1 files changed, 272 insertions, 177 deletions

diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c
index ca5ca5ae061d..7177abc78dc6 100644
--- a/drivers/net/usb/usbnet.c
+++ b/drivers/net/usb/usbnet.c
@@ -43,6 +43,7 @@
 #include <linux/mii.h>
 #include <linux/usb.h>
 #include <linux/usb/usbnet.h>
+#include <linux/slab.h>
 
 #define DRIVER_VERSION		"22-Aug-2005"
 
@@ -140,8 +141,8 @@ int usbnet_get_endpoints(struct usbnet *dev, struct usb_interface *intf)
 	if (!alt || !in || !out)
 		return -EINVAL;
 
-	if (alt->desc.bAlternateSetting != 0
-			|| !(dev->driver_info->flags & FLAG_NO_SETINT)) {
+	if (alt->desc.bAlternateSetting != 0 ||
+	    !(dev->driver_info->flags & FLAG_NO_SETINT)) {
 		tmp = usb_set_interface (dev->udev, alt->desc.bInterfaceNumber,
 				alt->desc.bAlternateSetting);
 		if (tmp < 0)
@@ -242,13 +243,13 @@ void usbnet_skb_return (struct usbnet *dev, struct sk_buff *skb)
 	dev->net->stats.rx_packets++;
 	dev->net->stats.rx_bytes += skb->len;
 
-	if (netif_msg_rx_status (dev))
-		devdbg (dev, "< rx, len %zu, type 0x%x",
-			skb->len + sizeof (struct ethhdr), skb->protocol);
+	netif_dbg(dev, rx_status, dev->net, "< rx, len %zu, type 0x%x\n",
+		  skb->len + sizeof (struct ethhdr), skb->protocol);
 	memset (skb->cb, 0, sizeof (struct skb_data));
 	status = netif_rx (skb);
-	if (status != NET_RX_SUCCESS && netif_msg_rx_err (dev))
-		devdbg (dev, "netif_rx status %d", status);
+	if (status != NET_RX_SUCCESS)
+		netif_dbg(dev, rx_err, dev->net,
+			  "netif_rx status %d\n", status);
 }
 EXPORT_SYMBOL_GPL(usbnet_skb_return);
 
@@ -313,9 +314,9 @@ void usbnet_defer_kevent (struct usbnet *dev, int work)
 {
 	set_bit (work, &dev->flags);
 	if (!schedule_work (&dev->kevent))
-		deverr (dev, "kevent %d may have been dropped", work);
+		netdev_err(dev->net, "kevent %d may have been dropped\n", work);
 	else
-		devdbg (dev, "kevent %d scheduled", work);
+		netdev_dbg(dev->net, "kevent %d scheduled\n", work);
 }
 EXPORT_SYMBOL_GPL(usbnet_defer_kevent);
 
@@ -332,8 +333,7 @@ static void rx_submit (struct usbnet *dev, struct urb *urb, gfp_t flags)
 	size_t			size = dev->rx_urb_size;
 
 	if ((skb = alloc_skb (size + NET_IP_ALIGN, flags)) == NULL) {
-		if (netif_msg_rx_err (dev))
-			devdbg (dev, "no rx skb");
+		netif_dbg(dev, rx_err, dev->net, "no rx skb\n");
 		usbnet_defer_kevent (dev, EVENT_RX_MEMORY);
 		usb_free_urb (urb);
 		return;
@@ -351,9 +351,10 @@ static void rx_submit (struct usbnet *dev, struct urb *urb, gfp_t flags)
 
 	spin_lock_irqsave (&dev->rxq.lock, lockflags);
 
-	if (netif_running (dev->net)
-			&& netif_device_present (dev->net)
-			&& !test_bit (EVENT_RX_HALT, &dev->flags)) {
+	if (netif_running (dev->net) &&
+	    netif_device_present (dev->net) &&
+	    !test_bit (EVENT_RX_HALT, &dev->flags) &&
+	    !test_bit (EVENT_DEV_ASLEEP, &dev->flags)) {
 		switch (retval = usb_submit_urb (urb, GFP_ATOMIC)) {
 		case -EPIPE:
 			usbnet_defer_kevent (dev, EVENT_RX_HALT);
@@ -362,21 +363,19 @@ static void rx_submit (struct usbnet *dev, struct urb *urb, gfp_t flags)
 			usbnet_defer_kevent (dev, EVENT_RX_MEMORY);
 			break;
 		case -ENODEV:
-			if (netif_msg_ifdown (dev))
-				devdbg (dev, "device gone");
+			netif_dbg(dev, ifdown, dev->net, "device gone\n");
 			netif_device_detach (dev->net);
 			break;
 		default:
-			if (netif_msg_rx_err (dev))
-				devdbg (dev, "rx submit, %d", retval);
+			netif_dbg(dev, rx_err, dev->net,
+				  "rx submit, %d\n", retval);
 			tasklet_schedule (&dev->bh);
 			break;
 		case 0:
 			__skb_queue_tail (&dev->rxq, skb);
 		}
 	} else {
-		if (netif_msg_ifdown (dev))
-			devdbg (dev, "rx: stopped");
+		netif_dbg(dev, ifdown, dev->net, "rx: stopped\n");
 		retval = -ENOLINK;
 	}
 	spin_unlock_irqrestore (&dev->rxq.lock, lockflags);
@@ -391,16 +390,15 @@ static void rx_submit (struct usbnet *dev, struct urb *urb, gfp_t flags)
 
 static inline void rx_process (struct usbnet *dev, struct sk_buff *skb)
 {
-	if (dev->driver_info->rx_fixup
-			&& !dev->driver_info->rx_fixup (dev, skb))
+	if (dev->driver_info->rx_fixup &&
+	    !dev->driver_info->rx_fixup (dev, skb))
 		goto error;
 	// else network stack removes extra byte if we forced a short packet
 
 	if (skb->len)
 		usbnet_skb_return (dev, skb);
 	else {
-		if (netif_msg_rx_err (dev))
-			devdbg (dev, "drop");
+		netif_dbg(dev, rx_err, dev->net, "drop\n");
 error:
 		dev->net->stats.rx_errors++;
 		skb_queue_tail (&dev->done, skb);
@@ -427,8 +425,8 @@ static void rx_complete (struct urb *urb)
 			entry->state = rx_cleanup;
 			dev->net->stats.rx_errors++;
 			dev->net->stats.rx_length_errors++;
-			if (netif_msg_rx_err (dev))
-				devdbg (dev, "rx length %d", skb->len);
+			netif_dbg(dev, rx_err, dev->net,
+				  "rx length %d\n", skb->len);
 		}
 		break;
 
@@ -445,8 +443,8 @@ static void rx_complete (struct urb *urb)
 	/* software-driven interface shutdown */
 	case -ECONNRESET:		/* async unlink */
 	case -ESHUTDOWN:		/* hardware gone */
-		if (netif_msg_ifdown (dev))
-			devdbg (dev, "rx shutdown, code %d", urb_status);
+		netif_dbg(dev, ifdown, dev->net,
+			  "rx shutdown, code %d\n", urb_status);
 		goto block;
 
 	/* we get controller i/o faults during khubd disconnect() delays.
@@ -459,8 +457,8 @@ static void rx_complete (struct urb *urb)
 		dev->net->stats.rx_errors++;
 		if (!timer_pending (&dev->delay)) {
 			mod_timer (&dev->delay, jiffies + THROTTLE_JIFFIES);
-			if (netif_msg_link (dev))
-				devdbg (dev, "rx throttle %d", urb_status);
+			netif_dbg(dev, link, dev->net,
+				  "rx throttle %d\n", urb_status);
 		}
 block:
 		entry->state = rx_cleanup;
@@ -476,23 +474,21 @@ block:
 	default:
 		entry->state = rx_cleanup;
 		dev->net->stats.rx_errors++;
-		if (netif_msg_rx_err (dev))
-			devdbg (dev, "rx status %d", urb_status);
+		netif_dbg(dev, rx_err, dev->net, "rx status %d\n", urb_status);
 		break;
 	}
 
 	defer_bh(dev, skb, &dev->rxq);
 
 	if (urb) {
-		if (netif_running (dev->net)
-				&& !test_bit (EVENT_RX_HALT, &dev->flags)) {
+		if (netif_running (dev->net) &&
+		    !test_bit (EVENT_RX_HALT, &dev->flags)) {
 			rx_submit (dev, urb, GFP_ATOMIC);
 			return;
 		}
 		usb_free_urb (urb);
 	}
-	if (netif_msg_rx_err (dev))
-		devdbg (dev, "no read resubmitted");
+	netif_dbg(dev, rx_err, dev->net, "no read resubmitted\n");
 }
 
 static void intr_complete (struct urb *urb)
@@ -509,15 +505,15 @@ static void intr_complete (struct urb *urb)
 	/* software-driven interface shutdown */
 	case -ENOENT:		/* urb killed */
 	case -ESHUTDOWN:	/* hardware gone */
-		if (netif_msg_ifdown (dev))
-			devdbg (dev, "intr shutdown, code %d", status);
+		netif_dbg(dev, ifdown, dev->net,
+			  "intr shutdown, code %d\n", status);
 		return;
 
 	/* NOTE:  not throttling like RX/TX, since this endpoint
 	 * already polls infrequently
 	 */
 	default:
-		devdbg (dev, "intr status %d", status);
+		netdev_dbg(dev->net, "intr status %d\n", status);
 		break;
 	}
 
@@ -526,8 +522,9 @@ static void intr_complete (struct urb *urb)
 
 	memset(urb->transfer_buffer, 0, urb->transfer_buffer_length);
 	status = usb_submit_urb (urb, GFP_ATOMIC);
-	if (status != 0 && netif_msg_timer (dev))
-		deverr(dev, "intr resubmit --> %d", status);
+	if (status != 0)
+		netif_err(dev, timer, dev->net,
+			  "intr resubmit --> %d\n", status);
 }
 
 /*-------------------------------------------------------------------------*/
@@ -535,8 +532,7 @@ void usbnet_pause_rx(struct usbnet *dev)
 {
 	set_bit(EVENT_RX_PAUSED, &dev->flags);
 
-	if (netif_msg_rx_status(dev))
-		devdbg(dev, "paused rx queue enabled");
+	netif_dbg(dev, rx_status, dev->net, "paused rx queue enabled\n");
 }
 EXPORT_SYMBOL_GPL(usbnet_pause_rx);
 
@@ -554,8 +550,8 @@ void usbnet_resume_rx(struct usbnet *dev)
 
 	tasklet_schedule(&dev->bh);
 
-	if (netif_msg_rx_status(dev))
-		devdbg(dev, "paused rx queue disabled, %d skbs requeued", num);
+	netif_dbg(dev, rx_status, dev->net,
+		  "paused rx queue disabled, %d skbs requeued\n", num);
 }
 EXPORT_SYMBOL_GPL(usbnet_resume_rx);
 
@@ -588,7 +584,7 @@ static int unlink_urbs (struct usbnet *dev, struct sk_buff_head *q)
 		// these (async) unlinks complete immediately
 		retval = usb_unlink_urb (urb);
 		if (retval != -EINPROGRESS && retval != 0)
-			devdbg (dev, "unlink urb err, %d", retval);
+			netdev_dbg(dev->net, "unlink urb err, %d\n", retval);
 		else
 			count++;
 	}
@@ -611,55 +607,60 @@ EXPORT_SYMBOL_GPL(usbnet_unlink_rx_urbs);
 /*-------------------------------------------------------------------------*/
 
 // precondition: never called in_interrupt
+static void usbnet_terminate_urbs(struct usbnet *dev)
+{
+	DECLARE_WAIT_QUEUE_HEAD_ONSTACK(unlink_wakeup);
+	DECLARE_WAITQUEUE(wait, current);
+	int temp;
+
+	/* ensure there are no more active urbs */
+	add_wait_queue(&unlink_wakeup, &wait);
+	set_current_state(TASK_UNINTERRUPTIBLE);
+	dev->wait = &unlink_wakeup;
+	temp = unlink_urbs(dev, &dev->txq) +
+		unlink_urbs(dev, &dev->rxq);
+
+	/* maybe wait for deletions to finish. */
+	while (!skb_queue_empty(&dev->rxq)
+		&& !skb_queue_empty(&dev->txq)
+		&& !skb_queue_empty(&dev->done)) {
+			schedule_timeout(UNLINK_TIMEOUT_MS);
+			set_current_state(TASK_UNINTERRUPTIBLE);
+			netif_dbg(dev, ifdown, dev->net,
+				  "waited for %d urb completions\n", temp);
+	}
+	set_current_state(TASK_RUNNING);
+	dev->wait = NULL;
+	remove_wait_queue(&unlink_wakeup, &wait);
+}
 
 int usbnet_stop (struct net_device *net)
 {
 	struct usbnet		*dev = netdev_priv(net);
 	struct driver_info	*info = dev->driver_info;
-	int			temp;
 	int			retval;
-	DECLARE_WAIT_QUEUE_HEAD_ONSTACK (unlink_wakeup);
-	DECLARE_WAITQUEUE (wait, current);
 
 	netif_stop_queue (net);
 
-	if (netif_msg_ifdown (dev))
-		devinfo (dev, "stop stats: rx/tx %ld/%ld, errs %ld/%ld",
-			net->stats.rx_packets, net->stats.tx_packets,
-			net->stats.rx_errors, net->stats.tx_errors
-			);
+	netif_info(dev, ifdown, dev->net,
+		   "stop stats: rx/tx %ld/%ld, errs %ld/%ld\n",
+		   net->stats.rx_packets, net->stats.tx_packets,
+		   net->stats.rx_errors, net->stats.tx_errors);
 
 	/* allow minidriver to stop correctly (wireless devices to turn off
 	 * radio etc) */
 	if (info->stop) {
 		retval = info->stop(dev);
-		if (retval < 0 && netif_msg_ifdown(dev))
-			devinfo(dev,
-				"stop fail (%d) usbnet usb-%s-%s, %s",
-				retval,
-				dev->udev->bus->bus_name, dev->udev->devpath,
-				info->description);
+		if (retval < 0)
+			netif_info(dev, ifdown, dev->net,
+				   "stop fail (%d) usbnet usb-%s-%s, %s\n",
+				   retval,
+				   dev->udev->bus->bus_name, dev->udev->devpath,
+				   info->description);
 	}
 
-	if (!(info->flags & FLAG_AVOID_UNLINK_URBS)) {
-		/* ensure there are no more active urbs */
-		add_wait_queue(&unlink_wakeup, &wait);
-		dev->wait = &unlink_wakeup;
-		temp = unlink_urbs(dev, &dev->txq) +
-			unlink_urbs(dev, &dev->rxq);
-
-		/* maybe wait for deletions to finish. */
-		while (!skb_queue_empty(&dev->rxq)
-				&& !skb_queue_empty(&dev->txq)
-				&& !skb_queue_empty(&dev->done)) {
-			msleep(UNLINK_TIMEOUT_MS);
-			if (netif_msg_ifdown(dev))
-				devdbg(dev, "waited for %d urb completions",
-					temp);
-		}
-		dev->wait = NULL;
-		remove_wait_queue(&unlink_wakeup, &wait);
-	}
+	if (!(info->flags & FLAG_AVOID_UNLINK_URBS))
+		usbnet_terminate_urbs(dev);
 
 	usb_kill_urb(dev->interrupt);
 
@@ -672,7 +673,10 @@ int usbnet_stop (struct net_device *net)
 	dev->flags = 0;
 	del_timer_sync (&dev->delay);
 	tasklet_kill (&dev->bh);
-	usb_autopm_put_interface(dev->intf);
+	if (info->manage_power)
+		info->manage_power(dev, 0);
+	else
+		usb_autopm_put_interface(dev->intf);
 
 	return 0;
 }
@@ -691,30 +695,29 @@ int usbnet_open (struct net_device *net)
 	struct driver_info	*info = dev->driver_info;
 
 	if ((retval = usb_autopm_get_interface(dev->intf)) < 0) {
-		if (netif_msg_ifup (dev))
-			devinfo (dev,
-				"resumption fail (%d) usbnet usb-%s-%s, %s",
-				retval,
-				dev->udev->bus->bus_name, dev->udev->devpath,
-			info->description);
+		netif_info(dev, ifup, dev->net,
+			   "resumption fail (%d) usbnet usb-%s-%s, %s\n",
+			   retval,
+			   dev->udev->bus->bus_name,
+			   dev->udev->devpath,
+			   info->description);
 		goto done_nopm;
 	}
 
 	// put into "known safe" state
 	if (info->reset && (retval = info->reset (dev)) < 0) {
-		if (netif_msg_ifup (dev))
-			devinfo (dev,
-				"open reset fail (%d) usbnet usb-%s-%s, %s",
-				retval,
-				dev->udev->bus->bus_name, dev->udev->devpath,
-			info->description);
+		netif_info(dev, ifup, dev->net,
+			   "open reset fail (%d) usbnet usb-%s-%s, %s\n",
+			   retval,
+			   dev->udev->bus->bus_name,
+			   dev->udev->devpath,
+			   info->description);
 		goto done;
 	}
 
 	// insist peer be connected
 	if (info->check_connect && (retval = info->check_connect (dev)) < 0) {
-		if (netif_msg_ifup (dev))
-			devdbg (dev, "can't open; %d", retval);
+		netif_dbg(dev, ifup, dev->net, "can't open; %d\n", retval);
 		goto done;
 	}
 
@@ -722,38 +725,34 @@ int usbnet_open (struct net_device *net)
 	if (dev->interrupt) {
 		retval = usb_submit_urb (dev->interrupt, GFP_KERNEL);
 		if (retval < 0) {
-			if (netif_msg_ifup (dev))
-				deverr (dev, "intr submit %d", retval);
+			netif_err(dev, ifup, dev->net,
+				  "intr submit %d\n", retval);
 			goto done;
 		}
 	}
 
 	netif_start_queue (net);
-	if (netif_msg_ifup (dev)) {
-		char	*framing;
-
-		if (dev->driver_info->flags & FLAG_FRAMING_NC)
-			framing = "NetChip";
-		else if (dev->driver_info->flags & FLAG_FRAMING_GL)
-			framing = "GeneSys";
-		else if (dev->driver_info->flags & FLAG_FRAMING_Z)
-			framing = "Zaurus";
-		else if (dev->driver_info->flags & FLAG_FRAMING_RN)
-			framing = "RNDIS";
-		else if (dev->driver_info->flags & FLAG_FRAMING_AX)
-			framing = "ASIX";
-		else
-			framing = "simple";
-
-		devinfo (dev, "open: enable queueing "
-				"(rx %d, tx %d) mtu %d %s framing",
-			(int)RX_QLEN (dev), (int)TX_QLEN (dev), dev->net->mtu,
-			framing);
-	}
+	netif_info(dev, ifup, dev->net,
+		   "open: enable queueing (rx %d, tx %d) mtu %d %s framing\n",
+		   (int)RX_QLEN(dev), (int)TX_QLEN(dev),
+		   dev->net->mtu,
+		   (dev->driver_info->flags & FLAG_FRAMING_NC) ? "NetChip" :
+		   (dev->driver_info->flags & FLAG_FRAMING_GL) ? "GeneSys" :
+		   (dev->driver_info->flags & FLAG_FRAMING_Z) ? "Zaurus" :
+		   (dev->driver_info->flags & FLAG_FRAMING_RN) ? "RNDIS" :
+		   (dev->driver_info->flags & FLAG_FRAMING_AX) ? "ASIX" :
+		   "simple");
 
 	// delay posting reads until we're fully open
 	tasklet_schedule (&dev->bh);
+	if (info->manage_power) {
+		retval = info->manage_power(dev, 1);
+		if (retval < 0)
+			goto done;
+		usb_autopm_put_interface(dev->intf);
+	}
 	return retval;
+
 done:
 	usb_autopm_put_interface(dev->intf);
 done_nopm:
@@ -881,13 +880,18 @@ kevent (struct work_struct *work)
 	/* usb_clear_halt() needs a thread context */
 	if (test_bit (EVENT_TX_HALT, &dev->flags)) {
 		unlink_urbs (dev, &dev->txq);
+		status = usb_autopm_get_interface(dev->intf);
+		if (status < 0)
+			goto fail_pipe;
 		status = usb_clear_halt (dev->udev, dev->out);
-		if (status < 0
-				&& status != -EPIPE
-				&& status != -ESHUTDOWN) {
+		usb_autopm_put_interface(dev->intf);
+		if (status < 0 &&
+		    status != -EPIPE &&
+		    status != -ESHUTDOWN) {
 			if (netif_msg_tx_err (dev))
-				deverr (dev, "can't clear tx halt, status %d",
-					status);
+fail_pipe:
+				netdev_err(dev->net, "can't clear tx halt, status %d\n",
+					   status);
 		} else {
 			clear_bit (EVENT_TX_HALT, &dev->flags);
 			if (status != -ESHUTDOWN)
@@ -896,13 +900,18 @@ kevent (struct work_struct *work)
 	}
 	if (test_bit (EVENT_RX_HALT, &dev->flags)) {
 		unlink_urbs (dev, &dev->rxq);
+		status = usb_autopm_get_interface(dev->intf);
+		if (status < 0)
+			goto fail_halt;
 		status = usb_clear_halt (dev->udev, dev->in);
-		if (status < 0
-				&& status != -EPIPE
-				&& status != -ESHUTDOWN) {
+		usb_autopm_put_interface(dev->intf);
+		if (status < 0 &&
+		    status != -EPIPE &&
+		    status != -ESHUTDOWN) {
 			if (netif_msg_rx_err (dev))
-				deverr (dev, "can't clear rx halt, status %d",
-					status);
+fail_halt:
+				netdev_err(dev->net, "can't clear rx halt, status %d\n",
+					   status);
 		} else {
 			clear_bit (EVENT_RX_HALT, &dev->flags);
 			tasklet_schedule (&dev->bh);
@@ -919,7 +928,12 @@ kevent (struct work_struct *work)
 			clear_bit (EVENT_RX_MEMORY, &dev->flags);
 		if (urb != NULL) {
 			clear_bit (EVENT_RX_MEMORY, &dev->flags);
+			status = usb_autopm_get_interface(dev->intf);
+			if (status < 0)
+				goto fail_lowmem;
 			rx_submit (dev, urb, GFP_KERNEL);
+			usb_autopm_put_interface(dev->intf);
+fail_lowmem:
 			tasklet_schedule (&dev->bh);
 		}
 	}
@@ -929,17 +943,24 @@ kevent (struct work_struct *work)
 		int			retval = 0;
 
 		clear_bit (EVENT_LINK_RESET, &dev->flags);
+		status = usb_autopm_get_interface(dev->intf);
+		if (status < 0)
+			goto skip_reset;
 		if(info->link_reset && (retval = info->link_reset(dev)) < 0) {
-			devinfo(dev, "link reset failed (%d) usbnet usb-%s-%s, %s",
-				retval,
-				dev->udev->bus->bus_name, dev->udev->devpath,
-				info->description);
+			usb_autopm_put_interface(dev->intf);
+skip_reset:
+			netdev_info(dev->net, "link reset failed (%d) usbnet usb-%s-%s, %s\n",
+				    retval,
+				    dev->udev->bus->bus_name,
+				    dev->udev->devpath,
+				    info->description);
+		} else {
+			usb_autopm_put_interface(dev->intf);
 		}
 	}
 
 	if (dev->flags)
-		devdbg (dev, "kevent done, flags = 0x%lx",
-			dev->flags);
+		netdev_dbg(dev->net, "kevent done, flags = 0x%lx\n", dev->flags);
 }
 
 /*-------------------------------------------------------------------------*/
@@ -971,22 +992,23 @@ static void tx_complete (struct urb *urb)
 		case -EPROTO:
 		case -ETIME:
 		case -EILSEQ:
+			usb_mark_last_busy(dev->udev);
 			if (!timer_pending (&dev->delay)) {
 				mod_timer (&dev->delay,
 					jiffies + THROTTLE_JIFFIES);
-				if (netif_msg_link (dev))
-					devdbg (dev, "tx throttle %d",
-							urb->status);
+				netif_dbg(dev, link, dev->net,
+					  "tx throttle %d\n", urb->status);
 			}
 			netif_stop_queue (dev->net);
 			break;
 		default:
-			if (netif_msg_tx_err (dev))
-				devdbg (dev, "tx err %d", entry->urb->status);
+			netif_dbg(dev, tx_err, dev->net,
+				  "tx err %d\n", entry->urb->status);
 			break;
 		}
 	}
 
+	usb_autopm_put_interface_async(dev->intf);
 	urb->dev = NULL;
 	entry->state = tx_done;
 	defer_bh(dev, skb, &dev->txq);
@@ -1023,16 +1045,14 @@ netdev_tx_t usbnet_start_xmit (struct sk_buff *skb,
 	if (info->tx_fixup) {
 		skb = info->tx_fixup (dev, skb, GFP_ATOMIC);
 		if (!skb) {
-			if (netif_msg_tx_err (dev))
-				devdbg (dev, "can't tx_fixup skb");
+			netif_dbg(dev, tx_err, dev->net, "can't tx_fixup skb\n");
 			goto drop;
 		}
 	}
 	length = skb->len;
 
 	if (!(urb = usb_alloc_urb (0, GFP_ATOMIC))) {
-		if (netif_msg_tx_err (dev))
-			devdbg (dev, "no urb");
+		netif_dbg(dev, tx_err, dev->net, "no urb\n");
 		goto drop;
 	}
 
@@ -1057,16 +1077,36 @@ netdev_tx_t usbnet_start_xmit (struct sk_buff *skb,
 		}
 	}
 
-	spin_lock_irqsave (&dev->txq.lock, flags);
+	spin_lock_irqsave(&dev->txq.lock, flags);
+	retval = usb_autopm_get_interface_async(dev->intf);
+	if (retval < 0) {
+		spin_unlock_irqrestore(&dev->txq.lock, flags);
+		goto drop;
+	}
+
+#ifdef CONFIG_PM
+	/* if this triggers the device is still a sleep */
+	if (test_bit(EVENT_DEV_ASLEEP, &dev->flags)) {
+		/* transmission will be done in resume */
+		usb_anchor_urb(urb, &dev->deferred);
+		/* no use to process more packets */
+		netif_stop_queue(net);
+		spin_unlock_irqrestore(&dev->txq.lock, flags);
+		netdev_dbg(dev->net, "Delaying transmission for resumption\n");
+		goto deferred;
+	}
+#endif
 
 	switch ((retval = usb_submit_urb (urb, GFP_ATOMIC))) {
 	case -EPIPE:
 		netif_stop_queue (net);
 		usbnet_defer_kevent (dev, EVENT_TX_HALT);
+		usb_autopm_put_interface_async(dev->intf);
 		break;
 	default:
-		if (netif_msg_tx_err (dev))
-			devdbg (dev, "tx: submit urb err %d", retval);
+		usb_autopm_put_interface_async(dev->intf);
+		netif_dbg(dev, tx_err, dev->net,
+			  "tx: submit urb err %d\n", retval);
 		break;
 	case 0:
 		net->trans_start = jiffies;
@@ -1077,17 +1117,18 @@ netdev_tx_t usbnet_start_xmit (struct sk_buff *skb,
 	spin_unlock_irqrestore (&dev->txq.lock, flags);
 
 	if (retval) {
-		if (netif_msg_tx_err (dev))
-			devdbg (dev, "drop, code %d", retval);
+		netif_dbg(dev, tx_err, dev->net, "drop, code %d\n", retval);
 drop:
 		dev->net->stats.tx_dropped++;
 		if (skb)
 			dev_kfree_skb_any (skb);
 		usb_free_urb (urb);
-	} else if (netif_msg_tx_queued (dev)) {
-		devdbg (dev, "> tx, len %d, type 0x%x",
-			length, skb->protocol);
-	}
+	} else
+		netif_dbg(dev, tx_queued, dev->net,
+			  "> tx, len %d, type 0x%x\n", length, skb->protocol);
+#ifdef CONFIG_PM
+deferred:
+#endif
 	return NETDEV_TX_OK;
 }
 EXPORT_SYMBOL_GPL(usbnet_start_xmit);
@@ -1115,7 +1156,7 @@ static void usbnet_bh (unsigned long param)
 			dev_kfree_skb (skb);
 			continue;
 		default:
-			devdbg (dev, "bogus skb state %d", entry->state);
+			netdev_dbg(dev->net, "bogus skb state %d\n", entry->state);
 		}
 	}
 
@@ -1126,10 +1167,10 @@ static void usbnet_bh (unsigned long param)
 		}
 
 	// or are we maybe short a few urbs?
-	} else if (netif_running (dev->net)
-			&& netif_device_present (dev->net)
-			&& !timer_pending (&dev->delay)
-			&& !test_bit (EVENT_RX_HALT, &dev->flags)) {
+	} else if (netif_running (dev->net) &&
+		   netif_device_present (dev->net) &&
+		   !timer_pending (&dev->delay) &&
+		   !test_bit (EVENT_RX_HALT, &dev->flags)) {
 		int	temp = dev->rxq.qlen;
 		int	qlen = RX_QLEN (dev);
 
@@ -1143,9 +1184,10 @@ static void usbnet_bh (unsigned long param)
 				if (urb != NULL)
 					rx_submit (dev, urb, GFP_ATOMIC);
 			}
-			if (temp != dev->rxq.qlen && netif_msg_link (dev))
-				devdbg (dev, "rxqlen %d --> %d",
-						temp, dev->rxq.qlen);
+			if (temp != dev->rxq.qlen)
+				netif_dbg(dev, link, dev->net,
+					  "rxqlen %d --> %d\n",
+					  temp, dev->rxq.qlen);
 			if (dev->rxq.qlen < qlen)
 				tasklet_schedule (&dev->bh);
 		}
@@ -1176,11 +1218,10 @@ void usbnet_disconnect (struct usb_interface *intf)
 
 	xdev = interface_to_usbdev (intf);
 
-	if (netif_msg_probe (dev))
-		devinfo (dev, "unregister '%s' usb-%s-%s, %s",
-			intf->dev.driver->name,
-			xdev->bus->bus_name, xdev->devpath,
-			dev->driver_info->description);
+	netif_info(dev, probe, dev->net, "unregister '%s' usb-%s-%s, %s\n",
+		   intf->dev.driver->name,
+		   xdev->bus->bus_name, xdev->devpath,
+		   dev->driver_info->description);
 
 	net = dev->net;
 	unregister_netdev (net);
@@ -1210,6 +1251,14 @@ static const struct net_device_ops usbnet_netdev_ops = {
 
 // precondition: never called in_interrupt
 
+static struct device_type wlan_type = {
+	.name	= "wlan",
+};
+
+static struct device_type wwan_type = {
+	.name	= "wwan",
+};
+
 int
 usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod)
 {
@@ -1255,6 +1304,7 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod)
 	dev->bh.func = usbnet_bh;
 	dev->bh.data = (unsigned long) dev;
 	INIT_WORK (&dev->kevent, kevent);
+	init_usb_anchor(&dev->deferred);
 	dev->delay.function = usbnet_bh;
 	dev->delay.data = (unsigned long) dev;
 	init_timer (&dev->delay);
@@ -1289,12 +1339,15 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod)
 		// heuristic:  "usb%d" for links we know are two-host,
 		// else "eth%d" when there's reasonable doubt.  userspace
 		// can rename the link if it knows better.
-		if ((dev->driver_info->flags & FLAG_ETHER) != 0
-				&& (net->dev_addr [0] & 0x02) == 0)
+		if ((dev->driver_info->flags & FLAG_ETHER) != 0 &&
+		    (net->dev_addr [0] & 0x02) == 0)
 			strcpy (net->name, "eth%d");
 		/* WLAN devices should always be named "wlan%d" */
 		if ((dev->driver_info->flags & FLAG_WLAN) != 0)
 			strcpy(net->name, "wlan%d");
+		/* WWAN devices should always be named "wwan%d" */
+		if ((dev->driver_info->flags & FLAG_WWAN) != 0)
+			strcpy(net->name, "wwan%d");
 
 		/* maybe the remote can't receive an Ethernet MTU */
 		if (net->mtu > (dev->hard_mtu - net->hard_header_len))
@@ -1322,22 +1375,30 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod)
 	dev->maxpacket = usb_maxpacket (dev->udev, dev->out, 1);
 
 	SET_NETDEV_DEV(net, &udev->dev);
+
+	if ((dev->driver_info->flags & FLAG_WLAN) != 0)
+		SET_NETDEV_DEVTYPE(net, &wlan_type);
+	if ((dev->driver_info->flags & FLAG_WWAN) != 0)
+		SET_NETDEV_DEVTYPE(net, &wwan_type);
+
 	status = register_netdev (net);
 	if (status)
 		goto out3;
-	if (netif_msg_probe (dev))
-		devinfo (dev, "register '%s' at usb-%s-%s, %s, %pM",
-			udev->dev.driver->name,
-			xdev->bus->bus_name, xdev->devpath,
-			dev->driver_info->description,
-			net->dev_addr);
+	netif_info(dev, probe, dev->net,
+		   "register '%s' at usb-%s-%s, %s, %pM\n",
+		   udev->dev.driver->name,
+		   xdev->bus->bus_name, xdev->devpath,
+		   dev->driver_info->description,
+		   net->dev_addr);
 
 	// ok, it's ready to go.
 	usb_set_intfdata (udev, dev);
 
-	// start as if the link is up
 	netif_device_attach (net);
 
+	if (dev->driver_info->flags & FLAG_LINK_INTR)
+		netif_carrier_off(net);
+
 	return 0;
 
 out3:
@@ -1363,13 +1424,23 @@ int usbnet_suspend (struct usb_interface *intf, pm_message_t message)
 	struct usbnet		*dev = usb_get_intfdata(intf);
 
 	if (!dev->suspend_count++) {
+		spin_lock_irq(&dev->txq.lock);
+		/* don't autosuspend while transmitting */
+		if (dev->txq.qlen && (message.event & PM_EVENT_AUTO)) {
+			spin_unlock_irq(&dev->txq.lock);
+			return -EBUSY;
+		} else {
+			set_bit(EVENT_DEV_ASLEEP, &dev->flags);
+			spin_unlock_irq(&dev->txq.lock);
+		}
 		/*
 		 * accelerate emptying of the rx and queues, to avoid
 		 * having everything error out.
 		 */
 		netif_device_detach (dev->net);
-		(void) unlink_urbs (dev, &dev->rxq);
-		(void) unlink_urbs (dev, &dev->txq);
+		usbnet_terminate_urbs(dev);
+		usb_kill_urb(dev->interrupt);
+
 		/*
 		 * reattach so runtime management can use and
 		 * wake the device
@@ -1383,10 +1454,34 @@ EXPORT_SYMBOL_GPL(usbnet_suspend);
 int usbnet_resume (struct usb_interface *intf)
 {
 	struct usbnet		*dev = usb_get_intfdata(intf);
+	struct sk_buff          *skb;
+	struct urb              *res;
+	int                     retval;
+
+	if (!--dev->suspend_count) {
+		spin_lock_irq(&dev->txq.lock);
+		while ((res = usb_get_from_anchor(&dev->deferred))) {
+
+			printk(KERN_INFO"%s has delayed data\n", __func__);
+			skb = (struct sk_buff *)res->context;
+			retval = usb_submit_urb(res, GFP_ATOMIC);
+			if (retval < 0) {
+				dev_kfree_skb_any(skb);
+				usb_free_urb(res);
+				usb_autopm_put_interface_async(dev->intf);
+			} else {
+				dev->net->trans_start = jiffies;
+				__skb_queue_tail(&dev->txq, skb);
+			}
+		}
 
-	if (!--dev->suspend_count)
+		smp_mb();
+		clear_bit(EVENT_DEV_ASLEEP, &dev->flags);
+		spin_unlock_irq(&dev->txq.lock);
+		if (!(dev->txq.qlen >= TX_QLEN(dev)))
+			netif_start_queue(dev->net);
 		tasklet_schedule (&dev->bh);
-
+	}
 	return 0;
 }
 EXPORT_SYMBOL_GPL(usbnet_resume);