Merge branch 'master'

31 files changed, 905 insertions, 399 deletions

diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c
index 3948949a609..458031bfff5 100644
--- a/net/8021q/vlan.c
+++ b/net/8021q/vlan.c
@@ -364,6 +364,14 @@ static void vlan_transfer_operstate(const struct net_device *dev, struct net_dev
 	}
 }
 
+/*
+ * vlan network devices have devices nesting below it, and are a special
+ * "super class" of normal network devices; split their locks off into a
+ * separate class since they always nest.
+ */
+static struct lock_class_key vlan_netdev_xmit_lock_key;
+
+
 /*  Attach a VLAN device to a mac address (ie Ethernet Card).
  *  Returns the device that was created, or NULL if there was
  *  an error of some kind.
@@ -460,6 +468,7 @@ static struct net_device *register_vlan_device(const char *eth_IF_name,
 		    
 	new_dev = alloc_netdev(sizeof(struct vlan_dev_info), name,
 			       vlan_setup);
+
 	if (new_dev == NULL)
 		goto out_unlock;
 
@@ -518,6 +527,8 @@ static struct net_device *register_vlan_device(const char *eth_IF_name,
 	if (register_netdevice(new_dev))
 		goto out_free_newdev;
 
+	lockdep_set_class(&new_dev->_xmit_lock, &vlan_netdev_xmit_lock_key);
+
 	new_dev->iflink = real_dev->ifindex;
 	vlan_transfer_operstate(real_dev, new_dev);
 	linkwatch_fire_event(new_dev); /* _MUST_ call rfc2863_policy() */
diff --git a/net/atm/clip.c b/net/atm/clip.c
index 87a454f5c89..121bf6f4914 100644
--- a/net/atm/clip.c
+++ b/net/atm/clip.c
@@ -23,6 +23,7 @@
 #include <linux/if.h> /* for IFF_UP */
 #include <linux/inetdevice.h>
 #include <linux/bitops.h>
+#include <linux/poison.h>
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
 #include <linux/rcupdate.h>
@@ -266,7 +267,7 @@ static void clip_neigh_destroy(struct neighbour *neigh)
 	DPRINTK("clip_neigh_destroy (neigh %p)\n", neigh);
 	if (NEIGH2ENTRY(neigh)->vccs)
 		printk(KERN_CRIT "clip_neigh_destroy: vccs != NULL !!!\n");
-	NEIGH2ENTRY(neigh)->vccs = (void *) 0xdeadbeef;
+	NEIGH2ENTRY(neigh)->vccs = (void *) NEIGHBOR_DEAD;
 }
 
 static void clip_neigh_solicit(struct neighbour *neigh, struct sk_buff *skb)
diff --git a/net/ax25/ax25_ip.c b/net/ax25/ax25_ip.c
index 9be5c15e63d..136c3aefa9d 100644
--- a/net/ax25/ax25_ip.c
+++ b/net/ax25/ax25_ip.c
@@ -103,11 +103,13 @@ int ax25_rebuild_header(struct sk_buff *skb)
 {
 	struct sk_buff *ourskb;
 	unsigned char *bp  = skb->data;
-	struct net_device *dev;
+	ax25_route *route;
+	struct net_device *dev = NULL;
 	ax25_address *src, *dst;
+	ax25_digi *digipeat = NULL;
 	ax25_dev *ax25_dev;
-	ax25_route _route, *route = &_route;
 	ax25_cb *ax25;
+	char ip_mode = ' ';
 
 	dst = (ax25_address *)(bp + 1);
 	src = (ax25_address *)(bp + 8);
@@ -115,8 +117,12 @@ int ax25_rebuild_header(struct sk_buff *skb)
   	if (arp_find(bp + 1, skb))
   		return 1;
 
-	route = ax25_rt_find_route(route, dst, NULL);
-	dev      = route->dev;
+	route = ax25_get_route(dst, NULL);
+	if (route) {
+		digipeat = route->digipeat;
+		dev = route->dev;
+		ip_mode = route->ip_mode;
+	};
 
 	if (dev == NULL)
 		dev = skb->dev;
@@ -126,7 +132,7 @@ int ax25_rebuild_header(struct sk_buff *skb)
 	}
 
 	if (bp[16] == AX25_P_IP) {
-		if (route->ip_mode == 'V' || (route->ip_mode == ' ' && ax25_dev->values[AX25_VALUES_IPDEFMODE])) {
+		if (ip_mode == 'V' || (ip_mode == ' ' && ax25_dev->values[AX25_VALUES_IPDEFMODE])) {
 			/*
 			 *	We copy the buffer and release the original thereby
 			 *	keeping it straight
@@ -172,7 +178,7 @@ int ax25_rebuild_header(struct sk_buff *skb)
 			    ourskb, 
 			    ax25_dev->values[AX25_VALUES_PACLEN], 
 			    &src_c,
-			    &dst_c, route->digipeat, dev);
+			    &dst_c, digipeat, dev);
 			if (ax25) {
 				ax25_cb_put(ax25);
 			}
@@ -190,7 +196,7 @@ int ax25_rebuild_header(struct sk_buff *skb)
 
 	skb_pull(skb, AX25_KISS_HEADER_LEN);
 
-	if (route->digipeat != NULL) {
+	if (digipeat != NULL) {
 		if ((ourskb = ax25_rt_build_path(skb, src, dst, route->digipeat)) == NULL) {
 			kfree_skb(skb);
 			goto put;
@@ -202,7 +208,8 @@ int ax25_rebuild_header(struct sk_buff *skb)
 	ax25_queue_xmit(skb, dev);
 
 put:
-	ax25_put_route(route);
+	if (route)
+		ax25_put_route(route);
 
   	return 1;
 }
diff --git a/net/ax25/ax25_route.c b/net/ax25/ax25_route.c
index 5ac98250797..51b7bdaf27e 100644
--- a/net/ax25/ax25_route.c
+++ b/net/ax25/ax25_route.c
@@ -41,8 +41,6 @@
 static ax25_route *ax25_route_list;
 static DEFINE_RWLOCK(ax25_route_lock);
 
-static ax25_route *ax25_get_route(ax25_address *, struct net_device *);
-
 void ax25_rt_device_down(struct net_device *dev)
 {
 	ax25_route *s, *t, *ax25_rt;
@@ -115,7 +113,7 @@ static int ax25_rt_add(struct ax25_routes_struct *route)
 		return -ENOMEM;
 	}
 
-	atomic_set(&ax25_rt->ref, 0);
+	atomic_set(&ax25_rt->refcount, 1);
 	ax25_rt->callsign     = route->dest_addr;
 	ax25_rt->dev          = ax25_dev->dev;
 	ax25_rt->digipeat     = NULL;
@@ -140,23 +138,10 @@ static int ax25_rt_add(struct ax25_routes_struct *route)
 	return 0;
 }
 
-static void ax25_rt_destroy(ax25_route *ax25_rt)
+void __ax25_put_route(ax25_route *ax25_rt)
 {
-	if (atomic_read(&ax25_rt->ref) == 0) {
-		kfree(ax25_rt->digipeat);
-		kfree(ax25_rt);
-		return;
-	}
-
-	/*
-	 * Uh...  Route is still in use; we can't yet destroy it.  Retry later.
-	 */
-	init_timer(&ax25_rt->timer);
-	ax25_rt->timer.data	= (unsigned long) ax25_rt;
-	ax25_rt->timer.function	= (void *) ax25_rt_destroy;
-	ax25_rt->timer.expires	= jiffies + 5 * HZ;
-
-	add_timer(&ax25_rt->timer);
+	kfree(ax25_rt->digipeat);
+	kfree(ax25_rt);
 }
 
 static int ax25_rt_del(struct ax25_routes_struct *route)
@@ -177,12 +162,12 @@ static int ax25_rt_del(struct ax25_routes_struct *route)
 		    ax25cmp(&route->dest_addr, &s->callsign) == 0) {
 			if (ax25_route_list == s) {
 				ax25_route_list = s->next;
-				ax25_rt_destroy(s);
+				ax25_put_route(s);
 			} else {
 				for (t = ax25_route_list; t != NULL; t = t->next) {
 					if (t->next == s) {
 						t->next = s->next;
-						ax25_rt_destroy(s);
+						ax25_put_route(s);
 						break;
 					}
 				}
@@ -362,7 +347,7 @@ struct file_operations ax25_route_fops = {
  *
  *	Only routes with a reference count of zero can be destroyed.
  */
-static ax25_route *ax25_get_route(ax25_address *addr, struct net_device *dev)
+ax25_route *ax25_get_route(ax25_address *addr, struct net_device *dev)
 {
 	ax25_route *ax25_spe_rt = NULL;
 	ax25_route *ax25_def_rt = NULL;
@@ -392,7 +377,7 @@ static ax25_route *ax25_get_route(ax25_address *addr, struct net_device *dev)
 		ax25_rt = ax25_spe_rt;
 
 	if (ax25_rt != NULL)
-		atomic_inc(&ax25_rt->ref);
+		ax25_hold_route(ax25_rt);
 
 	read_unlock(&ax25_route_lock);
 
@@ -467,24 +452,6 @@ put:
 	return 0;
 }
 
-ax25_route *ax25_rt_find_route(ax25_route * route, ax25_address *addr,
-	struct net_device *dev)
-{
-	ax25_route *ax25_rt;
-
-	if ((ax25_rt = ax25_get_route(addr, dev)))
-		return ax25_rt;
-
-	route->next     = NULL;
-	atomic_set(&route->ref, 1);
-	route->callsign = *addr;
-	route->dev      = dev;
-	route->digipeat = NULL;
-	route->ip_mode  = ' ';
-
-	return route;
-}
-
 struct sk_buff *ax25_rt_build_path(struct sk_buff *skb, ax25_address *src,
 	ax25_address *dest, ax25_digi *digi)
 {
diff --git a/net/bluetooth/af_bluetooth.c b/net/bluetooth/af_bluetooth.c
index 51f867062e1..788ea7a2b74 100644
--- a/net/bluetooth/af_bluetooth.c
+++ b/net/bluetooth/af_bluetooth.c
@@ -48,7 +48,7 @@
 #define BT_DBG(D...)
 #endif
 
-#define VERSION "2.8"
+#define VERSION "2.10"
 
 /* Bluetooth sockets */
 #define BT_MAX_PROTO	8
@@ -307,13 +307,21 @@ static struct net_proto_family bt_sock_family_ops = {
 
 static int __init bt_init(void)
 {
+	int err;
+
 	BT_INFO("Core ver %s", VERSION);
 
-	sock_register(&bt_sock_family_ops);
+	err = bt_sysfs_init();
+	if (err < 0)
+		return err;
 
-	BT_INFO("HCI device and connection manager initialized");
+	err = sock_register(&bt_sock_family_ops);
+	if (err < 0) {
+		bt_sysfs_cleanup();
+		return err;
+	}
 
-	bt_sysfs_init();
+	BT_INFO("HCI device and connection manager initialized");
 
 	hci_sock_init();
 
@@ -324,9 +332,9 @@ static void __exit bt_exit(void)
 {
 	hci_sock_cleanup();
 
-	bt_sysfs_cleanup();
-
 	sock_unregister(PF_BLUETOOTH);
+
+	bt_sysfs_cleanup();
 }
 
 subsys_initcall(bt_init);
diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index 5c0c2b1ef34..420ed4d7e57 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -115,8 +115,8 @@ void hci_add_sco(struct hci_conn *conn, __u16 handle)
 
 static void hci_conn_timeout(unsigned long arg)
 {
-	struct hci_conn *conn = (void *)arg;
-	struct hci_dev  *hdev = conn->hdev;
+	struct hci_conn *conn = (void *) arg;
+	struct hci_dev *hdev = conn->hdev;
 
 	BT_DBG("conn %p state %d", conn, conn->state);
 
@@ -132,11 +132,13 @@ static void hci_conn_timeout(unsigned long arg)
 	return;
 }
 
-static void hci_conn_init_timer(struct hci_conn *conn)
+static void hci_conn_idle(unsigned long arg)
 {
-	init_timer(&conn->timer);
-	conn->timer.function = hci_conn_timeout;
-	conn->timer.data = (unsigned long)conn;
+	struct hci_conn *conn = (void *) arg;
+
+	BT_DBG("conn %p mode %d", conn, conn->mode);
+
+	hci_conn_enter_sniff_mode(conn);
 }
 
 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst)
@@ -145,17 +147,27 @@ struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst)
 
 	BT_DBG("%s dst %s", hdev->name, batostr(dst));
 
-	if (!(conn = kmalloc(sizeof(struct hci_conn), GFP_ATOMIC)))
+	conn = kzalloc(sizeof(struct hci_conn), GFP_ATOMIC);
+	if (!conn)
 		return NULL;
-	memset(conn, 0, sizeof(struct hci_conn));
 
 	bacpy(&conn->dst, dst);
-	conn->type   = type;
 	conn->hdev   = hdev;
+	conn->type   = type;
+	conn->mode   = HCI_CM_ACTIVE;
 	conn->state  = BT_OPEN;
 
+	conn->power_save = 1;
+
 	skb_queue_head_init(&conn->data_q);
-	hci_conn_init_timer(conn);
+
+	init_timer(&conn->disc_timer);
+	conn->disc_timer.function = hci_conn_timeout;
+	conn->disc_timer.data = (unsigned long) conn;
+
+	init_timer(&conn->idle_timer);
+	conn->idle_timer.function = hci_conn_idle;
+	conn->idle_timer.data = (unsigned long) conn;
 
 	atomic_set(&conn->refcnt, 0);
 
@@ -178,7 +190,9 @@ int hci_conn_del(struct hci_conn *conn)
 
 	BT_DBG("%s conn %p handle %d", hdev->name, conn, conn->handle);
 
-	hci_conn_del_timer(conn);
+	del_timer(&conn->idle_timer);
+
+	del_timer(&conn->disc_timer);
 
 	if (conn->type == SCO_LINK) {
 		struct hci_conn *acl = conn->link;
@@ -364,6 +378,70 @@ int hci_conn_switch_role(struct hci_conn *conn, uint8_t role)
 }
 EXPORT_SYMBOL(hci_conn_switch_role);
 
+/* Enter active mode */
+void hci_conn_enter_active_mode(struct hci_conn *conn)
+{
+	struct hci_dev *hdev = conn->hdev;
+
+	BT_DBG("conn %p mode %d", conn, conn->mode);
+
+	if (test_bit(HCI_RAW, &hdev->flags))
+		return;
+
+	if (conn->mode != HCI_CM_SNIFF || !conn->power_save)
+		goto timer;
+
+	if (!test_and_set_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->pend)) {
+		struct hci_cp_exit_sniff_mode cp;
+		cp.handle = __cpu_to_le16(conn->handle);
+		hci_send_cmd(hdev, OGF_LINK_POLICY,
+				OCF_EXIT_SNIFF_MODE, sizeof(cp), &cp);
+	}
+
+timer:
+	if (hdev->idle_timeout > 0)
+		mod_timer(&conn->idle_timer,
+			jiffies + msecs_to_jiffies(hdev->idle_timeout));
+}
+
+/* Enter sniff mode */
+void hci_conn_enter_sniff_mode(struct hci_conn *conn)
+{
+	struct hci_dev *hdev = conn->hdev;
+
+	BT_DBG("conn %p mode %d", conn, conn->mode);
+
+	if (test_bit(HCI_RAW, &hdev->flags))
+		return;
+
+	if (!lmp_sniff_capable(hdev) || !lmp_sniff_capable(conn))
+		return;
+
+	if (conn->mode != HCI_CM_ACTIVE || !(conn->link_policy & HCI_LP_SNIFF))
+		return;
+
+	if (lmp_sniffsubr_capable(hdev) && lmp_sniffsubr_capable(conn)) {
+		struct hci_cp_sniff_subrate cp;
+		cp.handle             = __cpu_to_le16(conn->handle);
+		cp.max_latency        = __constant_cpu_to_le16(0);
+		cp.min_remote_timeout = __constant_cpu_to_le16(0);
+		cp.min_local_timeout  = __constant_cpu_to_le16(0);
+		hci_send_cmd(hdev, OGF_LINK_POLICY,
+				OCF_SNIFF_SUBRATE, sizeof(cp), &cp);
+	}
+
+	if (!test_and_set_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->pend)) {
+		struct hci_cp_sniff_mode cp;
+		cp.handle       = __cpu_to_le16(conn->handle);
+		cp.max_interval = __cpu_to_le16(hdev->sniff_max_interval);
+		cp.min_interval = __cpu_to_le16(hdev->sniff_min_interval);
+		cp.attempt      = __constant_cpu_to_le16(4);
+		cp.timeout      = __constant_cpu_to_le16(1);
+		hci_send_cmd(hdev, OGF_LINK_POLICY,
+				OCF_SNIFF_MODE, sizeof(cp), &cp);
+	}
+}
+
 /* Drop all connection on the device */
 void hci_conn_hash_flush(struct hci_dev *hdev)
 {
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index f67240beb0d..54e8e5ea215 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -411,7 +411,7 @@ int hci_inquiry(void __user *arg)
 	}
 	hci_dev_unlock_bh(hdev);
 
-	timeo = ir.length * 2 * HZ;
+	timeo = ir.length * msecs_to_jiffies(2000);
 	if (do_inquiry && (err = hci_request(hdev, hci_inq_req, (unsigned long)&ir, timeo)) < 0)
 		goto done;
 
@@ -479,7 +479,8 @@ int hci_dev_open(__u16 dev)
 		set_bit(HCI_INIT, &hdev->flags);
 
 		//__hci_request(hdev, hci_reset_req, 0, HZ);
-		ret = __hci_request(hdev, hci_init_req, 0, HCI_INIT_TIMEOUT);
+		ret = __hci_request(hdev, hci_init_req, 0,
+					msecs_to_jiffies(HCI_INIT_TIMEOUT));
 
 		clear_bit(HCI_INIT, &hdev->flags);
 	}
@@ -546,7 +547,8 @@ static int hci_dev_do_close(struct hci_dev *hdev)
 	atomic_set(&hdev->cmd_cnt, 1);
 	if (!test_bit(HCI_RAW, &hdev->flags)) {
 		set_bit(HCI_INIT, &hdev->flags);
-		__hci_request(hdev, hci_reset_req, 0, HZ/4);
+		__hci_request(hdev, hci_reset_req, 0,
+					msecs_to_jiffies(250));
 		clear_bit(HCI_INIT, &hdev->flags);
 	}
 
@@ -619,7 +621,8 @@ int hci_dev_reset(__u16 dev)
 	hdev->acl_cnt = 0; hdev->sco_cnt = 0;
 
 	if (!test_bit(HCI_RAW, &hdev->flags))
-		ret = __hci_request(hdev, hci_reset_req, 0, HCI_INIT_TIMEOUT);
+		ret = __hci_request(hdev, hci_reset_req, 0,
+					msecs_to_jiffies(HCI_INIT_TIMEOUT));
 
 done:
 	tasklet_enable(&hdev->tx_task);
@@ -657,7 +660,8 @@ int hci_dev_cmd(unsigned int cmd, void __user *arg)
 
 	switch (cmd) {
 	case HCISETAUTH:
-		err = hci_request(hdev, hci_auth_req, dr.dev_opt, HCI_INIT_TIMEOUT);
+		err = hci_request(hdev, hci_auth_req, dr.dev_opt,
+					msecs_to_jiffies(HCI_INIT_TIMEOUT));
 		break;
 
 	case HCISETENCRYPT:
@@ -668,18 +672,19 @@ int hci_dev_cmd(unsigned int cmd, void __user *arg)
 
 		if (!test_bit(HCI_AUTH, &hdev->flags)) {
 			/* Auth must be enabled first */
-			err = hci_request(hdev, hci_auth_req,
-					dr.dev_opt, HCI_INIT_TIMEOUT);
+			err = hci_request(hdev, hci_auth_req, dr.dev_opt,
+					msecs_to_jiffies(HCI_INIT_TIMEOUT));
 			if (err)
 				break;
 		}
 
-		err = hci_request(hdev, hci_encrypt_req,
-					dr.dev_opt, HCI_INIT_TIMEOUT);
+		err = hci_request(hdev, hci_encrypt_req, dr.dev_opt,
+					msecs_to_jiffies(HCI_INIT_TIMEOUT));
 		break;
 
 	case HCISETSCAN:
-		err = hci_request(hdev, hci_scan_req, dr.dev_opt, HCI_INIT_TIMEOUT);
+		err = hci_request(hdev, hci_scan_req, dr.dev_opt,
+					msecs_to_jiffies(HCI_INIT_TIMEOUT));
 		break;
 
 	case HCISETPTYPE:
@@ -812,8 +817,8 @@ void hci_free_dev(struct hci_dev *hdev)
 {
 	skb_queue_purge(&hdev->driver_init);
 
-	/* will free via class release */
-	class_device_put(&hdev->class_dev);
+	/* will free via device release */
+	put_device(&hdev->dev);
 }
 EXPORT_SYMBOL(hci_free_dev);
 
@@ -848,6 +853,10 @@ int hci_register_dev(struct hci_dev *hdev)
 	hdev->pkt_type  = (HCI_DM1 | HCI_DH1 | HCI_HV1);
 	hdev->link_mode = (HCI_LM_ACCEPT);
 
+	hdev->idle_timeout = 0;
+	hdev->sniff_max_interval = 800;
+	hdev->sniff_min_interval = 80;
+
 	tasklet_init(&hdev->cmd_task, hci_cmd_task,(unsigned long) hdev);
 	tasklet_init(&hdev->rx_task, hci_rx_task, (unsigned long) hdev);
 	tasklet_init(&hdev->tx_task, hci_tx_task, (unsigned long) hdev);
@@ -1220,6 +1229,9 @@ static inline void hci_sched_acl(struct hci_dev *hdev)
 	while (hdev->acl_cnt && (conn = hci_low_sent(hdev, ACL_LINK, &quote))) {
 		while (quote-- && (skb = skb_dequeue(&conn->data_q))) {
 			BT_DBG("skb %p len %d", skb, skb->len);
+
+			hci_conn_enter_active_mode(conn);
+
 			hci_send_frame(skb);
 			hdev->acl_last_tx = jiffies;
 
@@ -1298,6 +1310,8 @@ static inline void hci_acldata_packet(struct hci_dev *hdev, struct sk_buff *skb)
 	if (conn) {
 		register struct hci_proto *hp;
 
+		hci_conn_enter_active_mode(conn);
+
 		/* Send to upper protocol */
 		if ((hp = hci_proto[HCI_PROTO_L2CAP]) && hp->recv_acldata) {
 			hp->recv_acldata(conn, skb, flags);
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 618bacee1b1..3896dabab11 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -83,6 +83,8 @@ static void hci_cc_link_policy(struct hci_dev *hdev, __u16 ocf, struct sk_buff *
 {
 	struct hci_conn *conn;
 	struct hci_rp_role_discovery *rd;
+	struct hci_rp_write_link_policy *lp;
+	void *sent;
 
 	BT_DBG("%s ocf 0x%x", hdev->name, ocf);
 
@@ -106,6 +108,27 @@ static void hci_cc_link_policy(struct hci_dev *hdev, __u16 ocf, struct sk_buff *
 		hci_dev_unlock(hdev);
 		break;
 
+	case OCF_WRITE_LINK_POLICY:
+		sent = hci_sent_cmd_data(hdev, OGF_LINK_POLICY, OCF_WRITE_LINK_POLICY);
+		if (!sent)
+			break;
+
+		lp = (struct hci_rp_write_link_policy *) skb->data;
+
+		if (lp->status)
+			break;
+
+		hci_dev_lock(hdev);
+
+		conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(lp->handle));
+		if (conn) {
+			__le16 policy = get_unaligned((__le16 *) (sent + 2));
+			conn->link_policy = __le16_to_cpu(policy);
+		}
+
+		hci_dev_unlock(hdev);
+		break;
+
 	default:
 		BT_DBG("%s: Command complete: ogf LINK_POLICY ocf %x", 
 				hdev->name, ocf);
@@ -274,7 +297,7 @@ static void hci_cc_host_ctl(struct hci_dev *hdev, __u16 ocf, struct sk_buff *skb
 /* Command Complete OGF INFO_PARAM  */
 static void hci_cc_info_param(struct hci_dev *hdev, __u16 ocf, struct sk_buff *skb)
 {
-	struct hci_rp_read_loc_features *lf;
+	struct hci_rp_read_local_features *lf;
 	struct hci_rp_read_buffer_size *bs;
 	struct hci_rp_read_bd_addr *ba;
 
@@ -282,7 +305,7 @@ static void hci_cc_info_param(struct hci_dev *hdev, __u16 ocf, struct sk_buff *s
 
 	switch (ocf) {
 	case OCF_READ_LOCAL_FEATURES:
-		lf = (struct hci_rp_read_loc_features *) skb->data;
+		lf = (struct hci_rp_read_local_features *) skb->data;
 
 		if (lf->status) {
 			BT_DBG("%s READ_LOCAL_FEATURES failed %d", hdev->name, lf->status);
@@ -319,9 +342,17 @@ static void hci_cc_info_param(struct hci_dev *hdev, __u16 ocf, struct sk_buff *s
 		}
 
 		hdev->acl_mtu  = __le16_to_cpu(bs->acl_mtu);
-		hdev->sco_mtu  = bs->sco_mtu ? bs->sco_mtu : 64;
-		hdev->acl_pkts = hdev->acl_cnt = __le16_to_cpu(bs->acl_max_pkt);
-		hdev->sco_pkts = hdev->sco_cnt = __le16_to_cpu(bs->sco_max_pkt);
+		hdev->sco_mtu  = bs->sco_mtu;
+		hdev->acl_pkts = __le16_to_cpu(bs->acl_max_pkt);
+		hdev->sco_pkts = __le16_to_cpu(bs->sco_max_pkt);
+
+		if (test_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks)) {
+			hdev->sco_mtu  = 64;
+			hdev->sco_pkts = 8;
+		}
+
+		hdev->acl_cnt = hdev->acl_pkts;
+		hdev->sco_cnt = hdev->sco_pkts;
 
 		BT_DBG("%s mtu: acl %d, sco %d max_pkt: acl %d, sco %d", hdev->name,
 			hdev->acl_mtu, hdev->sco_mtu, hdev->acl_pkts, hdev->sco_pkts);
@@ -439,8 +470,46 @@ static void hci_cs_link_policy(struct hci_dev *hdev, __u16 ocf, __u8 status)
 	BT_DBG("%s ocf 0x%x", hdev->name, ocf);
 
 	switch (ocf) {
+	case OCF_SNIFF_MODE:
+		if (status) {
+			struct hci_conn *conn;
+			struct hci_cp_sniff_mode *cp = hci_sent_cmd_data(hdev, OGF_LINK_POLICY, OCF_SNIFF_MODE);
+
+			if (!cp)
+				break;
+
+			hci_dev_lock(hdev);
+
+			conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
+			if (conn) {
+				clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->pend);
+			}
+
+			hci_dev_unlock(hdev);
+		}
+		break;
+
+	case OCF_EXIT_SNIFF_MODE:
+		if (status) {
+			struct hci_conn *conn;
+			struct hci_cp_exit_sniff_mode *cp = hci_sent_cmd_data(hdev, OGF_LINK_POLICY, OCF_EXIT_SNIFF_MODE);
+
+			if (!cp)
+				break;
+
+			hci_dev_lock(hdev);
+
+			conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
+			if (conn) {
+				clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->pend);
+			}
+
+			hci_dev_unlock(hdev);
+		}
+		break;
+
 	default:
-		BT_DBG("%s Command status: ogf HOST_POLICY ocf %x", hdev->name, ocf);
+		BT_DBG("%s Command status: ogf LINK_POLICY ocf %x", hdev->name, ocf);
 		break;
 	}
 }
@@ -622,14 +691,16 @@ static inline void hci_conn_request_evt(struct hci_dev *hdev, struct sk_buff *sk
 		else
 			cp.role = 0x01; /* Remain slave */
 
-		hci_send_cmd(hdev, OGF_LINK_CTL, OCF_ACCEPT_CONN_REQ, sizeof(cp), &cp);
+		hci_send_cmd(hdev, OGF_LINK_CTL,
+				OCF_ACCEPT_CONN_REQ, sizeof(cp), &cp);
 	} else {
 		/* Connection rejected */
 		struct hci_cp_reject_conn_req cp;
 
 		bacpy(&cp.bdaddr, &ev->bdaddr);
 		cp.reason = 0x0f;
-		hci_send_cmd(hdev, OGF_LINK_CTL, OCF_REJECT_CONN_REQ, sizeof(cp), &cp);
+		hci_send_cmd(hdev, OGF_LINK_CTL,
+				OCF_REJECT_CONN_REQ, sizeof(cp), &cp);
 	}
 }
 
@@ -637,7 +708,7 @@ static inline void hci_conn_request_evt(struct hci_dev *hdev, struct sk_buff *sk
 static inline void hci_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	struct hci_ev_conn_complete *ev = (struct hci_ev_conn_complete *) skb->data;
-	struct hci_conn *conn = NULL;
+	struct hci_conn *conn;
 
 	BT_DBG("%s", hdev->name);
 
@@ -659,12 +730,21 @@ static inline void hci_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *s
 		if (test_bit(HCI_ENCRYPT, &hdev->flags))
 			conn->link_mode |= HCI_LM_ENCRYPT;
 
+		/* Get remote features */
+		if (conn->type == ACL_LINK) {
+			struct hci_cp_read_remote_features cp;
+			cp.handle = ev->handle;
+			hci_send_cmd(hdev, OGF_LINK_CTL,
+				OCF_READ_REMOTE_FEATURES, sizeof(cp), &cp);
+		}
+
 		/* Set link policy */
 		if (conn->type == ACL_LINK && hdev->link_policy) {
 			struct hci_cp_write_link_policy cp;
 			cp.handle = ev->handle;
 			cp.policy = __cpu_to_le16(hdev->link_policy);
-			hci_send_cmd(hdev, OGF_LINK_POLICY, OCF_WRITE_LINK_POLICY, sizeof(cp), &cp);
+			hci_send_cmd(hdev, OGF_LINK_POLICY,
+				OCF_WRITE_LINK_POLICY, sizeof(cp), &cp);
 		}
 
 		/* Set packet type for incoming connection */
@@ -675,7 +755,8 @@ static inline void hci_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *s
 				__cpu_to_le16(hdev->pkt_type & ACL_PTYPE_MASK):
 				__cpu_to_le16(hdev->pkt_type & SCO_PTYPE_MASK);
 
-			hci_send_cmd(hdev, OGF_LINK_CTL, OCF_CHANGE_CONN_PTYPE, sizeof(cp), &cp);
+			hci_send_cmd(hdev, OGF_LINK_CTL,
+				OCF_CHANGE_CONN_PTYPE, sizeof(cp), &cp);
 		}
 	} else
 		conn->state = BT_CLOSED;
@@ -703,8 +784,7 @@ static inline void hci_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *s
 static inline void hci_disconn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	struct hci_ev_disconn_complete *ev = (struct hci_ev_disconn_complete *) skb->data;
-	struct hci_conn *conn = NULL;
-	__u16 handle = __le16_to_cpu(ev->handle);
+	struct hci_conn *conn;
 
 	BT_DBG("%s status %d", hdev->name, ev->status);
 
@@ -713,7 +793,7 @@ static inline void hci_disconn_complete_evt(struct hci_dev *hdev, struct sk_buff
 
 	hci_dev_lock(hdev);
 
-	conn = hci_conn_hash_lookup_handle(hdev, handle);
+	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
 	if (conn) {
 		conn->state = BT_CLOSED;
 		hci_proto_disconn_ind(conn, ev->reason);
@@ -770,7 +850,7 @@ static inline void hci_num_comp_pkts_evt(struct hci_dev *hdev, struct sk_buff *s
 static inline void hci_role_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	struct hci_ev_role_change *ev = (struct hci_ev_role_change *) skb->data;
-	struct hci_conn *conn = NULL;
+	struct hci_conn *conn;
 
 	BT_DBG("%s status %d", hdev->name, ev->status);
 
@@ -793,18 +873,43 @@ static inline void hci_role_change_evt(struct hci_dev *hdev, struct sk_buff *skb
 	hci_dev_unlock(hdev);
 }
 
+/* Mode Change */
+static inline void hci_mode_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct hci_ev_mode_change *ev = (struct hci_ev_mode_change *) skb->data;
+	struct hci_conn *conn;
+
+	BT_DBG("%s status %d", hdev->name, ev->status);
+
+	hci_dev_lock(hdev);
+
+	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
+	if (conn) {
+		conn->mode = ev->mode;
+		conn->interval = __le16_to_cpu(ev->interval);
+
+		if (!test_and_clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->pend)) {
+			if (conn->mode == HCI_CM_ACTIVE)
+				conn->power_save = 1;
+			else
+				conn->power_save = 0;
+		}
+	}
+
+	hci_dev_unlock(hdev);
+}
+
 /* Authentication Complete */
 static inline void hci_auth_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	struct hci_ev_auth_complete *ev = (struct hci_ev_auth_complete *) skb->data;
-	struct hci_conn *conn = NULL;
-	__u16 handle = __le16_to_cpu(ev->handle);
+	struct hci_conn *conn;
 
 	BT_DBG("%s status %d", hdev->name, ev->status);
 
 	hci_dev_lock(hdev);
 
-	conn = hci_conn_hash_lookup_handle(hdev, handle);
+	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
 	if (conn) {
 		if (!ev->status)
 			conn->link_mode |= HCI_LM_AUTH;
@@ -819,8 +924,7 @@ static inline void hci_auth_complete_evt(struct hci_dev *hdev, struct sk_buff *s
 				cp.handle  = __cpu_to_le16(conn->handle);
 				cp.encrypt = 1;
 				hci_send_cmd(conn->hdev, OGF_LINK_CTL,
-						OCF_SET_CONN_ENCRYPT,
-						sizeof(cp), &cp);
+					OCF_SET_CONN_ENCRYPT, sizeof(cp), &cp);
 			} else {
 				clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend);
 				hci_encrypt_cfm(conn, ev->status, 0x00);
@@ -835,14 +939,13 @@ static inline void hci_auth_complete_evt(struct hci_dev *hdev, struct sk_buff *s
 static inline void hci_encrypt_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	struct hci_ev_encrypt_change *ev = (struct hci_ev_encrypt_change *) skb->data;
-	struct hci_conn *conn = NULL;
-	__u16 handle = __le16_to_cpu(ev->handle);
+	struct hci_conn *conn;
 
 	BT_DBG("%s status %d", hdev->name, ev->status);
 
 	hci_dev_lock(hdev);
 
-	conn = hci_conn_hash_lookup_handle(hdev, handle);
+	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
 	if (conn) {
 		if (!ev->status) {
 			if (ev->encrypt)
@@ -863,14 +966,13 @@ static inline void hci_encrypt_change_evt(struct hci_dev *hdev, struct sk_buff *
 static inline void hci_change_conn_link_key_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	struct hci_ev_change_conn_link_key_complete *ev = (struct hci_ev_change_conn_link_key_complete *) skb->data;
-	struct hci_conn *conn = NULL;
-	__u16 handle = __le16_to_cpu(ev->handle);
+	struct hci_conn *conn;
 
 	BT_DBG("%s status %d", hdev->name, ev->status);
 
 	hci_dev_lock(hdev);
 
-	conn = hci_conn_hash_lookup_handle(hdev, handle);
+	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
 	if (conn) {
 		if (!ev->status)
 			conn->link_mode |= HCI_LM_SECURE;
@@ -898,18 +1000,35 @@ static inline void hci_link_key_notify_evt(struct hci_dev *hdev, struct sk_buff
 {
 }
 
+/* Remote Features */
+static inline void hci_remote_features_evt(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct hci_ev_remote_features *ev = (struct hci_ev_remote_features *) skb->data;
+	struct hci_conn *conn;
+
+	BT_DBG("%s status %d", hdev->name, ev->status);
+
+	hci_dev_lock(hdev);
+
+	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
+	if (conn && !ev->status) {
+		memcpy(conn->features, ev->features, sizeof(conn->features));
+	}
+
+	hci_dev_unlock(hdev);
+}
+
 /* Clock Offset */
 static inline void hci_clock_offset_evt(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	struct hci_ev_clock_offset *ev = (struct hci_ev_clock_offset *) skb->data;
-	struct hci_conn *conn = NULL;
-	__u16 handle = __le16_to_cpu(ev->handle);
+	struct hci_conn *conn;
 
 	BT_DBG("%s status %d", hdev->name, ev->status);
 
 	hci_dev_lock(hdev);
 
-	conn = hci_conn_hash_lookup_handle(hdev, handle);
+	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
 	if (conn && !ev->status) {
 		struct inquiry_entry *ie;
 
@@ -940,6 +1059,23 @@ static inline void hci_pscan_rep_mode_evt(struct hci_dev *hdev, struct sk_buff *
 	hci_dev_unlock(hdev);
 }
 
+/* Sniff Subrate */
+static inline void hci_sniff_subrate_evt(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct hci_ev_sniff_subrate *ev = (struct hci_ev_sniff_subrate *) skb->data;
+	struct hci_conn *conn;
+
+	BT_DBG("%s status %d", hdev->name, ev->status);
+
+	hci_dev_lock(hdev);
+
+	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
+	if (conn) {
+	}
+
+	hci_dev_unlock(hdev);
+}
+
 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	struct hci_event_hdr *hdr = (struct hci_event_hdr *) skb->data;
@@ -988,6 +1124,10 @@ void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb)
 		hci_role_change_evt(hdev, skb);
 		break;
 
+	case HCI_EV_MODE_CHANGE:
+		hci_mode_change_evt(hdev, skb);
+		break;
+
 	case HCI_EV_AUTH_COMPLETE:
 		hci_auth_complete_evt(hdev, skb);
 		break;
@@ -1012,6 +1152,10 @@ void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb)
 		hci_link_key_notify_evt(hdev, skb);
 		break;
 
+	case HCI_EV_REMOTE_FEATURES:
+		hci_remote_features_evt(hdev, skb);
+		break;
+
 	case HCI_EV_CLOCK_OFFSET:
 		hci_clock_offset_evt(hdev, skb);
 		break;
@@ -1020,6 +1164,10 @@ void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb)
 		hci_pscan_rep_mode_evt(hdev, skb);
 		break;
 
+	case HCI_EV_SNIFF_SUBRATE:
+		hci_sniff_subrate_evt(hdev, skb);
+		break;
+
 	case HCI_EV_CMD_STATUS:
 		cs = (struct hci_ev_cmd_status *) skb->data;
 		skb_pull(skb, sizeof(cs));
diff --git a/net/bluetooth/hci_sysfs.c b/net/bluetooth/hci_sysfs.c
index 19b234c86f3..3987d167f04 100644
--- a/net/bluetooth/hci_sysfs.c
+++ b/net/bluetooth/hci_sysfs.c
@@ -3,6 +3,8 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 
+#include <linux/platform_device.h>
+
 #include <net/bluetooth/bluetooth.h>
 #include <net/bluetooth/hci_core.h>
 
@@ -11,35 +13,35 @@
 #define BT_DBG(D...)
 #endif
 
-static ssize_t show_name(struct class_device *cdev, char *buf)
+static ssize_t show_name(struct device *dev, struct device_attribute *attr, char *buf)
 {
-	struct hci_dev *hdev = class_get_devdata(cdev);
+	struct hci_dev *hdev = dev_get_drvdata(dev);
 	return sprintf(buf, "%s\n", hdev->name);
 }
 
-static ssize_t show_type(struct class_device *cdev, char *buf)
+static ssize_t show_type(struct device *dev, struct device_attribute *attr, char *buf)
 {
-	struct hci_dev *hdev = class_get_devdata(cdev);
+	struct hci_dev *hdev = dev_get_drvdata(dev);
 	return sprintf(buf, "%d\n", hdev->type);
 }
 
-static ssize_t show_address(struct class_device *cdev, char *buf)
+static ssize_t show_address(struct device *dev, struct device_attribute *attr, char *buf)
 {
-	struct hci_dev *hdev = class_get_devdata(cdev);
+	struct hci_dev *hdev = dev_get_drvdata(dev);
 	bdaddr_t bdaddr;
 	baswap(&bdaddr, &hdev->bdaddr);
 	return sprintf(buf, "%s\n", batostr(&bdaddr));
 }
 
-static ssize_t show_flags(struct class_device *cdev, char *buf)
+static ssize_t show_flags(struct device *dev, struct device_attribute *attr, char *buf)
 {
-	struct hci_dev *hdev = class_get_devdata(cdev);
+	struct hci_dev *hdev = dev_get_drvdata(dev);
 	return sprintf(buf, "0x%lx\n", hdev->flags);
 }
 
-static ssize_t show_inquiry_cache(struct class_device *cdev, char *buf)
+static ssize_t show_inquiry_cache(struct device *dev, struct device_attribute *attr, char *buf)
 {
-	struct hci_dev *hdev = class_get_devdata(cdev);
+	struct hci_dev *hdev = dev_get_drvdata(dev);
 	struct inquiry_cache *cache = &hdev->inq_cache;
 	struct inquiry_entry *e;
 	int n = 0;
@@ -61,94 +63,193 @@ static ssize_t show_inquiry_cache(struct class_device *cdev, char *buf)
 	return n;
 }
 
-static CLASS_DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
-static CLASS_DEVICE_ATTR(type, S_IRUGO, show_type, NULL);
-static CLASS_DEVICE_ATTR(address, S_IRUGO, show_address, NULL);
-static CLASS_DEVICE_ATTR(flags, S_IRUGO, show_flags, NULL);
-static CLASS_DEVICE_ATTR(inquiry_cache, S_IRUGO, show_inquiry_cache, NULL);
+static ssize_t show_idle_timeout(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct hci_dev *hdev = dev_get_drvdata(dev);
+	return sprintf(buf, "%d\n", hdev->idle_timeout);
+}
 
-static struct class_device_attribute *bt_attrs[] = {
-	&class_device_attr_name,
-	&class_device_attr_type,
-	&class_device_attr_address,
-	&class_device_attr_flags,
-	&class_device_attr_inquiry_cache,
-	NULL
-};
+static ssize_t store_idle_timeout(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+{
+	struct hci_dev *hdev = dev_get_drvdata(dev);
+	char *ptr;
+	__u32 val;
+
+	val = simple_strtoul(buf, &ptr, 10);
+	if (ptr == buf)
+		return -EINVAL;
 
-#ifdef CONFIG_HOTPLUG
-static int bt_uevent(struct class_device *cdev, char **envp, int num_envp, char *buf, int size)
+	if (val != 0 && (val < 500 || val > 3600000))
+		return -EINVAL;
+
+	hdev->idle_timeout = val;
+
+	return count;
+}
+
+static ssize_t show_sniff_max_interval(struct device *dev, struct device_attribute *attr, char *buf)
 {
-	struct hci_dev *hdev = class_get_devdata(cdev);
-	int n, i = 0;
+	struct hci_dev *hdev = dev_get_drvdata(dev);
+	return sprintf(buf, "%d\n", hdev->sniff_max_interval);
+}
 
-	envp[i++] = buf;
-	n = snprintf(buf, size, "INTERFACE=%s", hdev->name) + 1;
-	buf += n;
-	size -= n;
+static ssize_t store_sniff_max_interval(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+{
+	struct hci_dev *hdev = dev_get_drvdata(dev);
+	char *ptr;
+	__u16 val;
 
-	if ((size <= 0) || (i >= num_envp))
-		return -ENOMEM;
+	val = simple_strtoul(buf, &ptr, 10);
+	if (ptr == buf)
+		return -EINVAL;
 
-	envp[i] = NULL;
-	return 0;
+	if (val < 0x0002 || val > 0xFFFE || val % 2)
+		return -EINVAL;
+
+	if (val < hdev->sniff_min_interval)
+		return -EINVAL;
+
+	hdev->sniff_max_interval = val;
+
+	return count;
+}
+
+static ssize_t show_sniff_min_interval(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct hci_dev *hdev = dev_get_drvdata(dev);
+	return sprintf(buf, "%d\n", hdev->sniff_min_interval);
 }
-#endif
 
-static void bt_release(struct class_device *cdev)
+static ssize_t store_sniff_min_interval(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
 {
-	struct hci_dev *hdev = class_get_devdata(cdev);
+	struct hci_dev *hdev = dev_get_drvdata(dev);
+	char *ptr;
+	__u16 val;
 
-	kfree(hdev);
+	val = simple_strtoul(buf, &ptr, 10);
+	if (ptr == buf)
+		return -EINVAL;
+
+	if (val < 0x0002 || val > 0xFFFE || val % 2)
+		return -EINVAL;
+
+	if (val > hdev->sniff_max_interval)
+		return -EINVAL;
+
+	hdev->sniff_min_interval = val;
+
+	return count;
 }
 
-struct class bt_class = {
-	.name		= "bluetooth",
-	.release	= bt_release,
-#ifdef CONFIG_HOTPLUG
-	.uevent		= bt_uevent,
-#endif
+static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
+static DEVICE_ATTR(type, S_IRUGO, show_type, NULL);
+static DEVICE_ATTR(address, S_IRUGO, show_address, NULL);
+static DEVICE_ATTR(flags, S_IRUGO, show_flags, NULL);
+static DEVICE_ATTR(inquiry_cache, S_IRUGO, show_inquiry_cache, NULL);
+
+static DEVICE_ATTR(idle_timeout, S_IRUGO | S_IWUSR,
+				show_idle_timeout, store_idle_timeout);
+static DEVICE_ATTR(sniff_max_interval, S_IRUGO | S_IWUSR,
+				show_sniff_max_interval, store_sniff_max_interval);
+static DEVICE_ATTR(sniff_min_interval, S_IRUGO | S_IWUSR,
+				show_sniff_min_interval, store_sniff_min_interval);
+
+static struct device_attribute *bt_attrs[] = {
+	&dev_attr_name,
+	&dev_attr_type,
+	&dev_attr_address,
+	&dev_attr_flags,
+	&dev_attr_inquiry_cache,
+	&dev_attr_idle_timeout,
+	&dev_attr_sniff_max_interval,
+	&dev_attr_sniff_min_interval,
+	NULL
 };
 
+struct class *bt_class = NULL;
 EXPORT_SYMBOL_GPL(bt_class);
 
+static struct bus_type bt_bus = {
+	.name	= "bluetooth",
+};
+
+static struct platform_device *bt_platform;
+
+static void bt_release(struct device *dev)
+{
+	struct hci_dev *hdev = dev_get_drvdata(dev);
+	kfree(hdev);
+}
+
 int hci_register_sysfs(struct hci_dev *hdev)
 {
-	struct class_device *cdev = &hdev->class_dev;
+	struct device *dev = &hdev->dev;
 	unsigned int i;
 	int err;
 
 	BT_DBG("%p name %s type %d", hdev, hdev->name, hdev->type);
 
-	cdev->class = &bt_class;
-	class_set_devdata(cdev, hdev);
+	dev->class = bt_class;
+
+	if (hdev->parent)
+		dev->parent = hdev->parent;
+	else
+		dev->parent = &bt_platform->dev;
+
+	strlcpy(dev->bus_id, hdev->name, BUS_ID_SIZE);
+
+	dev->release = bt_release;
 
-	strlcpy(cdev->class_id, hdev->name, BUS_ID_SIZE);
-	err = class_device_register(cdev);
+	dev_set_drvdata(dev, hdev);
+
+	err = device_register(dev);
 	if (err < 0)
 		return err;
 
 	for (i = 0; bt_attrs[i]; i++)
-		class_device_create_file(cdev, bt_attrs[i]);
+		device_create_file(dev, bt_attrs[i]);
 
 	return 0;
 }
 
 void hci_unregister_sysfs(struct hci_dev *hdev)
 {
-	struct class_device * cdev = &hdev->class_dev;
+	struct device *dev = &hdev->dev;
 
 	BT_DBG("%p name %s type %d", hdev, hdev->name, hdev->type);
 
-	class_device_del(cdev);
+	device_del(dev);
 }
 
 int __init bt_sysfs_init(void)
 {
-	return class_register(&bt_class);
+	int err;
+
+	bt_platform = platform_device_register_simple("bluetooth", -1, NULL, 0);
+	if (IS_ERR(bt_platform))
+		return PTR_ERR(bt_platform);
+
+	err = bus_register(&bt_bus);
+	if (err < 0) {
+		platform_device_unregister(bt_platform);
+		return err;
+	}
+
+	bt_class = class_create(THIS_MODULE, "bluetooth");
+	if (IS_ERR(bt_class)) {
+		bus_unregister(&bt_bus);
+		platform_device_unregister(bt_platform);
+		return PTR_ERR(bt_class);
+	}
+
+	return 0;
 }
 
 void __exit bt_sysfs_cleanup(void)
 {
-	class_unregister(&bt_class);
+	class_destroy(bt_class);
+
+	bus_unregister(&bt_bus);
+
+	platform_device_unregister(bt_platform);
 }
diff --git a/net/bluetooth/l2cap.c b/net/bluetooth/l2cap.c
index 770101177da..eaaad658d11 100644
--- a/net/bluetooth/l2cap.c
+++ b/net/bluetooth/l2cap.c
@@ -63,11 +63,6 @@ static struct bt_sock_list l2cap_sk_list = {
 	.lock = RW_LOCK_UNLOCKED
 };
 
-static int l2cap_conn_del(struct hci_conn *conn, int err);
-
-static void __l2cap_chan_add(struct l2cap_conn *conn, struct sock *sk, struct sock *parent);
-static void l2cap_chan_del(struct sock *sk, int err);
-
 static void __l2cap_sock_close(struct sock *sk, int reason);
 static void l2cap_sock_close(struct sock *sk);
 static void l2cap_sock_kill(struct sock *sk);
@@ -109,24 +104,177 @@ static void l2cap_sock_init_timer(struct sock *sk)
 	sk->sk_timer.data = (unsigned long)sk;
 }
 
+/* ---- L2CAP channels ---- */
+static struct sock *__l2cap_get_chan_by_dcid(struct l2cap_chan_list *l, u16 cid)
+{
+	struct sock *s;
+	for (s = l->head; s; s = l2cap_pi(s)->next_c) {
+		if (l2cap_pi(s)->dcid == cid)
+			break;
+	}
+	return s;
+}
+
+static struct sock *__l2cap_get_chan_by_scid(struct l2cap_chan_list *l, u16 cid)
+{
+	struct sock *s;
+	for (s = l->head; s; s = l2cap_pi(s)->next_c) {
+		if (l2cap_pi(s)->scid == cid)
+			break;
+	}
+	return s;
+}
+
+/* Find channel with given SCID.
+ * Returns locked socket */
+static inline struct sock *l2cap_get_chan_by_scid(struct l2cap_chan_list *l, u16 cid)
+{
+	struct sock *s;
+	read_lock(&l->lock);
+	s = __l2cap_get_chan_by_scid(l, cid);
+	if (s) bh_lock_sock(s);
+	read_unlock(&l->lock);
+	return s;
+}
+
+static struct sock *__l2cap_get_chan_by_ident(struct l2cap_chan_list *l, u8 ident)
+{
+	struct sock *s;
+	for (s = l->head; s; s = l2cap_pi(s)->next_c) {
+		if (l2cap_pi(s)->ident == ident)
+			break;
+	}
+	return s;
+}
+
+static inline struct sock *l2cap_get_chan_by_ident(struct l2cap_chan_list *l, u8 ident)
+{
+	struct sock *s;
+	read_lock(&l->lock);
+	s = __l2cap_get_chan_by_ident(l, ident);
+	if (s) bh_lock_sock(s);
+	read_unlock(&l->lock);
+	return s;
+}
+
+static u16 l2cap_alloc_cid(struct l2cap_chan_list *l)
+{
+	u16 cid = 0x0040;
+
+	for (; cid < 0xffff; cid++) {
+		if(!__l2cap_get_chan_by_scid(l, cid))
+			return cid;
+	}
+
+	return 0;
+}
+
+static inline void __l2cap_chan_link(struct l2cap_chan_list *l, struct sock *sk)
+{
+	sock_hold(sk);
+
+	if (l->head)
+		l2cap_pi(l->head)->prev_c = sk;
+
+	l2cap_pi(sk)->next_c = l->head;
+	l2cap_pi(sk)->prev_c = NULL;
+	l->head = sk;
+}
+
+static inline void l2cap_chan_unlink(struct l2cap_chan_list *l, struct sock *sk)
+{
+	struct sock *next = l2cap_pi(sk)->next_c, *prev = l2cap_pi(sk)->prev_c;
+
+	write_lock(&l->lock);
+	if (sk == l->head)
+		l->head = next;
+
+	if (next)
+		l2cap_pi(next)->prev_c = prev;
+	if (prev)
+		l2cap_pi(prev)->next_c = next;
+	write_unlock(&l->lock);
+
+	__sock_put(sk);
+}
+
+static void __l2cap_chan_add(struct l2cap_conn *conn, struct sock *sk, struct sock *parent)
+{
+	struct l2cap_chan_list *l = &conn->chan_list;
+
+	BT_DBG("conn %p, psm 0x%2.2x, dcid 0x%4.4x", conn, l2cap_pi(sk)->psm, l2cap_pi(sk)->dcid);
+
+	l2cap_pi(sk)->conn = conn;
+
+	if (sk->sk_type == SOCK_SEQPACKET) {
+		/* Alloc CID for connection-oriented socket */
+		l2cap_pi(sk)->scid = l2cap_alloc_cid(l);
+	} else if (sk->sk_type == SOCK_DGRAM) {
+		/* Connectionless socket */
+		l2cap_pi(sk)->scid = 0x0002;
+		l2cap_pi(sk)->dcid = 0x0002;
+		l2cap_pi(sk)->omtu = L2CAP_DEFAULT_MTU;
+	} else {
+		/* Raw socket can send/recv signalling messages only */
+		l2cap_pi(sk)->scid = 0x0001;
+		l2cap_pi(sk)->dcid = 0x0001;
+		l2cap_pi(sk)->omtu = L2CAP_DEFAULT_MTU;
+	}
+
+	__l2cap_chan_link(l, sk);
+
+	if (parent)
+		bt_accept_enqueue(parent, sk);
+}
+
+/* Delete channel. 
+ * Must be called on the locked socket. */
+static void l2cap_chan_del(struct sock *sk, int err)
+{
+	struct l2cap_conn *conn = l2cap_pi(sk)->conn;
+	struct sock *parent = bt_sk(sk)->parent;
+
+	l2cap_sock_clear_timer(sk);
+
+	BT_DBG("sk %p, conn %p, err %d", sk, conn, err);
+
+	if (conn) { 
+		/* Unlink from channel list */
+		l2cap_chan_unlink(&conn->chan_list, sk);
+		l2cap_pi(sk)->conn = NULL;
+		hci_conn_put(conn->hcon);
+	}
+
+	sk->sk_state  = BT_CLOSED;
+	sock_set_flag(sk, SOCK_ZAPPED);
+
+	if (err)
+		sk->sk_err = err;
+
+	if (parent) {
+		bt_accept_unlink(sk);
+		parent->sk_data_ready(parent, 0);
+	} else
+		sk->sk_state_change(sk);
+}
+
 /* ---- L2CAP connections ---- */
 static struct l2cap_conn *l2cap_conn_add(struct hci_conn *hcon, u8 status)
 {
-	struct l2cap_conn *conn;
-
-	if ((conn = hcon->l2cap_data))
-		return conn;
+	struct l2cap_conn *conn = hcon->l2cap_data;
 
-	if (status)
+	if (conn || status)
 		return conn;
 
-	if (!(conn = kmalloc(sizeof(struct l2cap_conn), GFP_ATOMIC)))
+	conn = kzalloc(sizeof(struct l2cap_conn), GFP_ATOMIC);
+	if (!conn)
 		return NULL;
-	memset(conn, 0, sizeof(struct l2cap_conn));
 
 	hcon->l2cap_data = conn;
 	conn->hcon = hcon;
 
+	BT_DBG("hcon %p conn %p", hcon, conn);
+
 	conn->mtu = hcon->hdev->acl_mtu;
 	conn->src = &hcon->hdev->bdaddr;
 	conn->dst = &hcon->dst;
@@ -134,17 +282,16 @@ static struct l2cap_conn *l2cap_conn_add(struct hci_conn *hcon, u8 status)
 	spin_lock_init(&conn->lock);
 	rwlock_init(&conn->chan_list.lock);
 
-	BT_DBG("hcon %p conn %p", hcon, conn);
 	return conn;
 }
 
-static int l2cap_conn_del(struct hci_conn *hcon, int err)
+static void l2cap_conn_del(struct hci_conn *hcon, int err)
 {
-	struct l2cap_conn *conn;
+	struct l2cap_conn *conn = hcon->l2cap_data;
 	struct sock *sk;
 
-	if (!(conn = hcon->l2cap_data)) 
-		return 0;
+	if (!conn)
+		return;
 
 	BT_DBG("hcon %p conn %p, err %d", hcon, conn, err);
 
@@ -161,7 +308,6 @@ static int l2cap_conn_del(struct hci_conn *hcon, int err)
 
 	hcon->l2cap_data = NULL;
 	kfree(conn);
-	return 0;
 }
 
 static inline void l2cap_chan_add(struct l2cap_conn *conn, struct sock *sk, struct sock *parent)
@@ -925,160 +1071,6 @@ static int l2cap_sock_release(struct socket *sock)
 	return err;
 }
 
-/* ---- L2CAP channels ---- */
-static struct sock *__l2cap_get_chan_by_dcid(struct l2cap_chan_list *l, u16 cid)
-{
-	struct sock *s;
-	for (s = l->head; s; s = l2cap_pi(s)->next_c) {
-		if (l2cap_pi(s)->dcid == cid)
-			break;
-	}
-	return s;
-}
-
-static struct sock *__l2cap_get_chan_by_scid(struct l2cap_chan_list *l, u16 cid)
-{
-	struct sock *s;
-	for (s = l->head; s; s = l2cap_pi(s)->next_c) {
-		if (l2cap_pi(s)->scid == cid)
-			break;
-	}
-	return s;
-}
-
-/* Find channel with given SCID.
- * Returns locked socket */
-static inline struct sock *l2cap_get_chan_by_scid(struct l2cap_chan_list *l, u16 cid)
-{
-	struct sock *s;
-	read_lock(&l->lock);
-	s = __l2cap_get_chan_by_scid(l, cid);
-	if (s) bh_lock_sock(s);
-	read_unlock(&l->lock);
-	return s;
-}
-
-static struct sock *__l2cap_get_chan_by_ident(struct l2cap_chan_list *l, u8 ident)
-{
-	struct sock *s;
-	for (s = l->head; s; s = l2cap_pi(s)->next_c) {
-		if (l2cap_pi(s)->ident == ident)
-			break;
-	}
-	return s;
-}
-
-static inline struct sock *l2cap_get_chan_by_ident(struct l2cap_chan_list *l, u8 ident)
-{
-	struct sock *s;
-	read_lock(&l->lock);
-	s = __l2cap_get_chan_by_ident(l, ident);
-	if (s) bh_lock_sock(s);
-	read_unlock(&l->lock);
-	return s;
-}
-
-static u16 l2cap_alloc_cid(struct l2cap_chan_list *l)
-{
-	u16 cid = 0x0040;
-
-	for (; cid < 0xffff; cid++) {
-		if(!__l2cap_get_chan_by_scid(l, cid))
-			return cid;
-	}
-
-	return 0;
-}
-
-static inline void __l2cap_chan_link(struct l2cap_chan_list *l, struct sock *sk)
-{
-	sock_hold(sk);
-
-	if (l->head)
-		l2cap_pi(l->head)->prev_c = sk;
-
-	l2cap_pi(sk)->next_c = l->head;
-	l2cap_pi(sk)->prev_c = NULL;
-	l->head = sk;
-}
-
-static inline void l2cap_chan_unlink(struct l2cap_chan_list *l, struct sock *sk)
-{
-	struct sock *next = l2cap_pi(sk)->next_c, *prev = l2cap_pi(sk)->prev_c;
-
-	write_lock(&l->lock);
-	if (sk == l->head)
-		l->head = next;
-
-	if (next)
-		l2cap_pi(next)->prev_c = prev;
-	if (prev)
-		l2cap_pi(prev)->next_c = next;
-	write_unlock(&l->lock);
-
-	__sock_put(sk);
-}
-
-static void __l2cap_chan_add(struct l2cap_conn *conn, struct sock *sk, struct sock *parent)
-{
-	struct l2cap_chan_list *l = &conn->chan_list;
-
-	BT_DBG("conn %p, psm 0x%2.2x, dcid 0x%4.4x", conn, l2cap_pi(sk)->psm, l2cap_pi(sk)->dcid);
-
-	l2cap_pi(sk)->conn = conn;
-
-	if (sk->sk_type == SOCK_SEQPACKET) {
-		/* Alloc CID for connection-oriented socket */
-		l2cap_pi(sk)->scid = l2cap_alloc_cid(l);
-	} else if (sk->sk_type == SOCK_DGRAM) {
-		/* Connectionless socket */
-		l2cap_pi(sk)->scid = 0x0002;
-		l2cap_pi(sk)->dcid = 0x0002;
-		l2cap_pi(sk)->omtu = L2CAP_DEFAULT_MTU;
-	} else {
-		/* Raw socket can send/recv signalling messages only */
-		l2cap_pi(sk)->scid = 0x0001;
-		l2cap_pi(sk)->dcid = 0x0001;
-		l2cap_pi(sk)->omtu = L2CAP_DEFAULT_MTU;
-	}
-
-	__l2cap_chan_link(l, sk);
-
-	if (parent)
-		bt_accept_enqueue(parent, sk);
-}
-
-/* Delete channel. 
- * Must be called on the locked socket. */
-static void l2cap_chan_del(struct sock *sk, int err)
-{
-	struct l2cap_conn *conn = l2cap_pi(sk)->conn;
-	struct sock *parent = bt_sk(sk)->parent;
-
-	l2cap_sock_clear_timer(sk);
-
-	BT_DBG("sk %p, conn %p, err %d", sk, conn, err);
-
-	if (conn) { 
-		/* Unlink from channel list */
-		l2cap_chan_unlink(&conn->chan_list, sk);
-		l2cap_pi(sk)->conn = NULL;
-		hci_conn_put(conn->hcon);
-	}
-
-	sk->sk_state  = BT_CLOSED;
-	sock_set_flag(sk, SOCK_ZAPPED);
-
-	if (err)
-		sk->sk_err = err;
-
-	if (parent) {
-		bt_accept_unlink(sk);
-		parent->sk_data_ready(parent, 0);
-	} else
-		sk->sk_state_change(sk);
-}
-
 static void l2cap_conn_ready(struct l2cap_conn *conn)
 {
 	struct l2cap_chan_list *l = &conn->chan_list;
@@ -1834,7 +1826,9 @@ drop:
 	kfree_skb(skb);
 
 done:
-	if (sk) bh_unlock_sock(sk);
+	if (sk)
+		bh_unlock_sock(sk);
+
 	return 0;
 }
 
@@ -1925,18 +1919,18 @@ static int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type)
 
 static int l2cap_connect_cfm(struct hci_conn *hcon, u8 status)
 {
+	struct l2cap_conn *conn;
+
 	BT_DBG("hcon %p bdaddr %s status %d", hcon, batostr(&hcon->dst), status);
 
 	if (hcon->type != ACL_LINK)
 		return 0;
 
 	if (!status) {
-		struct l2cap_conn *conn;
-
 		conn = l2cap_conn_add(hcon, status);
 		if (conn)
 			l2cap_conn_ready(conn);
-	} else 
+	} else
 		l2cap_conn_del(hcon, bt_err(status));
 
 	return 0;
@@ -1950,19 +1944,21 @@ static int l2cap_disconn_ind(struct hci_conn *hcon, u8 reason)
 		return 0;
 
 	l2cap_conn_del(hcon, bt_err(reason));
+
 	return 0;
 }
 
 static int l2cap_auth_cfm(struct hci_conn *hcon, u8 status)
 {
 	struct l2cap_chan_list *l;
-	struct l2cap_conn *conn;
+	struct l2cap_conn *conn = conn = hcon->l2cap_data;
 	struct l2cap_conn_rsp rsp;
 	struct sock *sk;
 	int result;
 
-	if (!(conn = hcon->l2cap_data))
+	if (!conn)
 		return 0;
+
 	l = &conn->chan_list;
 
 	BT_DBG("conn %p", conn);
@@ -2005,13 +2001,14 @@ static int l2cap_auth_cfm(struct hci_conn *hcon, u8 status)
 static int l2cap_encrypt_cfm(struct hci_conn *hcon, u8 status)
 {
 	struct l2cap_chan_list *l;
-	struct l2cap_conn *conn;
+	struct l2cap_conn *conn = hcon->l2cap_data;
 	struct l2cap_conn_rsp rsp;
 	struct sock *sk;
 	int result;
 
-	if (!(conn = hcon->l2cap_data))
+	if (!conn)
 		return 0;
+
 	l = &conn->chan_list;
 
 	BT_DBG("conn %p", conn);
@@ -2219,7 +2216,7 @@ static int __init l2cap_init(void)
 		goto error;
 	}
 
-	class_create_file(&bt_class, &class_attr_l2cap);
+	class_create_file(bt_class, &class_attr_l2cap);
 
 	BT_INFO("L2CAP ver %s", VERSION);
 	BT_INFO("L2CAP socket layer initialized");
@@ -2233,7 +2230,7 @@ error:
 
 static void __exit l2cap_exit(void)
 {
-	class_remove_file(&bt_class, &class_attr_l2cap);
+	class_remove_file(bt_class, &class_attr_l2cap);
 
 	if (bt_sock_unregister(BTPROTO_L2CAP) < 0)
 		BT_ERR("L2CAP socket unregistration failed");
diff --git a/net/bluetooth/rfcomm/core.c b/net/bluetooth/rfcomm/core.c
index bd46e8927f2..155a2b93760 100644
--- a/net/bluetooth/rfcomm/core.c
+++ b/net/bluetooth/rfcomm/core.c
@@ -52,8 +52,9 @@
 #define BT_DBG(D...)
 #endif
 
-#define VERSION "1.7"
+#define VERSION "1.8"
 
+static int disable_cfc = 0;
 static unsigned int l2cap_mtu = RFCOMM_MAX_L2CAP_MTU;
 
 static struct task_struct *rfcomm_thread;
@@ -533,7 +534,7 @@ static struct rfcomm_session *rfcomm_session_add(struct socket *sock, int state)
 	s->sock  = sock;
 
 	s->mtu = RFCOMM_DEFAULT_MTU;
-	s->cfc = RFCOMM_CFC_UNKNOWN;
+	s->cfc = disable_cfc ? RFCOMM_CFC_DISABLED : RFCOMM_CFC_UNKNOWN;
 
 	/* Do not increment module usage count for listening sessions.
 	 * Otherwise we won't be able to unload the module. */
@@ -1149,6 +1150,8 @@ static inline int rfcomm_check_link_mode(struct rfcomm_dlc *d)
 
 static void rfcomm_dlc_accept(struct rfcomm_dlc *d)
 {
+	struct sock *sk = d->session->sock->sk;
+
 	BT_DBG("dlc %p", d);
 
 	rfcomm_send_ua(d->session, d->dlci);
@@ -1158,6 +1161,9 @@ static void rfcomm_dlc_accept(struct rfcomm_dlc *d)
 	d->state_change(d, 0);
 	rfcomm_dlc_unlock(d);
 
+	if (d->link_mode & RFCOMM_LM_MASTER)
+		hci_conn_switch_role(l2cap_pi(sk)->conn->hcon, 0x00);
+
 	rfcomm_send_msc(d->session, 1, d->dlci, d->v24_sig);
 }
 
@@ -1222,14 +1228,18 @@ static int rfcomm_apply_pn(struct rfcomm_dlc *d, int cr, struct rfcomm_pn *pn)
 	BT_DBG("dlc %p state %ld dlci %d mtu %d fc 0x%x credits %d", 
 			d, d->state, d->dlci, pn->mtu, pn->flow_ctrl, pn->credits);
 
-	if (pn->flow_ctrl == 0xf0 || pn->flow_ctrl == 0xe0) {
-		d->cfc = s->cfc = RFCOMM_CFC_ENABLED;
+	if ((pn->flow_ctrl == 0xf0 && s->cfc != RFCOMM_CFC_DISABLED) ||
+						pn->flow_ctrl == 0xe0) {
+		d->cfc = RFCOMM_CFC_ENABLED;
 		d->tx_credits = pn->credits;
 	} else {
-		d->cfc = s->cfc = RFCOMM_CFC_DISABLED;
+		d->cfc = RFCOMM_CFC_DISABLED;
 		set_bit(RFCOMM_TX_THROTTLED, &d->flags);
 	}
 
+	if (s->cfc == RFCOMM_CFC_UNKNOWN)
+		s->cfc = d->cfc;
+
 	d->priority = pn->priority;
 
 	d->mtu = s->mtu = btohs(pn->mtu);
@@ -2035,7 +2045,7 @@ static int __init rfcomm_init(void)
 
 	kernel_thread(rfcomm_run, NULL, CLONE_KERNEL);
 
-	class_create_file(&bt_class, &class_attr_rfcomm_dlc);
+	class_create_file(bt_class, &class_attr_rfcomm_dlc);
 
 	rfcomm_init_sockets();
 
@@ -2050,7 +2060,7 @@ static int __init rfcomm_init(void)
 
 static void __exit rfcomm_exit(void)
 {
-	class_remove_file(&bt_class, &class_attr_rfcomm_dlc);
+	class_remove_file(bt_class, &class_attr_rfcomm_dlc);
 
 	hci_unregister_cb(&rfcomm_cb);
 
@@ -2073,6 +2083,9 @@ static void __exit rfcomm_exit(void)
 module_init(rfcomm_init);
 module_exit(rfcomm_exit);
 
+module_param(disable_cfc, bool, 0644);
+MODULE_PARM_DESC(disable_cfc, "Disable credit based flow control");
+
 module_param(l2cap_mtu, uint, 0644);
 MODULE_PARM_DESC(l2cap_mtu, "Default MTU for the L2CAP connection");
 
diff --git a/net/bluetooth/rfcomm/sock.c b/net/bluetooth/rfcomm/sock.c
index 4e9962c8cfa..220fee04e7f 100644
--- a/net/bluetooth/rfcomm/sock.c
+++ b/net/bluetooth/rfcomm/sock.c
@@ -944,7 +944,7 @@ int __init rfcomm_init_sockets(void)
 	if (err < 0)
 		goto error;
 
-	class_create_file(&bt_class, &class_attr_rfcomm);
+	class_create_file(bt_class, &class_attr_rfcomm);
 
 	BT_INFO("RFCOMM socket layer initialized");
 
@@ -958,7 +958,7 @@ error:
 
 void __exit rfcomm_cleanup_sockets(void)
 {
-	class_remove_file(&bt_class, &class_attr_rfcomm);
+	class_remove_file(bt_class, &class_attr_rfcomm);
 
 	if (bt_sock_unregister(BTPROTO_RFCOMM) < 0)
 		BT_ERR("RFCOMM socket layer unregistration failed");
diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c
index a5f1e44db5d..85defccc028 100644
--- a/net/bluetooth/sco.c
+++ b/net/bluetooth/sco.c
@@ -969,7 +969,7 @@ static int __init sco_init(void)
 		goto error;
 	}
 
-	class_create_file(&bt_class, &class_attr_sco);
+	class_create_file(bt_class, &class_attr_sco);
 
 	BT_INFO("SCO (Voice Link) ver %s", VERSION);
 	BT_INFO("SCO socket layer initialized");
@@ -983,7 +983,7 @@ error:
 
 static void __exit sco_exit(void)
 {
-	class_remove_file(&bt_class, &class_attr_sco);
+	class_remove_file(bt_class, &class_attr_sco);
 
 	if (bt_sock_unregister(BTPROTO_SCO) < 0)
 		BT_ERR("SCO socket unregistration failed");
diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c
index 881d7d1a732..06abb6634f5 100644
--- a/net/bridge/br_netlink.c
+++ b/net/bridge/br_netlink.c
@@ -117,12 +117,13 @@ static int br_dump_ifinfo(struct sk_buff *skb, struct netlink_callback *cb)
 			continue;
 
 		if (idx < s_idx)
-			continue;
+			goto cont;
 
 		err = br_fill_ifinfo(skb, p, NETLINK_CB(cb->skb).pid,
 				     cb->nlh->nlmsg_seq, RTM_NEWLINK, NLM_F_MULTI);
 		if (err <= 0)
 			break;
+cont:
 		++idx;
 	}
 	read_unlock(&dev_base_lock);
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 7cfbdb215ba..44f6a181a75 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -71,6 +71,13 @@ static kmem_cache_t *skbuff_head_cache __read_mostly;
 static kmem_cache_t *skbuff_fclone_cache __read_mostly;
 
 /*
+ * lockdep: lock class key used by skb_queue_head_init():
+ */
+struct lock_class_key skb_queue_lock_key;
+
+EXPORT_SYMBOL(skb_queue_lock_key);
+
+/*
  *	Keep out-of-line to prevent kernel bloat.
  *	__builtin_return_address is not used because it is not always
  *	reliable.
diff --git a/net/core/sock.c b/net/core/sock.c
index 533b9317144..51fcfbc041a 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -129,6 +129,53 @@
 #include <net/tcp.h>
 #endif
 
+/*
+ * Each address family might have different locking rules, so we have
+ * one slock key per address family:
+ */
+static struct lock_class_key af_family_keys[AF_MAX];
+static struct lock_class_key af_family_slock_keys[AF_MAX];
+
+#ifdef CONFIG_DEBUG_LOCK_ALLOC
+/*
+ * Make lock validator output more readable. (we pre-construct these
+ * strings build-time, so that runtime initialization of socket
+ * locks is fast):
+ */
+static const char *af_family_key_strings[AF_MAX+1] = {
+  "sk_lock-AF_UNSPEC", "sk_lock-AF_UNIX"     , "sk_lock-AF_INET"     ,
+  "sk_lock-AF_AX25"  , "sk_lock-AF_IPX"      , "sk_lock-AF_APPLETALK",
+  "sk_lock-AF_NETROM", "sk_lock-AF_BRIDGE"   , "sk_lock-AF_ATMPVC"   ,
+  "sk_lock-AF_X25"   , "sk_lock-AF_INET6"    , "sk_lock-AF_ROSE"     ,
+  "sk_lock-AF_DECnet", "sk_lock-AF_NETBEUI"  , "sk_lock-AF_SECURITY" ,
+  "sk_lock-AF_KEY"   , "sk_lock-AF_NETLINK"  , "sk_lock-AF_PACKET"   ,
+  "sk_lock-AF_ASH"   , "sk_lock-AF_ECONET"   , "sk_lock-AF_ATMSVC"   ,
+  "sk_lock-21"       , "sk_lock-AF_SNA"      , "sk_lock-AF_IRDA"     ,
+  "sk_lock-AF_PPPOX" , "sk_lock-AF_WANPIPE"  , "sk_lock-AF_LLC"      ,
+  "sk_lock-27"       , "sk_lock-28"          , "sk_lock-29"          ,
+  "sk_lock-AF_TIPC"  , "sk_lock-AF_BLUETOOTH", "sk_lock-AF_MAX"
+};
+static const char *af_family_slock_key_strings[AF_MAX+1] = {
+  "slock-AF_UNSPEC", "slock-AF_UNIX"     , "slock-AF_INET"     ,
+  "slock-AF_AX25"  , "slock-AF_IPX"      , "slock-AF_APPLETALK",
+  "slock-AF_NETROM", "slock-AF_BRIDGE"   , "slock-AF_ATMPVC"   ,
+  "slock-AF_X25"   , "slock-AF_INET6"    , "slock-AF_ROSE"     ,
+  "slock-AF_DECnet", "slock-AF_NETBEUI"  , "slock-AF_SECURITY" ,
+  "slock-AF_KEY"   , "slock-AF_NETLINK"  , "slock-AF_PACKET"   ,
+  "slock-AF_ASH"   , "slock-AF_ECONET"   , "slock-AF_ATMSVC"   ,
+  "slock-21"       , "slock-AF_SNA"      , "slock-AF_IRDA"     ,
+  "slock-AF_PPPOX" , "slock-AF_WANPIPE"  , "slock-AF_LLC"      ,
+  "slock-27"       , "slock-28"          , "slock-29"          ,
+  "slock-AF_TIPC"  , "slock-AF_BLUETOOTH", "slock-AF_MAX"
+};
+#endif
+
+/*
+ * sk_callback_lock locking rules are per-address-family,
+ * so split the lock classes by using a per-AF key:
+ */
+static struct lock_class_key af_callback_keys[AF_MAX];
+
 /* Take into consideration the size of the struct sk_buff overhead in the
  * determination of these values, since that is non-constant across
  * platforms.  This makes socket queueing behavior and performance
@@ -237,9 +284,16 @@ int sk_receive_skb(struct sock *sk, struct sk_buff *skb)
 	skb->dev = NULL;
 
 	bh_lock_sock(sk);
-	if (!sock_owned_by_user(sk))
+	if (!sock_owned_by_user(sk)) {
+		/*
+		 * trylock + unlock semantics:
+		 */
+		mutex_acquire(&sk->sk_lock.dep_map, 0, 1, _RET_IP_);
+
 		rc = sk->sk_backlog_rcv(sk, skb);
-	else
+
+		mutex_release(&sk->sk_lock.dep_map, 1, _RET_IP_);
+	} else
 		sk_add_backlog(sk, skb);
 	bh_unlock_sock(sk);
 out:
@@ -749,6 +803,33 @@ lenout:
   	return 0;
 }
 
+/*
+ * Initialize an sk_lock.
+ *
+ * (We also register the sk_lock with the lock validator.)
+ */
+static void inline sock_lock_init(struct sock *sk)
+{
+	spin_lock_init(&sk->sk_lock.slock);
+	sk->sk_lock.owner = NULL;
+	init_waitqueue_head(&sk->sk_lock.wq);
+	/*
+	 * Make sure we are not reinitializing a held lock:
+	 */
+	debug_check_no_locks_freed((void *)&sk->sk_lock, sizeof(sk->sk_lock));
+
+	/*
+	 * Mark both the sk_lock and the sk_lock.slock as a
+	 * per-address-family lock class:
+	 */
+	lockdep_set_class_and_name(&sk->sk_lock.slock,
+				   af_family_slock_keys + sk->sk_family,
+				   af_family_slock_key_strings[sk->sk_family]);
+	lockdep_init_map(&sk->sk_lock.dep_map,
+			 af_family_key_strings[sk->sk_family],
+			 af_family_keys + sk->sk_family);
+}
+
 /**
  *	sk_alloc - All socket objects are allocated here
  *	@family: protocol family
@@ -848,6 +929,8 @@ struct sock *sk_clone(const struct sock *sk, const gfp_t priority)
 
 		rwlock_init(&newsk->sk_dst_lock);
 		rwlock_init(&newsk->sk_callback_lock);
+		lockdep_set_class(&newsk->sk_callback_lock,
+				   af_callback_keys + newsk->sk_family);
 
 		newsk->sk_dst_cache	= NULL;
 		newsk->sk_wmem_queued	= 0;
@@ -1422,6 +1505,8 @@ void sock_init_data(struct socket *sock, struct sock *sk)
 
 	rwlock_init(&sk->sk_dst_lock);
 	rwlock_init(&sk->sk_callback_lock);
+	lockdep_set_class(&sk->sk_callback_lock,
+			   af_callback_keys + sk->sk_family);
 
 	sk->sk_state_change	=	sock_def_wakeup;
 	sk->sk_data_ready	=	sock_def_readable;
@@ -1449,24 +1534,34 @@ void sock_init_data(struct socket *sock, struct sock *sk)
 void fastcall lock_sock(struct sock *sk)
 {
 	might_sleep();
-	spin_lock_bh(&(sk->sk_lock.slock));
+	spin_lock_bh(&sk->sk_lock.slock);
 	if (sk->sk_lock.owner)
 		__lock_sock(sk);
 	sk->sk_lock.owner = (void *)1;
-	spin_unlock_bh(&(sk->sk_lock.slock));
+	spin_unlock(&sk->sk_lock.slock);
+	/*
+	 * The sk_lock has mutex_lock() semantics here:
+	 */
+	mutex_acquire(&sk->sk_lock.dep_map, 0, 0, _RET_IP_);
+	local_bh_enable();
 }
 
 EXPORT_SYMBOL(lock_sock);
 
 void fastcall release_sock(struct sock *sk)
 {
-	spin_lock_bh(&(sk->sk_lock.slock));
+	/*
+	 * The sk_lock has mutex_unlock() semantics:
+	 */
+	mutex_release(&sk->sk_lock.dep_map, 1, _RET_IP_);
+
+	spin_lock_bh(&sk->sk_lock.slock);
 	if (sk->sk_backlog.tail)
 		__release_sock(sk);
 	sk->sk_lock.owner = NULL;
-        if (waitqueue_active(&(sk->sk_lock.wq)))
-		wake_up(&(sk->sk_lock.wq));
-	spin_unlock_bh(&(sk->sk_lock.slock));
+	if (waitqueue_active(&sk->sk_lock.wq))
+		wake_up(&sk->sk_lock.wq);
+	spin_unlock_bh(&sk->sk_lock.slock);
 }
 EXPORT_SYMBOL(release_sock);
 
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index 8d157157bf8..318d4674faa 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -1106,7 +1106,15 @@ static struct sk_buff *inet_gso_segment(struct sk_buff *skb, int features)
 	int ihl;
 	int id;
 
-	if (!pskb_may_pull(skb, sizeof(*iph)))
+	if (unlikely(skb_shinfo(skb)->gso_type &
+		     ~(SKB_GSO_TCPV4 |
+		       SKB_GSO_UDP |
+		       SKB_GSO_DODGY |
+		       SKB_GSO_TCP_ECN |
+		       0)))
+		goto out;
+
+	if (unlikely(!pskb_may_pull(skb, sizeof(*iph))))
 		goto out;
 
 	iph = skb->nh.iph;
@@ -1114,7 +1122,7 @@ static struct sk_buff *inet_gso_segment(struct sk_buff *skb, int features)
 	if (ihl < sizeof(*iph))
 		goto out;
 
-	if (!pskb_may_pull(skb, ihl))
+	if (unlikely(!pskb_may_pull(skb, ihl)))
 		goto out;
 
 	skb->h.raw = __skb_pull(skb, ihl);
@@ -1125,7 +1133,7 @@ static struct sk_buff *inet_gso_segment(struct sk_buff *skb, int features)
 
 	rcu_read_lock();
 	ops = rcu_dereference(inet_protos[proto]);
-	if (ops && ops->gso_segment)
+	if (likely(ops && ops->gso_segment))
 		segs = ops->gso_segment(skb, features);
 	rcu_read_unlock();
 
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index da44fabf4dc..2dc6dbb2846 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -205,21 +205,27 @@ __u8 ip_tos2prio[16] = {
 struct rt_hash_bucket {
 	struct rtable	*chain;
 };
-#if defined(CONFIG_SMP) || defined(CONFIG_DEBUG_SPINLOCK)
+#if defined(CONFIG_SMP) || defined(CONFIG_DEBUG_SPINLOCK) || \
+	defined(CONFIG_PROVE_LOCKING)
 /*
  * Instead of using one spinlock for each rt_hash_bucket, we use a table of spinlocks
  * The size of this table is a power of two and depends on the number of CPUS.
+ * (on lockdep we have a quite big spinlock_t, so keep the size down there)
  */
-#if NR_CPUS >= 32
-#define RT_HASH_LOCK_SZ	4096
-#elif NR_CPUS >= 16
-#define RT_HASH_LOCK_SZ	2048
-#elif NR_CPUS >= 8
-#define RT_HASH_LOCK_SZ	1024
-#elif NR_CPUS >= 4
-#define RT_HASH_LOCK_SZ	512
+#ifdef CONFIG_LOCKDEP
+# define RT_HASH_LOCK_SZ	256
 #else
-#define RT_HASH_LOCK_SZ	256
+# if NR_CPUS >= 32
+#  define RT_HASH_LOCK_SZ	4096
+# elif NR_CPUS >= 16
+#  define RT_HASH_LOCK_SZ	2048
+# elif NR_CPUS >= 8
+#  define RT_HASH_LOCK_SZ	1024
+# elif NR_CPUS >= 4
+#  define RT_HASH_LOCK_SZ	512
+# else
+#  define RT_HASH_LOCK_SZ	256
+# endif
 #endif
 
 static spinlock_t	*rt_hash_locks;
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 804458712d8..f6a2d9223d0 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -2170,8 +2170,19 @@ struct sk_buff *tcp_tso_segment(struct sk_buff *skb, int features)
 
 	if (skb_gso_ok(skb, features | NETIF_F_GSO_ROBUST)) {
 		/* Packet is from an untrusted source, reset gso_segs. */
-		int mss = skb_shinfo(skb)->gso_size;
+		int type = skb_shinfo(skb)->gso_type;
+		int mss;
+
+		if (unlikely(type &
+			     ~(SKB_GSO_TCPV4 |
+			       SKB_GSO_DODGY |
+			       SKB_GSO_TCP_ECN |
+			       SKB_GSO_TCPV6 |
+			       0) ||
+			     !(type & (SKB_GSO_TCPV4 | SKB_GSO_TCPV6))))
+			goto out;
 
+		mss = skb_shinfo(skb)->gso_size;
 		skb_shinfo(skb)->gso_segs = (skb->len + mss - 1) / mss;
 
 		segs = NULL;
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 8355b729fa9..5a886e6efbb 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -90,7 +90,7 @@ static struct socket *tcp_socket;
 void tcp_v4_send_check(struct sock *sk, int len, struct sk_buff *skb);
 
 struct inet_hashinfo __cacheline_aligned tcp_hashinfo = {
-	.lhash_lock	= RW_LOCK_UNLOCKED,
+	.lhash_lock	= __RW_LOCK_UNLOCKED(tcp_hashinfo.lhash_lock),
 	.lhash_users	= ATOMIC_INIT(0),
 	.lhash_wait	= __WAIT_QUEUE_HEAD_INITIALIZER(tcp_hashinfo.lhash_wait),
 };
@@ -1090,7 +1090,7 @@ process:
 
 	skb->dev = NULL;
 
-	bh_lock_sock(sk);
+	bh_lock_sock_nested(sk);
 	ret = 0;
 	if (!sock_owned_by_user(sk)) {
 #ifdef CONFIG_NET_DMA
diff --git a/net/ipv4/tcp_minisocks.c b/net/ipv4/tcp_minisocks.c
index e0851697ad5..0ccb7cb22b1 100644
--- a/net/ipv4/tcp_minisocks.c
+++ b/net/ipv4/tcp_minisocks.c
@@ -40,7 +40,7 @@ int sysctl_tcp_abort_on_overflow;
 struct inet_timewait_death_row tcp_death_row = {
 	.sysctl_max_tw_buckets = NR_FILE * 2,
 	.period		= TCP_TIMEWAIT_LEN / INET_TWDR_TWKILL_SLOTS,
-	.death_lock	= SPIN_LOCK_UNLOCKED,
+	.death_lock	= __SPIN_LOCK_UNLOCKED(tcp_death_row.death_lock),
 	.hashinfo	= &tcp_hashinfo,
 	.tw_timer	= TIMER_INITIALIZER(inet_twdr_hangman, 0,
 					    (unsigned long)&tcp_death_row),
diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c
index c28e5c28744..0c17dec11c8 100644
--- a/net/ipv6/ipv6_sockglue.c
+++ b/net/ipv6/ipv6_sockglue.c
@@ -64,6 +64,14 @@ static struct sk_buff *ipv6_gso_segment(struct sk_buff *skb, int features)
 	struct inet6_protocol *ops;
 	int proto;
 
+	if (unlikely(skb_shinfo(skb)->gso_type &
+		     ~(SKB_GSO_UDP |
+		       SKB_GSO_DODGY |
+		       SKB_GSO_TCP_ECN |
+		       SKB_GSO_TCPV6 |
+		       0)))
+		goto out;
+
 	if (unlikely(!pskb_may_pull(skb, sizeof(*ipv6h))))
 		goto out;
 
@@ -111,7 +119,8 @@ unlock:
 
 	for (skb = segs; skb; skb = skb->next) {
 		ipv6h = skb->nh.ipv6h;
-		ipv6h->payload_len = htons(skb->len - skb->mac_len);
+		ipv6h->payload_len = htons(skb->len - skb->mac_len -
+					   sizeof(*ipv6h));
 	}
 
 out:
diff --git a/net/ipv6/netfilter/ip6_tables.c b/net/ipv6/netfilter/ip6_tables.c
index 7ef143c0ebf..f26898b0034 100644
--- a/net/ipv6/netfilter/ip6_tables.c
+++ b/net/ipv6/netfilter/ip6_tables.c
@@ -25,6 +25,7 @@
 #include <linux/vmalloc.h>
 #include <linux/netdevice.h>
 #include <linux/module.h>
+#include <linux/poison.h>
 #include <linux/icmpv6.h>
 #include <net/ipv6.h>
 #include <asm/uaccess.h>
@@ -376,7 +377,7 @@ ip6t_do_table(struct sk_buff **pskb,
 	} while (!hotdrop);
 
 #ifdef CONFIG_NETFILTER_DEBUG
-	((struct ip6t_entry *)table_base)->comefrom = 0xdead57ac;
+	((struct ip6t_entry *)table_base)->comefrom = NETFILTER_LINK_POISON;
 #endif
 	read_unlock_bh(&table->lock);
 
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index 70cee82a98b..55c0adc8f11 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -156,7 +156,7 @@ static void netlink_sock_destruct(struct sock *sk)
 
 static void netlink_table_grab(void)
 {
-	write_lock_bh(&nl_table_lock);
+	write_lock_irq(&nl_table_lock);
 
 	if (atomic_read(&nl_table_users)) {
 		DECLARE_WAITQUEUE(wait, current);
@@ -166,9 +166,9 @@ static void netlink_table_grab(void)
 			set_current_state(TASK_UNINTERRUPTIBLE);
 			if (atomic_read(&nl_table_users) == 0)
 				break;
-			write_unlock_bh(&nl_table_lock);
+			write_unlock_irq(&nl_table_lock);
 			schedule();
-			write_lock_bh(&nl_table_lock);
+			write_lock_irq(&nl_table_lock);
 		}
 
 		__set_current_state(TASK_RUNNING);
@@ -178,7 +178,7 @@ static void netlink_table_grab(void)
 
 static __inline__ void netlink_table_ungrab(void)
 {
-	write_unlock_bh(&nl_table_lock);
+	write_unlock_irq(&nl_table_lock);
 	wake_up(&nl_table_wait);
 }
 
diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c
index eba6df054b1..389a4119e1b 100644
--- a/net/netrom/af_netrom.c
+++ b/net/netrom/af_netrom.c
@@ -800,7 +800,7 @@ static int nr_accept(struct socket *sock, struct socket *newsock, int flags)
 
 	/* Now attach up the new socket */
 	kfree_skb(skb);
-	sk->sk_ack_backlog--;
+	sk_acceptq_removed(sk);
 	newsock->sk = newsk;
 
 out:
@@ -985,7 +985,7 @@ int nr_rx_frame(struct sk_buff *skb, struct net_device *dev)
 	nr_make->vr        = 0;
 	nr_make->vl        = 0;
 	nr_make->state     = NR_STATE_3;
-	sk->sk_ack_backlog++;
+	sk_acceptq_added(sk);
 
 	nr_insert_socket(make);
 
diff --git a/net/rose/af_rose.c b/net/rose/af_rose.c
index 7799fe82aeb..d0a67bb3136 100644
--- a/net/rose/af_rose.c
+++ b/net/rose/af_rose.c
@@ -752,7 +752,7 @@ static int rose_connect(struct socket *sock, struct sockaddr *uaddr, int addr_le
 
 		rose_insert_socket(sk);		/* Finish the bind */
 	}
-
+rose_try_next_neigh:
 	rose->dest_addr   = addr->srose_addr;
 	rose->dest_call   = addr->srose_call;
 	rose->rand        = ((long)rose & 0xFFFF) + rose->lci;
@@ -810,6 +810,11 @@ static int rose_connect(struct socket *sock, struct sockaddr *uaddr, int addr_le
 	}
 
 	if (sk->sk_state != TCP_ESTABLISHED) {
+	/* Try next neighbour */
+		rose->neighbour = rose_get_neigh(&addr->srose_addr, &cause, &diagnostic);
+		if (rose->neighbour)
+			goto rose_try_next_neigh;
+	/* No more neighbour */
 		sock->state = SS_UNCONNECTED;
 		return sock_error(sk);	/* Always set at this point */
 	}
diff --git a/net/rose/rose_dev.c b/net/rose/rose_dev.c
index 9d0bf2a1ea3..7c279e2659e 100644
--- a/net/rose/rose_dev.c
+++ b/net/rose/rose_dev.c
@@ -59,6 +59,7 @@ static int rose_rebuild_header(struct sk_buff *skb)
 	struct net_device_stats *stats = netdev_priv(dev);
 	unsigned char *bp = (unsigned char *)skb->data;
 	struct sk_buff *skbn;
+	unsigned int len;
 
 #ifdef CONFIG_INET
 	if (arp_find(bp + 7, skb)) {
@@ -75,6 +76,8 @@ static int rose_rebuild_header(struct sk_buff *skb)
 
 	kfree_skb(skb);
 
+	len = skbn->len;
+
 	if (!rose_route_frame(skbn, NULL)) {
 		kfree_skb(skbn);
 		stats->tx_errors++;
@@ -82,7 +85,7 @@ static int rose_rebuild_header(struct sk_buff *skb)
 	}
 
 	stats->tx_packets++;
-	stats->tx_bytes += skbn->len;
+	stats->tx_bytes += len;
 #endif
 	return 1;
 }
diff --git a/net/sunrpc/rpc_pipe.c b/net/sunrpc/rpc_pipe.c
index 6db6006616c..dc6cb93c883 100644
--- a/net/sunrpc/rpc_pipe.c
+++ b/net/sunrpc/rpc_pipe.c
@@ -515,7 +515,7 @@ rpc_depopulate(struct dentry *parent)
 	struct dentry *dentry, *dvec[10];
 	int n = 0;
 
-	mutex_lock(&dir->i_mutex);
+	mutex_lock_nested(&dir->i_mutex, I_MUTEX_CHILD);
 repeat:
 	spin_lock(&dcache_lock);
 	list_for_each_safe(pos, next, &parent->d_subdirs) {
@@ -631,7 +631,7 @@ rpc_lookup_negative(char *path, struct nameidata *nd)
 	if ((error = rpc_lookup_parent(path, nd)) != 0)
 		return ERR_PTR(error);
 	dir = nd->dentry->d_inode;
-	mutex_lock(&dir->i_mutex);
+	mutex_lock_nested(&dir->i_mutex, I_MUTEX_PARENT);
 	dentry = lookup_one_len(nd->last.name, nd->dentry, nd->last.len);
 	if (IS_ERR(dentry))
 		goto out_err;
@@ -693,7 +693,7 @@ rpc_rmdir(char *path)
 	if ((error = rpc_lookup_parent(path, &nd)) != 0)
 		return error;
 	dir = nd.dentry->d_inode;
-	mutex_lock(&dir->i_mutex);
+	mutex_lock_nested(&dir->i_mutex, I_MUTEX_PARENT);
 	dentry = lookup_one_len(nd.last.name, nd.dentry, nd.last.len);
 	if (IS_ERR(dentry)) {
 		error = PTR_ERR(dentry);
@@ -754,7 +754,7 @@ rpc_unlink(char *path)
 	if ((error = rpc_lookup_parent(path, &nd)) != 0)
 		return error;
 	dir = nd.dentry->d_inode;
-	mutex_lock(&dir->i_mutex);
+	mutex_lock_nested(&dir->i_mutex, I_MUTEX_PARENT);
 	dentry = lookup_one_len(nd.last.name, nd.dentry, nd.last.len);
 	if (IS_ERR(dentry)) {
 		error = PTR_ERR(dentry);
diff --git a/net/tipc/core.h b/net/tipc/core.h
index 86f54f3512f..762aac2572b 100644
--- a/net/tipc/core.h
+++ b/net/tipc/core.h
@@ -297,7 +297,10 @@ static inline struct tipc_msg *buf_msg(struct sk_buff *skb)
  * buf_acquire - creates a TIPC message buffer
  * @size: message size (including TIPC header)
  *
- * Returns a new buffer.  Space is reserved for a data link header.
+ * Returns a new buffer with data pointers set to the specified size.
+ * 
+ * NOTE: Headroom is reserved to allow prepending of a data link header.
+ *       There may also be unrequested tailroom present at the buffer's end.
  */
 
 static inline struct sk_buff *buf_acquire(u32 size)
diff --git a/net/tipc/link.c b/net/tipc/link.c
index c6831c75cfa..c10e18a49b9 100644
--- a/net/tipc/link.c
+++ b/net/tipc/link.c
@@ -998,6 +998,8 @@ static int link_bundle_buf(struct link *l_ptr,
 		return 0;
 	if (skb_tailroom(bundler) < (pad + size))
 		return 0;
+	if (link_max_pkt(l_ptr) < (to_pos + size))
+		return 0;
 
 	skb_put(bundler, pad + size);
 	memcpy(bundler->data + to_pos, buf->data, size);
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index aca65010942..f70475bfb62 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -144,7 +144,7 @@ static inline void unix_set_secdata(struct scm_cookie *scm, struct sk_buff *skb)
 	scm->seclen = *UNIXSECLEN(skb);
 }
 #else
-static void unix_get_peersec_dgram(struct sk_buff *skb)
+static inline void unix_get_peersec_dgram(struct sk_buff *skb)
 { }
 
 static inline void unix_set_secdata(struct scm_cookie *scm, struct sk_buff *skb)
@@ -565,6 +565,14 @@ static struct proto unix_proto = {
 	.obj_size = sizeof(struct unix_sock),
 };
 
+/*
+ * AF_UNIX sockets do not interact with hardware, hence they
+ * dont trigger interrupts - so it's safe for them to have
+ * bh-unsafe locking for their sk_receive_queue.lock. Split off
+ * this special lock-class by reinitializing the spinlock key:
+ */
+static struct lock_class_key af_unix_sk_receive_queue_lock_key;
+
 static struct sock * unix_create1(struct socket *sock)
 {
 	struct sock *sk = NULL;
@@ -580,6 +588,8 @@ static struct sock * unix_create1(struct socket *sock)
 	atomic_inc(&unix_nr_socks);
 
 	sock_init_data(sock,sk);
+	lockdep_set_class(&sk->sk_receive_queue.lock,
+				&af_unix_sk_receive_queue_lock_key);
 
 	sk->sk_write_space	= unix_write_space;
 	sk->sk_max_ack_backlog	= sysctl_unix_max_dgram_qlen;
@@ -1045,7 +1055,7 @@ restart:
 		goto out_unlock;
 	}
 
-	unix_state_wlock(sk);
+	unix_state_wlock_nested(sk);
 
 	if (sk->sk_state != st) {
 		unix_state_wunlock(sk);