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

* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6:
  [IRDA] irda-usb: use NULL instead of 0
  [IPV4]: Remove likely in ip_rcv_finish()
  [NET]: Create netdev attribute_groups with class_device_add
  [CLASS DEVICE]: add attribute_group creation

drivers/base/class.c

@@ -456,6 +456,35 @@ static void class_device_remove_attrs(struct class_device * cd)
 	}
 }
 
+static int class_device_add_groups(struct class_device * cd)
+{
+	int i;
+	int error = 0;
+
+	if (cd->groups) {
+		for (i = 0; cd->groups[i]; i++) {
+			error = sysfs_create_group(&cd->kobj, cd->groups[i]);
+			if (error) {
+				while (--i >= 0)
+					sysfs_remove_group(&cd->kobj, cd->groups[i]);
+				goto out;
+			}
+		}
+	}
+out:
+	return error;
+}
+
+static void class_device_remove_groups(struct class_device * cd)
+{
+	int i;
+	if (cd->groups) {
+		for (i = 0; cd->groups[i]; i++) {
+			sysfs_remove_group(&cd->kobj, cd->groups[i]);
+		}
+	}
+}
+
 static ssize_t show_dev(struct class_device *class_dev, char *buf)
 {
 	return print_dev_t(buf, class_dev->devt);
@@ -559,6 +588,8 @@ int class_device_add(struct class_device *class_dev)
 				  class_name);
 	}
 
+	class_device_add_groups(class_dev);
+
 	kobject_uevent(&class_dev->kobj, KOBJ_ADD);
 
 	/* notify any interfaces this device is now here */
@@ -672,6 +703,7 @@ void class_device_del(struct class_device *class_dev)
 	if (class_dev->devt_attr)
 		class_device_remove_file(class_dev, class_dev->devt_attr);
 	class_device_remove_attrs(class_dev);
+	class_device_remove_groups(class_dev);
 
 	kobject_uevent(&class_dev->kobj, KOBJ_REMOVE);
 	kobject_del(&class_dev->kobj);

drivers/net/irda/irda-usb.c

@@ -1778,7 +1778,7 @@ static int irda_usb_probe(struct usb_interface *intf,
 
 	if (self->needspatch) {
 		ret = usb_control_msg (self->usbdev, usb_sndctrlpipe (self->usbdev, 0),
-				       0x02, 0x40, 0, 0, 0, 0, msecs_to_jiffies(500));
+				       0x02, 0x40, 0, 0, NULL, 0, 500);
 		if (ret < 0) {
 			IRDA_DEBUG (0, "usb_control_msg failed %d\n", ret);
 			goto err_out_3;

include/linux/device.h

@@ -200,6 +200,7 @@ extern int class_device_create_file(struct class_device *,
  * @node: for internal use by the driver core only.
  * @kobj: for internal use by the driver core only.
  * @devt_attr: for internal use by the driver core only.
+ * @groups: optional additional groups to be created
  * @dev: if set, a symlink to the struct device is created in the sysfs
  * directory for this struct class device.
  * @class_data: pointer to whatever you want to store here for this struct
@@ -228,6 +229,7 @@ struct class_device {
 	struct device		* dev;		/* not necessary, but nice to have */
 	void			* class_data;	/* class-specific data */
 	struct class_device	*parent;	/* parent of this child device, if there is one */
+	struct attribute_group  ** groups;	/* optional groups */
 
 	void	(*release)(struct class_device *dev);
 	int	(*uevent)(struct class_device *dev, char **envp,

include/linux/netdevice.h

@@ -506,6 +506,8 @@ struct net_device
 
 	/* class/net/name entry */
 	struct class_device	class_dev;
+	/* space for optional statistics and wireless sysfs groups */
+	struct attribute_group  *sysfs_groups[3];
 };
 
 #define	NETDEV_ALIGN		32

net/core/dev.c

@@ -3043,11 +3043,11 @@ void netdev_run_todo(void)
 
 		switch(dev->reg_state) {
 		case NETREG_REGISTERING:
-			dev->reg_state = NETREG_REGISTERED;
 			err = netdev_register_sysfs(dev);
 			if (err)
 				printk(KERN_ERR "%s: failed sysfs registration (%d)\n",
 				       dev->name, err);
+			dev->reg_state = NETREG_REGISTERED;
 			break;
 
 		case NETREG_UNREGISTERING:

net/core/net-sysfs.c

@@ -29,7 +29,7 @@ static const char fmt_ulong[] = "%lu\n";
 
 static inline int dev_isalive(const struct net_device *dev) 
 {
-	return dev->reg_state == NETREG_REGISTERED;
+	return dev->reg_state <= NETREG_REGISTERED;
 }
 
 /* use same locking rules as GIF* ioctl's */
@@ -445,58 +445,33 @@ static struct class net_class = {
 
 void netdev_unregister_sysfs(struct net_device * net)
 {
-	struct class_device * class_dev = &(net->class_dev);
+	class_device_del(&(net->class_dev));
-
-	if (net->get_stats)
-		sysfs_remove_group(&class_dev->kobj, &netstat_group);
-
-#ifdef WIRELESS_EXT
-	if (net->get_wireless_stats || (net->wireless_handlers &&
-			net->wireless_handlers->get_wireless_stats))
-		sysfs_remove_group(&class_dev->kobj, &wireless_group);
-#endif
-	class_device_del(class_dev);
-
 }
 
 /* Create sysfs entries for network device. */
 int netdev_register_sysfs(struct net_device *net)
 {
 	struct class_device *class_dev = &(net->class_dev);
-	int ret;
+	struct attribute_group **groups = net->sysfs_groups;
 
+	class_device_initialize(class_dev);
 	class_dev->class = &net_class;
 	class_dev->class_data = net;
+	class_dev->groups = groups;
 
+	BUILD_BUG_ON(BUS_ID_SIZE < IFNAMSIZ);
 	strlcpy(class_dev->class_id, net->name, BUS_ID_SIZE);
-	if ((ret = class_device_register(class_dev)))
-		goto out;
 
-	if (net->get_stats &&
+	if (net->get_stats)
-	    (ret = sysfs_create_group(&class_dev->kobj, &netstat_group)))
+		*groups++ = &netstat_group;
-		goto out_unreg; 
 
 #ifdef WIRELESS_EXT
-	if (net->get_wireless_stats || (net->wireless_handlers &&
+	if (net->get_wireless_stats
-			net->wireless_handlers->get_wireless_stats)) {
+	    || (net->wireless_handlers && net->wireless_handlers->get_wireless_stats))
-		ret = sysfs_create_group(&class_dev->kobj, &wireless_group);
+		*groups++ = &wireless_group;
-		if (ret)
-			goto out_cleanup;
-	}
-	return 0;
-out_cleanup:
-	if (net->get_stats)
-		sysfs_remove_group(&class_dev->kobj, &netstat_group);
-#else
-	return 0;
 #endif
 
-out_unreg:
+	return class_device_add(class_dev);
-	printk(KERN_WARNING "%s: sysfs attribute registration failed %d\n",
-	       net->name, ret);
-	class_device_unregister(class_dev);
-out:
-	return ret;
 }
 
 int netdev_sysfs_init(void)

net/ipv4/ip_input.c

@@ -337,7 +337,7 @@ static inline int ip_rcv_finish(struct sk_buff *skb)
 	 *	Initialise the virtual path cache for the packet. It describes
 	 *	how the packet travels inside Linux networking.
 	 */ 
-	if (likely(skb->dst == NULL)) {
+	if (skb->dst == NULL) {
 		int err = ip_route_input(skb, iph->daddr, iph->saddr, iph->tos,
 					 skb->dev);
 		if (unlikely(err)) {