Merge tag 'net-next-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Jakub Kicinski:

 - Add redirect_neigh() BPF packet redirect helper, allowing to limit
   stack traversal in common container configs and improving TCP
   back-pressure.

   Daniel reports ~10Gbps => ~15Gbps single stream TCP performance gain.

 - Expand netlink policy support and improve policy export to user
   space. (Ge)netlink core performs request validation according to
   declared policies. Expand the expressiveness of those policies
   (min/max length and bitmasks). Allow dumping policies for particular
   commands. This is used for feature discovery by user space (instead
   of kernel version parsing or trial and error).

 - Support IGMPv3/MLDv2 multicast listener discovery protocols in
   bridge.

 - Allow more than 255 IPv4 multicast interfaces.

 - Add support for Type of Service (ToS) reflection in SYN/SYN-ACK
   packets of TCPv6.

 - In Multi-patch TCP (MPTCP) support concurrent transmission of data on
   multiple subflows in a load balancing scenario. Enhance advertising
   addresses via the RM_ADDR/ADD_ADDR options.

 - Support SMC-Dv2 version of SMC, which enables multi-subnet
   deployments.

 - Allow more calls to same peer in RxRPC.

 - Support two new Controller Area Network (CAN) protocols - CAN-FD and
   ISO 15765-2:2016.

 - Add xfrm/IPsec compat layer, solving the 32bit user space on 64bit
   kernel problem.

 - Add TC actions for implementing MPLS L2 VPNs.

 - Improve nexthop code - e.g. handle various corner cases when nexthop
   objects are removed from groups better, skip unnecessary
   notifications and make it easier to offload nexthops into HW by
   converting to a blocking notifier.

 - Support adding and consuming TCP header options by BPF programs,
   opening the doors for easy experimental and deployment-specific TCP
   option use.

 - Reorganize TCP congestion control (CC) initialization to simplify
   life of TCP CC implemented in BPF.

 - Add support for shipping BPF programs with the kernel and loading
   them early on boot via the User Mode Driver mechanism, hence reusing
   all the user space infra we have.

 - Support sleepable BPF programs, initially targeting LSM and tracing.

 - Add bpf_d_path() helper for returning full path for given 'struct
   path'.

 - Make bpf_tail_call compatible with bpf-to-bpf calls.

 - Allow BPF programs to call map_update_elem on sockmaps.

 - Add BPF Type Format (BTF) support for type and enum discovery, as
   well as support for using BTF within the kernel itself (current use
   is for pretty printing structures).

 - Support listing and getting information about bpf_links via the bpf
   syscall.

 - Enhance kernel interfaces around NIC firmware update. Allow
   specifying overwrite mask to control if settings etc. are reset
   during update; report expected max time operation may take to users;
   support firmware activation without machine reboot incl. limits of
   how much impact reset may have (e.g. dropping link or not).

 - Extend ethtool configuration interface to report IEEE-standard
   counters, to limit the need for per-vendor logic in user space.

 - Adopt or extend devlink use for debug, monitoring, fw update in many
   drivers (dsa loop, ice, ionic, sja1105, qed, mlxsw, mv88e6xxx,
   dpaa2-eth).

 - In mlxsw expose critical and emergency SFP module temperature alarms.
   Refactor port buffer handling to make the defaults more suitable and
   support setting these values explicitly via the DCBNL interface.

 - Add XDP support for Intel's igb driver.

 - Support offloading TC flower classification and filtering rules to
   mscc_ocelot switches.

 - Add PTP support for Marvell Octeontx2 and PP2.2 hardware, as well as
   fixed interval period pulse generator and one-step timestamping in
   dpaa-eth.

 - Add support for various auth offloads in WiFi APs, e.g. SAE (WPA3)
   offload.

 - Add Lynx PHY/PCS MDIO module, and convert various drivers which have
   this HW to use it. Convert mvpp2 to split PCS.

 - Support Marvell Prestera 98DX3255 24-port switch ASICs, as well as
   7-port Mediatek MT7531 IP.

 - Add initial support for QCA6390 and IPQ6018 in ath11k WiFi driver,
   and wcn3680 support in wcn36xx.

 - Improve performance for packets which don't require much offloads on
   recent Mellanox NICs by 20% by making multiple packets share a
   descriptor entry.

 - Move chelsio inline crypto drivers (for TLS and IPsec) from the
   crypto subtree to drivers/net. Move MDIO drivers out of the phy
   directory.

 - Clean up a lot of W=1 warnings, reportedly the actively developed
   subsections of networking drivers should now build W=1 warning free.

 - Make sure drivers don't use in_interrupt() to dynamically adapt their
   code. Convert tasklets to use new tasklet_setup API (sadly this
   conversion is not yet complete).

* tag 'net-next-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2583 commits)
  Revert "bpfilter: Fix build error with CONFIG_BPFILTER_UMH"
  net, sockmap: Don't call bpf_prog_put() on NULL pointer
  bpf, selftest: Fix flaky tcp_hdr_options test when adding addr to lo
  bpf, sockmap: Add locking annotations to iterator
  netfilter: nftables: allow re-computing sctp CRC-32C in 'payload' statements
  net: fix pos incrementment in ipv6_route_seq_next
  net/smc: fix invalid return code in smcd_new_buf_create()
  net/smc: fix valid DMBE buffer sizes
  net/smc: fix use-after-free of delayed events
  bpfilter: Fix build error with CONFIG_BPFILTER_UMH
  cxgb4/ch_ipsec: Replace the module name to ch_ipsec from chcr
  net: sched: Fix suspicious RCU usage while accessing tcf_tunnel_info
  bpf: Fix register equivalence tracking.
  rxrpc: Fix loss of final ack on shutdown
  rxrpc: Fix bundle counting for exclusive connections
  netfilter: restore NF_INET_NUMHOOKS
  ibmveth: Identify ingress large send packets.
  ibmveth: Switch order of ibmveth_helper calls.
  cxgb4: handle 4-tuple PEDIT to NAT mode translation
  selftests: Add VRF route leaking tests
  ...

8 files changed, 291 insertions, 606 deletions

diff --git a/drivers/net/usb/Kconfig b/drivers/net/usb/Kconfig
index c7bcfca7d70b..b46993d5f997 100644
--- a/drivers/net/usb/Kconfig
+++ b/drivers/net/usb/Kconfig
@@ -346,6 +346,8 @@ config USB_NET_SMSC75XX
 config USB_NET_SMSC95XX
 	tristate "SMSC LAN95XX based USB 2.0 10/100 ethernet devices"
 	depends on USB_USBNET
+	select PHYLIB
+	select SMSC_PHY
 	select BITREVERSE
 	select CRC16
 	select CRC32
diff --git a/drivers/net/usb/cx82310_eth.c b/drivers/net/usb/cx82310_eth.c
index 32b08b18e120..ca89d8258dd3 100644
--- a/drivers/net/usb/cx82310_eth.c
+++ b/drivers/net/usb/cx82310_eth.c
@@ -40,6 +40,11 @@ enum cx82310_status {
 #define CX82310_MTU	1514
 #define CMD_EP		0x01
 
+struct cx82310_priv {
+	struct work_struct reenable_work;
+	struct usbnet *dev;
+};
+
 /*
  * execute control command
  *  - optionally send some data (command parameters)
@@ -66,8 +71,8 @@ static int cx82310_cmd(struct usbnet *dev, enum cx82310_cmd cmd, bool reply,
 			   CMD_PACKET_SIZE, &actual_len, CMD_TIMEOUT);
 	if (ret < 0) {
 		if (cmd != CMD_GET_LINK_STATUS)
-			dev_err(&dev->udev->dev, "send command %#x: error %d\n",
-				cmd, ret);
+			netdev_err(dev->net, "send command %#x: error %d\n",
+				   cmd, ret);
 		goto end;
 	}
 
@@ -79,30 +84,27 @@ static int cx82310_cmd(struct usbnet *dev, enum cx82310_cmd cmd, bool reply,
 					   CMD_TIMEOUT);
 			if (ret < 0) {
 				if (cmd != CMD_GET_LINK_STATUS)
-					dev_err(&dev->udev->dev,
-						"reply receive error %d\n",
-						ret);
+					netdev_err(dev->net, "reply receive error %d\n",
+						   ret);
 				goto end;
 			}
 			if (actual_len > 0)
 				break;
 		}
 		if (actual_len == 0) {
-			dev_err(&dev->udev->dev, "no reply to command %#x\n",
-				cmd);
+			netdev_err(dev->net, "no reply to command %#x\n", cmd);
 			ret = -EIO;
 			goto end;
 		}
 		if (buf[0] != cmd) {
-			dev_err(&dev->udev->dev,
-				"got reply to command %#x, expected: %#x\n",
-				buf[0], cmd);
+			netdev_err(dev->net, "got reply to command %#x, expected: %#x\n",
+				   buf[0], cmd);
 			ret = -EIO;
 			goto end;
 		}
 		if (buf[1] != STATUS_SUCCESS) {
-			dev_err(&dev->udev->dev, "command %#x failed: %#x\n",
-				cmd, buf[1]);
+			netdev_err(dev->net, "command %#x failed: %#x\n", cmd,
+				   buf[1]);
 			ret = -EIO;
 			goto end;
 		}
@@ -115,6 +117,23 @@ end:
 	return ret;
 }
 
+static int cx82310_enable_ethernet(struct usbnet *dev)
+{
+	int ret = cx82310_cmd(dev, CMD_ETHERNET_MODE, true, "\x01", 1, NULL, 0);
+
+	if (ret)
+		netdev_err(dev->net, "unable to enable ethernet mode: %d\n",
+			   ret);
+	return ret;
+}
+
+static void cx82310_reenable_work(struct work_struct *work)
+{
+	struct cx82310_priv *priv = container_of(work, struct cx82310_priv,
+						 reenable_work);
+	cx82310_enable_ethernet(priv->dev);
+}
+
 #define partial_len	data[0]		/* length of partial packet data */
 #define partial_rem	data[1]		/* remaining (missing) data length */
 #define partial_data	data[2]		/* partial packet data */
@@ -126,6 +145,7 @@ static int cx82310_bind(struct usbnet *dev, struct usb_interface *intf)
 	struct usb_device *udev = dev->udev;
 	u8 link[3];
 	int timeout = 50;
+	struct cx82310_priv *priv;
 
 	/* avoid ADSL modems - continue only if iProduct is "USB NET CARD" */
 	if (usb_string(udev, udev->descriptor.iProduct, buf, sizeof(buf)) > 0
@@ -152,6 +172,15 @@ static int cx82310_bind(struct usbnet *dev, struct usb_interface *intf)
 	if (!dev->partial_data)
 		return -ENOMEM;
 
+	priv = kzalloc(sizeof(*priv), GFP_KERNEL);
+	if (!priv) {
+		ret = -ENOMEM;
+		goto err_partial;
+	}
+	dev->driver_priv = priv;
+	INIT_WORK(&priv->reenable_work, cx82310_reenable_work);
+	priv->dev = dev;
+
 	/* wait for firmware to become ready (indicated by the link being up) */
 	while (--timeout) {
 		ret = cx82310_cmd(dev, CMD_GET_LINK_STATUS, true, NULL, 0,
@@ -162,24 +191,20 @@ static int cx82310_bind(struct usbnet *dev, struct usb_interface *intf)
 		msleep(500);
 	}
 	if (!timeout) {
-		dev_err(&udev->dev, "firmware not ready in time\n");
+		netdev_err(dev->net, "firmware not ready in time\n");
 		ret = -ETIMEDOUT;
 		goto err;
 	}
 
 	/* enable ethernet mode (?) */
-	ret = cx82310_cmd(dev, CMD_ETHERNET_MODE, true, "\x01", 1, NULL, 0);
-	if (ret) {
-		dev_err(&udev->dev, "unable to enable ethernet mode: %d\n",
-			ret);
+	if (cx82310_enable_ethernet(dev))
 		goto err;
-	}
 
 	/* get the MAC address */
 	ret = cx82310_cmd(dev, CMD_GET_MAC_ADDR, true, NULL, 0,
 			  dev->net->dev_addr, ETH_ALEN);
 	if (ret) {
-		dev_err(&udev->dev, "unable to read MAC address: %d\n", ret);
+		netdev_err(dev->net, "unable to read MAC address: %d\n", ret);
 		goto err;
 	}
 
@@ -190,13 +215,19 @@ static int cx82310_bind(struct usbnet *dev, struct usb_interface *intf)
 
 	return 0;
 err:
+	kfree(dev->driver_priv);
+err_partial:
 	kfree((void *)dev->partial_data);
 	return ret;
 }
 
 static void cx82310_unbind(struct usbnet *dev, struct usb_interface *intf)
 {
+	struct cx82310_priv *priv = dev->driver_priv;
+
 	kfree((void *)dev->partial_data);
+	cancel_work_sync(&priv->reenable_work);
+	kfree(dev->driver_priv);
 }
 
 /*
@@ -211,6 +242,7 @@ static int cx82310_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
 {
 	int len;
 	struct sk_buff *skb2;
+	struct cx82310_priv *priv = dev->driver_priv;
 
 	/*
 	 * If the last skb ended with an incomplete packet, this skb contains
@@ -245,9 +277,11 @@ static int cx82310_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
 			break;
 		}
 
-		if (len > CX82310_MTU) {
-			dev_err(&dev->udev->dev, "RX packet too long: %d B\n",
-				len);
+		if (len == 0xffff) {
+			netdev_info(dev->net, "router was rebooted, re-enabling ethernet mode");
+			schedule_work(&priv->reenable_work);
+		} else if (len > CX82310_MTU) {
+			netdev_err(dev->net, "RX packet too long: %d B\n", len);
 			return 0;
 		}
 
diff --git a/drivers/net/usb/kaweth.c b/drivers/net/usb/kaweth.c
index ed01dc964c99..144c686b4333 100644
--- a/drivers/net/usb/kaweth.c
+++ b/drivers/net/usb/kaweth.c
@@ -103,10 +103,6 @@ static int kaweth_probe(
 		const struct usb_device_id *id	/* from id_table */
 	);
 static void kaweth_disconnect(struct usb_interface *intf);
-static int kaweth_internal_control_msg(struct usb_device *usb_dev,
-				       unsigned int pipe,
-				       struct usb_ctrlrequest *cmd, void *data,
-				       int len, int timeout);
 static int kaweth_suspend(struct usb_interface *intf, pm_message_t message);
 static int kaweth_resume(struct usb_interface *intf);
 
@@ -236,65 +232,17 @@ struct kaweth_device
 };
 
 /****************************************************************
- *     kaweth_control
- ****************************************************************/
-static int kaweth_control(struct kaweth_device *kaweth,
-			  unsigned int pipe,
-			  __u8 request,
-			  __u8 requesttype,
-			  __u16 value,
-			  __u16 index,
-			  void *data,
-			  __u16 size,
-			  int timeout)
-{
-	struct usb_ctrlrequest *dr;
-	int retval;
-
-	if(in_interrupt()) {
-		netdev_dbg(kaweth->net, "in_interrupt()\n");
-		return -EBUSY;
-	}
-
-	dr = kmalloc(sizeof(struct usb_ctrlrequest), GFP_ATOMIC);
-	if (!dr)
-		return -ENOMEM;
-
-	dr->bRequestType = requesttype;
-	dr->bRequest = request;
-	dr->wValue = cpu_to_le16(value);
-	dr->wIndex = cpu_to_le16(index);
-	dr->wLength = cpu_to_le16(size);
-
-	retval = kaweth_internal_control_msg(kaweth->dev,
-					     pipe,
-					     dr,
-					     data,
-					     size,
-					     timeout);
-
-	kfree(dr);
-	return retval;
-}
-
-/****************************************************************
  *     kaweth_read_configuration
  ****************************************************************/
 static int kaweth_read_configuration(struct kaweth_device *kaweth)
 {
-	int retval;
-
-	retval = kaweth_control(kaweth,
-				usb_rcvctrlpipe(kaweth->dev, 0),
+	return usb_control_msg(kaweth->dev, usb_rcvctrlpipe(kaweth->dev, 0),
 				KAWETH_COMMAND_GET_ETHERNET_DESC,
 				USB_TYPE_VENDOR | USB_DIR_IN | USB_RECIP_DEVICE,
-				0,
-				0,
-				(void *)&kaweth->configuration,
+				0, 0,
+				&kaweth->configuration,
 				sizeof(kaweth->configuration),
 				KAWETH_CONTROL_TIMEOUT);
-
-	return retval;
 }
 
 /****************************************************************
@@ -302,21 +250,14 @@ static int kaweth_read_configuration(struct kaweth_device *kaweth)
  ****************************************************************/
 static int kaweth_set_urb_size(struct kaweth_device *kaweth, __u16 urb_size)
 {
-	int retval;
-
 	netdev_dbg(kaweth->net, "Setting URB size to %d\n", (unsigned)urb_size);
 
-	retval = kaweth_control(kaweth,
-				usb_sndctrlpipe(kaweth->dev, 0),
-				KAWETH_COMMAND_SET_URB_SIZE,
-				USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE,
-				urb_size,
-				0,
-				(void *)&kaweth->scratch,
-				0,
-				KAWETH_CONTROL_TIMEOUT);
-
-	return retval;
+	return usb_control_msg(kaweth->dev, usb_sndctrlpipe(kaweth->dev, 0),
+			       KAWETH_COMMAND_SET_URB_SIZE,
+			       USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE,
+			       urb_size, 0,
+			       &kaweth->scratch, 0,
+			       KAWETH_CONTROL_TIMEOUT);
 }
 
 /****************************************************************
@@ -324,21 +265,14 @@ static int kaweth_set_urb_size(struct kaweth_device *kaweth, __u16 urb_size)
  ****************************************************************/
 static int kaweth_set_sofs_wait(struct kaweth_device *kaweth, __u16 sofs_wait)
 {
-	int retval;
-
 	netdev_dbg(kaweth->net, "Set SOFS wait to %d\n", (unsigned)sofs_wait);
 
-	retval = kaweth_control(kaweth,
-				usb_sndctrlpipe(kaweth->dev, 0),
-				KAWETH_COMMAND_SET_SOFS_WAIT,
-				USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE,
-				sofs_wait,
-				0,
-				(void *)&kaweth->scratch,
-				0,
-				KAWETH_CONTROL_TIMEOUT);
-
-	return retval;
+	return usb_control_msg(kaweth->dev, usb_sndctrlpipe(kaweth->dev, 0),
+			       KAWETH_COMMAND_SET_SOFS_WAIT,
+			       USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE,
+			       sofs_wait, 0,
+			       &kaweth->scratch, 0,
+			       KAWETH_CONTROL_TIMEOUT);
 }
 
 /****************************************************************
@@ -347,22 +281,15 @@ static int kaweth_set_sofs_wait(struct kaweth_device *kaweth, __u16 sofs_wait)
 static int kaweth_set_receive_filter(struct kaweth_device *kaweth,
 				     __u16 receive_filter)
 {
-	int retval;
-
 	netdev_dbg(kaweth->net, "Set receive filter to %d\n",
 		   (unsigned)receive_filter);
 
-	retval = kaweth_control(kaweth,
-				usb_sndctrlpipe(kaweth->dev, 0),
-				KAWETH_COMMAND_SET_PACKET_FILTER,
-				USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE,
-				receive_filter,
-				0,
-				(void *)&kaweth->scratch,
-				0,
-				KAWETH_CONTROL_TIMEOUT);
-
-	return retval;
+	return usb_control_msg(kaweth->dev, usb_sndctrlpipe(kaweth->dev, 0),
+			       KAWETH_COMMAND_SET_PACKET_FILTER,
+			       USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE,
+			       receive_filter, 0,
+			       &kaweth->scratch, 0,
+			       KAWETH_CONTROL_TIMEOUT);
 }
 
 /****************************************************************
@@ -407,14 +334,11 @@ static int kaweth_download_firmware(struct kaweth_device *kaweth,
 		   kaweth->firmware_buf, kaweth);
 	netdev_dbg(kaweth->net, "Firmware length: %d\n", data_len);
 
-	return kaweth_control(kaweth,
-		              usb_sndctrlpipe(kaweth->dev, 0),
+	return usb_control_msg(kaweth->dev, usb_sndctrlpipe(kaweth->dev, 0),
 			      KAWETH_COMMAND_SCAN,
 			      USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE,
-			      0,
-			      0,
-			      (void *)kaweth->firmware_buf,
-			      data_len,
+			      0, 0,
+			      kaweth->firmware_buf, data_len,
 			      KAWETH_CONTROL_TIMEOUT);
 }
 
@@ -433,15 +357,12 @@ static int kaweth_trigger_firmware(struct kaweth_device *kaweth,
 	kaweth->firmware_buf[6] = 0x00;
 	kaweth->firmware_buf[7] = 0x00;
 
-	return kaweth_control(kaweth,
-			      usb_sndctrlpipe(kaweth->dev, 0),
-			      KAWETH_COMMAND_SCAN,
-			      USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE,
-			      0,
-			      0,
-			      (void *)kaweth->firmware_buf,
-			      8,
-			      KAWETH_CONTROL_TIMEOUT);
+	return usb_control_msg(kaweth->dev, usb_sndctrlpipe(kaweth->dev, 0),
+			       KAWETH_COMMAND_SCAN,
+			       USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE,
+			       0, 0,
+			       (void *)kaweth->firmware_buf, 8,
+			       KAWETH_CONTROL_TIMEOUT);
 }
 
 /****************************************************************
@@ -564,7 +485,8 @@ static int kaweth_resubmit_rx_urb(struct kaweth_device *kaweth,
 	return result;
 }
 
-static void kaweth_async_set_rx_mode(struct kaweth_device *kaweth);
+static void kaweth_async_set_rx_mode(struct kaweth_device *kaweth,
+				     bool may_sleep);
 
 /****************************************************************
  *     kaweth_usb_receive
@@ -694,7 +616,7 @@ static int kaweth_open(struct net_device *net)
 
 	netif_start_queue(net);
 
-	kaweth_async_set_rx_mode(kaweth);
+	kaweth_async_set_rx_mode(kaweth, true);
 	return 0;
 
 err_out:
@@ -782,7 +704,7 @@ static netdev_tx_t kaweth_start_xmit(struct sk_buff *skb,
 
 	spin_lock_irq(&kaweth->device_lock);
 
-	kaweth_async_set_rx_mode(kaweth);
+	kaweth_async_set_rx_mode(kaweth, false);
 	netif_stop_queue(net);
 	if (IS_BLOCKED(kaweth->status)) {
 		goto skip;
@@ -859,36 +781,31 @@ static void kaweth_set_rx_mode(struct net_device *net)
 /****************************************************************
  *     kaweth_async_set_rx_mode
  ****************************************************************/
-static void kaweth_async_set_rx_mode(struct kaweth_device *kaweth)
+static void kaweth_async_set_rx_mode(struct kaweth_device *kaweth,
+				     bool may_sleep)
 {
-	int result;
+	int ret;
 	__u16 packet_filter_bitmap = kaweth->packet_filter_bitmap;
 
 	kaweth->packet_filter_bitmap = 0;
 	if (packet_filter_bitmap == 0)
 		return;
 
-	if (in_interrupt())
+	if (!may_sleep)
 		return;
 
-	result = kaweth_control(kaweth,
-				usb_sndctrlpipe(kaweth->dev, 0),
-				KAWETH_COMMAND_SET_PACKET_FILTER,
-				USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE,
-				packet_filter_bitmap,
-				0,
-				(void *)&kaweth->scratch,
-				0,
-				KAWETH_CONTROL_TIMEOUT);
-
-	if(result < 0) {
+	ret = usb_control_msg(kaweth->dev, usb_sndctrlpipe(kaweth->dev, 0),
+			      KAWETH_COMMAND_SET_PACKET_FILTER,
+			      USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE,
+			      packet_filter_bitmap, 0,
+			      &kaweth->scratch, 0,
+			      KAWETH_CONTROL_TIMEOUT);
+	if (ret < 0)
 		dev_err(&kaweth->intf->dev, "Failed to set Rx mode: %d\n",
-			result);
-	}
-	else {
+			ret);
+	else
 		netdev_dbg(kaweth->net, "Set Rx mode to %d\n",
 			   packet_filter_bitmap);
-	}
 }
 
 /****************************************************************
@@ -1196,88 +1113,4 @@ static void kaweth_disconnect(struct usb_interface *intf)
 }
 
 
-// FIXME this completion stuff is a modified clone of
-// an OLD version of some stuff in usb.c ...
-struct usb_api_data {
-	wait_queue_head_t wqh;
-	int done;
-};
-
-/*-------------------------------------------------------------------*
- * completion handler for compatibility wrappers (sync control/bulk) *
- *-------------------------------------------------------------------*/
-static void usb_api_blocking_completion(struct urb *urb)
-{
-        struct usb_api_data *awd = (struct usb_api_data *)urb->context;
-
-	awd->done=1;
-	wake_up(&awd->wqh);
-}
-
-/*-------------------------------------------------------------------*
- *                         COMPATIBILITY STUFF                       *
- *-------------------------------------------------------------------*/
-
-// Starts urb and waits for completion or timeout
-static int usb_start_wait_urb(struct urb *urb, int timeout, int* actual_length)
-{
-	struct usb_api_data awd;
-        int status;
-
-        init_waitqueue_head(&awd.wqh);
-        awd.done = 0;
-
-        urb->context = &awd;
-        status = usb_submit_urb(urb, GFP_ATOMIC);
-        if (status) {
-                // something went wrong
-                usb_free_urb(urb);
-                return status;
-        }
-
-	if (!wait_event_timeout(awd.wqh, awd.done, timeout)) {
-                // timeout
-                dev_warn(&urb->dev->dev, "usb_control/bulk_msg: timeout\n");
-                usb_kill_urb(urb);  // remove urb safely
-                status = -ETIMEDOUT;
-        }
-	else {
-                status = urb->status;
-	}
-
-        if (actual_length) {
-                *actual_length = urb->actual_length;
-	}
-
-        usb_free_urb(urb);
-        return status;
-}
-
-/*-------------------------------------------------------------------*/
-// returns status (negative) or length (positive)
-static int kaweth_internal_control_msg(struct usb_device *usb_dev,
-				       unsigned int pipe,
-				       struct usb_ctrlrequest *cmd, void *data,
-				       int len, int timeout)
-{
-        struct urb *urb;
-        int retv;
-        int length = 0; /* shut up GCC */
-
-	urb = usb_alloc_urb(0, GFP_ATOMIC);
-        if (!urb)
-                return -ENOMEM;
-
-        usb_fill_control_urb(urb, usb_dev, pipe, (unsigned char*)cmd, data,
-			 len, usb_api_blocking_completion, NULL);
-
-        retv = usb_start_wait_urb(urb, timeout, &length);
-        if (retv < 0) {
-                return retv;
-	}
-        else {
-                return length;
-	}
-}
-
 module_usb_driver(kaweth_driver);
diff --git a/drivers/net/usb/net1080.c b/drivers/net/usb/net1080.c
index 1f04f1720426..b0c0c9dd6a02 100644
--- a/drivers/net/usb/net1080.c
+++ b/drivers/net/usb/net1080.c
@@ -113,7 +113,6 @@ nc_register_read(struct usbnet *dev, u8 regnum, u16 *retval_ptr)
 	return nc_vendor_read(dev, REQUEST_REGISTER, regnum, retval_ptr);
 }
 
-// no retval ... can become async, usable in_interrupt()
 static void
 nc_vendor_write(struct usbnet *dev, u8 req, u8 regnum, u16 value)
 {
diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c
index 5ca1356b8656..a322f51873d0 100644
--- a/drivers/net/usb/qmi_wwan.c
+++ b/drivers/net/usb/qmi_wwan.c
@@ -126,31 +126,9 @@ static void qmimux_get_stats64(struct net_device *net,
 			       struct rtnl_link_stats64 *stats)
 {
 	struct qmimux_priv *priv = netdev_priv(net);
-	unsigned int start;
-	int cpu;
 
 	netdev_stats_to_stats64(stats, &net->stats);
-
-	for_each_possible_cpu(cpu) {
-		struct pcpu_sw_netstats *stats64;
-		u64 rx_packets, rx_bytes;
-		u64 tx_packets, tx_bytes;
-
-		stats64 = per_cpu_ptr(priv->stats64, cpu);
-
-		do {
-			start = u64_stats_fetch_begin_irq(&stats64->syncp);
-			rx_packets = stats64->rx_packets;
-			rx_bytes = stats64->rx_bytes;
-			tx_packets = stats64->tx_packets;
-			tx_bytes = stats64->tx_bytes;
-		} while (u64_stats_fetch_retry_irq(&stats64->syncp, start));
-
-		stats->rx_packets += rx_packets;
-		stats->rx_bytes += rx_bytes;
-		stats->tx_packets += tx_packets;
-		stats->tx_bytes += tx_bytes;
-	}
+	dev_fetch_sw_netstats(stats, priv->stats64);
 }
 
 static const struct net_device_ops qmimux_netdev_ops = {
diff --git a/drivers/net/usb/smsc75xx.c b/drivers/net/usb/smsc75xx.c
index 9556d431885f..8689835a5214 100644
--- a/drivers/net/usb/smsc75xx.c
+++ b/drivers/net/usb/smsc75xx.c
@@ -757,13 +757,14 @@ static int smsc75xx_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd)
 
 static void smsc75xx_init_mac_address(struct usbnet *dev)
 {
-	const u8 *mac_addr;
-
 	/* maybe the boot loader passed the MAC address in devicetree */
-	mac_addr = of_get_mac_address(dev->udev->dev.of_node);
-	if (!IS_ERR(mac_addr)) {
-		ether_addr_copy(dev->net->dev_addr, mac_addr);
-		return;
+	if (!eth_platform_get_mac_address(&dev->udev->dev,
+			dev->net->dev_addr)) {
+		if (is_valid_ether_addr(dev->net->dev_addr)) {
+			/* device tree values are valid so use them */
+			netif_dbg(dev, ifup, dev->net, "MAC address read from the device tree\n");
+			return;
+		}
 	}
 
 	/* try reading mac address from EEPROM */
diff --git a/drivers/net/usb/smsc95xx.c b/drivers/net/usb/smsc95xx.c
index bb4ccbda031a..ea0d5f04dc3a 100644
--- a/drivers/net/usb/smsc95xx.c
+++ b/drivers/net/usb/smsc95xx.c
@@ -18,10 +18,12 @@
 #include <linux/usb/usbnet.h>
 #include <linux/slab.h>
 #include <linux/of_net.h>
+#include <linux/mdio.h>
+#include <linux/phy.h>
 #include "smsc95xx.h"
 
 #define SMSC_CHIPNAME			"smsc95xx"
-#define SMSC_DRIVER_VERSION		"1.0.6"
+#define SMSC_DRIVER_VERSION		"2.0.0"
 #define HS_USB_PKT_SIZE			(512)
 #define FS_USB_PKT_SIZE			(64)
 #define DEFAULT_HS_BURST_CAP_SIZE	(16 * 1024 + 5 * HS_USB_PKT_SIZE)
@@ -49,10 +51,7 @@
 #define SUSPEND_ALLMODES		(SUSPEND_SUSPEND0 | SUSPEND_SUSPEND1 | \
 					 SUSPEND_SUSPEND2 | SUSPEND_SUSPEND3)
 
-#define CARRIER_CHECK_DELAY (2 * HZ)
-
 struct smsc95xx_priv {
-	u32 chip_id;
 	u32 mac_cr;
 	u32 hash_hi;
 	u32 hash_lo;
@@ -60,10 +59,8 @@ struct smsc95xx_priv {
 	spinlock_t mac_cr_lock;
 	u8 features;
 	u8 suspend_flags;
-	u8 mdix_ctrl;
-	bool link_ok;
-	struct delayed_work carrier_check;
-	struct usbnet *dev;
+	struct mii_bus *mdiobus;
+	struct phy_device *phydev;
 };
 
 static bool turbo_mode = true;
@@ -173,10 +170,14 @@ static int __must_check __smsc95xx_phy_wait_not_busy(struct usbnet *dev,
 	return -EIO;
 }
 
-static int __smsc95xx_mdio_read(struct net_device *netdev, int phy_id, int idx,
+static u32 mii_address_cmd(int phy_id, int idx, u16 op)
+{
+	return (phy_id & 0x1f) << 11 | (idx & 0x1f) << 6 | op;
+}
+
+static int __smsc95xx_mdio_read(struct usbnet *dev, int phy_id, int idx,
 				int in_pm)
 {
-	struct usbnet *dev = netdev_priv(netdev);
 	u32 val, addr;
 	int ret;
 
@@ -185,14 +186,12 @@ static int __smsc95xx_mdio_read(struct net_device *netdev, int phy_id, int idx,
 	/* confirm MII not busy */
 	ret = __smsc95xx_phy_wait_not_busy(dev, in_pm);
 	if (ret < 0) {
-		netdev_warn(dev->net, "MII is busy in smsc95xx_mdio_read\n");
+		netdev_warn(dev->net, "%s: MII is busy\n", __func__);
 		goto done;
 	}
 
 	/* set the address, index & direction (read from PHY) */
-	phy_id &= dev->mii.phy_id_mask;
-	idx &= dev->mii.reg_num_mask;
-	addr = (phy_id << 11) | (idx << 6) | MII_READ_ | MII_BUSY_;
+	addr = mii_address_cmd(phy_id, idx, MII_READ_ | MII_BUSY_);
 	ret = __smsc95xx_write_reg(dev, MII_ADDR, addr, in_pm);
 	if (ret < 0) {
 		netdev_warn(dev->net, "Error writing MII_ADDR\n");
@@ -218,10 +217,9 @@ done:
 	return ret;
 }
 
-static void __smsc95xx_mdio_write(struct net_device *netdev, int phy_id,
+static void __smsc95xx_mdio_write(struct usbnet *dev, int phy_id,
 				  int idx, int regval, int in_pm)
 {
-	struct usbnet *dev = netdev_priv(netdev);
 	u32 val, addr;
 	int ret;
 
@@ -230,7 +228,7 @@ static void __smsc95xx_mdio_write(struct net_device *netdev, int phy_id,
 	/* confirm MII not busy */
 	ret = __smsc95xx_phy_wait_not_busy(dev, in_pm);
 	if (ret < 0) {
-		netdev_warn(dev->net, "MII is busy in smsc95xx_mdio_write\n");
+		netdev_warn(dev->net, "%s: MII is busy\n", __func__);
 		goto done;
 	}
 
@@ -242,9 +240,7 @@ static void __smsc95xx_mdio_write(struct net_device *netdev, int phy_id,
 	}
 
 	/* set the address, index & direction (write to PHY) */
-	phy_id &= dev->mii.phy_id_mask;
-	idx &= dev->mii.reg_num_mask;
-	addr = (phy_id << 11) | (idx << 6) | MII_WRITE_ | MII_BUSY_;
+	addr = mii_address_cmd(phy_id, idx, MII_WRITE_ | MII_BUSY_);
 	ret = __smsc95xx_write_reg(dev, MII_ADDR, addr, in_pm);
 	if (ret < 0) {
 		netdev_warn(dev->net, "Error writing MII_ADDR\n");
@@ -261,27 +257,34 @@ done:
 	mutex_unlock(&dev->phy_mutex);
 }
 
-static int smsc95xx_mdio_read_nopm(struct net_device *netdev, int phy_id,
-				   int idx)
+static int smsc95xx_mdio_read_nopm(struct usbnet *dev, int idx)
 {
-	return __smsc95xx_mdio_read(netdev, phy_id, idx, 1);
+	struct smsc95xx_priv *pdata = dev->driver_priv;
+
+	return __smsc95xx_mdio_read(dev, pdata->phydev->mdio.addr, idx, 1);
 }
 
-static void smsc95xx_mdio_write_nopm(struct net_device *netdev, int phy_id,
-				     int idx, int regval)
+static void smsc95xx_mdio_write_nopm(struct usbnet *dev, int idx, int regval)
 {
-	__smsc95xx_mdio_write(netdev, phy_id, idx, regval, 1);
+	struct smsc95xx_priv *pdata = dev->driver_priv;
+
+	__smsc95xx_mdio_write(dev, pdata->phydev->mdio.addr, idx, regval, 1);
 }
 
-static int smsc95xx_mdio_read(struct net_device *netdev, int phy_id, int idx)
+static int smsc95xx_mdiobus_read(struct mii_bus *bus, int phy_id, int idx)
 {
-	return __smsc95xx_mdio_read(netdev, phy_id, idx, 0);
+	struct usbnet *dev = bus->priv;
+
+	return __smsc95xx_mdio_read(dev, phy_id, idx, 0);
 }
 
-static void smsc95xx_mdio_write(struct net_device *netdev, int phy_id, int idx,
-				int regval)
+static int smsc95xx_mdiobus_write(struct mii_bus *bus, int phy_id, int idx,
+				  u16 regval)
 {
-	__smsc95xx_mdio_write(netdev, phy_id, idx, regval, 0);
+	struct usbnet *dev = bus->priv;
+
+	__smsc95xx_mdio_write(dev, phy_id, idx, regval, 0);
+	return 0;
 }
 
 static int __must_check smsc95xx_wait_eeprom(struct usbnet *dev)
@@ -455,7 +458,7 @@ static unsigned int smsc95xx_hash(char addr[ETH_ALEN])
 static void smsc95xx_set_multicast(struct net_device *netdev)
 {
 	struct usbnet *dev = netdev_priv(netdev);
-	struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
+	struct smsc95xx_priv *pdata = dev->driver_priv;
 	unsigned long flags;
 	int ret;
 
@@ -511,22 +514,23 @@ static void smsc95xx_set_multicast(struct net_device *netdev)
 		netdev_warn(dev->net, "failed to initiate async write to MAC_CR\n");
 }
 
-static int smsc95xx_phy_update_flowcontrol(struct usbnet *dev, u8 duplex,
-					   u16 lcladv, u16 rmtadv)
+static int smsc95xx_phy_update_flowcontrol(struct usbnet *dev)
 {
 	u32 flow = 0, afc_cfg;
+	struct smsc95xx_priv *pdata = dev->driver_priv;
+	bool tx_pause, rx_pause;
 
 	int ret = smsc95xx_read_reg(dev, AFC_CFG, &afc_cfg);
 	if (ret < 0)
 		return ret;
 
-	if (duplex == DUPLEX_FULL) {
-		u8 cap = mii_resolve_flowctrl_fdx(lcladv, rmtadv);
+	if (pdata->phydev->duplex == DUPLEX_FULL) {
+		phy_get_pause(pdata->phydev, &tx_pause, &rx_pause);
 
-		if (cap & FLOW_CTRL_RX)
+		if (rx_pause)
 			flow = 0xFFFF0002;
 
-		if (cap & FLOW_CTRL_TX) {
+		if (tx_pause) {
 			afc_cfg |= 0xF;
 			flow |= 0xFFFF0000;
 		} else {
@@ -534,8 +538,8 @@ static int smsc95xx_phy_update_flowcontrol(struct usbnet *dev, u8 duplex,
 		}
 
 		netif_dbg(dev, link, dev->net, "rx pause %s, tx pause %s\n",
-				   cap & FLOW_CTRL_RX ? "enabled" : "disabled",
-				   cap & FLOW_CTRL_TX ? "enabled" : "disabled");
+			  rx_pause ? "enabled" : "disabled",
+			  tx_pause ? "enabled" : "disabled");
 	} else {
 		netif_dbg(dev, link, dev->net, "half duplex\n");
 		afc_cfg |= 0xF;
@@ -550,33 +554,16 @@ static int smsc95xx_phy_update_flowcontrol(struct usbnet *dev, u8 duplex,
 
 static int smsc95xx_link_reset(struct usbnet *dev)
 {
-	struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
-	struct mii_if_info *mii = &dev->mii;
-	struct ethtool_cmd ecmd = { .cmd = ETHTOOL_GSET };
+	struct smsc95xx_priv *pdata = dev->driver_priv;
 	unsigned long flags;
-	u16 lcladv, rmtadv;
 	int ret;
 
-	/* clear interrupt status */
-	ret = smsc95xx_mdio_read(dev->net, mii->phy_id, PHY_INT_SRC);
-	if (ret < 0)
-		return ret;
-
 	ret = smsc95xx_write_reg(dev, INT_STS, INT_STS_CLEAR_ALL_);
 	if (ret < 0)
 		return ret;
 
-	mii_check_media(mii, 1, 1);
-	mii_ethtool_gset(&dev->mii, &ecmd);
-	lcladv = smsc95xx_mdio_read(dev->net, mii->phy_id, MII_ADVERTISE);
-	rmtadv = smsc95xx_mdio_read(dev->net, mii->phy_id, MII_LPA);
-
-	netif_dbg(dev, link, dev->net,
-		  "speed: %u duplex: %d lcladv: %04x rmtadv: %04x\n",
-		  ethtool_cmd_speed(&ecmd), ecmd.duplex, lcladv, rmtadv);
-
 	spin_lock_irqsave(&pdata->mac_cr_lock, flags);
-	if (ecmd.duplex != DUPLEX_FULL) {
+	if (pdata->phydev->duplex != DUPLEX_FULL) {
 		pdata->mac_cr &= ~MAC_CR_FDPX_;
 		pdata->mac_cr |= MAC_CR_RCVOWN_;
 	} else {
@@ -589,7 +576,7 @@ static int smsc95xx_link_reset(struct usbnet *dev)
 	if (ret < 0)
 		return ret;
 
-	ret = smsc95xx_phy_update_flowcontrol(dev, ecmd.duplex, lcladv, rmtadv);
+	ret = smsc95xx_phy_update_flowcontrol(dev);
 	if (ret < 0)
 		netdev_warn(dev->net, "Error updating PHY flow control\n");
 
@@ -616,44 +603,6 @@ static void smsc95xx_status(struct usbnet *dev, struct urb *urb)
 			    intdata);
 }