip6h->daddr))
+				continue;
+			if (!ipv6_addr_equal(&np->remote_ip.in6, &ip6h->saddr))
+				continue;
+			if (np->local_port && np->local_port != ntohs(uh->dest))
+				continue;
+
+			np->rx_hook(np, ntohs(uh->source),
+				       (char *)(uh+1),
+				       ulen - sizeof(struct udphdr));
+			hits++;
+		}
+#endif
 	}
 
 	if (!hits)
@@ -658,23 +902,51 @@ out:
 void netpoll_print_options(struct netpoll *np)
 {
 	np_info(np, "local port %d\n", np->local_port);
-	np_info(np, "local IP %pI4\n", &np->local_ip);
+	if (np->ipv6)
+		np_info(np, "local IPv6 address %pI6c\n", &np->local_ip.in6);
+	else
+		np_info(np, "local IPv4 address %pI4\n", &np->local_ip.ip);
 	np_info(np, "interface '%s'\n", np->dev_name);
 	np_info(np, "remote port %d\n", np->remote_port);
-	np_info(np, "remote IP %pI4\n", &np->remote_ip);
+	if (np->ipv6)
+		np_info(np, "remote IPv6 address %pI6c\n", &np->remote_ip.in6);
+	else
+		np_info(np, "remote IPv4 address %pI4\n", &np->remote_ip.ip);
 	np_info(np, "remote ethernet address %pM\n", np->remote_mac);
 }
 EXPORT_SYMBOL(netpoll_print_options);
 
+static int netpoll_parse_ip_addr(const char *str, union inet_addr *addr)
+{
+	const char *end;
+
+	if (!strchr(str, ':') &&
+	    in4_pton(str, -1, (void *)addr, -1, &end) > 0) {
+		if (!*end)
+			return 0;
+	}
+	if (in6_pton(str, -1, addr->in6.s6_addr, -1, &end) > 0) {
+#if IS_ENABLED(CONFIG_IPV6)
+		if (!*end)
+			return 1;
+#else
+		return -1;
+#endif
+	}
+	return -1;
+}
+
 int netpoll_parse_options(struct netpoll *np, char *opt)
 {
 	char *cur=opt, *delim;
+	int ipv6;
 
 	if (*cur != '@') {
 		if ((delim = strchr(cur, '@')) == NULL)
 			goto parse_failed;
 		*delim = 0;
-		np->local_port = simple_strtol(cur, NULL, 10);
+		if (kstrtou16(cur, 10, &np->local_port))
+			goto parse_failed;
 		cur = delim;
 	}
 	cur++;
@@ -683,7 +955,11 @@ int netpoll_parse_options(struct netpoll *np, char *opt)
 		if ((delim = strchr(cur, '/')) == NULL)
 			goto parse_failed;
 		*delim = 0;
-		np->local_ip = in_aton(cur);
+		ipv6 = netpoll_parse_ip_addr(cur, &np->local_ip);
+		if (ipv6 < 0)
+			goto parse_failed;
+		else
+			np->ipv6 = (bool)ipv6;
 		cur = delim;
 	}
 	cur++;
@@ -705,7 +981,8 @@ int netpoll_parse_options(struct netpoll *np, char *opt)
 		*delim = 0;
 		if (*cur == ' ' || *cur == '\t')
 			np_info(np, "warning: whitespace is not allowed\n");
-		np->remote_port = simple_strtol(cur, NULL, 10);
+		if (kstrtou16(cur, 10, &np->remote_port))
+			goto parse_failed;
 		cur = delim;
 	}
 	cur++;
@@ -714,7 +991,13 @@ int netpoll_parse_options(struct netpoll *np, char *opt)
 	if ((delim = strchr(cur, '/')) == NULL)
 		goto parse_failed;
 	*delim = 0;
-	np->remote_ip = in_aton(cur);
+	ipv6 = netpoll_parse_ip_addr(cur, &np->remote_ip);
+	if (ipv6 < 0)
+		goto parse_failed;
+	else if (np->ipv6 != (bool)ipv6)
+		goto parse_failed;
+	else
+		np->ipv6 = (bool)ipv6;
 	cur = delim + 1;
 
 	if (*cur != 0) {
@@ -742,6 +1025,7 @@ int __netpoll_setup(struct netpoll *np, struct net_device *ndev, gfp_t gfp)
 
 	np->dev = ndev;
 	strlcpy(np->dev_name, ndev->name, IFNAMSIZ);
+	INIT_WORK(&np->cleanup_work, netpoll_async_cleanup);
 
 	if ((ndev->priv_flags & IFF_DISABLE_NETPOLL) ||
 	    !ndev->netdev_ops->ndo_poll_controller) {
@@ -762,7 +1046,8 @@ int __netpoll_setup(struct netpoll *np, struct net_device *ndev, gfp_t gfp)
 		INIT_LIST_HEAD(&npinfo->rx_np);
 
 		spin_lock_init(&npinfo->rx_lock);
-		skb_queue_head_init(&npinfo->arp_tx);
+		mutex_init(&npinfo->dev_lock);
+		skb_queue_head_init(&npinfo->neigh_tx);
 		skb_queue_head_init(&npinfo->txq);
 		INIT_DELAYED_WORK(&npinfo->tx_work, queue_process);
 
@@ -775,7 +1060,7 @@ int __netpoll_setup(struct netpoll *np, struct net_device *ndev, gfp_t gfp)
 				goto free_npinfo;
 		}
 	} else {
-		npinfo = ndev->npinfo;
+		npinfo = rtnl_dereference(ndev->npinfo);
 		atomic_inc(&npinfo->refcnt);
 	}
 
@@ -806,14 +1091,19 @@ int netpoll_setup(struct netpoll *np)
 	struct in_device *in_dev;
 	int err;
 
-	if (np->dev_name)
-		ndev = dev_get_by_name(&init_net, np->dev_name);
+	rtnl_lock();
+	if (np->dev_name) {
+		struct net *net = current->nsproxy->net_ns;
+		ndev = __dev_get_by_name(net, np->dev_name);
+	}
 	if (!ndev) {
 		np_err(np, "%s doesn't exist, aborting\n", np->dev_name);
-		return -ENODEV;
+		err = -ENODEV;
+		goto unlock;
 	}
+	dev_hold(ndev);
 
-	if (ndev->master) {
+	if (netdev_master_upper_dev_get(ndev)) {
 		np_err(np, "%s is a slave device, aborting\n", np->dev_name);
 		err = -EBUSY;
 		goto put;
@@ -824,15 +1114,14 @@ int netpoll_setup(struct netpoll *np)
 
 		np_info(np, "device %s not up yet, forcing it\n", np->dev_name);
 
-		rtnl_lock();
 		err = dev_open(ndev);
-		rtnl_unlock();
 
 		if (err) {
 			np_err(np, "failed to open %s\n", ndev->name);
 			goto put;
 		}
 
+		rtnl_unlock();
 		atleast = jiffies + HZ/10;
 		atmost = jiffies + carrier_timeout * HZ;
 		while (!netif_carrier_ok(ndev)) {
@@ -852,39 +1141,70 @@ int netpoll_setup(struct netpoll *np)
 			np_notice(np, "carrier detect appears untrustworthy, waiting 4 seconds\n");
 			msleep(4000);
 		}
+		rtnl_lock();
 	}
 
-	if (!np->local_ip) {
-		rcu_read_lock();
-		in_dev = __in_dev_get_rcu(ndev);
+	if (!np->local_ip.ip) {
+		if (!np->ipv6) {
+			in_dev = __in_dev_get_rtnl(ndev);
+
+			if (!in_dev || !in_dev->ifa_list) {
+				np_err(np, "no IP address for %s, aborting\n",
+				       np->dev_name);
+				err = -EDESTADDRREQ;
+				goto put;
+			}
+
+			np->local_ip.ip = in_dev->ifa_list->ifa_local;
+			np_info(np, "local IP %pI4\n", &np->local_ip.ip);
+		} else {
+#if IS_ENABLED(CONFIG_IPV6)
+			struct inet6_dev *idev;
 
-		if (!in_dev || !in_dev->ifa_list) {
-			rcu_read_unlock();
-			np_err(np, "no IP address for %s, aborting\n",
-			       np->dev_name);
 			err = -EDESTADDRREQ;
+			idev = __in6_dev_get(ndev);
+			if (idev) {
+				struct inet6_ifaddr *ifp;
+
+				read_lock_bh(&idev->lock);
+				list_for_each_entry(ifp, &idev->addr_list, if_list) {
+					if (ipv6_addr_type(&ifp->addr) & IPV6_ADDR_LINKLOCAL)
+						continue;
+					np->local_ip.in6 = ifp->addr;
+					err = 0;
+					break;
+				}
+				read_unlock_bh(&idev->lock);
+			}
+			if (err) {
+				np_err(np, "no IPv6 address for %s, aborting\n",
+				       np->dev_name);
+				goto put;
+			} else
+				np_info(np, "local IPv6 %pI6c\n", &np->local_ip.in6);
+#else
+			np_err(np, "IPv6 is not supported %s, aborting\n",
+			       np->dev_name);
+			err = -EINVAL;
 			goto put;
+#endif
 		}
-
-		np->local_ip = in_dev->ifa_list->ifa_local;
-		rcu_read_unlock();
-		np_info(np, "local IP %pI4\n", &np->local_ip);
 	}
 
 	/* fill up the skb queue */
 	refill_skbs();
 
-	rtnl_lock();
 	err = __netpoll_setup(np, ndev, GFP_KERNEL);
-	rtnl_unlock();
-
 	if (err)
 		goto put;
 
+	rtnl_unlock();
 	return 0;
 
 put:
 	dev_put(ndev);
+unlock:
+	rtnl_unlock();
 	return err;
 }
 EXPORT_SYMBOL(netpoll_setup);
@@ -892,6 +1212,7 @@ EXPORT_SYMBOL(netpoll_setup);
 static int __init netpoll_init(void)
 {
 	skb_queue_head_init(&skb_pool);
+	init_srcu_struct(&netpoll_srcu);
 	return 0;
 }
 core_initcall(netpoll_init);
@@ -901,7 +1222,7 @@ static void rcu_cleanup_netpoll_info(struct rcu_head *rcu_head)
 	struct netpoll_info *npinfo =
 			container_of(rcu_head, struct netpoll_info, rcu);
 
-	skb_queue_purge(&npinfo->arp_tx);
+	skb_queue_purge(&npinfo->neigh_tx);
 	skb_queue_purge(&npinfo->txq);
 
 	/* we can't call cancel_delayed_work_sync here, as we are in softirq */
@@ -919,7 +1240,11 @@ void __netpoll_cleanup(struct netpoll *np)
 	struct netpoll_info *npinfo;
 	unsigned long flags;
 
-	npinfo = np->dev->npinfo;
+	/* rtnl_dereference would be preferable here but
+	 * rcu_cleanup_netpoll path can put us in here safely without
+	 * holding the rtnl, so plain rcu_dereference it is
+	 */
+	npinfo = rtnl_dereference(np->dev->npinfo);
 	if (!npinfo)
 		return;
 
@@ -931,6 +1256,8 @@ void __netpoll_cleanup(struct netpoll *np)
 		spin_unlock_irqrestore(&npinfo->rx_lock, flags);
 	}
 
+	synchronize_srcu(&netpoll_srcu);
+
 	if (atomic_dec_and_test(&npinfo->refcnt)) {
 		const struct net_device_ops *ops;
 
@@ -938,25 +1265,27 @@ void __netpoll_cleanup(struct netpoll *np)
 		if (ops->ndo_netpoll_cleanup)
 			ops->ndo_netpoll_cleanup(np->dev);
 
-		RCU_INIT_POINTER(np->dev->npinfo, NULL);
+		rcu_assign_pointer(np->dev->npinfo, NULL);
 		call_rcu_bh(&npinfo->rcu, rcu_cleanup_netpoll_info);
 	}
 }
 EXPORT_SYMBOL_GPL(__netpoll_cleanup);
 
-static void rcu_cleanup_netpoll(struct rcu_head *rcu_head)
+static void netpoll_async_cleanup(struct work_struct *work)
 {
-	struct netpoll *np = container_of(rcu_head, struct netpoll, rcu);
+	struct netpoll *np = container_of(work, struct netpoll, cleanup_work);
 
+	rtnl_lock();
 	__netpoll_cleanup(np);
+	rtnl_unlock();
 	kfree(np);
 }
 
-void __netpoll_free_rcu(struct netpoll *np)
+void __netpoll_free_async(struct netpoll *np)
 {
-	call_rcu_bh(&np->rcu, rcu_cleanup_netpoll);
+	schedule_work(&np->cleanup_work);
 }
-EXPORT_SYMBOL_GPL(__netpoll_free_rcu);
+EXPORT_SYMBOL_GPL(__netpoll_free_async);
 
 void netpoll_cleanup(struct netpoll *np)
 {
diff --git a/net/core/netprio_cgroup.c b/net/core/netprio_cgroup.c
index 79285a36035f..0777d0aa18c3 100644
--- a/net/core/netprio_cgroup.c
+++ b/net/core/netprio_cgroup.c
@@ -27,11 +27,7 @@
 
 #include <linux/fdtable.h>
 
-#define PRIOIDX_SZ 128
-
-static unsigned long prioidx_map[PRIOIDX_SZ];
-static DEFINE_SPINLOCK(prioidx_map_lock);
-static atomic_t max_prioidx = ATOMIC_INIT(0);
+#define PRIOMAP_MIN_SZ		128
 
 static inline struct cgroup_netprio_state *cgrp_netprio_state(struct cgroup *cgrp)
 {
@@ -39,136 +35,155 @@ static inline struct cgroup_netprio_state *cgrp_netprio_state(struct cgroup *cgr
 			    struct cgroup_netprio_state, css);
 }
 
-static int get_prioidx(u32 *prio)
+/*
+ * Extend @dev->priomap so that it's large enough to accomodate
+ * @target_idx.  @dev->priomap.priomap_len > @target_idx after successful
+ * return.  Must be called under rtnl lock.
+ */
+static int extend_netdev_table(struct net_device *dev, u32 target_idx)
 {
-	unsigned long flags;
-	u32 prioidx;
-
-	spin_lock_irqsave(&prioidx_map_lock, flags);
-	prioidx = find_first_zero_bit(prioidx_map, sizeof(unsigned long) * PRIOIDX_SZ);
-	if (prioidx == sizeof(unsigned long) * PRIOIDX_SZ) {
-		spin_unlock_irqrestore(&prioidx_map_lock, flags);
-		return -ENOSPC;
-	}
-	set_bit(prioidx, prioidx_map);
-	if (atomic_read(&max_prioidx) < prioidx)
-		atomic_set(&max_prioidx, prioidx);
-	spin_unlock_irqrestore(&prioidx_map_lock, flags);
-	*prio = prioidx;
-	return 0;
-}
+	struct netprio_map *old, *new;
+	size_t new_sz, new_len;
 
-static void put_prioidx(u32 idx)
-{
-	unsigned long flags;
+	/* is the existing priomap large enough? */
+	old = rtnl_dereference(dev->priomap);
+	if (old && old->priomap_len > target_idx)
+		return 0;
 
-	spin_lock_irqsave(&prioidx_map_lock, flags);
-	clear_bit(idx, prioidx_map);
-	spin_unlock_irqrestore(&prioidx_map_lock, flags);
-}
+	/*
+	 * Determine the new size.  Let's keep it power-of-two.  We start
+	 * from PRIOMAP_MIN_SZ and double it until it's large enough to
+	 * accommodate @target_idx.
+	 */
+	new_sz = PRIOMAP_MIN_SZ;
+	while (true) {
+		new_len = (new_sz - offsetof(struct netprio_map, priomap)) /
+			sizeof(new->priomap[0]);
+		if (new_len > target_idx)
+			break;
+		new_sz *= 2;
+		/* overflowed? */
+		if (WARN_ON(new_sz < PRIOMAP_MIN_SZ))
+			return -ENOSPC;
+	}
 
-static int extend_netdev_table(struct net_device *dev, u32 new_len)
-{
-	size_t new_size = sizeof(struct netprio_map) +
-			   ((sizeof(u32) * new_len));
-	struct netprio_map *new_priomap = kzalloc(new_size, GFP_KERNEL);
-	struct netprio_map *old_priomap;
+	/* allocate & copy */
+	new = kzalloc(new_sz, GFP_KERNEL);
+	if (!new)
+		return -ENOMEM;
 
-	old_priomap  = rtnl_dereference(dev->priomap);
+	if (old)
+		memcpy(new->priomap, old->priomap,
+		       old->priomap_len * sizeof(old->priomap[0]));
 
-	if (!new_priomap) {
-		pr_warn("Unable to alloc new priomap!\n");
-		return -ENOMEM;
-	}
+	new->priomap_len = new_len;
 
-	if (old_priomap)
-		memcpy(new_priomap->priomap, old_priomap->priomap,
-		       old_priomap->priomap_len *
-		       sizeof(old_priomap->priomap[0]));
+	/* install the new priomap */
+	rcu_assign_pointer(dev->priomap, new);
+	if (old)
+		kfree_rcu(old, rcu);
+	return 0;
+}
 
-	new_priomap->priomap_len = new_len;
+/**
+ * netprio_prio - return the effective netprio of a cgroup-net_device pair
+ * @cgrp: cgroup part of the target pair
+ * @dev: net_device part of the target pair
+ *
+ * Should be called under RCU read or rtnl lock.
+ */
+static u32 netprio_prio(struct cgroup *cgrp, struct net_device *dev)
+{
+	struct netprio_map *map = rcu_dereference_rtnl(dev->priomap);
 
-	rcu_assign_pointer(dev->priomap, new_priomap);
-	if (old_priomap)
-		kfree_rcu(old_priomap, rcu);
+	if (map && cgrp->id < map->priomap_len)
+		return map->priomap[cgrp->id];
 	return 0;
 }
 
-static int write_update_netdev_table(struct net_device *dev)
+/**
+ * netprio_set_prio - set netprio on a cgroup-net_device pair
+ * @cgrp: cgroup part of the target pair
+ * @dev: net_device part of the target pair
+ * @prio: prio to set
+ *
+ * Set netprio to @prio on @cgrp-@dev pair.  Should be called under rtnl
+ * lock and may fail under memory pressure for non-zero @prio.
+ */
+static int netprio_set_prio(struct cgroup *cgrp, struct net_device *dev,
+			    u32 prio)
 {
-	int ret = 0;
-	u32 max_len;
 	struct netprio_map *map;
+	int ret;
 
-	max_len = atomic_read(&max_prioidx) + 1;
+	/* avoid extending priomap for zero writes */
 	map = rtnl_dereference(dev->priomap);
-	if (!map || map->priomap_len < max_len)
-		ret = extend_netdev_table(dev, max_len);
+	if (!prio && (!map || map->priomap_len <= cgrp->id))
+		return 0;
 
-	return ret;
+	ret = extend_netdev_table(dev, cgrp->id);
+	if (ret)
+		return ret;
+
+	map = rtnl_dereference(dev->priomap);
+	map->priomap[cgrp->id] = prio;
+	return 0;
 }
 
-static struct cgroup_subsys_state *cgrp_create(struct cgroup *cgrp)
+static struct cgroup_subsys_state *cgrp_css_alloc(struct cgroup *cgrp)
 {
 	struct cgroup_netprio_state *cs;
-	int ret = -EINVAL;
 
 	cs = kzalloc(sizeof(*cs), GFP_KERNEL);
 	if (!cs)
 		return ERR_PTR(-ENOMEM);
 
-	if (cgrp->parent && cgrp_netprio_state(cgrp->parent)->prioidx)
-		goto out;
-
-	ret = get_prioidx(&cs->prioidx);
-	if (ret < 0) {
-		pr_warn("No space in priority index array\n");
-		goto out;
-	}
-
 	return &cs->css;
-out:
-	kfree(cs);
-	return ERR_PTR(ret);
 }
 
-static void cgrp_destroy(struct cgroup *cgrp)
+static int cgrp_css_online(struct cgroup *cgrp)
 {
-	struct cgroup_netprio_state *cs;
+	struct cgroup *parent = cgrp->parent;
 	struct net_device *dev;
-	struct netprio_map *map;
+	int ret = 0;
+
+	if (!parent)
+		return 0;
 
-	cs = cgrp_netprio_state(cgrp);
 	rtnl_lock();
+	/*
+	 * Inherit prios from the parent.  As all prios are set during
+	 * onlining, there is no need to clear them on offline.
+	 */
 	for_each_netdev(&init_net, dev) {
-		map = rtnl_dereference(dev->priomap);
-		if (map && cs->prioidx < map->priomap_len)
-			map->priomap[cs->prioidx] = 0;
+		u32 prio = netprio_prio(parent, dev);
+
+		ret = netprio_set_prio(cgrp, dev, prio);
+		if (ret)
+			break;
 	}
 	rtnl_unlock();
-	put_prioidx(cs->prioidx);
-	kfree(cs);
+	return ret;
+}
+
+static void cgrp_css_free(struct cgroup *cgrp)
+{
+	kfree(cgrp_netprio_state(cgrp));
 }
 
 static u64 read_prioidx(struct cgroup *cgrp, struct cftype *cft)
 {
-	return (u64)cgrp_netprio_state(cgrp)->prioidx;
+	return cgrp->id;
 }
 
 static int read_priomap(struct cgroup *cont, struct cftype *cft,
 			struct cgroup_map_cb *cb)
 {
 	struct net_device *dev;
-	u32 prioidx = cgrp_netprio_state(cont)->prioidx;
-	u32 priority;
-	struct netprio_map *map;
 
 	rcu_read_lock();
-	for_each_netdev_rcu(&init_net, dev) {
-		map = rcu_dereference(dev->priomap);
-		priority = (map && prioidx < map->priomap_len) ? map->priomap[prioidx] : 0;
-		cb->fill(cb, dev->name, priority);
-	}
+	for_each_netdev_rcu(&init_net, dev)
+		cb->fill(cb, dev->name, netprio_prio(cont, dev));
 	rcu_read_unlock();
 	return 0;
 }
@@ -176,66 +191,24 @@ static int read_priomap(struct cgroup *cont, struct cftype *cft,
 static int write_priomap(struct cgroup *cgrp, struct cftype *cft,
 			 const char *buffer)
 {
-	char *devname = kstrdup(buffer, GFP_KERNEL);
-	int ret = -EINVAL;
-	u32 prioidx = cgrp_netprio_state(cgrp)->prioidx;
-	unsigned long priority;
-	char *priostr;
+	char devname[IFNAMSIZ + 1];
 	struct net_device *dev;
-	struct netprio_map *map;
-
-	if (!devname)
-		return -ENOMEM;
-
-	/*
-	 * Minimally sized valid priomap string
-	 */
-	if (strlen(devname) < 3)
-		goto out_free_devname;
-
-	priostr = strstr(devname, " ");
-	if (!priostr)
-		goto out_free_devname;
-
-	/*
-	 *Separate the devname from the associated priority
-	 *and advance the priostr pointer to the priority value
-	 */
-	*priostr = '\0';
-	priostr++;
-
-	/*
-	 * If the priostr points to NULL, we're at the end of the passed
-	 * in string, and its not a valid write
-	 */
-	if (*priostr == '\0')
-		goto out_free_devname;
-
-	ret = kstrtoul(priostr, 10, &priority);
-	if (ret < 0)
-		goto out_free_devname;
+	u32 prio;
+	int ret;
 
-	ret = -ENODEV;
+	if (sscanf(buffer, "%"__stringify(IFNAMSIZ)"s %u", devname, &prio) != 2)
+		return -EINVAL;
 
 	dev = dev_get_by_name(&init_net, devname);
 	if (!dev)
-		goto out_free_devname;
+		return -ENODEV;
 
 	rtnl_lock();
-	ret = write_update_netdev_table(dev);
-	if (ret < 0)
-		goto out_put_dev;
 
-	map = rtnl_dereference(dev->priomap);
-	if (map)
-		map->priomap[prioidx] = priority;
+	ret = netprio_set_prio(cgrp, dev, prio);
 
-out_put_dev:
 	rtnl_unlock();
 	dev_put(dev);
-
-out_free_devname:
-	kfree(devname);
 	return ret;
 }
 
@@ -248,7 +221,7 @@ static int update_netprio(const void *v, struct file *file, unsigned n)
 	return 0;
 }
 
-void net_prio_attach(struct cgroup *cgrp, struct cgroup_taskset *tset)
+static void net_prio_attach(struct cgroup *cgrp, struct cgroup_taskset *tset)
 {
 	struct task_struct *p;
 	void *v;
@@ -276,22 +249,13 @@ static struct cftype ss_files[] = {
 
 struct cgroup_subsys net_prio_subsys = {
 	.name		= "net_prio",
-	.create		= cgrp_create,
-	.destroy	= cgrp_destroy,
+	.css_alloc	= cgrp_css_alloc,
+	.css_online	= cgrp_css_online,
+	.css_free	= cgrp_css_free,
 	.attach		= net_prio_attach,
 	.subsys_id	= net_prio_subsys_id,
 	.base_cftypes	= ss_files,
 	.module		= THIS_MODULE,
-
-	/*
-	 * net_prio has artificial limit on the number of cgroups and
-	 * disallows nesting making it impossible to co-mount it with other
-	 * hierarchical subsystems.  Remove the artificially low PRIOIDX_SZ
-	 * limit and properly nest configuration such that children follow
-	 * their parents' configurations by default and are allowed to
-	 * override and remove the following.
-	 */
-	.broken_hierarchy = true,
 };
 
 static int netprio_device_event(struct notifier_block *unused,
diff --git a/net/core/pktgen.c b/net/core/pktgen.c
index d1dc14c2aac4..6048fc1da1c2 100644
--- a/net/core/pktgen.c
+++ b/net/core/pktgen.c
@@ -164,6 +164,7 @@
 #ifdef CONFIG_XFRM
 #include <net/xfrm.h>
 #endif
+#include <net/netns/generic.h>
 #include <asm/byteorder.h>
 #include <linux/rcupdate.h>
 #include <linux/bitops.h>
@@ -212,7 +213,6 @@
 #define PKTGEN_MAGIC 0xbe9be955
 #define PG_PROC_DIR "pktgen"
 #define PGCTRL	    "pgctrl"
-static struct proc_dir_entry *pg_proc_dir;
 
 #define MAX_CFLOWS  65536
 
@@ -397,7 +397,15 @@ struct pktgen_hdr {
 	__be32 tv_usec;
 };
 
-static bool pktgen_exiting __read_mostly;
+
+static int pg_net_id __read_mostly;
+
+struct pktgen_net {
+	struct net		*net;
+	struct proc_dir_entry	*proc_dir;
+	struct list_head	pktgen_threads;
+	bool			pktgen_exiting;
+};
 
 struct pktgen_thread {
 	spinlock_t if_lock;		/* for list of devices */
@@ -414,25 +422,12 @@ struct pktgen_thread {
 
 	wait_queue_head_t queue;
 	struct completion start_done;
+	struct pktgen_net *net;
 };
 
 #define REMOVE 1
 #define FIND   0
 
-static inline ktime_t ktime_now(void)
-{
-	struct timespec ts;
-	ktime_get_ts(&ts);
-
-	return timespec_to_ktime(ts);
-}
-
-/* This works even if 32 bit because of careful byte order choice */
-static inline int ktime_lt(const ktime_t cmp1, const ktime_t cmp2)
-{
-	return cmp1.tv64 < cmp2.tv64;
-}
-
 static const char version[] =
 	"Packet Generator for packet performance testing. "
 	"Version: " VERSION "\n";
@@ -442,9 +437,9 @@ static int pktgen_add_device(struct pktgen_thread *t, const char *ifname);
 static struct pktgen_dev *pktgen_find_dev(struct pktgen_thread *t,
 					  const char *ifname, bool exact);
 static int pktgen_device_event(struct notifier_block *, unsigned long, void *);
-static void pktgen_run_all_threads(void);
-static void pktgen_reset_all_threads(void);
-static void pktgen_stop_all_threads_ifs(void);
+static void pktgen_run_all_threads(struct pktgen_net *pn);
+static void pktgen_reset_all_threads(struct pktgen_net *pn);
+static void pktgen_stop_all_threads_ifs(struct pktgen_net *pn);
 
 static void pktgen_stop(struct pktgen_thread *t);
 static void pktgen_clear_counters(struct pktgen_dev *pkt_dev);
@@ -456,7 +451,6 @@ static int pg_clone_skb_d  __read_mostly;
 static int debug  __read_mostly;
 
 static DEFINE_MUTEX(pktgen_thread_lock);
-static LIST_HEAD(pktgen_threads);
 
 static struct notifier_block pktgen_notifier_block = {
 	.notifier_call = pktgen_device_event,
@@ -478,6 +472,7 @@ static ssize_t pgctrl_write(struct file *file, const char __user *buf,
 {
 	int err = 0;
 	char data[128];
+	struct pktgen_net *pn = net_generic(current->nsproxy->net_ns, pg_net_id);
 
 	if (!capable(CAP_NET_ADMIN)) {
 		err = -EPERM;
@@ -494,13 +489,13 @@ static ssize_t pgctrl_write(struct file *file, const char __user *buf,
 	data[count - 1] = 0;	/* Make string */
 
 	if (!strcmp(data, "stop"))
-		pktgen_stop_all_threads_ifs();
+		pktgen_stop_all_threads_ifs(pn);
 
 	else if (!strcmp(data, "start"))
-		pktgen_run_all_threads();
+		pktgen_run_all_threads(pn);
 
 	else if (!strcmp(data, "reset"))
-		pktgen_reset_all_threads();
+		pktgen_reset_all_threads(pn);
 
 	else
 		pr_warning("Unknown command: %s\n", data);
@@ -675,7 +670,7 @@ static int pktgen_if_show(struct seq_file *seq, void *v)
 	seq_puts(seq, "\n");
 
 	/* not really stopped, more like last-running-at */
-	stopped = pkt_dev->running ? ktime_now() : pkt_dev->stopped_at;
+	stopped = pkt_dev->running ? ktime_get() : pkt_dev->stopped_at;
 	idle = pkt_dev->idle_acc;
 	do_div(idle, NSEC_PER_USEC);
 
@@ -1795,10 +1790,13 @@ static ssize_t pktgen_thread_write(struct file *file,
 			return -EFAULT;
 		i += len;
 		mutex_lock(&pktgen_thread_lock);
-		pktgen_add_device(t, f);
+		ret = pktgen_add_device(t, f);
 		mutex_unlock(&pktgen_thread_lock);
-		ret = count;
-		sprintf(pg_result, "OK: add_device=%s", f);
+		if (!ret) {
+			ret = count;
+			sprintf(pg_result, "OK: add_device=%s", f);
+		} else
+			sprintf(pg_result, "ERROR: can not add device %s", f);
 		goto out;
 	}
 
@@ -1838,13 +1836,14 @@ static const struct file_operations pktgen_thread_fops = {
 };
 
 /* Think find or remove for NN */
-static struct pktgen_dev *__pktgen_NN_threads(const char *ifname, int remove)
+static struct pktgen_dev *__pktgen_NN_threads(const struct pktgen_net *pn,
+					      const char *ifname, int remove)
 {
 	struct pktgen_thread *t;
 	struct pktgen_dev *pkt_dev = NULL;
 	bool exact = (remove == FIND);
 
-	list_for_each_entry(t, &pktgen_threads, th_list) {
+	list_for_each_entry(t, &pn->pktgen_threads, th_list) {
 		pkt_dev = pktgen_find_dev(t, ifname, exact);
 		if (pkt_dev) {
 			if (remove) {
@@ -1862,7 +1861,7 @@ static struct pktgen_dev *__pktgen_NN_threads(const char *ifname, int remove)
 /*
  * mark a device for removal
  */
-static void pktgen_mark_device(const char *ifname)
+static void pktgen_mark_device(const struct pktgen_net *pn, const char *ifname)
 {
 	struct pktgen_dev *pkt_dev = NULL;
 	const int max_tries = 10, msec_per_try = 125;
@@ -1873,7 +1872,7 @@ static void pktgen_mark_device(const char *ifname)
 
 	while (1) {
 
-		pkt_dev = __pktgen_NN_threads(ifname, REMOVE);
+		pkt_dev = __pktgen_NN_threads(pn, ifname, REMOVE);
 		if (pkt_dev == NULL)
 			break;	/* success */
 
@@ -1894,21 +1893,21 @@ static void pktgen_mark_device(const char *ifname)
 	mutex_unlock(&pktgen_thread_lock);
 }
 
-static void pktgen_change_name(struct net_device *dev)
+static void pktgen_change_name(const struct pktgen_net *pn, struct net_device *dev)
 {
 	struct pktgen_thread *t;
 
-	list_for_each_entry(t, &pktgen_threads, th_list) {
+	list_for_each_entry(t, &pn->pktgen_threads, th_list) {
 		struct pktgen_dev *pkt_dev;
 
 		list_for_each_entry(pkt_dev, &t->if_list, list) {
 			if (pkt_dev->odev != dev)
 				continue;
 
-			remove_proc_entry(pkt_dev->entry->name, pg_proc_dir);
+			remove_proc_entry(pkt_dev->entry->name, pn->proc_dir);
 
 			pkt_dev->entry = proc_create_data(dev->name, 0600,
-							  pg_proc_dir,
+							  pn->proc_dir,
 							  &pktgen_if_fops,
 							  pkt_dev);
 			if (!pkt_dev->entry)
@@ -1923,8 +1922,9 @@ static int pktgen_device_event(struct notifier_block *unused,
 			       unsigned long event, void *ptr)
 {
 	struct net_device *dev = ptr;
+	struct pktgen_net *pn = net_generic(dev_net(dev), pg_net_id);
 
-	if (!net_eq(dev_net(dev), &init_net) || pktgen_exiting)
+	if (pn->pktgen_exiting)
 		return NOTIFY_DONE;
 
 	/* It is OK that we do not hold the group lock right now,
@@ -1933,18 +1933,19 @@ static int pktgen_device_event(struct notifier_block *unused,
 
 	switch (event) {
 	case NETDEV_CHANGENAME:
-		pktgen_change_name(dev);
+		pktgen_change_name(pn, dev);
 		break;
 
 	case NETDEV_UNREGISTER:
-		pktgen_mark_device(dev->name);
+		pktgen_mark_device(pn, dev->name);
 		break;
 	}
 
 	return NOTIFY_DONE;
 }
 
-static struct net_device *pktgen_dev_get_by_name(struct pktgen_dev *pkt_dev,
+static struct net_device *pktgen_dev_get_by_name(const struct pktgen_net *pn,
+						 struct pktgen_dev *pkt_dev,
 						 const char *ifname)
 {
 	char b[IFNAMSIZ+5];
@@ -1958,13 +1959,14 @@ static struct net_device *pktgen_dev_get_by_name(struct pktgen_dev *pkt_dev,
 	}
 	b[i] = 0;
 
-	return dev_get_by_name(&init_net, b);
+	return dev_get_by_name(pn->net, b);
 }
 
 
 /* Associate pktgen_dev with a device. */
 
-static int pktgen_setup_dev(struct pktgen_dev *pkt_dev, const char *ifname)
+static int pktgen_setup_dev(const struct pktgen_net *pn,
+			    struct pktgen_dev *pkt_dev, const char *ifname)
 {
 	struct net_device *odev;
 	int err;
@@ -1975,7 +1977,7 @@ static int pktgen_setup_dev(struct pktgen_dev *pkt_dev, const char *ifname)
 		pkt_dev->odev = NULL;
 	}
 
-	odev = pktgen_dev_get_by_name(pkt_dev, ifname);
+	odev = pktgen_dev_get_by_name(pn, pkt_dev, ifname);
 	if (!odev) {
 		pr_err("no such netdevice: \"%s\"\n", ifname);
 		return -ENODEV;
@@ -2141,12 +2143,12 @@ static void spin(struct pktgen_dev *pkt_dev, ktime_t spin_until)
 		return;
 	}
 
-	start_time = ktime_now();
+	start_time = ktime_get();
 	if (remaining < 100000) {
 		/* for small delays (<100us), just loop until limit is reached */
 		do {
-			end_time = ktime_now();
-		} while (ktime_lt(end_time, spin_until));
+			end_time = ktime_get();
+		} while (ktime_compare(end_time, spin_until) < 0);
 	} else {
 		/* see do_nanosleep */
 		hrtimer_init_sleeper(&t, current);
@@ -2162,7 +2164,7 @@ static void spin(struct pktgen_dev *pkt_dev, ktime_t spin_until)
 			hrtimer_cancel(&t.timer);
 		} while (t.task && pkt_dev->running && !signal_pending(current));
 		__set_current_state(TASK_RUNNING);
-		end_time = ktime_now();
+		end_time = ktime_get();
 	}
 
 	pkt_dev->idle_acc += ktime_to_ns(ktime_sub(end_time, start_time));
@@ -2217,9 +2219,10 @@ static inline int f_pick(struct pktgen_dev *pkt_dev)
 static void get_ipsec_sa(struct pktgen_dev *pkt_dev, int flow)
 {
 	struct xfrm_state *x = pkt_dev->flows[flow].x;
+	struct pktgen_net *pn = net_generic(dev_net(pkt_dev->odev), pg_net_id);
 	if (!x) {
 		/*slow path: we dont already have xfrm_state*/
-		x = xfrm_stateonly_find(&init_net, DUMMY_MARK,
+		x = xfrm_stateonly_find(pn->net, DUMMY_MARK,
 					(xfrm_address_t *)&pkt_dev->cur_daddr,
 					(xfrm_address_t *)&pkt_dev->cur_saddr,
 					AF_INET,
@@ -2427,11 +2430,7 @@ static void mod_cur_headers(struct pktgen_dev *pkt_dev)
 		}
 	} else {		/* IPV6 * */
 
-		if (pkt_dev->min_in6_daddr.s6_addr32[0] == 0 &&
-		    pkt_dev->min_in6_daddr.s6_addr32[1] == 0 &&
-		    pkt_dev->min_in6_daddr.s6_addr32[2] == 0 &&
-		    pkt_dev->min_in6_daddr.s6_addr32[3] == 0) ;
-		else {
+		if (!ipv6_addr_any(&pkt_dev->min_in6_daddr)) {
 			int i;
 
 			/* Only random destinations yet */
@@ -2916,8 +2915,7 @@ static void pktgen_run(struct pktgen_thread *t)
 			pktgen_clear_counters(pkt_dev);
 			pkt_dev->running = 1;	/* Cranke yeself! */
 			pkt_dev->skb = NULL;
-			pkt_dev->started_at =
-				pkt_dev->next_tx = ktime_now();
+			pkt_dev->started_at = pkt_dev->next_tx = ktime_get();
 
 			set_pkt_overhead(pkt_dev);
 
@@ -2931,7 +2929,7 @@ static void pktgen_run(struct pktgen_thread *t)
 		t->control &= ~(T_STOP);
 }
 
-static void pktgen_stop_all_threads_ifs(void)
+static void pktgen_stop_all_threads_ifs(struct pktgen_net *pn)
 {
 	struct pktgen_thread *t;
 
@@ -2939,7 +2937,7 @@ static void pktgen_stop_all_threads_ifs(void)
 
 	mutex_lock(&pktgen_thread_lock);
 
-	list_for_each_entry(t, &pktgen_threads, th_list)
+	list_for_each_entry(t, &pn->pktgen_threads, th_list)
 		t->control |= T_STOP;
 
 	mutex_unlock(&pktgen_thread_lock);
@@ -2975,28 +2973,28 @@ signal:
 	return 0;
 }
 
-static int pktgen_wait_all_threads_run(void)
+static int pktgen_wait_all_threads_run(struct pktgen_net *pn)
 {
 	struct pktgen_thread *t;
 	int sig = 1;
 
 	mutex_lock(&pktgen_thread_lock);
 
-	list_for_each_entry(t, &pktgen_threads, th_list) {
+	list_for_each_entry(t, &pn->pktgen_threads, th_list) {
 		sig = pktgen_wait_thread_run(t);
 		if (sig == 0)
 			break;
 	}
 
 	if (sig == 0)
-		list_for_each_entry(t, &pktgen_threads, th_list)
+		list_for_each_entry(t, &pn->pktgen_threads, th_list)
 			t->control |= (T_STOP);
 
 	mutex_unlock(&pktgen_thread_lock);
 	return sig;
 }
 
-static void pktgen_run_all_threads(void)
+static void pktgen_run_all_threads(struct pktgen_net *pn)
 {
 	struct pktgen_thread *t;
 
@@ -3004,7 +3002,7 @@ static void pktgen_run_all_threads(void)
 
 	mutex_lock(&pktgen_thread_lock);
 
-	list_for_each_entry(t, &pktgen_threads, th_list)
+	list_for_each_entry(t, &pn->pktgen_threads, th_list)
 		t->control |= (T_RUN);
 
 	mutex_unlock(&pktgen_thread_lock);
@@ -3012,10 +3010,10 @@ static void pktgen_run_all_threads(void)
 	/* Propagate thread->control  */
 	schedule_timeout_interruptible(msecs_to_jiffies(125));
 
-	pktgen_wait_all_threads_run();
+	pktgen_wait_all_threads_run(pn);
 }
 
-static void pktgen_reset_all_threads(void)
+static void pktgen_reset_all_threads(struct pktgen_net *pn)
 {
 	struct pktgen_thread *t;
 
@@ -3023,7 +3021,7 @@ static void pktgen_reset_all_threads(void)
 
 	mutex_lock(&pktgen_thread_lock);
 
-	list_for_each_entry(t, &pktgen_threads, th_list)
+	list_for_each_entry(t, &pn->pktgen_threads, th_list)
 		t->control |= (T_REMDEVALL);
 
 	mutex_unlock(&pktgen_thread_lock);
@@ -3031,7 +3029,7 @@ static void pktgen_reset_all_threads(void)
 	/* Propagate thread->control  */
 	schedule_timeout_interruptible(msecs_to_jiffies(125));
 
-	pktgen_wait_all_threads_run();
+	pktgen_wait_all_threads_run(pn);
 }
 
 static void show_results(struct pktgen_dev *pkt_dev, int nr_frags)
@@ -3076,7 +3074,7 @@ static int pktgen_stop_device(struct pktgen_dev *pkt_dev)
 
 	kfree_skb(pkt_dev->skb);
 	pkt_dev->skb = NULL;
-	pkt_dev->stopped_at = ktime_now();
+	pkt_dev->stopped_at = ktime_get();
 	pkt_dev->running = 0;
 
 	show_results(pkt_dev, nr_frags);
@@ -3095,7 +3093,7 @@ static struct pktgen_dev *next_to_run(struct pktgen_thread *t)
 			continue;
 		if (best == NULL)
 			best = pkt_dev;
-		else if (ktime_lt(pkt_dev->next_tx, best->next_tx))
+		else if (ktime_compare(pkt_dev->next_tx, best->next_tx) < 0)
 			best = pkt_dev;
 	}
 	if_unlock(t);
@@ -3173,21 +3171,19 @@ static void pktgen_rem_all_ifs(struct pktgen_thread *t)
 static void pktgen_rem_thread(struct pktgen_thread *t)
 {
 	/* Remove from the thread list */
-
-	remove_proc_entry(t->tsk->comm, pg_proc_dir);
-
+	remove_proc_entry(t->tsk->comm, t->net->proc_dir);
 }
 
 static void pktgen_resched(struct pktgen_dev *pkt_dev)
 {
-	ktime_t idle_start = ktime_now();
+	ktime_t idle_start = ktime_get();
 	schedule();
-	pkt_dev->idle_acc += ktime_to_ns(ktime_sub(ktime_now(), idle_start));
+	pkt_dev->idle_acc += ktime_to_ns(ktime_sub(ktime_get(), idle_start));
 }
 
 static void pktgen_wait_for_skb(struct pktgen_dev *pkt_dev)
 {
-	ktime_t idle_start = ktime_now();
+	ktime_t idle_start = ktime_get();
 
 	while (atomic_read(&(pkt_dev->skb->users)) != 1) {
 		if (signal_pending(current))
@@ -3198,7 +3194,7 @@ static void pktgen_wait_for_skb(struct pktgen_dev *pkt_dev)
 		else
 			cpu_relax();
 	}
-	pkt_dev->idle_acc += ktime_to_ns(ktime_sub(ktime_now(), idle_start));
+	pkt_dev->idle_acc += ktime_to_ns(ktime_sub(ktime_get(), idle_start));
 }
 
 static void pktgen_xmit(struct pktgen_dev *pkt_dev)
@@ -3220,7 +3216,7 @@ static void pktgen_xmit(struct pktgen_dev *pkt_dev)
 	 * "never transmit"
 	 */
 	if (unlikely(pkt_dev->delay == ULLONG_MAX)) {
-		pkt_dev->next_tx = ktime_add_ns(ktime_now(), ULONG_MAX);
+		pkt_dev->next_tx = ktime_add_ns(ktime_get(), ULONG_MAX);
 		return;
 	}
 
@@ -3321,7 +3317,7 @@ static int pktgen_thread_worker(void *arg)
 		pkt_dev = next_to_run(t);
 
 		if (unlikely(!pkt_dev && t->control == 0)) {
-			if (pktgen_exiting)
+			if (t->net->pktgen_exiting)
 				break;
 			wait_event_interruptible_timeout(t->queue,
 							 t->control != 0,
@@ -3443,7 +3439,7 @@ static int pktgen_add_device(struct pktgen_thread *t, const char *ifname)
 
 	/* We don't allow a device to be on several threads */
 
-	pkt_dev = __pktgen_NN_threads(ifname, FIND);
+	pkt_dev = __pktgen_NN_threads(t->net, ifname, FIND);
 	if (pkt_dev) {
 		pr_err("ERROR: interface already used\n");
 		return -EBUSY;
@@ -3478,13 +3474,13 @@ static int pktgen_add_device(struct pktgen_thread *t, const char *ifname)
 	pkt_dev->svlan_id = 0xffff;
 	pkt_dev->node = -1;
 
-	err = pktgen_setup_dev(pkt_dev, ifname);
+	err = pktgen_setup_dev(t->net, pkt_dev, ifname);
 	if (err)
 		goto out1;
 	if (pkt_dev->odev->priv_flags & IFF_TX_SKB_SHARING)
 		pkt_dev->clone_skb = pg_clone_skb_d;
 
-	pkt_dev->entry = proc_create_data(ifname, 0600, pg_proc_dir,
+	pkt_dev->entry = proc_create_data(ifname, 0600, t->net->proc_dir,
 					  &pktgen_if_fops, pkt_dev);
 	if (!pkt_dev->entry) {
 		pr_err("cannot create %s/%s procfs entry\n",
@@ -3509,7 +3505,7 @@ out1:
 	return err;
 }
 
-static int __init pktgen_create_thread(int cpu)
+static int __net_init pktgen_create_thread(int cpu, struct pktgen_net *pn)
 {
 	struct pktgen_thread *t;
 	struct proc_dir_entry *pe;
@@ -3527,7 +3523,7 @@ static int __init pktgen_create_thread(int cpu)
 
 	INIT_LIST_HEAD(&t->if_list);
 
-	list_add_tail(&t->th_list, &pktgen_threads);
+	list_add_tail(&t->th_list, &pn->pktgen_threads);
 	init_completion(&t->start_done);
 
 	p = kthread_create_on_node(pktgen_thread_worker,
@@ -3543,7 +3539,7 @@ static int __init pktgen_create_thread(int cpu)
 	kthread_bind(p, cpu);
 	t->tsk = p;
 
-	pe = proc_create_data(t->tsk->comm, 0600, pg_proc_dir,
+	pe = proc_create_data(t->tsk->comm, 0600, pn->proc_dir,
 			      &pktgen_thread_fops, t);
 	if (!pe) {
 		pr_err("cannot create %s/%s procfs entry\n",
@@ -3554,6 +3550,7 @@ static int __init pktgen_create_thread(int cpu)
 		return -EINVAL;
 	}
 
+	t->net = pn;
 	wake_up_process(p);
 	wait_for_completion(&t->start_done);
 
@@ -3579,6 +3576,7 @@ static void _rem_dev_from_if_list(struct pktgen_thread *t,
 static int pktgen_remove_device(struct pktgen_thread *t,
 				struct pktgen_dev *pkt_dev)
 {
+	struct pktgen_net *pn = t->net;
 
 	pr_debug("remove_device pkt_dev=%p\n", pkt_dev);
 
@@ -3599,7 +3597,7 @@ static int pktgen_remove_device(struct pktgen_thread *t,
 	_rem_dev_from_if_list(t, pkt_dev);
 
 	if (pkt_dev->entry)
-		remove_proc_entry(pkt_dev->entry->name, pg_proc_dir);
+		remove_proc_entry(pkt_dev->entry->name, pn->proc_dir);
 
 #ifdef CONFIG_XFRM
 	free_SAs(pkt_dev);
@@ -3611,63 +3609,63 @@ static int pktgen_remove_device(struct pktgen_thread *t,
 	return 0;
 }
 
-static int __init pg_init(void)
+static int __net_init pg_net_init(struct net *net)
 {
-	int cpu;
+	struct pktgen_net *pn = net_generic(net, pg_net_id);
 	struct proc_dir_entry *pe;
-	int ret = 0;
-
-	pr_info("%s", version);
-
-	pg_proc_dir = proc_mkdir(PG_PROC_DIR, init_net.proc_net);
-	if (!pg_proc_dir)
+	int cpu, ret = 0;
+
+	pn->net = net;
+	INIT_LIST_HEAD(&pn->pktgen_threads);
+	pn->pktgen_exiting = false;
+	pn->proc_dir = proc_mkdir(PG_PROC_DIR, pn->net->proc_net);
+	if (!pn->proc_dir) {
+		pr_warn("cannot create /proc/net/%s\n", PG_PROC_DIR);
 		return -ENODEV;
-
-	pe = proc_create(PGCTRL, 0600, pg_proc_dir, &pktgen_fops);
+	}
+	pe = proc_create(PGCTRL, 0600, pn->proc_dir, &pktgen_fops);
 	if (pe == NULL) {
-		pr_err("ERROR: cannot create %s procfs entry\n", PGCTRL);
+		pr_err("cannot create %s procfs entry\n", PGCTRL);
 		ret = -EINVAL;
-		goto remove_dir;
+		goto remove;
 	}
 
-	register_netdevice_notifier(&pktgen_notifier_block);
-
 	for_each_online_cpu(cpu) {
 		int err;
 
-		err = pktgen_create_thread(cpu);
+		err = pktgen_create_thread(cpu, pn);
 		if (err)
-			pr_warning("WARNING: Cannot create thread for cpu %d (%d)\n",
+			pr_warn("Cannot create thread for cpu %d (%d)\n",
 				   cpu, err);
 	}
 
-	if (list_empty(&pktgen_threads)) {
-		pr_err("ERROR: Initialization failed for all threads\n");
+	if (list_empty(&pn->pktgen_threads)) {
+		pr_err("Initialization failed for all threads\n");
 		ret = -ENODEV;
-		goto unregister;
+		goto remove_entry;
 	}
 
 	return 0;
 
- unregister:
-	unregister_netdevice_notifier(&pktgen_notifier_block);
-	remove_proc_entry(PGCTRL, pg_proc_dir);
- remove_dir:
-	proc_net_remove(&init_net, PG_PROC_DIR);
+remove_entry:
+	remove_proc_entry(PGCTRL, pn->proc_dir);
+remove:
+	remove_proc_entry(PG_PROC_DIR, pn->net->proc_net);
 	return ret;
 }
 
-static void __exit pg_cleanup(void)
+static void __net_exit pg_net_exit(struct net *net)
 {
+	struct pktgen_net *pn = net_generic(net, pg_net_id);
 	struct pktgen_thread *t;
 	struct list_head *q, *n;
 	LIST_HEAD(list);
 
 	/* Stop all interfaces & threads */
-	pktgen_exiting = true;
+	pn->pktgen_exiting = true;
 
 	mutex_lock(&pktgen_thread_lock);
-	list_splice_init(&pktgen_threads, &list);
+	list_splice_init(&pn->pktgen_threads, &list);
 	mutex_unlock(&pktgen_thread_lock);
 
 	list_for_each_safe(q, n, &list) {
@@ -3677,12 +3675,36 @@ static void __exit pg_cleanup(void)
 		kfree(t);
 	}
 
-	/* Un-register us from receiving netdevice events */
-	unregister_netdevice_notifier(&pktgen_notifier_block);
+	remove_proc_entry(PGCTRL, pn->proc_dir);
+	remove_proc_entry(PG_PROC_DIR, pn->net->proc_net);
+}
+
+static struct pernet_operations pg_net_ops = {
+	.init = pg_net_init,
+	.exit = pg_net_exit,
+	.id   = &pg_net_id,
+	.size = sizeof(struct pktgen_net),
+};
 
-	/* Clean up proc file system */
-	remove_proc_entry(PGCTRL, pg_proc_dir);
-	proc_net_remove(&init_net, PG_PROC_DIR);
+static int __init pg_init(void)
+{
+	int ret = 0;
+
+	pr_info("%s", version);
+	ret = register_pernet_subsys(&pg_net_ops);
+	if (ret)
+		return ret;
+	ret = register_netdevice_notifier(&pktgen_notifier_block);
+	if (ret)
+		unregister_pernet_subsys(&pg_net_ops);
+
+	return ret;
+}
+
+static void __exit pg_cleanup(void)
+{
+	unregister_netdevice_notifier(&pktgen_notifier_block);
+	unregister_pernet_subsys(&pg_net_ops);
 }
 
 module_init(pg_init);
diff --git a/net/core/request_sock.c b/net/core/request_sock.c
index c31d9e8668c3..4425148d2b51 100644
--- a/net/core/request_sock.c
+++ b/net/core/request_sock.c
@@ -186,8 +186,6 @@ void reqsk_fastopen_remove(struct sock *sk, struct request_sock *req,
 	struct fastopen_queue *fastopenq =
 	    inet_csk(lsk)->icsk_accept_queue.fastopenq;
 
-	BUG_ON(!spin_is_locked(&sk->sk_lock.slock) && !sock_owned_by_user(sk));
-
 	tcp_sk(sk)->fastopen_rsk = NULL;
 	spin_lock_bh(&fastopenq->lock);
 	fastopenq->qlen--;
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 76d4c2c3c89b..a585d45cc9d9 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -128,7 +128,7 @@ static rtnl_doit_func rtnl_get_doit(int protocol, int msgindex)
 	if (tab == NULL || tab[msgindex].doit == NULL)
 		tab = rtnl_msg_handlers[PF_UNSPEC];
 
-	return tab ? tab[msgindex].doit : NULL;
+	return tab[msgindex].doit;
 }
 
 static rtnl_dumpit_func rtnl_get_dumpit(int protocol, int msgindex)
@@ -143,7 +143,7 @@ static rtnl_dumpit_func rtnl_get_dumpit(int protocol, int msgindex)
 	if (tab == NULL || tab[msgindex].dumpit == NULL)
 		tab = rtnl_msg_handlers[PF_UNSPEC];
 
-	return tab ? tab[msgindex].dumpit : NULL;
+	return tab[msgindex].dumpit;
 }
 
 static rtnl_calcit_func rtnl_get_calcit(int protocol, int msgindex)
@@ -158,7 +158,7 @@ static rtnl_calcit_func rtnl_get_calcit(int protocol, int msgindex)
 	if (tab == NULL || tab[msgindex].calcit == NULL)
 		tab = rtnl_msg_handlers[PF_UNSPEC];
 
-	return tab ? tab[msgindex].calcit : NULL;
+	return tab[msgindex].calcit;
 }
 
 /**
@@ -780,6 +780,7 @@ static noinline size_t if_nlmsg_size(const struct net_device *dev,
 	       + nla_total_size(4) /* IFLA_MTU */
 	       + nla_total_size(4) /* IFLA_LINK */
 	       + nla_total_size(4) /* IFLA_MASTER */
+	       + nla_total_size(1) /* IFLA_CARRIER */
 	       + nla_total_size(4) /* IFLA_PROMISCUITY */
 	       + nla_total_size(4) /* IFLA_NUM_TX_QUEUES */
 	       + nla_total_size(4) /* IFLA_NUM_RX_QUEUES */
@@ -879,6 +880,7 @@ static int rtnl_fill_ifinfo(struct sk_buff *skb, struct net_device *dev,
 	const struct rtnl_link_stats64 *stats;
 	struct nlattr *attr, *af_spec;
 	struct rtnl_af_ops *af_ops;
+	struct net_device *upper_dev = netdev_master_upper_dev_get(dev);
 
 	ASSERT_RTNL();
 	nlh = nlmsg_put(skb, pid, seq, type, sizeof(*ifm), flags);
@@ -907,8 +909,9 @@ static int rtnl_fill_ifinfo(struct sk_buff *skb, struct net_device *dev,
 #endif
 	    (dev->ifindex != dev->iflink &&
 	     nla_put_u32(skb, IFLA_LINK, dev->iflink)) ||
-	    (dev->master &&
-	     nla_put_u32(skb, IFLA_MASTER, dev->master->ifindex)) ||
+	    (upper_dev &&
+	     nla_put_u32(skb, IFLA_MASTER, upper_dev->ifindex)) ||
+	    nla_put_u8(skb, IFLA_CARRIER, netif_carrier_ok(dev)) ||
 	    (dev->qdisc &&
 	     nla_put_string(skb, IFLA_QDISC, dev->qdisc->ops->id)) ||
 	    (dev->ifalias &&
@@ -976,6 +979,7 @@ static int rtnl_fill_ifinfo(struct sk_buff *skb, struct net_device *dev,
 			 * report anything.
 			 */
 			ivi.spoofchk = -1;
+			memset(ivi.mac, 0, sizeof(ivi.mac));
 			if (dev->netdev_ops->ndo_get_vf_config(dev, i, &ivi))
 				break;
 			vf_mac.vf =
@@ -1057,7 +1061,6 @@ static int rtnl_dump_ifinfo(struct sk_buff *skb, struct netlink_callback *cb)
 	int idx = 0, s_idx;
 	struct net_device *dev;
 	struct hlist_head *head;
-	struct hlist_node *node;
 	struct nlattr *tb[IFLA_MAX+1];
 	u32 ext_filter_mask = 0;
 
@@ -1077,7 +1080,7 @@ static int rtnl_dump_ifinfo(struct sk_buff *skb, struct netlink_callback *cb)
 	for (h = s_h; h < NETDEV_HASHENTRIES; h++, s_idx = 0) {
 		idx = 0;
 		head = &net->dev_index_head[h];
-		hlist_for_each_entry_rcu(dev, node, head, index_hlist) {
+		hlist_for_each_entry_rcu(dev, head, index_hlist) {
 			if (idx < s_idx)
 				goto cont;
 			if (rtnl_fill_ifinfo(skb, dev, RTM_NEWLINK,
@@ -1108,6 +1111,7 @@ const struct nla_policy ifla_policy[IFLA_MAX+1] = {
 	[IFLA_MTU]		= { .type = NLA_U32 },
 	[IFLA_LINK]		= { .type = NLA_U32 },
 	[IFLA_MASTER]		= { .type = NLA_U32 },
+	[IFLA_CARRIER]		= { .type = NLA_U8 },
 	[IFLA_TXQLEN]		= { .type = NLA_U32 },
 	[IFLA_WEIGHT]		= { .type = NLA_U32 },
 	[IFLA_OPERSTATE]	= { .type = NLA_U8 },
@@ -1270,16 +1274,16 @@ static int do_setvfinfo(struct net_device *dev, struct nlattr *attr)
 
 static int do_set_master(struct net_device *dev, int ifindex)
 {
-	struct net_device *master_dev;
+	struct net_device *upper_dev = netdev_master_upper_dev_get(dev);
 	const struct net_device_ops *ops;
 	int err;
 
-	if (dev->master) {
-		if (dev->master->ifindex == ifindex)
+	if (upper_dev) {
+		if (upper_dev->ifindex == ifindex)
 			return 0;
-		ops = dev->master->netdev_ops;
+		ops = upper_dev->netdev_ops;
 		if (ops->ndo_del_slave) {
-			err = ops->ndo_del_slave(dev->master, dev);
+			err = ops->ndo_del_slave(upper_dev, dev);
 			if (err)
 				return err;
 		} else {
@@ -1288,12 +1292,12 @@ static int do_set_master(struct net_device *dev, int ifindex)
 	}
 
 	if (ifindex) {
-		master_dev = __dev_get_by_index(dev_net(dev), ifindex);
-		if (!master_dev)
+		upper_dev = __dev_get_by_index(dev_net(dev), ifindex);
+		if (!upper_dev)
 			return -EINVAL;
-		ops = master_dev->netdev_ops;
+		ops = upper_dev->netdev_ops;
 		if (ops->ndo_add_slave) {
-			err = ops->ndo_add_slave(master_dev, dev);
+			err = ops->ndo_add_slave(upper_dev, dev);
 			if (err)
 				return err;
 		} else {
@@ -1307,7 +1311,6 @@ static int do_setlink(struct net_device *dev, struct ifinfomsg *ifm,
 		      struct nlattr **tb, char *ifname, int modified)
 {
 	const struct net_device_ops *ops = dev->netdev_ops;
-	int send_addr_notify = 0;
 	int err;
 
 	if (tb[IFLA_NET_NS_PID] || tb[IFLA_NET_NS_FD]) {
@@ -1316,6 +1319,10 @@ static int do_setlink(struct net_device *dev, struct ifinfomsg *ifm,
 			err = PTR_ERR(net);
 			goto errout;
 		}
+		if (!ns_capable(net->user_ns, CAP_NET_ADMIN)) {
+			err = -EPERM;
+			goto errout;
+		}
 		err = dev_change_net_namespace(dev, net, ifname);
 		put_net(net);
 		if (err)
@@ -1356,16 +1363,6 @@ static int do_setlink(struct net_device *dev, struct ifinfomsg *ifm,
 		struct sockaddr *sa;
 		int len;
 
-		if (!ops->ndo_set_mac_address) {
-			err = -EOPNOTSUPP;
-			goto errout;
-		}
-
-		if (!netif_device_present(dev)) {
-			err = -ENODEV;
-			goto errout;
-		}
-
 		len = sizeof(sa_family_t) + dev->addr_len;
 		sa = kmalloc(len, GFP_KERNEL);
 		if (!sa) {
@@ -1375,13 +1372,11 @@ static int do_setlink(struct net_device *dev, struct ifinfomsg *ifm,
 		sa->sa_family = dev->type;
 		memcpy(sa->sa_data, nla_data(tb[IFLA_ADDRESS]),
 		       dev->addr_len);
-		err = ops->ndo_set_mac_address(dev, sa);
+		err = dev_set_mac_address(dev, sa);
 		kfree(sa);
 		if (err)
 			goto errout;
-		send_addr_notify = 1;
 		modified = 1;
-		add_device_randomness(dev->dev_addr, dev->addr_len);
 	}
 
 	if (tb[IFLA_MTU]) {
@@ -1418,7 +1413,7 @@ static int do_setlink(struct net_device *dev, struct ifinfomsg *ifm,
 
 	if (tb[IFLA_BROADCAST]) {
 		nla_memcpy(dev->broadcast, tb[IFLA_BROADCAST], dev->addr_len);
-		send_addr_notify = 1;
+		call_netdevice_notifiers(NETDEV_CHANGEADDR, dev);
 	}
 
 	if (ifm->ifi_flags || ifm->ifi_change) {
@@ -1434,6 +1429,13 @@ static int do_setlink(struct net_device *dev, struct ifinfomsg *ifm,
 		modified = 1;
 	}
 
+	if (tb[IFLA_CARRIER]) {
+		err = dev_change_carrier(dev, nla_get_u8(tb[IFLA_CARRIER]));
+		if (err)
+			goto errout;
+		modified = 1;
+	}
+
 	if (tb[IFLA_TXQLEN])
 		dev->tx_queue_len = nla_get_u32(tb[IFLA_TXQLEN]);
 
@@ -1532,9 +1534,6 @@ errout:
 		net_warn_ratelimited("A link change request failed with some changes committed already. Interface %s may have been left with an inconsistent configuration, please check.\n",
 				     dev->name);
 
-	if (send_addr_notify)
-		call_netdevice_notifiers(NETDEV_CHANGEADDR, dev);
-
 	return err;
 }
 
@@ -1638,7 +1637,7 @@ int rtnl_configure_link(struct net_device *dev, const struct ifinfomsg *ifm)
 }
 EXPORT_SYMBOL(rtnl_configure_link);
 
-struct net_device *rtnl_create_link(struct net *src_net, struct net *net,
+struct net_device *rtnl_create_link(struct net *net,
 	char *ifname, const struct rtnl_link_ops *ops, struct nlattr *tb[])
 {
 	int err;
@@ -1668,9 +1667,11 @@ struct net_device *rtnl_create_link(struct net *src_net, struct net *net,
 
 	if (tb[IFLA_MTU])
 		dev->mtu = nla_get_u32(tb[IFLA_MTU]);
-	if (tb[IFLA_ADDRESS])
+	if (tb[IFLA_ADDRESS]) {
 		memcpy(dev->dev_addr, nla_data(tb[IFLA_ADDRESS]),
 				nla_len(tb[IFLA_ADDRESS]));
+		dev->addr_assign_type = NET_ADDR_SET;
+	}
 	if (tb[IFLA_BROADCAST])
 		memcpy(dev->broadcast, nla_data(tb[IFLA_BROADCAST]),
 				nla_len(tb[IFLA_BROADCAST]));
@@ -1836,7 +1837,7 @@ replay:
 		if (IS_ERR(dest_net))
 			return PTR_ERR(dest_net);
 
-		dev = rtnl_create_link(net, dest_net, ifname, ops, tb);
+		dev = rtnl_create_link(dest_net, ifname, ops, tb);
 		if (IS_ERR(dev)) {
 			err = PTR_ERR(dev);
 			goto out;
@@ -1988,6 +1989,7 @@ errout:
 	if (err < 0)
 		rtnl_set_sk_err(net, RTNLGRP_LINK, err);
 }
+EXPORT_SYMBOL(rtmsg_ifinfo);
 
 static int nlmsg_populate_fdb_fill(struct sk_buff *skb,
 				   struct net_device *dev,
@@ -2050,7 +2052,6 @@ errout:
 static int rtnl_fdb_add(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
 {
 	struct net *net = sock_net(skb->sk);
-	struct net_device *master = NULL;
 	struct ndmsg *ndm;
 	struct nlattr *tb[NDA_MAX+1];
 	struct net_device *dev;
@@ -2089,10 +2090,10 @@ static int rtnl_fdb_add(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
 	/* Support fdb on master device the net/bridge default case */
 	if ((!ndm->ndm_flags || ndm->ndm_flags & NTF_MASTER) &&
 	    (dev->priv_flags & IFF_BRIDGE_PORT)) {
-		master = dev->master;
-		err = master->netdev_ops->ndo_fdb_add(ndm, tb,
-						      dev, addr,
-						      nlh->nlmsg_flags);
+		struct net_device *br_dev = netdev_master_upper_dev_get(dev);
+		const struct net_device_ops *ops = br_dev->netdev_ops;
+
+		err = ops->ndo_fdb_add(ndm, tb, dev, addr, nlh->nlmsg_flags);
 		if (err)
 			goto out;
 		else
@@ -2118,13 +2119,17 @@ static int rtnl_fdb_del(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
 {
 	struct net *net = sock_net(skb->sk);
 	struct ndmsg *ndm;
-	struct nlattr *llattr;
+	struct nlattr *tb[NDA_MAX+1];
 	struct net_device *dev;
 	int err = -EINVAL;
 	__u8 *addr;
 
-	if (nlmsg_len(nlh) < sizeof(*ndm))
-		return -EINVAL;
+	if (!capable(CAP_NET_ADMIN))
+		return -EPERM;
+
+	err = nlmsg_parse(nlh, sizeof(*ndm), tb, NDA_MAX, NULL);
+	if (err < 0)
+		return err;
 
 	ndm = nlmsg_data(nlh);
 	if (ndm->ndm_ifindex == 0) {
@@ -2138,22 +2143,27 @@ static int rtnl_fdb_del(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
 		return -ENODEV;
 	}
 
-	llattr = nlmsg_find_attr(nlh, sizeof(*ndm), NDA_LLADDR);
-	if (llattr == NULL || nla_len(llattr) != ETH_ALEN) {
-		pr_info("PF_BRIGDE: RTM_DELNEIGH with invalid address\n");
+	if (!tb[NDA_LLADDR] || nla_len(tb[NDA_LLADDR]) != ETH_ALEN) {
+		pr_info("PF_BRIDGE: RTM_DELNEIGH with invalid address\n");
+		return -EINVAL;
+	}
+
+	addr = nla_data(tb[NDA_LLADDR]);
+	if (!is_valid_ether_addr(addr)) {
+		pr_info("PF_BRIDGE: RTM_DELNEIGH with invalid ether address\n");
 		return -EINVAL;
 	}
 
-	addr = nla_data(llattr);
 	err = -EOPNOTSUPP;
 
 	/* Support fdb on master device the net/bridge default case */
 	if ((!ndm->ndm_flags || ndm->ndm_flags & NTF_MASTER) &&
 	    (dev->priv_flags & IFF_BRIDGE_PORT)) {
-		struct net_device *master = dev->master;
+		struct net_device *br_dev = netdev_master_upper_dev_get(dev);
+		const struct net_device_ops *ops = br_dev->netdev_ops;
 
-		if (master->netdev_ops->ndo_fdb_del)
-			err = master->netdev_ops->ndo_fdb_del(ndm, dev, addr);
+		if (ops->ndo_fdb_del)
+			err = ops->ndo_fdb_del(ndm, tb, dev, addr);
 
 		if (err)
 			goto out;
@@ -2163,7 +2173,7 @@ static int rtnl_fdb_del(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
 
 	/* Embedded bridge, macvlan, and any other device support */
 	if ((ndm->ndm_flags & NTF_SELF) && dev->netdev_ops->ndo_fdb_del) {
-		err = dev->netdev_ops->ndo_fdb_del(ndm, dev, addr);
+		err = dev->netdev_ops->ndo_fdb_del(ndm, tb, dev, addr);
 
 		if (!err) {
 			rtnl_fdb_notify(dev, addr, RTM_DELNEIGH);
@@ -2192,7 +2202,8 @@ static int nlmsg_populate_fdb(struct sk_buff *skb,
 			goto skip;
 
 		err = nlmsg_populate_fdb_fill(skb, dev, ha->addr,
-					      portid, seq, 0, NTF_SELF);
+					      portid, seq,
+					      RTM_NEWNEIGH, NTF_SELF);
 		if (err < 0)
 			return err;
 skip:
@@ -2236,9 +2247,11 @@ static int rtnl_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb)
 	rcu_read_lock();
 	for_each_netdev_rcu(net, dev) {
 		if (dev->priv_flags & IFF_BRIDGE_PORT) {
-			struct net_device *master = dev->master;
-			const struct net_device_ops *ops = master->netdev_ops;
+			struct net_device *br_dev;
+			const struct net_device_ops *ops;
 
+			br_dev = netdev_master_upper_dev_get(dev);
+			ops = br_dev->netdev_ops;
 			if (ops->ndo_fdb_dump)
 				idx = ops->ndo_fdb_dump(skb, cb, dev, idx);
 		}
@@ -2252,6 +2265,292 @@ static int rtnl_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb)
 	return skb->len;
 }
 
+int ndo_dflt_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
+			    struct net_device *dev, u16 mode)
+{
+	struct nlmsghdr *nlh;
+	struct ifinfomsg *ifm;
+	struct nlattr *br_afspec;
+	u8 operstate = netif_running(dev) ? dev->operstate : IF_OPER_DOWN;
+	struct net_device *br_dev = netdev_master_upper_dev_get(dev);
+
+	nlh = nlmsg_put(skb, pid, seq, RTM_NEWLINK, sizeof(*ifm), NLM_F_MULTI);
+	if (nlh == NULL)
+		return -EMSGSIZE;
+
+	ifm = nlmsg_data(nlh);
+	ifm->ifi_family = AF_BRIDGE;
+	ifm->__ifi_pad = 0;
+	ifm->ifi_type = dev->type;
+	ifm->ifi_index = dev->ifindex;
+	ifm->ifi_flags = dev_get_flags(dev);
+	ifm->ifi_change = 0;
+
+
+	if (nla_put_string(skb, IFLA_IFNAME, dev->name) ||
+	    nla_put_u32(skb, IFLA_MTU, dev->mtu) ||
+	    nla_put_u8(skb, IFLA_OPERSTATE, operstate) ||
+	    (br_dev &&
+	     nla_put_u32(skb, IFLA_MASTER, br_dev->ifindex)) ||
+	    (dev->addr_len &&
+	     nla_put(skb, IFLA_ADDRESS, dev->addr_len, dev->dev_addr)) ||
+	    (dev->ifindex != dev->iflink &&
+	     nla_put_u32(skb, IFLA_LINK, dev->iflink)))
+		goto nla_put_failure;
+
+	br_afspec = nla_nest_start(skb, IFLA_AF_SPEC);
+	if (!br_afspec)
+		goto nla_put_failure;
+
+	if (nla_put_u16(skb, IFLA_BRIDGE_FLAGS, BRIDGE_FLAGS_SELF) ||
+	    nla_put_u16(skb, IFLA_BRIDGE_MODE, mode)) {
+		nla_nest_cancel(skb, br_afspec);
+		goto nla_put_failure;
+	}
+	nla_nest_end(skb, br_afspec);
+
+	return nlmsg_end(skb, nlh);
+nla_put_failure:
+	nlmsg_cancel(skb, nlh);
+	return -EMSGSIZE;
+}
+EXPORT_SYMBOL(ndo_dflt_bridge_getlink);
+
+static int rtnl_bridge_getlink(struct sk_buff *skb, struct netlink_callback *cb)
+{
+	struct net *net = sock_net(skb->sk);
+	struct net_device *dev;
+	int idx = 0;
+	u32 portid = NETLINK_CB(cb->skb).portid;
+	u32 seq = cb->nlh->nlmsg_seq;
+	struct nlattr *extfilt;
+	u32 filter_mask = 0;
+
+	extfilt = nlmsg_find_attr(cb->nlh, sizeof(struct rtgenmsg),
+				  IFLA_EXT_MASK);
+	if (extfilt)
+		filter_mask = nla_get_u32(extfilt);
+
+	rcu_read_lock();
+	for_each_netdev_rcu(net, dev) {
+		const struct net_device_ops *ops = dev->netdev_ops;
+		struct net_device *br_dev = netdev_master_upper_dev_get(dev);
+
+		if (br_dev && br_dev->netdev_ops->ndo_bridge_getlink) {
+			if (idx >= cb->args[0] &&
+			    br_dev->netdev_ops->ndo_bridge_getlink(
+				    skb, portid, seq, dev, filter_mask) < 0)
+				break;
+			idx++;
+		}
+
+		if (ops->ndo_bridge_getlink) {
+			if (idx >= cb->args[0] &&
+			    ops->ndo_bridge_getlink(skb, portid, seq, dev,
+						    filter_mask) < 0)
+				break;
+			idx++;
+		}
+	}
+	rcu_read_unlock();
+	cb->args[0] = idx;
+
+	return skb->len;
+}
+
+static inline size_t bridge_nlmsg_size(void)
+{
+	return NLMSG_ALIGN(sizeof(struct ifinfomsg))
+		+ nla_total_size(IFNAMSIZ)	/* IFLA_IFNAME */
+		+ nla_total_size(MAX_ADDR_LEN)	/* IFLA_ADDRESS */
+		+ nla_total_size(sizeof(u32))	/* IFLA_MASTER */
+		+ nla_total_size(sizeof(u32))	/* IFLA_MTU */
+		+ nla_total_size(sizeof(u32))	/* IFLA_LINK */
+		+ nla_total_size(sizeof(u32))	/* IFLA_OPERSTATE */
+		+ nla_total_size(sizeof(u8))	/* IFLA_PROTINFO */
+		+ nla_total_size(sizeof(struct nlattr))	/* IFLA_AF_SPEC */
+		+ nla_total_size(sizeof(u16))	/* IFLA_BRIDGE_FLAGS */
+		+ nla_total_size(sizeof(u16));	/* IFLA_BRIDGE_MODE */
+}
+
+static int rtnl_bridge_notify(struct net_device *dev, u16 flags)
+{
+	struct net *net = dev_net(dev);
+	struct net_device *br_dev = netdev_master_upper_dev_get(dev);
+	struct sk_buff *skb;
+	int err = -EOPNOTSUPP;
+
+	skb = nlmsg_new(bridge_nlmsg_size(), GFP_ATOMIC);
+	if (!skb) {
+		err = -ENOMEM;
+		goto errout;
+	}
+
+	if ((!flags || (flags & BRIDGE_FLAGS_MASTER)) &&
+	    br_dev && br_dev->netdev_ops->ndo_bridge_getlink) {
+		err = br_dev->netdev_ops->ndo_bridge_getlink(skb, 0, 0, dev, 0);
+		if (err < 0)
+			goto errout;
+	}
+
+	if ((flags & BRIDGE_FLAGS_SELF) &&
+	    dev->netdev_ops->ndo_bridge_getlink) {
+		err = dev->netdev_ops->ndo_bridge_getlink(skb, 0, 0, dev, 0);
+		if (err < 0)
+			goto errout;
+	}
+
+	rtnl_notify(skb, net, 0, RTNLGRP_LINK, NULL, GFP_ATOMIC);
+	return 0;
+errout:
+	WARN_ON(err == -EMSGSIZE);
+	kfree_skb(skb);
+	rtnl_set_sk_err(net, RTNLGRP_LINK, err);
+	return err;
+}
+
+static int rtnl_bridge_setlink(struct sk_buff *skb, struct nlmsghdr *nlh,
+			       void *arg)
+{
+	struct net *net = sock_net(skb->sk);
+	struct ifinfomsg *ifm;
+	struct net_device *dev;
+	struct nlattr *br_spec, *attr = NULL;
+	int rem, err = -EOPNOTSUPP;
+	u16 oflags, flags = 0;
+	bool have_flags = false;
+
+	if (nlmsg_len(nlh) < sizeof(*ifm))
+		return -EINVAL;
+
+	ifm = nlmsg_data(nlh);
+	if (ifm->ifi_family != AF_BRIDGE)
+		return -EPFNOSUPPORT;
+
+	dev = __dev_get_by_index(net, ifm->ifi_index);
+	if (!dev) {
+		pr_info("PF_BRIDGE: RTM_SETLINK with unknown ifindex\n");
+		return -ENODEV;
+	}
+
+	br_spec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC);
+	if (br_spec) {
+		nla_for_each_nested(attr, br_spec, rem) {
+			if (nla_type(attr) == IFLA_BRIDGE_FLAGS) {
+				have_flags = true;
+				flags = nla_get_u16(attr);
+				break;
+			}
+		}
+	}
+
+	oflags = flags;
+
+	if (!flags || (flags & BRIDGE_FLAGS_MASTER)) {
+		struct net_device *br_dev = netdev_master_upper_dev_get(dev);
+
+		if (!br_dev || !br_dev->netdev_ops->ndo_bridge_setlink) {
+			err = -EOPNOTSUPP;
+			goto out;
+		}
+
+		err = br_dev->netdev_ops->ndo_bridge_setlink(dev, nlh);
+		if (err)
+			goto out;
+
+		flags &= ~BRIDGE_FLAGS_MASTER;
+	}
+
+	if ((flags & BRIDGE_FLAGS_SELF)) {
+		if (!dev->netdev_ops->ndo_bridge_setlink)
+			err = -EOPNOTSUPP;
+		else
+			err = dev->netdev_ops->ndo_bridge_setlink(dev, nlh);
+
+		if (!err)
+			flags &= ~BRIDGE_FLAGS_SELF;
+	}
+
+	if (have_flags)
+		memcpy(nla_data(attr), &flags, sizeof(flags));
+	/* Generate event to notify upper layer of bridge change */
+	if (!err)
+		err = rtnl_bridge_notify(dev, oflags);
+out:
+	return err;
+}
+
+static int rtnl_bridge_dellink(struct sk_buff *skb, struct nlmsghdr *nlh,
+			       void *arg)
+{
+	struct net *net = sock_net(skb->sk);
+	struct ifinfomsg *ifm;
+	struct net_device *dev;
+	struct nlattr *br_spec, *attr = NULL;
+	int rem, err = -EOPNOTSUPP;
+	u16 oflags, flags = 0;
+	bool have_flags = false;
+
+	if (nlmsg_len(nlh) < sizeof(*ifm))
+		return -EINVAL;
+
+	ifm = nlmsg_data(nlh);
+	if (ifm->ifi_family != AF_BRIDGE)
+		return -EPFNOSUPPORT;
+
+	dev = __dev_get_by_index(net, ifm->ifi_index);
+	if (!dev) {
+		pr_info("PF_BRIDGE: RTM_SETLINK with unknown ifindex\n");
+		return -ENODEV;
+	}
+
+	br_spec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC);
+	if (br_spec) {
+		nla_for_each_nested(attr, br_spec, rem) {
+			if (nla_type(attr) == IFLA_BRIDGE_FLAGS) {
+				have_flags = true;
+				flags = nla_get_u16(attr);
+				break;
+			}
+		}
+	}
+
+	oflags = flags;
+
+	if (!flags || (flags & BRIDGE_FLAGS_MASTER)) {
+		struct net_device *br_dev = netdev_master_upper_dev_get(dev);
+
+		if (!br_dev || !br_dev->netdev_ops->ndo_bridge_dellink) {
+			err = -EOPNOTSUPP;
+			goto out;
+		}
+
+		err = br_dev->netdev_ops->ndo_bridge_dellink(dev, nlh);
+		if (err)
+			goto out;
+
+		flags &= ~BRIDGE_FLAGS_MASTER;
+	}
+
+	if ((flags & BRIDGE_FLAGS_SELF)) {
+		if (!dev->netdev_ops->ndo_bridge_dellink)
+			err = -EOPNOTSUPP;
+		else
+			err = dev->netdev_ops->ndo_bridge_dellink(dev, nlh);
+
+		if (!err)
+			flags &= ~BRIDGE_FLAGS_SELF;
+	}
+
+	if (have_flags)
+		memcpy(nla_data(attr), &flags, sizeof(flags));
+	/* Generate event to notify upper layer of bridge change */
+	if (!err)
+		err = rtnl_bridge_notify(dev, oflags);
+out:
+	return err;
+}
+
 /* Protected by RTNL sempahore.  */
 static struct rtattr **rta_buf;
 static int rtattr_max;
@@ -2282,7 +2581,7 @@ static int rtnetlink_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
 	sz_idx = type>>2;
 	kind = type&3;
 
-	if (kind != 2 && !capable(CAP_NET_ADMIN))
+	if (kind != 2 && !ns_capable(net->user_ns, CAP_NET_ADMIN))
 		return -EPERM;
 
 	if (kind == 2 && nlh->nlmsg_flags&NLM_F_DUMP) {
@@ -2433,5 +2732,9 @@ void __init rtnetlink_init(void)
 	rtnl_register(PF_BRIDGE, RTM_NEWNEIGH, rtnl_fdb_add, NULL, NULL);
 	rtnl_register(PF_BRIDGE, RTM_DELNEIGH, rtnl_fdb_del, NULL, NULL);
 	rtnl_register(PF_BRIDGE, RTM_GETNEIGH, NULL, rtnl_fdb_dump, NULL);
+
+	rtnl_register(PF_BRIDGE, RTM_GETLINK, NULL, rtnl_bridge_getlink, NULL);
+	rtnl_register(PF_BRIDGE, RTM_DELLINK, rtnl_bridge_dellink, NULL, NULL);
+	rtnl_register(PF_BRIDGE, RTM_SETLINK, rtnl_bridge_setlink, NULL, NULL);
 }
 
diff --git a/net/core/scm.c b/net/core/scm.c
index ab570841a532..905dcc6ad1e3 100644
--- a/net/core/scm.c
+++ b/net/core/scm.c
@@ -35,6 +35,7 @@
 #include <net/sock.h>
 #include <net/compat.h>
 #include <net/scm.h>
+#include <net/cls_cgroup.h>
 
 
 /*
@@ -51,11 +52,11 @@ static __inline__ int scm_check_creds(struct ucred *creds)
 	if (!uid_valid(uid) || !gid_valid(gid))
 		return -EINVAL;
 
-	if ((creds->pid == task_tgid_vnr(current) || capable(CAP_SYS_ADMIN)) &&
+	if ((creds->pid == task_tgid_vnr(current) || nsown_capable(CAP_SYS_ADMIN)) &&
 	    ((uid_eq(uid, cred->uid)   || uid_eq(uid, cred->euid) ||
-	      uid_eq(uid, cred->suid)) || capable(CAP_SETUID)) &&
+	      uid_eq(uid, cred->suid)) || nsown_capable(CAP_SETUID)) &&
 	    ((gid_eq(gid, cred->gid)   || gid_eq(gid, cred->egid) ||
-	      gid_eq(gid, cred->sgid)) || capable(CAP_SETGID))) {
+	      gid_eq(gid, cred->sgid)) || nsown_capable(CAP_SETGID))) {
 	       return 0;
 	}
 	return -EPERM;
@@ -302,8 +303,10 @@ void scm_detach_fds(struct msghdr *msg, struct scm_cookie *scm)
 		}
 		/* Bump the usage count and install the file. */
 		sock = sock_from_file(fp[i], &err);
-		if (sock)
+		if (sock) {
 			sock_update_netprioidx(sock->sk, current);
+			sock_update_classid(sock->sk, current);
+		}
 		fd_install(new_fd, get_file(fp[i]));
 	}
 
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 4007c1437fda..33245ef54c3b 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -104,47 +104,37 @@ static const struct pipe_buf_operations sock_pipe_buf_ops = {
 	.get = sock_pipe_buf_get,
 };
 
-/*
- *	Keep out-of-line to prevent kernel bloat.
- *	__builtin_return_address is not used because it is not always
- *	reliable.
- */
-
 /**
- *	skb_over_panic	- 	private function
- *	@skb: buffer
- *	@sz: size
- *	@here: address
- *
- *	Out of line support code for skb_put(). Not user callable.
+ *	skb_panic - private function for out-of-line support
+ *	@skb:	buffer
+ *	@sz:	size
+ *	@addr:	address
+ *	@msg:	skb_over_panic or skb_under_panic
+ *
+ *	Out-of-line support for skb_put() and skb_push().
+ *	Called via the wrapper skb_over_panic() or skb_under_panic().
+ *	Keep out of line to prevent kernel bloat.
+ *	__builtin_return_address is not used because it is not always reliable.
  */
-static void skb_over_panic(struct sk_buff *skb, int sz, void *here)
+static void skb_panic(struct sk_buff *skb, unsigned int sz, void *addr,
+		      const char msg[])
 {
 	pr_emerg("%s: text:%p len:%d put:%d head:%p data:%p tail:%#lx end:%#lx dev:%s\n",
-		 __func__, here, skb->len, sz, skb->head, skb->data,
+		 msg, addr, skb->len, sz, skb->head, skb->data,
 		 (unsigned long)skb->tail, (unsigned long)skb->end,
 		 skb->dev ? skb->dev->name : "<NULL>");
 	BUG();
 }
 
-/**
- *	skb_under_panic	- 	private function
- *	@skb: buffer
- *	@sz: size
- *	@here: address
- *
- *	Out of line support code for skb_push(). Not user callable.
- */
-
-static void skb_under_panic(struct sk_buff *skb, int sz, void *here)
+static void skb_over_panic(struct sk_buff *skb, unsigned int sz, void *addr)
 {
-	pr_emerg("%s: text:%p len:%d put:%d head:%p data:%p tail:%#lx end:%#lx dev:%s\n",
-		 __func__, here, skb->len, sz, skb->head, skb->data,
-		 (unsigned long)skb->tail, (unsigned long)skb->end,
-		 skb->dev ? skb->dev->name : "<NULL>");
-	BUG();
+	skb_panic(skb, sz, addr, __func__);
 }
 
+static void skb_under_panic(struct sk_buff *skb, unsigned int sz, void *addr)
+{
+	skb_panic(skb, sz, addr, __func__);
+}
 
 /*
  * kmalloc_reserve is a wrapper around kmalloc_node_track_caller that tells
@@ -155,8 +145,9 @@ static void skb_under_panic(struct sk_buff *skb, int sz, void *here)
  */
 #define kmalloc_reserve(size, gfp, node, pfmemalloc) \
 	 __kmalloc_reserve(size, gfp, node, _RET_IP_, pfmemalloc)
-void *__kmalloc_reserve(size_t size, gfp_t flags, int node, unsigned long ip,
-			 bool *pfmemalloc)
+
+static void *__kmalloc_reserve(size_t size, gfp_t flags, int node,
+			       unsigned long ip, bool *pfmemalloc)
 {
 	void *obj;
 	bool ret_pfmemalloc = false;
@@ -259,6 +250,7 @@ struct sk_buff *__alloc_skb(unsigned int size, gfp_t gfp_mask,
 	skb->end = skb->tail + size;
 #ifdef NET_SKBUFF_DATA_USES_OFFSET
 	skb->mac_header = ~0U;
+	skb->transport_header = ~0U;
 #endif
 
 	/* make sure we initialize shinfo sequentially */
@@ -327,6 +319,7 @@ struct sk_buff *build_skb(void *data, unsigned int frag_size)
 	skb->end = skb->tail + size;
 #ifdef NET_SKBUFF_DATA_USES_OFFSET
 	skb->mac_header = ~0U;
+	skb->transport_header = ~0U;
 #endif
 
 	/* make sure we initialize shinfo sequentially */
@@ -348,10 +341,6 @@ struct netdev_alloc_cache {
 };
 static DEFINE_PER_CPU(struct netdev_alloc_cache, netdev_alloc_cache);
 
-#define NETDEV_FRAG_PAGE_MAX_ORDER get_order(32768)
-#define NETDEV_FRAG_PAGE_MAX_SIZE  (PAGE_SIZE << NETDEV_FRAG_PAGE_MAX_ORDER)
-#define NETDEV_PAGECNT_MAX_BIAS	   NETDEV_FRAG_PAGE_MAX_SIZE
-
 static void *__netdev_alloc_frag(unsigned int fragsz, gfp_t gfp_mask)
 {
 	struct netdev_alloc_cache *nc;
@@ -519,7 +508,7 @@ static void skb_release_data(struct sk_buff *skb)
 
 			uarg = skb_shinfo(skb)->destructor_arg;
 			if (uarg->callback)
-				uarg->callback(uarg);
+				uarg->callback(uarg, true);
 		}
 
 		if (skb_has_frag_list(skb))
@@ -635,6 +624,26 @@ void kfree_skb(struct sk_buff *skb)
 EXPORT_SYMBOL(kfree_skb);
 
 /**
+ *	skb_tx_error - report an sk_buff xmit error
+ *	@skb: buffer that triggered an error
+ *
+ *	Report xmit error if a device callback is tracking this skb.
+ *	skb must be freed afterwards.
+ */
+void skb_tx_error(struct sk_buff *skb)
+{
+	if (skb_shinfo(skb)->tx_flags & SKBTX_DEV_ZEROCOPY) {
+		struct ubuf_info *uarg;
+
+		uarg = skb_shinfo(skb)->destructor_arg;
+		if (uarg->callback)
+			uarg->callback(uarg, false);
+		skb_shinfo(skb)->tx_flags &= ~SKBTX_DEV_ZEROCOPY;
+	}
+}
+EXPORT_SYMBOL(skb_tx_error);
+
+/**
  *	consume_skb - free an skbuff
  *	@skb: buffer to free
  *
@@ -662,11 +671,14 @@ static void __copy_skb_header(struct sk_buff *new, const struct sk_buff *old)
 	new->transport_header	= old->transport_header;
 	new->network_header	= old->network_header;
 	new->mac_header		= old->mac_header;
+	new->inner_transport_header = old->inner_transport_header;
+	new->inner_network_header = old->inner_network_header;
 	skb_dst_copy(new, old);
 	new->rxhash		= old->rxhash;
 	new->ooo_okay		= old->ooo_okay;
 	new->l4_rxhash		= old->l4_rxhash;
 	new->no_fcs		= old->no_fcs;
+	new->encapsulation	= old->encapsulation;
 #ifdef CONFIG_XFRM
 	new->sp			= secpath_get(old->sp);
 #endif
@@ -797,7 +809,7 @@ int skb_copy_ubufs(struct sk_buff *skb, gfp_t gfp_mask)
 	for (i = 0; i < num_frags; i++)
 		skb_frag_unref(skb, i);
 
-	uarg->callback(uarg);
+	uarg->callback(uarg, false);
 
 	/* skb frags point to kernel buffers */
 	for (i = num_frags - 1; i >= 0; i--) {
@@ -872,6 +884,8 @@ static void copy_skb_header(struct sk_buff *new, const struct sk_buff *old)
 	new->network_header   += offset;
 	if (skb_mac_header_was_set(new))
 		new->mac_header	      += offset;
+	new->inner_transport_header += offset;
+	new->inner_network_header   += offset;
 #endif
 	skb_shinfo(new)->gso_size = skb_shinfo(old)->gso_size;
 	skb_shinfo(new)->gso_segs = skb_shinfo(old)->gso_segs;
@@ -1069,6 +1083,8 @@ int pskb_expand_head(struct sk_buff *skb, int nhead, int ntail,
 	skb->network_header   += off;
 	if (skb_mac_header_was_set(skb))
 		skb->mac_header += off;
+	skb->inner_transport_header += off;
+	skb->inner_network_header += off;
 	/* Only adjust this if it actually is csum_start rather than csum */
 	if (skb->ip_summed == CHECKSUM_PARTIAL)
 		skb->csum_start += nhead;
@@ -1168,6 +1184,8 @@ struct sk_buff *skb_copy_expand(const struct sk_buff *skb,
 	n->network_header   += off;
 	if (skb_mac_header_was_set(skb))
 		n->mac_header += off;
+	n->inner_transport_header += off;
+	n->inner_network_header	   += off;
 #endif
 
 	return n;
@@ -1620,7 +1638,7 @@ static void sock_spd_release(struct splice_pipe_desc *spd, unsigned int i)
 
 static struct page *linear_to_page(struct page *page, unsigned int *len,
 				   unsigned int *offset,
-				   struct sk_buff *skb, struct sock *sk)
+				   struct sock *sk)
 {
 	struct page_frag *pfrag = sk_page_frag(sk);
 
@@ -1653,14 +1671,14 @@ static bool spd_can_coalesce(const struct splice_pipe_desc *spd,
 static bool spd_fill_page(struct splice_pipe_desc *spd,
 			  struct pipe_inode_info *pipe, struct page *page,
 			  unsigned int *len, unsigned int offset,
-			  struct sk_buff *skb, bool linear,
+			  bool linear,
 			  struct sock *sk)
 {
 	if (unlikely(spd->nr_pages == MAX_SKB_FRAGS))
 		return true;
 
 	if (linear) {
-		page = linear_to_page(page, len, &offset, skb, sk);
+		page = linear_to_page(page, len, &offset, sk);
 		if (!page)
 			return true;
 	}
@@ -1677,23 +1695,9 @@ static bool spd_fill_page(struct splice_pipe_desc *spd,
 	return false;
 }
 
-static inline void __segment_seek(struct page **page, unsigned int *poff,
-				  unsigned int *plen, unsigned int off)
-{
-	unsigned long n;
-
-	*poff += off;
-	n = *poff / PAGE_SIZE;
-	if (n)
-		*page = nth_page(*page, n);
-
-	*poff = *poff % PAGE_SIZE;
-	*plen -= off;
-}
-
 static bool __splice_segment(struct page *page, unsigned int poff,
 			     unsigned int plen, unsigned int *off,
-			     unsigned int *len, struct sk_buff *skb,
+			     unsigned int *len,
 			     struct splice_pipe_desc *spd, bool linear,
 			     struct sock *sk,
 			     struct pipe_inode_info *pipe)
@@ -1708,23 +1712,19 @@ static bool __splice_segment(struct page *page, unsigned int poff,
 	}
 
 	/* ignore any bits we already processed */
-	if (*off) {
-		__segment_seek(&page, &poff, &plen, *off);
-		*off = 0;
-	}
+	poff += *off;
+	plen -= *off;
+	*off = 0;
 
 	do {
 		unsigned int flen = min(*len, plen);
 
-		/* the linear region may spread across several pages  */
-		flen = min_t(unsigned int, flen, PAGE_SIZE - poff);
-
-		if (spd_fill_page(spd, pipe, page, &flen, poff, skb, linear, sk))
+		if (spd_fill_page(spd, pipe, page, &flen, poff,
+				  linear, sk))
 			return true;
-
-		__segment_seek(&page, &poff, &plen, flen);
+		poff += flen;
+		plen -= flen;
 		*len -= flen;
-
 	} while (*len && plen);
 
 	return false;
@@ -1748,7 +1748,7 @@ static bool __skb_splice_bits(struct sk_buff *skb, struct pipe_inode_info *pipe,
 	if (__splice_segment(virt_to_page(skb->data),
 			     (unsigned long) skb->data & (PAGE_SIZE - 1),
 			     skb_headlen(skb),
-			     offset, len, skb, spd,
+			     offset, len, spd,
 			     skb_head_is_locked(skb),
 			     sk, pipe))
 		return true;
@@ -1761,7 +1761,7 @@ static bool __skb_splice_bits(struct sk_buff *skb, struct pipe_inode_info *pipe,
 
 		if (__splice_segment(skb_frag_page(f),
 				     f->page_offset, skb_frag_size(f),
-				     offset, len, skb, spd, false, sk, pipe))
+				     offset, len, spd, false, sk, pipe))
 			return true;
 	}
 
@@ -2326,6 +2326,7 @@ void skb_split(struct sk_buff *skb, struct sk_buff *skb1, const u32 len)
 {
 	int pos = skb_headlen(skb);
 
+	skb_shinfo(skb1)->tx_flags = skb_shinfo(skb)->tx_flags & SKBTX_SHARED_FRAG;
 	if (len < pos)	/* Split line is inside header. */
 		skb_split_inside_header(skb, skb1, len, pos);
 	else		/* Second chunk has no header, nothing to copy. */
@@ -2657,48 +2658,37 @@ int skb_append_datato_frags(struct sock *sk, struct sk_buff *skb,
 					int len, int odd, struct sk_buff *skb),
 			void *from, int length)
 {
-	int frg_cnt = 0;
-	skb_frag_t *frag = NULL;
-	struct page *page = NULL;
-	int copy, left;
+	int frg_cnt = skb_shinfo(skb)->nr_frags;
+	int copy;
 	int offset = 0;
 	int ret;
+	struct page_frag *pfrag = &current->task_frag;
 
 	do {
 		/* Return error if we don't have space for new frag */
-		frg_cnt = skb_shinfo(skb)->nr_frags;
 		if (frg_cnt >= MAX_SKB_FRAGS)
-			return -EFAULT;
-
-		/* allocate a new page for next frag */
-		page = alloc_pages(sk->sk_allocation, 0);
+			return -EMSGSIZE;
 
-		/* If alloc_page fails just return failure and caller will
-		 * free previous allocated pages by doing kfree_skb()
-		 */
-		if (page == NULL)
+		if (!sk_page_frag_refill(sk, pfrag))
 			return -ENOMEM;
 
-		/* initialize the next frag */
-		skb_fill_page_desc(skb, frg_cnt, page, 0, 0);
-		skb->truesize += PAGE_SIZE;
-		atomic_add(PAGE_SIZE, &sk->sk_wmem_alloc);
-
-		/* get the new initialized frag */
-		frg_cnt = skb_shinfo(skb)->nr_frags;
-		frag = &skb_shinfo(skb)->frags[frg_cnt - 1];
-
 		/* copy the user data to page */
-		left = PAGE_SIZE - frag->page_offset;
-		copy = (length > left)? left : length;
+		copy = min_t(int, length, pfrag->size - pfrag->offset);
 
-		ret = getfrag(from, skb_frag_address(frag) + skb_frag_size(frag),
-			    offset, copy, 0, skb);
+		ret = getfrag(from, page_address(pfrag->page) + pfrag->offset,
+			      offset, copy, 0, skb);
 		if (ret < 0)
 			return -EFAULT;
 
 		/* copy was successful so update the size parameters */
-		skb_frag_size_add(frag, copy);
+		skb_fill_page_desc(skb, frg_cnt, pfrag->page, pfrag->offset,
+				   copy);
+		frg_cnt++;
+		pfrag->offset += copy;
+		get_page(pfrag->page);
+
+		skb->truesize += copy;
+		atomic_add(copy, &sk->sk_wmem_alloc);
 		skb->len += copy;
 		skb->data_len += copy;
 		offset += copy;
@@ -2748,6 +2738,7 @@ struct sk_buff *skb_segment(struct sk_buff *skb, netdev_features_t features)
 	unsigned int mss = skb_shinfo(skb)->gso_size;
 	unsigned int doffset = skb->data - skb_mac_header(skb);
 	unsigned int offset = doffset;
+	unsigned int tnl_hlen = skb_tnl_header_len(skb);
 	unsigned int headroom;
 	unsigned int len;
 	int sg = !!(features & NETIF_F_SG);
@@ -2824,7 +2815,10 @@ struct sk_buff *skb_segment(struct sk_buff *skb, netdev_features_t features)
 		skb_set_network_header(nskb, skb->mac_len);
 		nskb->transport_header = (nskb->network_header +
 					  skb_network_header_len(skb));
-		skb_copy_from_linear_data(skb, nskb->data, doffset);
+
+		skb_copy_from_linear_data_offset(skb, -tnl_hlen,
+						 nskb->data - tnl_hlen,
+						 doffset + tnl_hlen);
 
 		if (fskb != skb_shinfo(skb)->frag_list)
 			continue;
@@ -2842,6 +2836,8 @@ struct sk_buff *skb_segment(struct sk_buff *skb, netdev_features_t features)
 		skb_copy_from_linear_data_offset(skb, offset,
 						 skb_put(nskb, hsize), hsize);
 
+		skb_shinfo(nskb)->tx_flags = skb_shinfo(skb)->tx_flags & SKBTX_SHARED_FRAG;
+
 		while (pos < offset + len && i < nfrags) {
 			*frag = skb_shinfo(skb)->frags[i];
 			__skb_frag_ref(frag);
@@ -2999,12 +2995,11 @@ int skb_gro_receive(struct sk_buff **head, struct sk_buff *skb)
 	memcpy(skb_mac_header(nskb), skb_mac_header(p),
 	       p->data - skb_mac_header(p));
 
-	*NAPI_GRO_CB(nskb) = *NAPI_GRO_CB(p);
 	skb_shinfo(nskb)->frag_list = p;
 	skb_shinfo(nskb)->gso_size = pinfo->gso_size;
 	pinfo->gso_size = 0;
 	skb_header_release(p);
-	nskb->prev = p;
+	NAPI_GRO_CB(nskb)->last = p;
 
 	nskb->data_len += p->len;
 	nskb->truesize += p->truesize;
@@ -3030,8 +3025,8 @@ merge:
 
 	__skb_pull(skb, offset);
 
-	p->prev->next = skb;
-	p->prev = skb;
+	NAPI_GRO_CB(p)->last->next = skb;
+	NAPI_GRO_CB(p)->last = skb;
 	skb_header_release(skb);
 
 done:
diff --git a/net/core/sock.c b/net/core/sock.c
index 8a146cfcc366..b261a7977746 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -186,8 +186,10 @@ void mem_cgroup_sockets_destroy(struct mem_cgroup *memcg)
 static struct lock_class_key af_family_keys[AF_MAX];
 static struct lock_class_key af_family_slock_keys[AF_MAX];
 
+#if defined(CONFIG_MEMCG_KMEM)
 struct static_key memcg_socket_limit_enabled;
 EXPORT_SYMBOL(memcg_socket_limit_enabled);
+#endif
 
 /*
  * Make lock validator output more readable. (we pre-construct these
@@ -505,7 +507,8 @@ struct dst_entry *sk_dst_check(struct sock *sk, u32 cookie)
 }
 EXPORT_SYMBOL(sk_dst_check);
 
-static int sock_bindtodevice(struct sock *sk, char __user *optval, int optlen)
+static int sock_setbindtodevice(struct sock *sk, char __user *optval,
+				int optlen)
 {
 	int ret = -ENOPROTOOPT;
 #ifdef CONFIG_NETDEVICES
@@ -515,7 +518,7 @@ static int sock_bindtodevice(struct sock *sk, char __user *optval, int optlen)
 
 	/* Sorry... */
 	ret = -EPERM;
-	if (!capable(CAP_NET_RAW))
+	if (!ns_capable(net->user_ns, CAP_NET_RAW))
 		goto out;
 
 	ret = -EINVAL;
@@ -562,6 +565,59 @@ out:
 	return ret;
 }
 
+static int sock_getbindtodevice(struct sock *sk, char __user *optval,
+				int __user *optlen, int len)
+{
+	int ret = -ENOPROTOOPT;
+#ifdef CONFIG_NETDEVICES
+	struct net *net = sock_net(sk);
+	struct net_device *dev;
+	char devname[IFNAMSIZ];
+	unsigned seq;
+
+	if (sk->sk_bound_dev_if == 0) {
+		len = 0;
+		goto zero;
+	}
+
+	ret = -EINVAL;
+	if (len < IFNAMSIZ)
+		goto out;
+
+retry:
+	seq = read_seqcount_begin(&devnet_rename_seq);
+	rcu_read_lock();
+	dev = dev_get_by_index_rcu(net, sk->sk_bound_dev_if);
+	ret = -ENODEV;
+	if (!dev) {
+		rcu_read_unlock();
+		goto out;
+	}
+
+	strcpy(devname, dev->name);
+	rcu_read_unlock();
+	if (read_seqcount_retry(&devnet_rename_seq, seq))
+		goto retry;
+
+	len = strlen(devname) + 1;
+
+	ret = -EFAULT;
+	if (copy_to_user(optval, devname, len))
+		goto out;
+
+zero:
+	ret = -EFAULT;
+	if (put_user(len, optlen))
+		goto out;
+
+	ret = 0;
+
+out:
+#endif
+
+	return ret;
+}
+
 static inline void sock_valbool_flag(struct sock *sk, int bit, int valbool)
 {
 	if (valbool)
@@ -589,7 +645,7 @@ int sock_setsockopt(struct socket *sock, int level, int optname,
 	 */
 
 	if (optname == SO_BINDTODEVICE)
-		return sock_bindtodevice(sk, optval, optlen);
+		return sock_setbindtodevice(sk, optval, optlen);
 
 	if (optlen < sizeof(int))
 		return -EINVAL;
@@ -611,6 +667,9 @@ int sock_setsockopt(struct socket *sock, int level, int optname,
 	case SO_REUSEADDR:
 		sk->sk_reuse = (valbool ? SK_CAN_REUSE : SK_NO_REUSE);
 		break;
+	case SO_REUSEPORT:
+		sk->sk_reuseport = valbool;
+		break;
 	case SO_TYPE:
 	case SO_PROTOCOL:
 	case SO_DOMAIN:
@@ -696,7 +755,8 @@ set_rcvbuf:
 		break;
 
 	case SO_PRIORITY:
-		if ((val >= 0 && val <= 6) || capable(CAP_NET_ADMIN))
+		if ((val >= 0 && val <= 6) ||
+		    ns_capable(sock_net(sk)->user_ns, CAP_NET_ADMIN))
 			sk->sk_priority = val;
 		else
 			ret = -EPERM;
@@ -806,6 +866,13 @@ set_rcvbuf:
 		ret = sk_detach_filter(sk);
 		break;
 
+	case SO_LOCK_FILTER:
+		if (sock_flag(sk, SOCK_FILTER_LOCKED) && !valbool)
+			ret = -EPERM;
+		else
+			sock_valbool_flag(sk, SOCK_FILTER_LOCKED, valbool);
+		break;
+
 	case SO_PASSSEC:
 		if (valbool)
 			set_bit(SOCK_PASSSEC, &sock->flags);
@@ -813,7 +880,7 @@ set_rcvbuf:
 			clear_bit(SOCK_PASSSEC, &sock->flags);
 		break;
 	case SO_MARK:
-		if (!capable(CAP_NET_ADMIN))
+		if (!ns_capable(sock_net(sk)->user_ns, CAP_NET_ADMIN))
 			ret = -EPERM;
 		else
 			sk->sk_mark = val;
@@ -910,6 +977,10 @@ int sock_getsockopt(struct socket *sock, int level, int optname,
 		v.val = sk->sk_reuse;
 		break;
 
+	case SO_REUSEPORT:
+		v.val = sk->sk_reuseport;
+		break;
+
 	case SO_KEEPALIVE:
 		v.val = sock_flag(sk, SOCK_KEEPOPEN);
 		break;
@@ -1074,6 +1145,21 @@ int sock_getsockopt(struct socket *sock, int level, int optname,
 	case SO_NOFCS:
 		v.val = sock_flag(sk, SOCK_NOFCS);
 		break;
+
+	case SO_BINDTODEVICE:
+		return sock_getbindtodevice(sk, optval, optlen, len);
+
+	case SO_GET_FILTER:
+		len = sk_get_filter(sk, (struct sock_filter __user *)optval, len);
+		if (len < 0)
+			return len;
+
+		goto lenout;
+
+	case SO_LOCK_FILTER:
+		v.val = sock_flag(sk, SOCK_FILTER_LOCKED);
+		break;
+
 	default:
 		return -ENOPROTOOPT;
 	}
@@ -1214,13 +1300,11 @@ static void sk_prot_free(struct proto *prot, struct sock *sk)
 
 #ifdef CONFIG_CGROUPS
 #if IS_ENABLED(CONFIG_NET_CLS_CGROUP)
-void sock_update_classid(struct sock *sk)
+void sock_update_classid(struct sock *sk, struct task_struct *task)
 {
 	u32 classid;
 
-	rcu_read_lock();  /* doing current task, which cannot vanish. */
-	classid = task_cls_classid(current);
-	rcu_read_unlock();
+	classid = task_cls_classid(task);
 	if (classid != sk->sk_classid)
 		sk->sk_classid = classid;
 }
@@ -1263,7 +1347,7 @@ struct sock *sk_alloc(struct net *net, int family, gfp_t priority,
 		sock_net_set(sk, get_net(net));
 		atomic_set(&sk->sk_wmem_alloc, 1);
 
-		sock_update_classid(sk);
+		sock_update_classid(sk, current);
 		sock_update_netprioidx(sk, current);
 	}
 
@@ -2148,7 +2232,7 @@ EXPORT_SYMBOL(sk_reset_timer);
 
 void sk_stop_timer(struct sock *sk, struct timer_list* timer)
 {
-	if (timer_pending(timer) && del_timer(timer))
+	if (del_timer(timer))
 		__sock_put(sk);
 }
 EXPORT_SYMBOL(sk_stop_timer);
@@ -2754,7 +2838,7 @@ static const struct file_operations proto_seq_fops = {
 
 static __net_init int proto_init_net(struct net *net)
 {
-	if (!proc_net_fops_create(net, "protocols", S_IRUGO, &proto_seq_fops))
+	if (!proc_create("protocols", S_IRUGO, net->proc_net, &proto_seq_fops))
 		return -ENOMEM;
 
 	return 0;
@@ -2762,7 +2846,7 @@ static __net_init int proto_init_net(struct net *net)
 
 static __net_exit void proto_exit_net(struct net *net)
 {
-	proc_net_remove(net, "protocols");
+	remove_proc_entry("protocols", net->proc_net);
 }
 
 
diff --git a/net/core/sock_diag.c b/net/core/sock_diag.c
index 602cd637182e..a29e90cf36b7 100644
--- a/net/core/sock_diag.c
+++ b/net/core/sock_diag.c
@@ -97,21 +97,6 @@ void sock_diag_unregister(const struct sock_diag_handler *hnld)
 }
 EXPORT_SYMBOL_GPL(sock_diag_unregister);
 
-static const inline struct sock_diag_handler *sock_diag_lock_handler(int family)
-{
-	if (sock_diag_handlers[family] == NULL)
-		request_module("net-pf-%d-proto-%d-type-%d", PF_NETLINK,
-				NETLINK_SOCK_DIAG, family);
-
-	mutex_lock(&sock_diag_table_mutex);
-	return sock_diag_handlers[family];
-}
-
-static inline void sock_diag_unlock_handler(const struct sock_diag_handler *h)
-{
-	mutex_unlock(&sock_diag_table_mutex);
-}
-
 static int __sock_diag_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
 {
 	int err;
@@ -121,12 +106,20 @@ static int __sock_diag_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
 	if (nlmsg_len(nlh) < sizeof(*req))
 		return -EINVAL;
 
-	hndl = sock_diag_lock_handler(req->sdiag_family);
+	if (req->sdiag_family >= AF_MAX)
+		return -EINVAL;
+
+	if (sock_diag_handlers[req->sdiag_family] == NULL)
+		request_module("net-pf-%d-proto-%d-type-%d", PF_NETLINK,
+				NETLINK_SOCK_DIAG, req->sdiag_family);
+
+	mutex_lock(&sock_diag_table_mutex);
+	hndl = sock_diag_handlers[req->sdiag_family];
 	if (hndl == NULL)
 		err = -ENOENT;
 	else
 		err = hndl->dump(skb, nlh);
-	sock_diag_unlock_handler(hndl);
+	mutex_unlock(&sock_diag_table_mutex);
 
 	return err;
 }
diff --git a/net/core/sysctl_net_core.c b/net/core/sysctl_net_core.c
index a7c36845b123..cfdb46ab3a7f 100644
--- a/net/core/sysctl_net_core.c
+++ b/net/core/sysctl_net_core.c
@@ -20,6 +20,8 @@
 #include <net/sock.h>
 #include <net/net_ratelimit.h>
 
+static int one = 1;
+
 #ifdef CONFIG_RPS
 static int rps_sock_flow_sysctl(ctl_table *table, int write,
 				void __user *buffer, size_t *lenp, loff_t *ppos)
@@ -92,28 +94,32 @@ static struct ctl_table net_core_table[] = {
 		.data		= &sysctl_wmem_max,
 		.maxlen		= sizeof(int),
 		.mode		= 0644,
-		.proc_handler	= proc_dointvec
+		.proc_handler	= proc_dointvec_minmax,
+		.extra1		= &one,
 	},
 	{
 		.procname	= "rmem_max",
 		.data		= &sysctl_rmem_max,
 		.maxlen		= sizeof(int),
 		.mode		= 0644,
-		.proc_handler	= proc_dointvec
+		.proc_handler	= proc_dointvec_minmax,
+		.extra1		= &one,
 	},
 	{
 		.procname	= "wmem_default",
 		.data		= &sysctl_wmem_default,
 		.maxlen		= sizeof(int),
 		.mode		= 0644,
-		.proc_handler	= proc_dointvec
+		.proc_handler	= proc_dointvec_minmax,
+		.extra1		= &one,
 	},
 	{
 		.procname	= "rmem_default",
 		.data		= &sysctl_rmem_default,
 		.maxlen		= sizeof(int),
 		.mode		= 0644,
-		.proc_handler	= proc_dointvec
+		.proc_handler	= proc_dointvec_minmax,
+		.extra1		= &one,
 	},
 	{
 		.procname	= "dev_weight",
@@ -216,6 +222,11 @@ static __net_init int sysctl_core_net_init(struct net *net)
 			goto err_dup;
 
 		tbl[0].data = &net->core.sysctl_somaxconn;
+
+		/* Don't export any sysctls to unprivileged users */
+		if (net->user_ns != &init_user_ns) {
+			tbl[0].procname = NULL;
+		}
 	}
 
 	net->core.sysctl_hdr = register_net_sysctl(net, "net/core", tbl);