Merge commit master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 of HEAD

* HEAD:
  [NET]: fix __sk_stream_mem_reclaim
  [Bluetooth] Fix deadlock in the L2CAP layer
  [Bluetooth] Let BT_HIDP depend on INPUT
  [Bluetooth] Avoid NULL pointer dereference with tty->driver
  [Bluetooth] Remaining transitions to use kzalloc()
  [WAN]: converting generic HDLC to use netif_dormant*()
  [IPV4]: Fix error handling for fib_insert_node call
  [NETROM] lockdep: fix false positive
  [ROSE] lockdep: fix false positive
  [AX.25]: Optimize AX.25 socket list lock
  [IPCOMP]: Fix truesize after decompression
  [IPV6]: Use ipv6_addr_src_scope for link address sorting.
  [TCP] tcp_highspeed: Fix AI updates.
  [MAINTAINERS]: Add proper entry for TC classifier
  [NETROM]: Drop lock before calling nr_destroy_socket
  [NETROM]: Fix locking order when establishing a NETROM circuit.
  [AX.25]: Fix locking of ax25 protocol function list.
  [IPV6]: order addresses by scope

MAINTAINERS

@@ -2752,6 +2752,12 @@ P:	Christoph Hellwig
 M:	hch@infradead.org
 S:	Maintained
 
+TC CLASSIFIER
+P:	Jamal Hadi Salim
+M:	hadi@cyberus.ca
+L:	netdev@vger.kernel.org
+S:	Maintained
+
 TI OMAP RANDOM NUMBER GENERATOR SUPPORT
 P:	Deepak Saxena
 M:	dsaxena@plexity.net

drivers/bluetooth/hci_ldisc.c

@@ -191,7 +191,7 @@ static int hci_uart_flush(struct hci_dev *hdev)
 
 	/* Flush any pending characters in the driver and discipline. */
 	tty_ldisc_flush(tty);
-	if (tty->driver->flush_buffer)
+	if (tty->driver && tty->driver->flush_buffer)
 		tty->driver->flush_buffer(tty);
 
 	if (test_bit(HCI_UART_PROTO_SET, &hu->flags))
@@ -290,7 +290,7 @@ static int hci_uart_tty_open(struct tty_struct *tty)
 	if (tty->ldisc.flush_buffer)
 		tty->ldisc.flush_buffer(tty);
 
-	if (tty->driver->flush_buffer)
+	if (tty->driver && tty->driver->flush_buffer)
 		tty->driver->flush_buffer(tty);
 
 	return 0;

drivers/net/wan/c101.c

@@ -116,27 +116,33 @@ static inline void openwin(card_t *card, u8 page)
 #include "hd6457x.c"
 
 
+static inline void set_carrier(port_t *port)
+{
+	if (!sca_in(MSCI1_OFFSET + ST3, port) & ST3_DCD)
+		netif_carrier_on(port_to_dev(port));
+	else
+		netif_carrier_off(port_to_dev(port));
+}
+
+
 static void sca_msci_intr(port_t *port)
 {
-	struct net_device *dev = port_to_dev(port);
-	card_t* card = port_to_card(port);
-	u8 stat = sca_in(MSCI1_OFFSET + ST1, card); /* read MSCI ST1 status */
+	u8 stat = sca_in(MSCI1_OFFSET + ST1, port); /* read MSCI ST1 status */
 
 	/* Reset MSCI TX underrun status bit */
-	sca_out(stat & ST1_UDRN, MSCI0_OFFSET + ST1, card);
+	sca_out(stat & ST1_UDRN, MSCI0_OFFSET + ST1, port);
 
 	if (stat & ST1_UDRN) {
-		struct net_device_stats *stats = hdlc_stats(dev);
+		struct net_device_stats *stats = hdlc_stats(port_to_dev(port));
 		stats->tx_errors++; /* TX Underrun error detected */
 		stats->tx_fifo_errors++;
 	}
 
 	/* Reset MSCI CDCD status bit - uses ch#2 DCD input */
-	sca_out(stat & ST1_CDCD, MSCI1_OFFSET + ST1, card);
+	sca_out(stat & ST1_CDCD, MSCI1_OFFSET + ST1, port);
 
 	if (stat & ST1_CDCD)
-		hdlc_set_carrier(!(sca_in(MSCI1_OFFSET + ST3, card) & ST3_DCD),
-				 dev);
+		set_carrier(port);
 }
 
 
@@ -190,7 +196,7 @@ static int c101_open(struct net_device *dev)
 	sca_out(IE1_UDRN, MSCI0_OFFSET + IE1, port);
 	sca_out(IE0_TXINT, MSCI0_OFFSET + IE0, port);
 
-	hdlc_set_carrier(!(sca_in(MSCI1_OFFSET + ST3, port) & ST3_DCD), dev);
+	set_carrier(port);
 	printk(KERN_DEBUG "0x%X\n", sca_in(MSCI1_OFFSET + ST3, port));
 
 	/* enable MSCI1 CDCD interrupt */
@@ -378,7 +384,7 @@ static int __init c101_run(unsigned long irq, unsigned long winbase)
 	}
 
 	sca_init_sync_port(card); /* Set up C101 memory */
-	hdlc_set_carrier(!(sca_in(MSCI1_OFFSET + ST3, card) & ST3_DCD), dev);
+	set_carrier(card);
 
 	printk(KERN_INFO "%s: Moxa C101 on IRQ%u,"
 	       " using %u TX + %u RX packets rings\n",

drivers/net/wan/hd6457x.c

@@ -168,6 +168,23 @@ static inline u32 buffer_offset(port_t *port, u16 desc, int transmit)
 }
 
 
+static inline void sca_set_carrier(port_t *port)
+{
+	if (!(sca_in(get_msci(port) + ST3, port_to_card(port)) & ST3_DCD)) {
+#ifdef DEBUG_LINK
+		printk(KERN_DEBUG "%s: sca_set_carrier on\n",
+		       port_to_dev(port)->name);
+#endif
+		netif_carrier_on(port_to_dev(port));
+	} else {
+#ifdef DEBUG_LINK
+		printk(KERN_DEBUG "%s: sca_set_carrier off\n",
+		       port_to_dev(port)->name);
+#endif
+		netif_carrier_off(port_to_dev(port));
+	}
+}
+
 
 static void sca_init_sync_port(port_t *port)
 {
@@ -237,9 +254,7 @@ static void sca_init_sync_port(port_t *port)
 			sca_out(DIR_BOFE, DIR_TX(phy_node(port)), card);
 		}
 	}
-
-	hdlc_set_carrier(!(sca_in(get_msci(port) + ST3, card) & ST3_DCD),
-			 port_to_dev(port));
+	sca_set_carrier(port);
 }
 
 
@@ -262,8 +277,7 @@ static inline void sca_msci_intr(port_t *port)
 	}
 
 	if (stat & ST1_CDCD)
-		hdlc_set_carrier(!(sca_in(msci + ST3, card) & ST3_DCD),
-				 port_to_dev(port));
+		sca_set_carrier(port);
 }
 #endif
 
@@ -566,7 +580,7 @@ static void sca_open(struct net_device *dev)
    - all DMA interrupts
 */
 
-	hdlc_set_carrier(!(sca_in(msci + ST3, card) & ST3_DCD), dev);
+	sca_set_carrier(port);
 
 #ifdef __HD64570_H
 	/* MSCI TX INT and RX INT A IRQ enable */

drivers/net/wan/hdlc_cisco.c

@@ -192,9 +192,7 @@ static int cisco_rx(struct sk_buff *skb)
 					       "uptime %ud%uh%um%us)\n",
 					       dev->name, days, hrs,
 					       min, sec);
-#if 0
-					netif_carrier_on(dev);
-#endif
+					netif_dormant_off(dev);
 					hdlc->state.cisco.up = 1;
 				}
 			}
@@ -227,9 +225,7 @@ static void cisco_timer(unsigned long arg)
 		       hdlc->state.cisco.settings.timeout * HZ)) {
 		hdlc->state.cisco.up = 0;
 		printk(KERN_INFO "%s: Link down\n", dev->name);
-#if 0
-		netif_carrier_off(dev);
-#endif
+		netif_dormant_on(dev);
 	}
 
 	cisco_keepalive_send(dev, CISCO_KEEPALIVE_REQ,
@@ -265,10 +261,7 @@ static void cisco_stop(struct net_device *dev)
 {
 	hdlc_device *hdlc = dev_to_hdlc(dev);
 	del_timer_sync(&hdlc->state.cisco.timer);
-#if 0
-	if (netif_carrier_ok(dev))
-		netif_carrier_off(dev);
-#endif
+	netif_dormant_on(dev);
 	hdlc->state.cisco.up = 0;
 	hdlc->state.cisco.request_sent = 0;
 }
@@ -328,6 +321,7 @@ int hdlc_cisco_ioctl(struct net_device *dev, struct ifreq *ifr)
 		dev->type = ARPHRD_CISCO;
 		dev->flags = IFF_POINTOPOINT | IFF_NOARP;
 		dev->addr_len = 0;
+		netif_dormant_on(dev);
 		return 0;
 	}
 

drivers/net/wan/hdlc_fr.c

@@ -301,7 +301,7 @@ static int pvc_open(struct net_device *dev)
 	if (pvc->open_count++ == 0) {
 		hdlc_device *hdlc = dev_to_hdlc(pvc->master);
 		if (hdlc->state.fr.settings.lmi == LMI_NONE)
-			pvc->state.active = hdlc->carrier;
+			pvc->state.active = netif_carrier_ok(pvc->master);
 
 		pvc_carrier(pvc->state.active, pvc);
 		hdlc->state.fr.dce_changed = 1;
@@ -545,11 +545,7 @@ static void fr_set_link_state(int reliable, struct net_device *dev)
 
 	hdlc->state.fr.reliable = reliable;
 	if (reliable) {
-#if 0
-		if (!netif_carrier_ok(dev))
-			netif_carrier_on(dev);
-#endif
-
+		netif_dormant_off(dev);
 		hdlc->state.fr.n391cnt = 0; /* Request full status */
 		hdlc->state.fr.dce_changed = 1;
 
@@ -562,11 +558,7 @@ static void fr_set_link_state(int reliable, struct net_device *dev)
 			}
 		}
 	} else {
-#if 0
-		if (netif_carrier_ok(dev))
-			netif_carrier_off(dev);
-#endif
-
+		netif_dormant_on(dev);
 		while (pvc) {		/* Deactivate all PVCs */
 			pvc_carrier(0, pvc);
 			pvc->state.exist = pvc->state.active = 0;

drivers/net/wan/hdlc_generic.c

@@ -34,10 +34,11 @@
 #include <linux/inetdevice.h>
 #include <linux/lapb.h>
 #include <linux/rtnetlink.h>
+#include <linux/notifier.h>
 #include <linux/hdlc.h>
 
 
-static const char* version = "HDLC support module revision 1.18";
+static const char* version = "HDLC support module revision 1.19";
 
 #undef DEBUG_LINK
 
@@ -73,57 +74,51 @@ static int hdlc_rcv(struct sk_buff *skb, struct net_device *dev,
 
 
 
-static void __hdlc_set_carrier_on(struct net_device *dev)
+static inline void hdlc_proto_start(struct net_device *dev)
 {
 	hdlc_device *hdlc = dev_to_hdlc(dev);
 	if (hdlc->proto.start)
 		return hdlc->proto.start(dev);
-#if 0
-#ifdef DEBUG_LINK
-	if (netif_carrier_ok(dev))
-		printk(KERN_ERR "hdlc_set_carrier_on(): already on\n");
-#endif
-	netif_carrier_on(dev);
-#endif
 }
 
 
 
-static void __hdlc_set_carrier_off(struct net_device *dev)
+static inline void hdlc_proto_stop(struct net_device *dev)
 {
 	hdlc_device *hdlc = dev_to_hdlc(dev);
 	if (hdlc->proto.stop)
 		return hdlc->proto.stop(dev);
-
-#if 0
-#ifdef DEBUG_LINK
-	if (!netif_carrier_ok(dev))
-		printk(KERN_ERR "hdlc_set_carrier_off(): already off\n");
-#endif
-	netif_carrier_off(dev);
-#endif
 }
 
 
 
-void hdlc_set_carrier(int on, struct net_device *dev)
+static int hdlc_device_event(struct notifier_block *this, unsigned long event,
+			     void *ptr)
 {
-	hdlc_device *hdlc = dev_to_hdlc(dev);
+	struct net_device *dev = ptr;
+	hdlc_device *hdlc;
 	unsigned long flags;
-	on = on ? 1 : 0;
+	int on;
+ 
+	if (dev->get_stats != hdlc_get_stats)
+		return NOTIFY_DONE; /* not an HDLC device */
+ 
+	if (event != NETDEV_CHANGE)
+		return NOTIFY_DONE; /* Only interrested in carrier changes */
+
+	on = netif_carrier_ok(dev);
 
 #ifdef DEBUG_LINK
-	printk(KERN_DEBUG "hdlc_set_carrier %i\n", on);
+	printk(KERN_DEBUG "%s: hdlc_device_event NETDEV_CHANGE, carrier %i\n",
+	       dev->name, on);
 #endif
 
+	hdlc = dev_to_hdlc(dev);
 	spin_lock_irqsave(&hdlc->state_lock, flags);
 
 	if (hdlc->carrier == on)
 		goto carrier_exit; /* no change in DCD line level */
 
-#ifdef DEBUG_LINK
-	printk(KERN_INFO "%s: carrier %s\n", dev->name, on ? "ON" : "off");
-#endif
 	hdlc->carrier = on;
 
 	if (!hdlc->open)
@@ -131,14 +126,15 @@ void hdlc_set_carrier(int on, struct net_device *dev)
 
 	if (hdlc->carrier) {
 		printk(KERN_INFO "%s: Carrier detected\n", dev->name);
-		__hdlc_set_carrier_on(dev);
+		hdlc_proto_start(dev);
 	} else {
 		printk(KERN_INFO "%s: Carrier lost\n", dev->name);
-		__hdlc_set_carrier_off(dev);
+		hdlc_proto_stop(dev);
 	}
 
 carrier_exit:
 	spin_unlock_irqrestore(&hdlc->state_lock, flags);
+	return NOTIFY_DONE;
 }
 
 
@@ -165,7 +161,7 @@ int hdlc_open(struct net_device *dev)
 
 	if (hdlc->carrier) {
 		printk(KERN_INFO "%s: Carrier detected\n", dev->name);
-		__hdlc_set_carrier_on(dev);
+		hdlc_proto_start(dev);
 	} else
 		printk(KERN_INFO "%s: No carrier\n", dev->name);
 
@@ -190,7 +186,7 @@ void hdlc_close(struct net_device *dev)
 
 	hdlc->open = 0;
 	if (hdlc->carrier)
-		__hdlc_set_carrier_off(dev);
+		hdlc_proto_stop(dev);
 
 	spin_unlock_irq(&hdlc->state_lock);
 
@@ -303,7 +299,6 @@ MODULE_LICENSE("GPL v2");
 
 EXPORT_SYMBOL(hdlc_open);
 EXPORT_SYMBOL(hdlc_close);
-EXPORT_SYMBOL(hdlc_set_carrier);
 EXPORT_SYMBOL(hdlc_ioctl);
 EXPORT_SYMBOL(hdlc_setup);
 EXPORT_SYMBOL(alloc_hdlcdev);
@@ -315,9 +310,18 @@ static struct packet_type hdlc_packet_type = {
 };
 
 
+static struct notifier_block hdlc_notifier = {
+        .notifier_call = hdlc_device_event,
+};
+
+
 static int __init hdlc_module_init(void)
 {
+	int result;
+
 	printk(KERN_INFO "%s\n", version);
+	if ((result = register_netdevice_notifier(&hdlc_notifier)) != 0)
+                return result;
         dev_add_pack(&hdlc_packet_type);
 	return 0;
 }
@@ -327,6 +331,7 @@ static int __init hdlc_module_init(void)
 static void __exit hdlc_module_exit(void)
 {
 	dev_remove_pack(&hdlc_packet_type);
+	unregister_netdevice_notifier(&hdlc_notifier);
 }
 
 

drivers/net/wan/wanxl.c

@@ -149,7 +149,10 @@ static inline void wanxl_cable_intr(port_t *port)
 	printk(KERN_INFO "%s: %s%s module, %s cable%s%s\n",
 	       port->dev->name, pm, dte, cable, dsr, dcd);
 
-	hdlc_set_carrier(value & STATUS_CABLE_DCD, port->dev);
+	if (value & STATUS_CABLE_DCD)
+		netif_carrier_on(port->dev);
+	else
+		netif_carrier_off(port->dev);
 }
 
 

include/linux/hdlc.h

@@ -224,8 +224,6 @@ static __inline__ void debug_frame(const struct sk_buff *skb)
 int hdlc_open(struct net_device *dev);
 /* Must be called by hardware driver when HDLC device is being closed */
 void hdlc_close(struct net_device *dev);
-/* Called by hardware driver when DCD line level changes */
-void hdlc_set_carrier(int on, struct net_device *dev);
 
 /* May be used by hardware driver to gain control over HDLC device */
 static __inline__ void hdlc_proto_detach(hdlc_device *hdlc)

net/ax25/af_ax25.c

@@ -145,7 +145,7 @@ struct sock *ax25_find_listener(ax25_address *addr, int digi,
 	ax25_cb *s;
 	struct hlist_node *node;
 
-	spin_lock_bh(&ax25_list_lock);
+	spin_lock(&ax25_list_lock);
 	ax25_for_each(s, node, &ax25_list) {
 		if ((s->iamdigi && !digi) || (!s->iamdigi && digi))
 			continue;
@@ -154,12 +154,12 @@ struct sock *ax25_find_listener(ax25_address *addr, int digi,
 			/* If device is null we match any device */
 			if (s->ax25_dev == NULL || s->ax25_dev->dev == dev) {
 				sock_hold(s->sk);
-				spin_unlock_bh(&ax25_list_lock);
+				spin_unlock(&ax25_list_lock);
 				return s->sk;
 			}
 		}
 	}
-	spin_unlock_bh(&ax25_list_lock);
+	spin_unlock(&ax25_list_lock);
 
 	return NULL;
 }
@@ -174,7 +174,7 @@ struct sock *ax25_get_socket(ax25_address *my_addr, ax25_address *dest_addr,
 	ax25_cb *s;
 	struct hlist_node *node;
 
-	spin_lock_bh(&ax25_list_lock);
+	spin_lock(&ax25_list_lock);
 	ax25_for_each(s, node, &ax25_list) {
 		if (s->sk && !ax25cmp(&s->source_addr, my_addr) &&
 		    !ax25cmp(&s->dest_addr, dest_addr) &&
@@ -185,7 +185,7 @@ struct sock *ax25_get_socket(ax25_address *my_addr, ax25_address *dest_addr,
 		}
 	}
 
-	spin_unlock_bh(&ax25_list_lock);
+	spin_unlock(&ax25_list_lock);
 
 	return sk;
 }
@@ -235,7 +235,7 @@ void ax25_send_to_raw(ax25_address *addr, struct sk_buff *skb, int proto)
 	struct sk_buff *copy;
 	struct hlist_node *node;
 
-	spin_lock_bh(&ax25_list_lock);
+	spin_lock(&ax25_list_lock);
 	ax25_for_each(s, node, &ax25_list) {
 		if (s->sk != NULL && ax25cmp(&s->source_addr, addr) == 0 &&
 		    s->sk->sk_type == SOCK_RAW &&
@@ -248,7 +248,7 @@ void ax25_send_to_raw(ax25_address *addr, struct sk_buff *skb, int proto)
 				kfree_skb(copy);
 		}
 	}
-	spin_unlock_bh(&ax25_list_lock);
+	spin_unlock(&ax25_list_lock);
 }
 
 /*

net/ax25/ax25_ds_subr.c

@@ -80,7 +80,7 @@ void ax25_ds_enquiry_response(ax25_cb *ax25)
 	ax25_start_t3timer(ax25);
 	ax25_ds_set_timer(ax25->ax25_dev);
 
-	spin_lock_bh(&ax25_list_lock);
+	spin_lock(&ax25_list_lock);
 	ax25_for_each(ax25o, node, &ax25_list) {
 		if (ax25o == ax25)
 			continue;
@@ -106,7 +106,7 @@ void ax25_ds_enquiry_response(ax25_cb *ax25)
 		if (ax25o->state != AX25_STATE_0)
 			ax25_start_t3timer(ax25o);
 	}
-	spin_unlock_bh(&ax25_list_lock);
+	spin_unlock(&ax25_list_lock);
 }
 
 void ax25_ds_establish_data_link(ax25_cb *ax25)
@@ -162,13 +162,13 @@ static int ax25_check_dama_slave(ax25_dev *ax25_dev)
 	int res = 0;
 	struct hlist_node *node;
 
-	spin_lock_bh(&ax25_list_lock);
+	spin_lock(&ax25_list_lock);
 	ax25_for_each(ax25, node, &ax25_list)
 		if (ax25->ax25_dev == ax25_dev && (ax25->condition & AX25_COND_DAMA_MODE) && ax25->state > AX25_STATE_1) {
 			res = 1;
 			break;
 		}
-	spin_unlock_bh(&ax25_list_lock);
+	spin_unlock(&ax25_list_lock);
 
 	return res;
 }

net/ax25/ax25_ds_timer.c

@@ -85,7 +85,7 @@ static void ax25_ds_timeout(unsigned long arg)
 		return;
 	}
 
-	spin_lock_bh(&ax25_list_lock);
+	spin_lock(&ax25_list_lock);
 	ax25_for_each(ax25, node, &ax25_list) {
 		if (ax25->ax25_dev != ax25_dev || !(ax25->condition & AX25_COND_DAMA_MODE))
 			continue;
@@ -93,7 +93,7 @@ static void ax25_ds_timeout(unsigned long arg)
 		ax25_send_control(ax25, AX25_DISC, AX25_POLLON, AX25_COMMAND);
 		ax25_disconnect(ax25, ETIMEDOUT);
 	}
-	spin_unlock_bh(&ax25_list_lock);
+	spin_unlock(&ax25_list_lock);
 
 	ax25_dev_dama_off(ax25_dev);
 }

net/ax25/ax25_iface.c

@@ -66,10 +66,10 @@ int ax25_protocol_register(unsigned int pid,
 	protocol->pid  = pid;
 	protocol->func = func;
 
-	write_lock(&protocol_list_lock);
+	write_lock_bh(&protocol_list_lock);
 	protocol->next = protocol_list;
 	protocol_list  = protocol;
-	write_unlock(&protocol_list_lock);
+	write_unlock_bh(&protocol_list_lock);
 
 	return 1;
 }
@@ -80,16 +80,16 @@ void ax25_protocol_release(unsigned int pid)
 {
 	struct protocol_struct *s, *protocol;
 
-	write_lock(&protocol_list_lock);
+	write_lock_bh(&protocol_list_lock);
 	protocol = protocol_list;
 	if (protocol == NULL) {
-		write_unlock(&protocol_list_lock);
+		write_unlock_bh(&protocol_list_lock);
 		return;
 	}
 
 	if (protocol->pid == pid) {
 		protocol_list = protocol->next;
-		write_unlock(&protocol_list_lock);
+		write_unlock_bh(&protocol_list_lock);
 		kfree(protocol);
 		return;
 	}
@@ -98,14 +98,14 @@ void ax25_protocol_release(unsigned int pid)
 		if (protocol->next->pid == pid) {
 			s = protocol->next;
 			protocol->next = protocol->next->next;
-			write_unlock(&protocol_list_lock);
+			write_unlock_bh(&protocol_list_lock);
 			kfree(s);
 			return;
 		}
 
 		protocol = protocol->next;
 	}
-	write_unlock(&protocol_list_lock);
+	write_unlock_bh(&protocol_list_lock);
 }
 
 EXPORT_SYMBOL(ax25_protocol_release);
@@ -266,13 +266,13 @@ int ax25_protocol_is_registered(unsigned int pid)
 	struct protocol_struct *protocol;
 	int res = 0;
 
-	read_lock(&protocol_list_lock);
+	read_lock_bh(&protocol_list_lock);
 	for (protocol = protocol_list; protocol != NULL; protocol = protocol->next)
 		if (protocol->pid == pid) {
 			res = 1;
 			break;
 		}
-	read_unlock(&protocol_list_lock);
+	read_unlock_bh(&protocol_list_lock);
 
 	return res;
 }

net/bluetooth/cmtp/capi.c

@@ -75,15 +75,13 @@
 
 static struct cmtp_application *cmtp_application_add(struct cmtp_session *session, __u16 appl)
 {
-	struct cmtp_application *app = kmalloc(sizeof(*app), GFP_KERNEL);
+	struct cmtp_application *app = kzalloc(sizeof(*app), GFP_KERNEL);
 
 	BT_DBG("session %p application %p appl %d", session, app, appl);
 
 	if (!app)
 		return NULL;
 
-	memset(app, 0, sizeof(*app));
-
 	app->state = BT_OPEN;
 	app->appl = appl;
 

net/bluetooth/cmtp/core.c

@@ -335,10 +335,9 @@ int cmtp_add_connection(struct cmtp_connadd_req *req, struct socket *sock)
 	baswap(&src, &bt_sk(sock->sk)->src);
 	baswap(&dst, &bt_sk(sock->sk)->dst);
 
-	session = kmalloc(sizeof(struct cmtp_session), GFP_KERNEL);
+	session = kzalloc(sizeof(struct cmtp_session), GFP_KERNEL);
 	if (!session) 
 		return -ENOMEM;
-	memset(session, 0, sizeof(struct cmtp_session));
 
 	down_write(&cmtp_session_sem);
 

net/bluetooth/hci_core.c

@@ -336,9 +336,8 @@ void hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data)
 
 	if (!(e = hci_inquiry_cache_lookup(hdev, &data->bdaddr))) {
 		/* Entry not in the cache. Add new one. */
-		if (!(e = kmalloc(sizeof(struct inquiry_entry), GFP_ATOMIC)))
+		if (!(e = kzalloc(sizeof(struct inquiry_entry), GFP_ATOMIC)))
 			return;
-		memset(e, 0, sizeof(struct inquiry_entry));
 		e->next     = cache->list;
 		cache->list = e;
 	}
@@ -800,12 +799,10 @@ struct hci_dev *hci_alloc_dev(void)
 {
 	struct hci_dev *hdev;
 
-	hdev = kmalloc(sizeof(struct hci_dev), GFP_KERNEL);
+	hdev = kzalloc(sizeof(struct hci_dev), GFP_KERNEL);
 	if (!hdev)
 		return NULL;
 
-	memset(hdev, 0, sizeof(struct hci_dev));
-
 	skb_queue_head_init(&hdev->driver_init);
 
 	return hdev;

net/bluetooth/hidp/Kconfig

@@ -1,7 +1,6 @@
 config BT_HIDP
 	tristate "HIDP protocol support"
-	depends on BT && BT_L2CAP && (BROKEN || !S390)
-	select INPUT
+	depends on BT && BT_L2CAP && INPUT
 	help
 	  HIDP (Human Interface Device Protocol) is a transport layer
 	  for HID reports.  HIDP is required for the Bluetooth Human

net/bluetooth/hidp/core.c

@@ -582,10 +582,9 @@ int hidp_add_connection(struct hidp_connadd_req *req, struct socket *ctrl_sock,
 			bacmp(&bt_sk(ctrl_sock->sk)->dst, &bt_sk(intr_sock->sk)->dst))
 		return -ENOTUNIQ;
 
-	session = kmalloc(sizeof(struct hidp_session), GFP_KERNEL);
+	session = kzalloc(sizeof(struct hidp_session), GFP_KERNEL);
 	if (!session)
 		return -ENOMEM;
-	memset(session, 0, sizeof(struct hidp_session));
 
 	session->input = input_allocate_device();
 	if (!session->input) {

net/bluetooth/l2cap.c

@@ -185,7 +185,7 @@ 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);
+	write_lock_bh(&l->lock);
 	if (sk == l->head)
 		l->head = next;
 
@@ -193,7 +193,7 @@ static inline void l2cap_chan_unlink(struct l2cap_chan_list *l, struct sock *sk)
 		l2cap_pi(next)->prev_c = prev;
 	if (prev)
 		l2cap_pi(prev)->next_c = next;
-	write_unlock(&l->lock);
+	write_unlock_bh(&l->lock);
 
 	__sock_put(sk);
 }
@@ -313,9 +313,9 @@ static void l2cap_conn_del(struct hci_conn *hcon, int err)
 static inline void l2cap_chan_add(struct l2cap_conn *conn, struct sock *sk, struct sock *parent)
 {
 	struct l2cap_chan_list *l = &conn->chan_list;
-	write_lock(&l->lock);
+	write_lock_bh(&l->lock);
 	__l2cap_chan_add(conn, sk, parent);
-	write_unlock(&l->lock);
+	write_unlock_bh(&l->lock);
 }
 
 static inline u8 l2cap_get_ident(struct l2cap_conn *conn)
@@ -328,14 +328,14 @@ static inline u8 l2cap_get_ident(struct l2cap_conn *conn)
 	 *  200 - 254 are used by utilities like l2ping, etc.
 	 */
 
-	spin_lock(&conn->lock);
+	spin_lock_bh(&conn->lock);
 
 	if (++conn->tx_ident > 128)
 		conn->tx_ident = 1;
 
 	id = conn->tx_ident;
 
-	spin_unlock(&conn->lock);
+	spin_unlock_bh(&conn->lock);
 
 	return id;
 }
@@ -1416,11 +1416,11 @@ static inline int l2cap_connect_req(struct l2cap_conn *conn, struct l2cap_cmd_hd
 	if (!sk)
 		goto response;
 
-	write_lock(&list->lock);
+	write_lock_bh(&list->lock);
 
 	/* Check if we already have channel with that dcid */
 	if (__l2cap_get_chan_by_dcid(list, scid)) {
-		write_unlock(&list->lock);
+		write_unlock_bh(&list->lock);
 		sock_set_flag(sk, SOCK_ZAPPED);
 		l2cap_sock_kill(sk);
 		goto response;
@@ -1458,7 +1458,7 @@ static inline int l2cap_connect_req(struct l2cap_conn *conn, struct l2cap_cmd_hd
 	result = status = 0;
 
 done:
-	write_unlock(&list->lock);
+	write_unlock_bh(&list->lock);
 
 response:
 	bh_unlock_sock(parent);

net/bluetooth/rfcomm/core.c

@@ -273,10 +273,10 @@ static void rfcomm_dlc_clear_state(struct rfcomm_dlc *d)
 
 struct rfcomm_dlc *rfcomm_dlc_alloc(gfp_t prio)
 {
-	struct rfcomm_dlc *d = kmalloc(sizeof(*d), prio);
+	struct rfcomm_dlc *d = kzalloc(sizeof(*d), prio);
+
 	if (!d)
 		return NULL;
-	memset(d, 0, sizeof(*d));
 
 	init_timer(&d->timer);
 	d->timer.function = rfcomm_dlc_timeout;
@@ -289,6 +289,7 @@ struct rfcomm_dlc *rfcomm_dlc_alloc(gfp_t prio)
 	rfcomm_dlc_clear_state(d);
 	
 	BT_DBG("%p", d);
+
 	return d;
 }
 
@@ -522,10 +523,10 @@ int rfcomm_dlc_get_modem_status(struct rfcomm_dlc *d, u8 *v24_sig)
 /* ---- RFCOMM sessions ---- */
 static struct rfcomm_session *rfcomm_session_add(struct socket *sock, int state)
 {
-	struct rfcomm_session *s = kmalloc(sizeof(*s), GFP_KERNEL);
+	struct rfcomm_session *s = kzalloc(sizeof(*s), GFP_KERNEL);
+
 	if (!s)
 		return NULL;
-	memset(s, 0, sizeof(*s));
 
 	BT_DBG("session %p sock %p", s, sock);
 

net/bluetooth/rfcomm/tty.c

@@ -169,10 +169,9 @@ static int rfcomm_dev_add(struct rfcomm_dev_req *req, struct rfcomm_dlc *dlc)
 
 	BT_DBG("id %d channel %d", req->dev_id, req->channel);
 	
-	dev = kmalloc(sizeof(struct rfcomm_dev), GFP_KERNEL);
+	dev = kzalloc(sizeof(struct rfcomm_dev), GFP_KERNEL);
 	if (!dev)
 		return -ENOMEM;
-	memset(dev, 0, sizeof(struct rfcomm_dev));
 
 	write_lock_bh(&rfcomm_dev_lock);
 

net/bluetooth/sco.c

@@ -108,17 +108,14 @@ static void sco_sock_init_timer(struct sock *sk)
 static struct sco_conn *sco_conn_add(struct hci_conn *hcon, __u8 status)
 {
 	struct hci_dev *hdev = hcon->hdev;
-	struct sco_conn *conn;
-
-	if ((conn = hcon->sco_data))
-		return conn;
+	struct sco_conn *conn = hcon->sco_data;
 
-	if (status)
+	if (conn || status)
 		return conn;
 
-	if (!(conn = kmalloc(sizeof(struct sco_conn), GFP_ATOMIC)))
+	conn = kzalloc(sizeof(struct sco_conn), GFP_ATOMIC);
+	if (!conn)
 		return NULL;
-	memset(conn, 0, sizeof(struct sco_conn));
 
 	spin_lock_init(&conn->lock);
 
@@ -134,6 +131,7 @@ static struct sco_conn *sco_conn_add(struct hci_conn *hcon, __u8 status)
 		conn->mtu = 60;
 
 	BT_DBG("hcon %p conn %p", hcon, conn);
+
 	return conn;
 }
 

net/core/stream.c

@@ -196,15 +196,13 @@ EXPORT_SYMBOL(sk_stream_error);
 
 void __sk_stream_mem_reclaim(struct sock *sk)
 {
-	if (sk->sk_forward_alloc >= SK_STREAM_MEM_QUANTUM) {
-		atomic_sub(sk->sk_forward_alloc / SK_STREAM_MEM_QUANTUM,
-			   sk->sk_prot->memory_allocated);
-		sk->sk_forward_alloc &= SK_STREAM_MEM_QUANTUM - 1;
-		if (*sk->sk_prot->memory_pressure &&
-		    (atomic_read(sk->sk_prot->memory_allocated) <
-		     sk->sk_prot->sysctl_mem[0]))
-			*sk->sk_prot->memory_pressure = 0;
-	}
+	atomic_sub(sk->sk_forward_alloc / SK_STREAM_MEM_QUANTUM,
+		   sk->sk_prot->memory_allocated);
+	sk->sk_forward_alloc &= SK_STREAM_MEM_QUANTUM - 1;
+	if (*sk->sk_prot->memory_pressure &&
+	    (atomic_read(sk->sk_prot->memory_allocated) <
+	     sk->sk_prot->sysctl_mem[0]))
+		*sk->sk_prot->memory_pressure = 0;
 }
 
 EXPORT_SYMBOL(__sk_stream_mem_reclaim);

net/ipv4/fib_trie.c

@@ -1252,8 +1252,8 @@ fn_trie_insert(struct fib_table *tb, struct rtmsg *r, struct kern_rta *rta,
 	 */
 
 	if (!fa_head) {
-		fa_head = fib_insert_node(t, &err, key, plen);
 		err = 0;
+		fa_head = fib_insert_node(t, &err, key, plen);
 		if (err)
 			goto out_free_new_fa;
 	}

net/ipv4/ipcomp.c

@@ -70,7 +70,8 @@ static int ipcomp_decompress(struct xfrm_state *x, struct sk_buff *skb)
 	if (err)
 		goto out;
 		
-	skb_put(skb, dlen - plen);
+	skb->truesize += dlen - plen;
+	__skb_put(skb, dlen - plen);
 	memcpy(skb->data, scratch, dlen);
 out:	
 	put_cpu();

net/ipv4/tcp_highspeed.c

@@ -139,14 +139,19 @@ static void hstcp_cong_avoid(struct sock *sk, u32 adk, u32 rtt,
 				tp->snd_cwnd++;
 		}
 	} else {
-		/* Update AIMD parameters */
+		/* Update AIMD parameters.
+		 *
+		 * We want to guarantee that:
+		 *     hstcp_aimd_vals[ca->ai-1].cwnd <
+		 *     snd_cwnd <=
+		 *     hstcp_aimd_vals[ca->ai].cwnd
+		 */
 		if (tp->snd_cwnd > hstcp_aimd_vals[ca->ai].cwnd) {
 			while (tp->snd_cwnd > hstcp_aimd_vals[ca->ai].cwnd &&
 			       ca->ai < HSTCP_AIMD_MAX - 1)
 				ca->ai++;
-		} else if (tp->snd_cwnd < hstcp_aimd_vals[ca->ai].cwnd) {
-			while (tp->snd_cwnd > hstcp_aimd_vals[ca->ai].cwnd &&
-			       ca->ai > 0)
+		} else if (ca->ai && tp->snd_cwnd <= hstcp_aimd_vals[ca->ai-1].cwnd) {
+			while (ca->ai && tp->snd_cwnd <= hstcp_aimd_vals[ca->ai-1].cwnd)
 				ca->ai--;
 		}
 

net/ipv6/addrconf.c

@@ -508,6 +508,26 @@ void inet6_ifa_finish_destroy(struct inet6_ifaddr *ifp)
 	kfree(ifp);
 }
 
+static void
+ipv6_link_dev_addr(struct inet6_dev *idev, struct inet6_ifaddr *ifp)
+{
+	struct inet6_ifaddr *ifa, **ifap;
+	int ifp_scope = ipv6_addr_src_scope(&ifp->addr);
+
+	/*
+	 * Each device address list is sorted in order of scope -
+	 * global before linklocal.
+	 */
+	for (ifap = &idev->addr_list; (ifa = *ifap) != NULL;
+	     ifap = &ifa->if_next) {
+		if (ifp_scope >= ipv6_addr_src_scope(&ifa->addr))
+			break;
+	}
+
+	ifp->if_next = *ifap;
+	*ifap = ifp;
+}
+
 /* On success it returns ifp with increased reference count */
 
 static struct inet6_ifaddr *
@@ -573,8 +593,7 @@ ipv6_add_addr(struct inet6_dev *idev, const struct in6_addr *addr, int pfxlen,
 
 	write_lock(&idev->lock);
 	/* Add to inet6_dev unicast addr list. */
-	ifa->if_next = idev->addr_list;
-	idev->addr_list = ifa;
+	ipv6_link_dev_addr(idev, ifa);
 
 #ifdef CONFIG_IPV6_PRIVACY
 	if (ifa->flags&IFA_F_TEMPORARY) {
@@ -987,7 +1006,7 @@ int ipv6_dev_get_saddr(struct net_device *daddr_dev,
 					continue;
 			} else if (score.scope < hiscore.scope) {
 				if (score.scope < daddr_scope)
-					continue;
+					break; /* addresses sorted by scope */
 				else {
 					score.rule = 2;
 					goto record_it;

net/ipv6/ipcomp6.c

@@ -109,7 +109,8 @@ static int ipcomp6_input(struct xfrm_state *x, struct sk_buff *skb)
 		goto out_put_cpu;
 	}
 
-	skb_put(skb, dlen - plen);
+	skb->truesize += dlen - plen;
+	__skb_put(skb, dlen - plen);
 	memcpy(skb->data, scratch, dlen);
 	err = ipch->nexthdr;
 

net/netrom/af_netrom.c

@@ -65,6 +65,14 @@ static DEFINE_SPINLOCK(nr_list_lock);
 
 static const struct proto_ops nr_proto_ops;
 
+/*
+ * NETROM network devices are virtual network devices encapsulating NETROM
+ * frames into AX.25 which will be sent through an AX.25 device, so form a
+ * special "super class" of normal net devices; split their locks off into a
+ * separate class since they always nest.
+ */
+static struct lock_class_key nr_netdev_xmit_lock_key;
+
 /*
  *	Socket removal during an interrupt is now safe.
  */
@@ -986,18 +994,18 @@ int nr_rx_frame(struct sk_buff *skb, struct net_device *dev)
 	nr_make->vl        = 0;
 	nr_make->state     = NR_STATE_3;
 	sk_acceptq_added(sk);
-
-	nr_insert_socket(make);
-
 	skb_queue_head(&sk->sk_receive_queue, skb);
 
-	nr_start_heartbeat(make);
-	nr_start_idletimer(make);
-
 	if (!sock_flag(sk, SOCK_DEAD))
 		sk->sk_data_ready(sk, skb->len);
 
 	bh_unlock_sock(sk);
+
+	nr_insert_socket(make);
+
+	nr_start_heartbeat(make);
+	nr_start_idletimer(make);
+
 	return 1;
 }
 
@@ -1405,6 +1413,7 @@ static int __init nr_proto_init(void)
 			free_netdev(dev);
 			goto fail;
 		}
+		lockdep_set_class(&dev->_xmit_lock, &nr_netdev_xmit_lock_key);
 		dev_nr[i] = dev;
 	}
 

net/netrom/nr_timer.c

@@ -138,8 +138,8 @@ static void nr_heartbeat_expiry(unsigned long param)
 		if (sock_flag(sk, SOCK_DESTROY) ||
 		    (sk->sk_state == TCP_LISTEN && sock_flag(sk, SOCK_DEAD))) {
 			sock_hold(sk);
-			nr_destroy_socket(sk);
 			bh_unlock_sock(sk);
+			nr_destroy_socket(sk);
 			sock_put(sk);
 			return;
 		}

net/rose/af_rose.c

@@ -66,6 +66,14 @@ static struct proto_ops rose_proto_ops;
 
 ax25_address rose_callsign;
 
+/*
+ * ROSE network devices are virtual network devices encapsulating ROSE
+ * frames into AX.25 which will be sent through an AX.25 device, so form a
+ * special "super class" of normal net devices; split their locks off into a
+ * separate class since they always nest.
+ */
+static struct lock_class_key rose_netdev_xmit_lock_key;
+
 /*
  *	Convert a ROSE address into text.
  */
@@ -1515,6 +1523,7 @@ static int __init rose_proto_init(void)
 			free_netdev(dev);
 			goto fail;
 		}
+		lockdep_set_class(&dev->_xmit_lock, &rose_netdev_xmit_lock_key);
 		dev_rose[i] = dev;
 	}
 

net/sched/act_api.c

@@ -884,8 +884,6 @@ static int __init tc_action_init(void)
 		link_p[RTM_GETACTION-RTM_BASE].dumpit = tc_dump_action;
 	}
 
-	printk("TC classifier action (bugs to netdev@vger.kernel.org cc "
-	       "hadi@cyberus.ca)\n");
 	return 0;
 }