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

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (30 commits)
  ctcm: rename READ/WRITE defines to avoid redefinitions
  claw: rename READ/WRITE defines to avoid redefinitions
  phylib: available for any speed ethernet
  can: add limit for nframes and clean up signed/unsigned variables
  pkt_sched: Check .walk and .leaf class handlers
  pkt_sched: Fix sch_sfq vs tc_modify_qdisc oops
  caif-spi: Bugfix SPI_DATA_POS settings were inverted.
  caif: Bugfix - Increase default headroom size for control channel.
  net: make netpoll_rx return bool for !CONFIG_NETPOLL
  Bluetooth: Use 3-DH5 payload size for default ERTM max PDU size
  Bluetooth: Fix incorrect setting of remote_tx_win for L2CAP ERTM
  Bluetooth: Change default L2CAP ERTM retransmit timeout
  Bluetooth: Fix endianness issue with L2CAP MPS configuration
  net: Use NET_XMIT_SUCCESS where possible.
  isdn: mISDN: call pci_disable_device() if pci_probe() failed
  isdn: avm: call pci_disable_device() if pci_probe() failed
  isdn: avm: call pci_disable_device() if pci_probe() failed
  usbnet: rx_submit() should return an error code.
  pkt_sched: Add some basic qdisc class ops verification. Was: [PATCH] sfq: add dummy bind/unbind handles
  pkt_sched: sch_sfq: Add dummy unbind_tcf and put handles. Was: [PATCH] sfq: add dummy bind/unbind handles
  ...

1 files changed, 16 insertions, 6 deletions

diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c
index 7f62e2dea28f..ca7fc9df1ccf 100644
--- a/drivers/net/usb/usbnet.c
+++ b/drivers/net/usb/usbnet.c
@@ -315,7 +315,7 @@ EXPORT_SYMBOL_GPL(usbnet_defer_kevent);
 
 static void rx_complete (struct urb *urb);
 
-static void rx_submit (struct usbnet *dev, struct urb *urb, gfp_t flags)
+static int rx_submit (struct usbnet *dev, struct urb *urb, gfp_t flags)
 {
 	struct sk_buff		*skb;
 	struct skb_data		*entry;
@@ -327,7 +327,7 @@ static void rx_submit (struct usbnet *dev, struct urb *urb, gfp_t flags)
 		netif_dbg(dev, rx_err, dev->net, "no rx skb\n");
 		usbnet_defer_kevent (dev, EVENT_RX_MEMORY);
 		usb_free_urb (urb);
-		return;
+		return -ENOMEM;
 	}
 	skb_reserve (skb, NET_IP_ALIGN);
 
@@ -357,6 +357,9 @@ static void rx_submit (struct usbnet *dev, struct urb *urb, gfp_t flags)
 			netif_dbg(dev, ifdown, dev->net, "device gone\n");
 			netif_device_detach (dev->net);
 			break;
+		case -EHOSTUNREACH:
+			retval = -ENOLINK;
+			break;
 		default:
 			netif_dbg(dev, rx_err, dev->net,
 				  "rx submit, %d\n", retval);
@@ -374,6 +377,7 @@ static void rx_submit (struct usbnet *dev, struct urb *urb, gfp_t flags)
 		dev_kfree_skb_any (skb);
 		usb_free_urb (urb);
 	}
+	return retval;
 }
 
 
@@ -912,6 +916,7 @@ fail_halt:
 	/* tasklet could resubmit itself forever if memory is tight */
 	if (test_bit (EVENT_RX_MEMORY, &dev->flags)) {
 		struct urb	*urb = NULL;
+		int resched = 1;
 
 		if (netif_running (dev->net))
 			urb = usb_alloc_urb (0, GFP_KERNEL);
@@ -922,10 +927,12 @@ fail_halt:
 			status = usb_autopm_get_interface(dev->intf);
 			if (status < 0)
 				goto fail_lowmem;
-			rx_submit (dev, urb, GFP_KERNEL);
+			if (rx_submit (dev, urb, GFP_KERNEL) == -ENOLINK)
+				resched = 0;
 			usb_autopm_put_interface(dev->intf);
 fail_lowmem:
-			tasklet_schedule (&dev->bh);
+			if (resched)
+				tasklet_schedule (&dev->bh);
 		}
 	}
 
@@ -1175,8 +1182,11 @@ static void usbnet_bh (unsigned long param)
 			// don't refill the queue all at once
 			for (i = 0; i < 10 && dev->rxq.qlen < qlen; i++) {
 				urb = usb_alloc_urb (0, GFP_ATOMIC);
-				if (urb != NULL)
-					rx_submit (dev, urb, GFP_ATOMIC);
+				if (urb != NULL) {
+					if (rx_submit (dev, urb, GFP_ATOMIC) ==
+					    -ENOLINK)
+						return;
+				}
 			}
 			if (temp != dev->rxq.qlen)
 				netif_dbg(dev, link, dev->net,