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

Pull networking updates from David Miller:
 "Highlights (1721 non-merge commits, this has to be a record of some
  sort):

   1) Add 'random' mode to team driver, from Jiri Pirko and Eric
      Dumazet.

   2) Make it so that any driver that supports configuration of multiple
      MAC addresses can provide the forwarding database add and del
      calls by providing a default implementation and hooking that up if
      the driver doesn't have an explicit set of handlers.  From Vlad
      Yasevich.

   3) Support GSO segmentation over tunnels and other encapsulating
      devices such as VXLAN, from Pravin B Shelar.

   4) Support L2 GRE tunnels in the flow dissector, from Michael Dalton.

   5) Implement Tail Loss Probe (TLP) detection in TCP, from Nandita
      Dukkipati.

   6) In the PHY layer, allow supporting wake-on-lan in situations where
      the PHY registers have to be written for it to be configured.

      Use it to support wake-on-lan in mv643xx_eth.

      From Michael Stapelberg.

   7) Significantly improve firewire IPV6 support, from YOSHIFUJI
      Hideaki.

   8) Allow multiple packets to be sent in a single transmission using
      network coding in batman-adv, from Martin Hundebøll.

   9) Add support for T5 cxgb4 chips, from Santosh Rastapur.

  10) Generalize the VXLAN forwarding tables so that there is more
      flexibility in configurating various aspects of the endpoints.
      From David Stevens.

  11) Support RSS and TSO in hardware over GRE tunnels in bxn2x driver,
      from Dmitry Kravkov.

  12) Zero copy support in nfnelink_queue, from Eric Dumazet and Pablo
      Neira Ayuso.

  13) Start adding networking selftests.

  14) In situations of overload on the same AF_PACKET fanout socket, or
      per-cpu packet receive queue, minimize drop by distributing the
      load to other cpus/fanouts.  From Willem de Bruijn and Eric
      Dumazet.

  15) Add support for new payload offset BPF instruction, from Daniel
      Borkmann.

  16) Convert several drivers over to mdoule_platform_driver(), from
      Sachin Kamat.

  17) Provide a minimal BPF JIT image disassembler userspace tool, from
      Daniel Borkmann.

  18) Rewrite F-RTO implementation in TCP to match the final
      specification of it in RFC4138 and RFC5682.  From Yuchung Cheng.

  19) Provide netlink socket diag of netlink sockets ("Yo dawg, I hear
      you like netlink, so I implemented netlink dumping of netlink
      sockets.") From Andrey Vagin.

  20) Remove ugly passing of rtnetlink attributes into rtnl_doit
      functions, from Thomas Graf.

  21) Allow userspace to be able to see if a configuration change occurs
      in the middle of an address or device list dump, from Nicolas
      Dichtel.

  22) Support RFC3168 ECN protection for ipv6 fragments, from Hannes
      Frederic Sowa.

  23) Increase accuracy of packet length used by packet scheduler, from
      Jason Wang.

  24) Beginning set of changes to make ipv4/ipv6 fragment handling more
      scalable and less susceptible to overload and locking contention,
      from Jesper Dangaard Brouer.

  25) Get rid of using non-type-safe NLMSG_* macros and use nlmsg_*()
      instead.  From Hong Zhiguo.

  26) Optimize route usage in IPVS by avoiding reference counting where
      possible, from Julian Anastasov.

  27) Convert IPVS schedulers to RCU, also from Julian Anastasov.

  28) Support cpu fanouts in xt_NFQUEUE netfilter target, from Holger
      Eitzenberger.

  29) Network namespace support for nf_log, ebt_log, xt_LOG, ipt_ULOG,
      nfnetlink_log, and nfnetlink_queue.  From Gao feng.

  30) Implement RFC3168 ECN protection, from Hannes Frederic Sowa.

  31) Support several new r8169 chips, from Hayes Wang.

  32) Support tokenized interface identifiers in ipv6, from Daniel
      Borkmann.

  33) Use usbnet_link_change() helper in USB net driver, from Ming Lei.

  34) Add 802.1ad vlan offload support, from Patrick McHardy.

  35) Support mmap() based netlink communication, also from Patrick
      McHardy.

  36) Support HW timestamping in mlx4 driver, from Amir Vadai.

  37) Rationalize AF_PACKET packet timestamping when transmitting, from
      Willem de Bruijn and Daniel Borkmann.

  38) Bring parity to what's provided by /proc/net/packet socket dumping
      and the info provided by netlink socket dumping of AF_PACKET
      sockets.  From Nicolas Dichtel.

  39) Fix peeking beyond zero sized SKBs in AF_UNIX, from Benjamin
      Poirier"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1722 commits)
  filter: fix va_list build error
  af_unix: fix a fatal race with bit fields
  bnx2x: Prevent memory leak when cnic is absent
  bnx2x: correct reading of speed capabilities
  net: sctp: attribute printl with __printf for gcc fmt checks
  netlink: kconfig: move mmap i/o into netlink kconfig
  netpoll: convert mutex into a semaphore
  netlink: Fix skb ref counting.
  net_sched: act_ipt forward compat with xtables
  mlx4_en: fix a build error on 32bit arches
  Revert "bnx2x: allow nvram test to run when device is down"
  bridge: avoid OOPS if root port not found
  drivers: net: cpsw: fix kernel warn on cpsw irq enable
  sh_eth: use random MAC address if no valid one supplied
  3c509.c: call SET_NETDEV_DEV for all device types (ISA/ISAPnP/EISA)
  tg3: fix to append hardware time stamping flags
  unix/stream: fix peeking with an offset larger than data in queue
  unix/dgram: fix peeking with an offset larger than data in queue
  unix/dgram: peek beyond 0-sized skbs
  openvswitch: Remove unneeded ovs_netdev_get_ifindex()
  ...

11 files changed, 185 insertions, 379 deletions

diff --git a/drivers/net/usb/asix_devices.c b/drivers/net/usb/asix_devices.c
index 70975346909..ad5d1e4384d 100644
--- a/drivers/net/usb/asix_devices.c
+++ b/drivers/net/usb/asix_devices.c
@@ -55,11 +55,7 @@ static void asix_status(struct usbnet *dev, struct urb *urb)
 	event = urb->transfer_buffer;
 	link = event->link & 0x01;
 	if (netif_carrier_ok(dev->net) != link) {
-		if (link) {
-			netif_carrier_on(dev->net);
-			usbnet_defer_kevent (dev, EVENT_LINK_RESET );
-		} else
-			netif_carrier_off(dev->net);
+		usbnet_link_change(dev, link, 1);
 		netdev_dbg(dev->net, "Link Status is: %d\n", link);
 	}
 }
diff --git a/drivers/net/usb/ax88179_178a.c b/drivers/net/usb/ax88179_178a.c
index 71c27d8d214..bd8758fa38c 100644
--- a/drivers/net/usb/ax88179_178a.c
+++ b/drivers/net/usb/ax88179_178a.c
@@ -352,11 +352,7 @@ static void ax88179_status(struct usbnet *dev, struct urb *urb)
 	link = (((__force u32)event->intdata1) & AX_INT_PPLS_LINK) >> 16;
 
 	if (netif_carrier_ok(dev->net) != link) {
-		if (link)
-			usbnet_defer_kevent(dev, EVENT_LINK_RESET);
-		else
-			netif_carrier_off(dev->net);
-
+		usbnet_link_change(dev, link, 1);
 		netdev_info(dev->net, "ax88179 - Link status is: %d\n", link);
 	}
 }
@@ -455,7 +451,7 @@ static int ax88179_resume(struct usb_interface *intf)
 	u16 tmp16;
 	u8 tmp8;
 
-	netif_carrier_off(dev->net);
+	usbnet_link_change(dev, 0, 0);
 
 	/* Power up ethernet PHY */
 	tmp16 = 0;
@@ -1068,7 +1064,7 @@ static int ax88179_bind(struct usbnet *dev, struct usb_interface *intf)
 	/* Restart autoneg */
 	mii_nway_restart(&dev->mii);
 
-	netif_carrier_off(dev->net);
+	usbnet_link_change(dev, 0, 0);
 
 	return 0;
 }
@@ -1356,7 +1352,7 @@ static int ax88179_reset(struct usbnet *dev)
 	/* Restart autoneg */
 	mii_nway_restart(&dev->mii);
 
-	netif_carrier_off(dev->net);
+	usbnet_link_change(dev, 0, 0);
 
 	return 0;
 }
diff --git a/drivers/net/usb/cdc_ether.c b/drivers/net/usb/cdc_ether.c
index 57136dc1b88..4ff71d619cd 100644
--- a/drivers/net/usb/cdc_ether.c
+++ b/drivers/net/usb/cdc_ether.c
@@ -406,10 +406,7 @@ void usbnet_cdc_status(struct usbnet *dev, struct urb *urb)
 	case USB_CDC_NOTIFY_NETWORK_CONNECTION:
 		netif_dbg(dev, timer, dev->net, "CDC: carrier %s\n",
 			  event->wValue ? "on" : "off");
-		if (event->wValue)
-			netif_carrier_on(dev->net);
-		else
-			netif_carrier_off(dev->net);
+		usbnet_link_change(dev, !!event->wValue, 0);
 		break;
 	case USB_CDC_NOTIFY_SPEED_CHANGE:	/* tx/rx rates */
 		netif_dbg(dev, timer, dev->net, "CDC: speed change (len %d)\n",
diff --git a/drivers/net/usb/cdc_mbim.c b/drivers/net/usb/cdc_mbim.c
index 32a76059e7d..872819851ae 100644
--- a/drivers/net/usb/cdc_mbim.c
+++ b/drivers/net/usb/cdc_mbim.c
@@ -101,7 +101,7 @@ static int cdc_mbim_bind(struct usbnet *dev, struct usb_interface *intf)
 	dev->net->flags |= IFF_NOARP;
 
 	/* no need to put the VLAN tci in the packet headers */
-	dev->net->features |= NETIF_F_HW_VLAN_TX;
+	dev->net->features |= NETIF_F_HW_VLAN_CTAG_TX;
 err:
 	return ret;
 }
@@ -221,7 +221,7 @@ static struct sk_buff *cdc_mbim_process_dgram(struct usbnet *dev, u8 *buf, size_
 
 	/* map MBIM session to VLAN */
 	if (tci)
-		vlan_put_tag(skb, tci);
+		vlan_put_tag(skb, htons(ETH_P_8021Q), tci);
 err:
 	return skb;
 }
diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c
index 4709fa3497c..43afde8f48d 100644
--- a/drivers/net/usb/cdc_ncm.c
+++ b/drivers/net/usb/cdc_ncm.c
@@ -362,8 +362,8 @@ int cdc_ncm_bind_common(struct usbnet *dev, struct usb_interface *intf, u8 data_
 	u8 iface_no;
 
 	ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
-	if (ctx == NULL)
-		return -ENODEV;
+	if (!ctx)
+		return -ENOMEM;
 
 	hrtimer_init(&ctx->tx_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
 	ctx->tx_timer.function = &cdc_ncm_tx_timer_cb;
@@ -610,7 +610,7 @@ static int cdc_ncm_bind(struct usbnet *dev, struct usb_interface *intf)
 	 * (carrier is OFF) during attach, so the IP network stack does not
 	 * start IPv6 negotiation and more.
 	 */
-	netif_carrier_off(dev->net);
+	usbnet_link_change(dev, 0, 0);
 	return ret;
 }
 
@@ -1106,12 +1106,9 @@ static void cdc_ncm_status(struct usbnet *dev, struct urb *urb)
 			" %sconnected\n",
 			ctx->netdev->name, ctx->connected ? "" : "dis");
 
-		if (ctx->connected)
-			netif_carrier_on(dev->net);
-		else {
-			netif_carrier_off(dev->net);
+		usbnet_link_change(dev, ctx->connected, 0);
+		if (!ctx->connected)
 			ctx->tx_speed = ctx->rx_speed = 0;
-		}
 		break;
 
 	case USB_CDC_NOTIFY_SPEED_CHANGE:
@@ -1124,8 +1121,9 @@ static void cdc_ncm_status(struct usbnet *dev, struct urb *urb)
 		break;
 
 	default:
-		dev_err(&dev->udev->dev, "NCM: unexpected "
-			"notification 0x%02x!\n", event->bNotificationType);
+		dev_dbg(&dev->udev->dev,
+			"NCM: unexpected notification 0x%02x!\n",
+			event->bNotificationType);
 		break;
 	}
 }
diff --git a/drivers/net/usb/dm9601.c b/drivers/net/usb/dm9601.c
index 174e5ecea4c..2dbb9460349 100644
--- a/drivers/net/usb/dm9601.c
+++ b/drivers/net/usb/dm9601.c
@@ -524,12 +524,7 @@ static void dm9601_status(struct usbnet *dev, struct urb *urb)
 
 	link = !!(buf[0] & 0x40);
 	if (netif_carrier_ok(dev->net) != link) {
-		if (link) {
-			netif_carrier_on(dev->net);
-			usbnet_defer_kevent (dev, EVENT_LINK_RESET);
-		}
-		else
-			netif_carrier_off(dev->net);
+		usbnet_link_change(dev, link, 1);
 		netdev_dbg(dev->net, "Link Status is: %d\n", link);
 	}
 }
diff --git a/drivers/net/usb/mcs7830.c b/drivers/net/usb/mcs7830.c
index 3f3f566afa0..03832d3780a 100644
--- a/drivers/net/usb/mcs7830.c
+++ b/drivers/net/usb/mcs7830.c
@@ -576,11 +576,7 @@ static void mcs7830_status(struct usbnet *dev, struct urb *urb)
 		 */
 		if (data->link_counter > 20) {
 			data->link_counter = 0;
-			if (link) {
-				netif_carrier_on(dev->net);
-				usbnet_defer_kevent(dev, EVENT_LINK_RESET);
-			} else
-				netif_carrier_off(dev->net);
+			usbnet_link_change(dev, link, 0);
 			netdev_dbg(dev->net, "Link Status is: %d\n", link);
 		}
 	} else
diff --git a/drivers/net/usb/pegasus.c b/drivers/net/usb/pegasus.c
index 73051d10ead..09699054b54 100644
--- a/drivers/net/usb/pegasus.c
+++ b/drivers/net/usb/pegasus.c
@@ -1,5 +1,5 @@
 /*
- *  Copyright (c) 1999-2005 Petko Manolov (petkan@users.sourceforge.net)
+ *  Copyright (c) 1999-2013 Petko Manolov (petkan@nucleusys.com)
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -26,6 +26,9 @@
  *		v0.5.1	ethtool support added
  *		v0.5.5	rx socket buffers are in a pool and the their allocation
  *			is out of the interrupt routine.
+ *		...
+ *		v0.9.3	simplified [get|set]_register(s), async update registers
+ *			logic revisited, receive skb_pool removed.
  */
 
 #include <linux/sched.h>
@@ -45,8 +48,8 @@
 /*
  * Version Information
  */
-#define DRIVER_VERSION "v0.6.14 (2006/09/27)"
-#define DRIVER_AUTHOR "Petko Manolov <petkan@users.sourceforge.net>"
+#define DRIVER_VERSION "v0.9.3 (2013/04/25)"
+#define DRIVER_AUTHOR "Petko Manolov <petkan@nucleusys.com>"
 #define DRIVER_DESC "Pegasus/Pegasus II USB Ethernet driver"
 
 static const char driver_name[] = "pegasus";
@@ -108,251 +111,137 @@ MODULE_PARM_DESC(msg_level, "Override default message level");
 MODULE_DEVICE_TABLE(usb, pegasus_ids);
 static const struct net_device_ops pegasus_netdev_ops;
 
-static int update_eth_regs_async(pegasus_t *);
-/* Aargh!!! I _really_ hate such tweaks */
-static void ctrl_callback(struct urb *urb)
+/*****/
+
+static void async_ctrl_callback(struct urb *urb)
 {
-	pegasus_t *pegasus = urb->context;
+	struct usb_ctrlrequest *req = (struct usb_ctrlrequest *)urb->context;
 	int status = urb->status;
 
-	if (!pegasus)
-		return;
-
-	switch (status) {
-	case 0:
-		if (pegasus->flags & ETH_REGS_CHANGE) {
-			pegasus->flags &= ~ETH_REGS_CHANGE;
-			pegasus->flags |= ETH_REGS_CHANGED;
-			update_eth_regs_async(pegasus);
-			return;
-		}
-		break;
-	case -EINPROGRESS:
-		return;
-	case -ENOENT:
-		break;
-	default:
-		if (net_ratelimit())
-			netif_dbg(pegasus, drv, pegasus->net,
-				  "%s, status %d\n", __func__, status);
-		break;
-	}
-	pegasus->flags &= ~ETH_REGS_CHANGED;
-	wake_up(&pegasus->ctrl_wait);
+	if (status < 0)
+		dev_dbg(&urb->dev->dev, "%s failed with %d", __func__, status);
+	kfree(req);
+	usb_free_urb(urb);
 }
 
-static int get_registers(pegasus_t *pegasus, __u16 indx, __u16 size,
-			 void *data)
+static int get_registers(pegasus_t *pegasus, __u16 indx, __u16 size, void *data)
 {
 	int ret;
-	char *buffer;
-	DECLARE_WAITQUEUE(wait, current);
-
-	buffer = kmalloc(size, GFP_KERNEL);
-	if (!buffer)
-		return -ENOMEM;
-
-	add_wait_queue(&pegasus->ctrl_wait, &wait);
-	set_current_state(TASK_UNINTERRUPTIBLE);
-	while (pegasus->flags & ETH_REGS_CHANGED)
-		schedule();
-	remove_wait_queue(&pegasus->ctrl_wait, &wait);
-	set_current_state(TASK_RUNNING);
-
-	pegasus->dr.bRequestType = PEGASUS_REQT_READ;
-	pegasus->dr.bRequest = PEGASUS_REQ_GET_REGS;
-	pegasus->dr.wValue = cpu_to_le16(0);
-	pegasus->dr.wIndex = cpu_to_le16(indx);
-	pegasus->dr.wLength = cpu_to_le16(size);
-	pegasus->ctrl_urb->transfer_buffer_length = size;
-
-	usb_fill_control_urb(pegasus->ctrl_urb, pegasus->usb,
-			     usb_rcvctrlpipe(pegasus->usb, 0),
-			     (char *) &pegasus->dr,
-			     buffer, size, ctrl_callback, pegasus);
-
-	add_wait_queue(&pegasus->ctrl_wait, &wait);
-	set_current_state(TASK_UNINTERRUPTIBLE);
-
-	/* using ATOMIC, we'd never wake up if we slept */
-	if ((ret = usb_submit_urb(pegasus->ctrl_urb, GFP_ATOMIC))) {
-		set_current_state(TASK_RUNNING);
-		if (ret == -ENODEV)
-			netif_device_detach(pegasus->net);
-		if (net_ratelimit())
-			netif_err(pegasus, drv, pegasus->net,
-				  "%s, status %d\n", __func__, ret);
-		goto out;
-	}
-
-	schedule();
-out:
-	remove_wait_queue(&pegasus->ctrl_wait, &wait);
-	memcpy(data, buffer, size);
-	kfree(buffer);
 
+	ret = usb_control_msg(pegasus->usb, usb_rcvctrlpipe(pegasus->usb, 0),
+			      PEGASUS_REQ_GET_REGS, PEGASUS_REQT_READ, 0,
+			      indx, data, size, 1000);
+	if (ret < 0)
+		netif_dbg(pegasus, drv, pegasus->net,
+			  "%s returned %d\n", __func__, ret);
 	return ret;
 }
 
-static int set_registers(pegasus_t *pegasus, __u16 indx, __u16 size,
-			 void *data)
+static int set_registers(pegasus_t *pegasus, __u16 indx, __u16 size, void *data)
 {
 	int ret;
-	char *buffer;
-	DECLARE_WAITQUEUE(wait, current);
-
-	buffer = kmemdup(data, size, GFP_KERNEL);
-	if (!buffer) {
-		netif_warn(pegasus, drv, pegasus->net,
-			   "out of memory in %s\n", __func__);
-		return -ENOMEM;
-	}
-
-	add_wait_queue(&pegasus->ctrl_wait, &wait);
-	set_current_state(TASK_UNINTERRUPTIBLE);
-	while (pegasus->flags & ETH_REGS_CHANGED)
-		schedule();
-	remove_wait_queue(&pegasus->ctrl_wait, &wait);
-	set_current_state(TASK_RUNNING);
-
-	pegasus->dr.bRequestType = PEGASUS_REQT_WRITE;
-	pegasus->dr.bRequest = PEGASUS_REQ_SET_REGS;
-	pegasus->dr.wValue = cpu_to_le16(0);
-	pegasus->dr.wIndex = cpu_to_le16(indx);
-	pegasus->dr.wLength = cpu_to_le16(size);
-	pegasus->ctrl_urb->transfer_buffer_length = size;
-
-	usb_fill_control_urb(pegasus->ctrl_urb, pegasus->usb,
-			     usb_sndctrlpipe(pegasus->usb, 0),
-			     (char *) &pegasus->dr,
-			     buffer, size, ctrl_callback, pegasus);
-
-	add_wait_queue(&pegasus->ctrl_wait, &wait);
-	set_current_state(TASK_UNINTERRUPTIBLE);
-
-	if ((ret = usb_submit_urb(pegasus->ctrl_urb, GFP_ATOMIC))) {
-		if (ret == -ENODEV)
-			netif_device_detach(pegasus->net);
-		netif_err(pegasus, drv, pegasus->net,
-			  "%s, status %d\n", __func__, ret);
-		goto out;
-	}
-
-	schedule();
-out:
-	remove_wait_queue(&pegasus->ctrl_wait, &wait);
-	kfree(buffer);
 
+	ret = usb_control_msg(pegasus->usb, usb_sndctrlpipe(pegasus->usb, 0),
+			      PEGASUS_REQ_SET_REGS, PEGASUS_REQT_WRITE, 0,
+			      indx, data, size, 100);
+	if (ret < 0)
+		netif_dbg(pegasus, drv, pegasus->net,
+			  "%s returned %d\n", __func__, ret);
 	return ret;
 }
 
 static int set_register(pegasus_t *pegasus, __u16 indx, __u8 data)
 {
 	int ret;
-	char *tmp;
-	DECLARE_WAITQUEUE(wait, current);
-
-	tmp = kmemdup(&data, 1, GFP_KERNEL);
-	if (!tmp) {
-		netif_warn(pegasus, drv, pegasus->net,
-			   "out of memory in %s\n", __func__);
-		return -ENOMEM;
-	}
-	add_wait_queue(&pegasus->ctrl_wait, &wait);
-	set_current_state(TASK_UNINTERRUPTIBLE);
-	while (pegasus->flags & ETH_REGS_CHANGED)
-		schedule();
-	remove_wait_queue(&pegasus->ctrl_wait, &wait);
-	set_current_state(TASK_RUNNING);
-
-	pegasus->dr.bRequestType = PEGASUS_REQT_WRITE;
-	pegasus->dr.bRequest = PEGASUS_REQ_SET_REG;
-	pegasus->dr.wValue = cpu_to_le16(data);
-	pegasus->dr.wIndex = cpu_to_le16(indx);
-	pegasus->dr.wLength = cpu_to_le16(1);
-	pegasus->ctrl_urb->transfer_buffer_length = 1;
-
-	usb_fill_control_urb(pegasus->ctrl_urb, pegasus->usb,
-			     usb_sndctrlpipe(pegasus->usb, 0),
-			     (char *) &pegasus->dr,
-			     tmp, 1, ctrl_callback, pegasus);
-
-	add_wait_queue(&pegasus->ctrl_wait, &wait);
-	set_current_state(TASK_UNINTERRUPTIBLE);
-
-	if ((ret = usb_submit_urb(pegasus->ctrl_urb, GFP_ATOMIC))) {
-		if (ret == -ENODEV)
-			netif_device_detach(pegasus->net);
-		if (net_ratelimit())
-			netif_err(pegasus, drv, pegasus->net,
-				  "%s, status %d\n", __func__, ret);
-		goto out;
-	}
-
-	schedule();
-out:
-	remove_wait_queue(&pegasus->ctrl_wait, &wait);
-	kfree(tmp);
 
+	ret = usb_control_msg(pegasus->usb, usb_sndctrlpipe(pegasus->usb, 0),
+			      PEGASUS_REQ_SET_REG, PEGASUS_REQT_WRITE, data,
+			      indx, &data, 1, 1000);
+	if (ret < 0)
+		netif_dbg(pegasus, drv, pegasus->net,
+			  "%s returned %d\n", __func__, ret);
 	return ret;
 }
 
 static int update_eth_regs_async(pegasus_t *pegasus)
 {
-	int ret;
-
-	pegasus->dr.bRequestType = PEGASUS_REQT_WRITE;
-	pegasus->dr.bRequest = PEGASUS_REQ_SET_REGS;
-	pegasus->dr.wValue = cpu_to_le16(0);
-	pegasus->dr.wIndex = cpu_to_le16(EthCtrl0);
-	pegasus->dr.wLength = cpu_to_le16(3);
-	pegasus->ctrl_urb->transfer_buffer_length = 3;
-
-	usb_fill_control_urb(pegasus->ctrl_urb, pegasus->usb,
-			     usb_sndctrlpipe(pegasus->usb, 0),
-			     (char *) &pegasus->dr,
-			     pegasus->eth_regs, 3, ctrl_callback, pegasus);
-
-	if ((ret = usb_submit_urb(pegasus->ctrl_urb, GFP_ATOMIC))) {
+	int ret = -ENOMEM;
+	struct urb *async_urb;
+	struct usb_ctrlrequest *req;
+
+	req = kmalloc(sizeof(struct usb_ctrlrequest), GFP_ATOMIC);
+	if (req == NULL)
+		return ret;
+
+	async_urb = usb_alloc_urb(0, GFP_ATOMIC);
+	if (async_urb == NULL) {
+		kfree(req);
+		return ret;
+	}
+	req->bRequestType = PEGASUS_REQT_WRITE;
+	req->bRequest = PEGASUS_REQ_SET_REGS;
+	req->wValue = cpu_to_le16(0);
+	req->wIndex = cpu_to_le16(EthCtrl0);
+	req->wLength = cpu_to_le16(3);
+
+	usb_fill_control_urb(async_urb, pegasus->usb,
+			     usb_sndctrlpipe(pegasus->usb, 0), (void *)req,
+			     pegasus->eth_regs, 3, async_ctrl_callback, req);
+
+	ret = usb_submit_urb(async_urb, GFP_ATOMIC);
+	if (ret) {
 		if (ret == -ENODEV)
 			netif_device_detach(pegasus->net);
 		netif_err(pegasus, drv, pegasus->net,
-			  "%s, status %d\n", __func__, ret);
+			  "%s returned %d\n", __func__, ret);
 	}
-
 	return ret;
 }
 
-/* Returns 0 on success, error on failure */
-static int read_mii_word(pegasus_t *pegasus, __u8 phy, __u8 indx, __u16 *regd)
+static int __mii_op(pegasus_t *p, __u8 phy, __u8 indx, __u16 *regd, __u8 cmd)
 {
 	int i;
 	__u8 data[4] = { phy, 0, 0, indx };
 	__le16 regdi;
-	int ret;
+	int ret = -ETIMEDOUT;
 
-	set_register(pegasus, PhyCtrl, 0);
-	set_registers(pegasus, PhyAddr, sizeof(data), data);
-	set_register(pegasus, PhyCtrl, (indx | PHY_READ));
+	if (cmd & PHY_WRITE) {
+		__le16 *t = (__le16 *) & data[1];
+		*t = cpu_to_le16(*regd);
+	}
+	set_register(p, PhyCtrl, 0);
+	set_registers(p, PhyAddr, sizeof(data), data);
+	set_register(p, PhyCtrl, (indx | cmd));
 	for (i = 0; i < REG_TIMEOUT; i++) {
-		ret = get_registers(pegasus, PhyCtrl, 1, data);
-		if (ret == -ESHUTDOWN)
+		ret = get_registers(p, PhyCtrl, 1, data);
+		if (ret < 0)
 			goto fail;
 		if (data[0] & PHY_DONE)
 			break;
 	}
-
 	if (i >= REG_TIMEOUT)
 		goto fail;
-
-	ret = get_registers(pegasus, PhyData, 2, &regdi);
-	*regd = le16_to_cpu(regdi);
+	if (cmd & PHY_READ) {
+		ret = get_registers(p, PhyData, 2, &regdi);
+		*regd = le16_to_cpu(regdi);
+		return ret;
+	}
+	return 0;
+fail:
+	netif_dbg(p, drv, p->net, "%s failed\n", __func__);
 	return ret;
+}
 
-fail:
-	netif_warn(pegasus, drv, pegasus->net, "%s failed\n", __func__);
+/* Returns non-negative int on success, error on failure */
+static int read_mii_word(pegasus_t *pegasus, __u8 phy, __u8 indx, __u16 *regd)
+{
+	return __mii_op(pegasus, phy, indx, regd, PHY_READ);
+}
 
-	return ret;
+/* Returns zero on success, error on failure */
+static int write_mii_word(pegasus_t *pegasus, __u8 phy, __u8 indx, __u16 *regd)
+{
+	return __mii_op(pegasus, phy, indx, regd, PHY_WRITE);
 }
 
 static int mdio_read(struct net_device *dev, int phy_id, int loc)
@@ -364,40 +253,11 @@ static int mdio_read(struct net_device *dev, int phy_id, int loc)
 	return (int)res;
 }
 
-static int write_mii_word(pegasus_t *pegasus, __u8 phy, __u8 indx, __u16 regd)
-{
-	int i;
-	__u8 data[4] = { phy, 0, 0, indx };
-	int ret;
-
-	data[1] = (u8) regd;
-	data[2] = (u8) (regd >> 8);
-	set_register(pegasus, PhyCtrl, 0);
-	set_registers(pegasus, PhyAddr, sizeof(data), data);
-	set_register(pegasus, PhyCtrl, (indx | PHY_WRITE));
-	for (i = 0; i < REG_TIMEOUT; i++) {
-		ret = get_registers(pegasus, PhyCtrl, 1, data);
-		if (ret == -ESHUTDOWN)
-			goto fail;
-		if (data[0] & PHY_DONE)
-			break;
-	}
-
-	if (i >= REG_TIMEOUT)
-		goto fail;
-
-	return ret;
-
-fail:
-	netif_warn(pegasus, drv, pegasus->net, "%s failed\n", __func__);
-	return -ETIMEDOUT;
-}
-
 static void mdio_write(struct net_device *dev, int phy_id, int loc, int val)
 {
 	pegasus_t *pegasus = netdev_priv(dev);
 
-	write_mii_word(pegasus, phy_id, loc, val);
+	write_mii_word(pegasus, phy_id, loc, (__u16 *)&val);
 }
 
 static int read_eprom_word(pegasus_t *pegasus, __u8 index, __u16 *retdata)
@@ -434,7 +294,6 @@ fail:
 static inline void enable_eprom_write(pegasus_t *pegasus)
 {
 	__u8 tmp;
-	int ret;
 
 	get_registers(pegasus, EthCtrl2, 1, &tmp);
 	set_register(pegasus, EthCtrl2, tmp | EPROM_WR_ENABLE);
@@ -443,7 +302,6 @@ static inline void enable_eprom_write(pegasus_t *pegasus)
 static inline void disable_eprom_write(pegasus_t *pegasus)
 {
 	__u8 tmp;
-	int ret;
 
 	get_registers(pegasus, EthCtrl2, 1, &tmp);
 	set_register(pegasus, EpromCtrl, 0);
@@ -537,7 +395,8 @@ static inline int reset_mac(pegasus_t *pegasus)
 	if (usb_dev_id[pegasus->dev_index].vendor == VENDOR_ELCON) {
 		__u16 auxmode;
 		read_mii_word(pegasus, 3, 0x1b, &auxmode);
-		write_mii_word(pegasus, 3, 0x1b, auxmode | 4);
+		auxmode |= 4;
+		write_mii_word(pegasus, 3, 0x1b, &auxmode);
 	}
 
 	return 0;
@@ -569,57 +428,13 @@ static int enable_net_traffic(struct net_device *dev, struct usb_device *usb)
 	    usb_dev_id[pegasus->dev_index].vendor == VENDOR_DLINK) {
 		u16 auxmode;
 		read_mii_word(pegasus, 0, 0x1b, &auxmode);
-		write_mii_word(pegasus, 0, 0x1b, auxmode | 4);
+		auxmode |= 4;
+		write_mii_word(pegasus, 0, 0x1b, &auxmode);
 	}
 
 	return ret;
 }
 
-static void fill_skb_pool(pegasus_t *pegasus)
-{
-	int i;
-
-	for (i = 0; i < RX_SKBS; i++) {
-		if (pegasus->rx_pool[i])
-			continue;
-		pegasus->rx_pool[i] = dev_alloc_skb(PEGASUS_MTU + 2);
-		/*
-		 ** we give up if the allocation fail. the tasklet will be
-		 ** rescheduled again anyway...
-		 */
-		if (pegasus->rx_pool[i] == NULL)
-			return;
-		skb_reserve(pegasus->rx_pool[i], 2);
-	}
-}
-
-static void free_skb_pool(pegasus_t *pegasus)
-{
-	int i;
-
-	for (i = 0; i < RX_SKBS; i++) {
-		if (pegasus->rx_pool[i]) {
-			dev_kfree_skb(pegasus->rx_pool[i]);
-			pegasus->rx_pool[i] = NULL;
-		}
-	}
-}
-
-static inline struct sk_buff *pull_skb(pegasus_t * pegasus)
-{
-	int i;
-	struct sk_buff *skb;
-
-	for (i = 0; i < RX_SKBS; i++) {
-		if (likely(pegasus->rx_pool[i] != NULL)) {
-			skb = pegasus->rx_pool[i];
-			pegasus->rx_pool[i] = NULL;
-			return skb;
-		}
-	}
-	return NULL;
-}
-
 static void read_bulk_callback(struct urb *urb)
 {
 	pegasus_t *pegasus = urb->context;
@@ -704,9 +519,8 @@ static void read_bulk_callback(struct urb *urb)
 	if (pegasus->flags & PEGASUS_UNPLUG)
 		return;
 
-	spin_lock(&pegasus->rx_pool_lock);
-	pegasus->rx_skb = pull_skb(pegasus);
-	spin_unlock(&pegasus->rx_pool_lock);
+	pegasus->rx_skb = __netdev_alloc_skb_ip_align(pegasus->net, PEGASUS_MTU,
+						      GFP_ATOMIC);
 
 	if (pegasus->rx_skb == NULL)
 		goto tl_sched;
@@ -734,24 +548,23 @@ tl_sched:
 static void rx_fixup(unsigned long data)
 {
 	pegasus_t *pegasus;
-	unsigned long flags;
 	int status;
 
 	pegasus = (pegasus_t *) data;
 	if (pegasus->flags & PEGASUS_UNPLUG)
 		return;
 
-	spin_lock_irqsave(&pegasus->rx_pool_lock, flags);
-	fill_skb_pool(pegasus);
 	if (pegasus->flags & PEGASUS_RX_URB_FAIL)
 		if (pegasus->rx_skb)
 			goto try_again;
 	if (pegasus->rx_skb == NULL)
-		pegasus->rx_skb = pull_skb(pegasus);
+		pegasus->rx_skb = __netdev_alloc_skb_ip_align(pegasus->net,
+							      PEGASUS_MTU,
+							      GFP_ATOMIC);
 	if (pegasus->rx_skb == NULL) {
 		netif_warn(pegasus, rx_err, pegasus->net, "low on memory\n");
 		tasklet_schedule(&pegasus->rx_tl);
-		goto done;
+		return;
 	}
 	usb_fill_bulk_urb(pegasus->rx_urb, pegasus->usb,
 			  usb_rcvbulkpipe(pegasus->usb, 1),
@@ -767,8 +580,6 @@ try_again:
 	} else {
 		pegasus->flags &= ~PEGASUS_RX_URB_FAIL;
 	}
-done:
-	spin_unlock_irqrestore(&pegasus->rx_pool_lock, flags);
 }
 
 static void write_bulk_callback(struct urb *urb)
@@ -963,7 +774,6 @@ static void free_all_urbs(pegasus_t *pegasus)
 	usb_free_urb(pegasus->intr_urb);
 	usb_free_urb(pegasus->tx_urb);
 	usb_free_urb(pegasus->rx_urb);
-	usb_free_urb(pegasus->ctrl_urb);
 }
 
 static void unlink_all_urbs(pegasus_t *pegasus)
@@ -971,48 +781,42 @@ static void unlink_all_urbs(pegasus_t *pegasus)
 	usb_kill_urb(pegasus->intr_urb);
 	usb_kill_urb(pegasus->tx_urb);
 	usb_kill_urb(pegasus->rx_urb);
-	usb_kill_urb(pegasus->ctrl_urb);
 }
 
 static int alloc_urbs(pegasus_t *pegasus)
 {
-	pegasus->ctrl_urb = usb_alloc_urb(0, GFP_KERNEL);
-	if (!pegasus->ctrl_urb)
-		return 0;
+	int res = -ENOMEM;
+
 	pegasus->rx_urb = usb_alloc_urb(0, GFP_KERNEL);
 	if (!pegasus->rx_urb) {
-		usb_free_urb(pegasus->ctrl_urb);
-		return 0;
+		return res;
 	}
 	pegasus->tx_urb = usb_alloc_urb(0, GFP_KERNEL);
 	if (!pegasus->tx_urb) {
 		usb_free_urb(pegasus->rx_urb);
-		usb_free_urb(pegasus->ctrl_urb);
-		return 0;
+		return res;
 	}
 	pegasus->intr_urb = usb_alloc_urb(0, GFP_KERNEL);
 	if (!pegasus->intr_urb) {
 		usb_free_urb(pegasus->tx_urb);
 		usb_free_urb(pegasus->rx_urb);
-		usb_free_urb(pegasus->ctrl_urb);
-		return 0;
+		return res;
 	}
 
-	return 1;
+	return 0;
 }
 
 static int pegasus_open(struct net_device *net)
 {
 	pegasus_t *pegasus = netdev_priv(net);
-	int res;
+	int res=-ENOMEM;
 
 	if (pegasus->rx_skb == NULL)
-		pegasus->rx_skb = pull_skb(pegasus);
-	/*
-	 ** Note: no point to free the pool.  it is empty :-)
-	 */
+		pegasus->rx_skb = __netdev_alloc_skb_ip_align(pegasus->net,
+							      PEGASUS_MTU,
+							      GFP_KERNEL);
 	if (!pegasus->rx_skb)
-		return -ENOMEM;
+		goto exit;
 
 	res = set_registers(pegasus, EthID, 6, net->dev_addr);
 
@@ -1038,13 +842,13 @@ static int pegasus_open(struct net_device *net)
 		usb_kill_urb(pegasus->rx_urb);
 		goto exit;
 	}
-	if ((res = enable_net_traffic(net, pegasus->usb))) {
+	res = enable_net_traffic(net, pegasus->usb);
+	if (res < 0) {
 		netif_dbg(pegasus, ifup, net,
 			  "can't enable_net_traffic() - %d\n", res);
 		res = -EIO;
 		usb_kill_urb(pegasus->rx_urb);
 		usb_kill_urb(pegasus->intr_urb);
-		free_skb_pool(pegasus);
 		goto exit;
 	}
 	set_carrier(net);
@@ -1195,7 +999,7 @@ static int pegasus_ioctl(struct net_device *net, struct ifreq *rq, int cmd)
 	case SIOCDEVPRIVATE + 2:
 		if (!capable(CAP_NET_ADMIN))
 			return -EPERM;
-		write_mii_word(pegasus, pegasus->phy, data[1] & 0x1f, data[2]);
+		write_mii_word(pegasus, pegasus->phy, data[1] & 0x1f, &data[2]);
 		res = 0;
 		break;
 	default:
@@ -1219,11 +1023,7 @@ static void pegasus_set_multicast(struct net_device *net)
 		pegasus->eth_regs[EthCtrl0] &= ~RX_MULTICAST;
 		pegasus->eth_regs[EthCtrl2] &= ~RX_PROMISCUOUS;
 	}
-
-	pegasus->ctrl_urb->status = 0;
-
-	pegasus->flags |= ETH_REGS_CHANGE;
-	ctrl_callback(pegasus->ctrl_urb);
+	update_eth_regs_async(pegasus);
 }
 
 static __u8 mii_phy_probe(pegasus_t *pegasus)
@@ -1340,9 +1140,9 @@ static int pegasus_probe(struct usb_interface *intf,
 
 	pegasus = netdev_priv(net);
 	pegasus->dev_index = dev_index;
-	init_waitqueue_head(&pegasus->ctrl_wait);
 
-	if (!alloc_urbs(pegasus)) {
+	res = alloc_urbs(pegasus);
+	if (res < 0) {
 		dev_err(&intf->dev, "can't allocate %s\n", "urbs");
 		goto out1;
 	}
@@ -1364,7 +1164,6 @@ static int pegasus_probe(struct usb_interface *intf,
 	pegasus->mii.mdio_write = mdio_write;
 	pegasus->mii.phy_id_mask = 0x1f;
 	pegasus->mii.reg_num_mask = 0x1f;
-	spin_lock_init(&pegasus->rx_pool_lock);
 	pegasus->msg_enable = netif_msg_init(msg_level, NETIF_MSG_DRV
 				| NETIF_MSG_PROBE | NETIF_MSG_LINK);
 
@@ -1376,7 +1175,6 @@ static int pegasus_probe(struct usb_interface *intf,
 		goto out2;
 	}
 	set_ethernet_addr(pegasus);
-	fill_skb_pool(pegasus);
 	if (pegasus->features & PEGASUS_II) {
 		dev_info(&intf->dev, "setup Pegasus II specific registers\n");
 		setup_pegasus_II(pegasus);
@@ -1394,17 +1192,13 @@ static int pegasus_probe(struct usb_interface *intf,
 	if (res)
 		goto out3;
 	queue_delayed_work(pegasus_workqueue, &pegasus->carrier_check,
-				CARRIER_CHECK_DELAY);
-
-	dev_info(&intf->dev, "%s, %s, %pM\n",
-		 net->name,
-		 usb_dev_id[dev_index].name,
-		 net->dev_addr);
+			   CARRIER_CHECK_DELAY);
+	dev_info(&intf->dev, "%s, %s, %pM\n", net->name,
+		 usb_dev_id[dev_index].name, net->dev_addr);
 	return 0;
 
 out3:
 	usb_set_intfdata(intf, NULL);
-	free_skb_pool(pegasus);
 out2:
 	free_all_urbs(pegasus);
 out1:
@@ -1429,7 +1223,6 @@ static void pegasus_disconnect(struct usb_interface *intf)
 	unregister_netdev(pegasus->net);
 	unlink_all_urbs(pegasus);
 	free_all_urbs(pegasus);
-	free_skb_pool(pegasus);
 	if (pegasus->rx_skb != NULL) {
 		dev_kfree_skb(pegasus->rx_skb);
 		pegasus->rx_skb = NULL;
diff --git a/drivers/net/usb/pegasus.h b/drivers/net/usb/pegasus.h
index 65b78b35b73..d15646244fd 100644
--- a/drivers/net/usb/pegasus.h
+++ b/drivers/net/usb/pegasus.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1999-2003 Petko Manolov - Petkan (petkan@users.sourceforge.net)
+ * Copyright (c) 1999-2013 Petko Manolov (petkan@nucleusys.com)
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as published
@@ -13,7 +13,6 @@
 #define	HAS_HOME_PNA		0x40000000
 
 #define	PEGASUS_MTU		1536
-#define	RX_SKBS			4
 
 #define	EPROM_WRITE		0x01
 #define	EPROM_READ		0x02
@@ -34,8 +33,6 @@
 #define	CTRL_URB_SLEEP		0x00000020
 #define	PEGASUS_UNPLUG		0x00000040
 #define	PEGASUS_RX_URB_FAIL	0x00000080
-#define	ETH_REGS_CHANGE		0x40000000
-#define	ETH_REGS_CHANGED	0x80000000
 
 #define	RX_MULTICAST		2
 #define	RX_PROMISCUOUS		4
@@ -96,12 +93,8 @@ typedef struct pegasus {
 	int			intr_interval;
 	struct tasklet_struct	rx_tl;
 	struct delayed_work	carrier_check;
-	struct urb		*ctrl_urb, *rx_urb, *tx_urb, *intr_urb;
-	struct sk_buff		*rx_pool[RX_SKBS];
+	struct urb		*rx_urb, *tx_urb, *intr_urb;
 	struct sk_buff		*rx_skb;
-	struct usb_ctrlrequest	dr;
-	wait_queue_head_t	ctrl_wait;
-	spinlock_t		rx_pool_lock;
 	int			chip;
 	unsigned char		intr_buff[8];
 	__u8			tx_buff[PEGASUS_MTU];
diff --git a/drivers/net/usb/sierra_net.c b/drivers/net/usb/sierra_net.c
index 79ab2435d9d..a923d61c6fc 100644
--- a/drivers/net/usb/sierra_net.c
+++ b/drivers/net/usb/sierra_net.c
@@ -413,11 +413,10 @@ static void sierra_net_handle_lsi(struct usbnet *dev, char *data,
 	if (link_up) {
 		sierra_net_set_ctx_index(priv, hh->msgspecific.byte);
 		priv->link_up = 1;
-		netif_carrier_on(dev->net);
 	} else {
 		priv->link_up = 0;
-		netif_carrier_off(dev->net);
 	}
+	usbnet_link_change(dev, link_up, 0);
 }
 
 static void sierra_net_dosync(struct usbnet *dev)
diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c
index 51f3192f393..1e5a9b72650 100644
--- a/drivers/net/usb/usbnet.c
+++ b/drivers/net/usb/usbnet.c
@@ -938,6 +938,27 @@ static const struct ethtool_ops usbnet_ethtool_ops = {
 
 /*-------------------------------------------------------------------------*/
 
+static void __handle_link_change(struct usbnet *dev)
+{
+	if (!test_bit(EVENT_DEV_OPEN, &dev->flags))
+		return;
+
+	if (!netif_carrier_ok(dev->net)) {
+		/* kill URBs for reading packets to save bus bandwidth */
+		unlink_urbs(dev, &dev->rxq);
+
+		/*
+		 * tx_timeout will unlink URBs for sending packets and
+		 * tx queue is stopped by netcore after link becomes off
+		 */
+	} else {
+		/* submitting URBs for reading packets */
+		tasklet_schedule(&dev->bh);
+	}
+
+	clear_bit(EVENT_LINK_CHANGE, &dev->flags);
+}
+
 /* work that cannot be done in interrupt context uses keventd.
  *
  * NOTE:  with 2.5 we could do more of this using completion callbacks,
@@ -1035,8 +1056,14 @@ skip_reset:
 		} else {
 			usb_autopm_put_interface(dev->intf);
 		}
+
+		/* handle link change from link resetting */
+		__handle_link_change(dev);
 	}
 
+	if (test_bit (EVENT_LINK_CHANGE, &dev->flags))
+		__handle_link_change(dev);
+
 	if (dev->flags)
 		netdev_dbg(dev->net, "kevent done, flags = 0x%lx\n", dev->flags);
 }
@@ -1286,6 +1313,7 @@ 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) &&
+		   netif_carrier_ok(dev->net) &&
 		   !timer_pending (&dev->delay) &&
 		   !test_bit (EVENT_RX_HALT, &dev->flags)) {
 		int	temp = dev->rxq.qlen;
@@ -1521,7 +1549,7 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod)
 	netif_device_attach (net);
 
 	if (dev->driver_info->flags & FLAG_LINK_INTR)
-		netif_carrier_off(net);
+		usbnet_link_change(dev, 0, 0);
 
 	return 0;
 
@@ -1653,6 +1681,21 @@ int usbnet_manage_power(struct usbnet *dev, int on)
 }
 EXPORT_SYMBOL(usbnet_manage_power);
 
+void usbnet_link_change(struct usbnet *dev, bool link, bool need_reset)
+{
+	/* update link after link is reseted */
+	if (link && !need_reset)
+		netif_carrier_on(dev->net);
+	else
+		netif_carrier_off(dev->net);
+
+	if (need_reset && link)
+		usbnet_defer_kevent(dev, EVENT_LINK_RESET);
+	else
+		usbnet_defer_kevent(dev, EVENT_LINK_CHANGE);
+}
+EXPORT_SYMBOL(usbnet_link_change);
+
 /*-------------------------------------------------------------------------*/
 static int __usbnet_read_cmd(struct usbnet *dev, u8 cmd, u8 reqtype,
 			     u16 value, u16 index, void *data, u16 size)