Linux-libre 4.4-gnupck-4.4-gnu

18 files changed, 729 insertions, 969 deletions

diff --git a/drivers/net/usb/Kconfig b/drivers/net/usb/Kconfig
index e66805eef..7f83504df 100644
--- a/drivers/net/usb/Kconfig
+++ b/drivers/net/usb/Kconfig
@@ -109,6 +109,8 @@ config USB_RTL8152
 config USB_LAN78XX
 	tristate "Microchip LAN78XX Based USB Ethernet Adapters"
 	select MII
+	select PHYLIB
+	select MICROCHIP_PHY
 	help
 	  This option adds support for Microchip LAN78XX based USB 2
 	  & USB 3 10/100/1000 Ethernet adapters.
@@ -542,7 +544,7 @@ config USB_NET_INT51X1
 
 config USB_CDC_PHONET
 	tristate "CDC Phonet support"
-	depends on PHONET
+	depends on PHONET && USB_USBNET
 	help
 	  Choose this option to support the Phonet interface to a Nokia
 	  cellular modem, as found on most Nokia handsets with the
diff --git a/drivers/net/usb/asix.h b/drivers/net/usb/asix.h
index 5d049d00c..a2d3ea6ef 100644
--- a/drivers/net/usb/asix.h
+++ b/drivers/net/usb/asix.h
@@ -168,7 +168,7 @@ struct asix_data {
 struct asix_rx_fixup_info {
 	struct sk_buff *ax_skb;
 	u32 header;
-	u16 size;
+	u16 remaining;
 	bool split_head;
 };
 
diff --git a/drivers/net/usb/asix_common.c b/drivers/net/usb/asix_common.c
index 079069a06..bd9acff1e 100644
--- a/drivers/net/usb/asix_common.c
+++ b/drivers/net/usb/asix_common.c
@@ -54,71 +54,101 @@ int asix_rx_fixup_internal(struct usbnet *dev, struct sk_buff *skb,
 			   struct asix_rx_fixup_info *rx)
 {
 	int offset = 0;
+	u16 size;
+
+	/* When an Ethernet frame spans multiple URB socket buffers,
+	 * do a sanity test for the Data header synchronisation.
+	 * Attempt to detect the situation of the previous socket buffer having
+	 * been truncated or a socket buffer was missing. These situations
+	 * cause a discontinuity in the data stream and therefore need to avoid
+	 * appending bad data to the end of the current netdev socket buffer.
+	 * Also avoid unnecessarily discarding a good current netdev socket
+	 * buffer.
+	 */
+	if (rx->remaining && (rx->remaining + sizeof(u32) <= skb->len)) {
+		offset = ((rx->remaining + 1) & 0xfffe) + sizeof(u32);
+		rx->header = get_unaligned_le32(skb->data + offset);
+		offset = 0;
+
+		size = (u16)(rx->header & 0x7ff);
+		if (size != ((~rx->header >> 16) & 0x7ff)) {
+			netdev_err(dev->net, "asix_rx_fixup() Data Header synchronisation was lost, remaining %d\n",
+				   rx->remaining);
+			if (rx->ax_skb) {
+				kfree_skb(rx->ax_skb);
+				rx->ax_skb = NULL;
+				/* Discard the incomplete netdev Ethernet frame
+				 * and assume the Data header is at the start of
+				 * the current URB socket buffer.
+				 */
+			}
+			rx->remaining = 0;
+		}
+	}
 
 	while (offset + sizeof(u16) <= skb->len) {
-		u16 remaining = 0;
+		u16 copy_length;
 		unsigned char *data;
 
-		if (!rx->size) {
-			if ((skb->len - offset == sizeof(u16)) ||
-			    rx->split_head) {
-				if(!rx->split_head) {
-					rx->header = get_unaligned_le16(
-							skb->data + offset);
-					rx->split_head = true;
-					offset += sizeof(u16);
-					break;
-				} else {
-					rx->header |= (get_unaligned_le16(
-							skb->data + offset)
-							<< 16);
-					rx->split_head = false;
-					offset += sizeof(u16);
-				}
+		if (!rx->remaining) {
+			if (skb->len - offset == sizeof(u16)) {
+				rx->header = get_unaligned_le16(
+						skb->data + offset);
+				rx->split_head = true;
+				offset += sizeof(u16);
+				break;
+			}
+
+			if (rx->split_head == true) {
+				rx->header |= (get_unaligned_le16(
+						skb->data + offset) << 16);
+				rx->split_head = false;
+				offset += sizeof(u16);
 			} else {
 				rx->header = get_unaligned_le32(skb->data +
 								offset);
 				offset += sizeof(u32);
 			}
 
-			/* get the packet length */
-			rx->size = (u16) (rx->header & 0x7ff);
-			if (rx->size != ((~rx->header >> 16) & 0x7ff)) {
+			/* take frame length from Data header 32-bit word */
+			size = (u16)(rx->header & 0x7ff);
+			if (size != ((~rx->header >> 16) & 0x7ff)) {
 				netdev_err(dev->net, "asix_rx_fixup() Bad Header Length 0x%x, offset %d\n",
 					   rx->header, offset);
-				rx->size = 0;
 				return 0;
 			}
-			rx->ax_skb = netdev_alloc_skb_ip_align(dev->net,
-							       rx->size);
-			if (!rx->ax_skb) {
-				rx->size = 0;
+			if (size > dev->net->mtu + ETH_HLEN + VLAN_HLEN) {
+				netdev_err(dev->net, "asix_rx_fixup() Bad RX Length %d\n",
+					   size);
 				return 0;
 			}
-		}
 
-		if (rx->size > dev->net->mtu + ETH_HLEN + VLAN_HLEN) {
-			netdev_err(dev->net, "asix_rx_fixup() Bad RX Length %d\n",
-				   rx->size);
-			kfree_skb(rx->ax_skb);
-			rx->ax_skb = NULL;
-			rx->size = 0U;
+			/* Sometimes may fail to get a netdev socket buffer but
+			 * continue to process the URB socket buffer so that
+			 * synchronisation of the Ethernet frame Data header
+			 * word is maintained.
+			 */
+			rx->ax_skb = netdev_alloc_skb_ip_align(dev->net, size);
 
-			return 0;
+			rx->remaining = size;
 		}
 
-		if (rx->size > skb->len - offset) {
-			remaining = rx->size - (skb->len - offset);
-			rx->size = skb->len - offset;
+		if (rx->remaining > skb->len - offset) {
+			copy_length = skb->len - offset;
+			rx->remaining -= copy_length;
+		} else {
+			copy_length = rx->remaining;
+			rx->remaining = 0;
 		}
 
-		data = skb_put(rx->ax_skb, rx->size);
-		memcpy(data, skb->data + offset, rx->size);
-		if (!remaining)
-			usbnet_skb_return(dev, rx->ax_skb);
+		if (rx->ax_skb) {
+			data = skb_put(rx->ax_skb, copy_length);
+			memcpy(data, skb->data + offset, copy_length);
+			if (!rx->remaining)
+				usbnet_skb_return(dev, rx->ax_skb);
+		}
 
-		offset += (rx->size + 1) & 0xfffe;
-		rx->size = remaining;
+		offset += (copy_length + 1) & 0xfffe;
 	}
 
 	if (skb->len != offset) {
@@ -558,7 +588,6 @@ void asix_get_drvinfo(struct net_device *net, struct ethtool_drvinfo *info)
 	usbnet_get_drvinfo(net, info);
 	strlcpy(info->driver, DRIVER_NAME, sizeof(info->driver));
 	strlcpy(info->version, DRIVER_VERSION, sizeof(info->version));
-	info->eedump_len = AX_EEPROM_LEN;
 }
 
 int asix_set_mac_address(struct net_device *net, void *p)
diff --git a/drivers/net/usb/cdc-phonet.c b/drivers/net/usb/cdc-phonet.c
index 415ce8b88..ff2270ead 100644
--- a/drivers/net/usb/cdc-phonet.c
+++ b/drivers/net/usb/cdc-phonet.c
@@ -340,32 +340,13 @@ static int usbpn_probe(struct usb_interface *intf, const struct usb_device_id *i
 	u8 *data;
 	int phonet = 0;
 	int len, err;
+	struct usb_cdc_parsed_header hdr;
 
 	data = intf->altsetting->extra;
 	len = intf->altsetting->extralen;
-	while (len >= 3) {
-		u8 dlen = data[0];
-		if (dlen < 3)
-			return -EINVAL;
-
-		/* bDescriptorType */
-		if (data[1] == USB_DT_CS_INTERFACE) {
-			/* bDescriptorSubType */
-			switch (data[2]) {
-			case USB_CDC_UNION_TYPE:
-				if (union_header || dlen < 5)
-					break;
-				union_header =
-					(struct usb_cdc_union_desc *)data;
-				break;
-			case 0xAB:
-				phonet = 1;
-				break;
-			}
-		}
-		data += dlen;
-		len -= dlen;
-	}
+	cdc_parse_cdc_header(&hdr, intf, data, len);
+	union_header = hdr.usb_cdc_union_desc;
+	phonet = hdr.phonet_magic_present;
 
 	if (!union_header || !phonet)
 		return -EINVAL;
diff --git a/drivers/net/usb/cdc_ether.c b/drivers/net/usb/cdc_ether.c
index 35a2bffe8..3da70bf99 100644
--- a/drivers/net/usb/cdc_ether.c
+++ b/drivers/net/usb/cdc_ether.c
@@ -112,8 +112,7 @@ int usbnet_generic_cdc_bind(struct usbnet *dev, struct usb_interface *intf)
 	int				rndis;
 	bool				android_rndis_quirk = false;
 	struct usb_driver		*driver = driver_of(intf);
-	struct usb_cdc_mdlm_desc	*desc = NULL;
-	struct usb_cdc_mdlm_detail_desc *detail = NULL;
+	struct usb_cdc_parsed_header header;
 
 	if (sizeof(dev->data) < sizeof(*info))
 		return -EDOM;
@@ -155,156 +154,89 @@ int usbnet_generic_cdc_bind(struct usbnet *dev, struct usb_interface *intf)
 
 	memset(info, 0, sizeof(*info));
 	info->control = intf;
-	while (len > 3) {
-		if (buf[1] != USB_DT_CS_INTERFACE)
-			goto next_desc;
-
-		/* use bDescriptorSubType to identify the CDC descriptors.
-		 * We expect devices with CDC header and union descriptors.
-		 * For CDC Ethernet we need the ethernet descriptor.
-		 * For RNDIS, ignore two (pointless) CDC modem descriptors
-		 * in favor of a complicated OID-based RPC scheme doing what
-		 * CDC Ethernet achieves with a simple descriptor.
-		 */
-		switch (buf[2]) {
-		case USB_CDC_HEADER_TYPE:
-			if (info->header) {
-				dev_dbg(&intf->dev, "extra CDC header\n");
-				goto bad_desc;
-			}
-			info->header = (void *) buf;
-			if (info->header->bLength != sizeof(*info->header)) {
-				dev_dbg(&intf->dev, "CDC header len %u\n",
-					info->header->bLength);
-				goto bad_desc;
-			}
-			break;
-		case USB_CDC_ACM_TYPE:
-			/* paranoia:  disambiguate a "real" vendor-specific
-			 * modem interface from an RNDIS non-modem.
-			 */
-			if (rndis) {
-				struct usb_cdc_acm_descriptor *acm;
-
-				acm = (void *) buf;
-				if (acm->bmCapabilities) {
-					dev_dbg(&intf->dev,
-						"ACM capabilities %02x, "
-						"not really RNDIS?\n",
-						acm->bmCapabilities);
-					goto bad_desc;
-				}
-			}
-			break;
-		case USB_CDC_UNION_TYPE:
-			if (info->u) {
-				dev_dbg(&intf->dev, "extra CDC union\n");
-				goto bad_desc;
-			}
-			info->u = (void *) buf;
-			if (info->u->bLength != sizeof(*info->u)) {
-				dev_dbg(&intf->dev, "CDC union len %u\n",
-					info->u->bLength);
-				goto bad_desc;
-			}
-
-			/* we need a master/control interface (what we're
-			 * probed with) and a slave/data interface; union
-			 * descriptors sort this all out.
-			 */
-			info->control = usb_ifnum_to_if(dev->udev,
-						info->u->bMasterInterface0);
-			info->data = usb_ifnum_to_if(dev->udev,
-						info->u->bSlaveInterface0);
-			if (!info->control || !info->data) {
-				dev_dbg(&intf->dev,
-					"master #%u/%p slave #%u/%p\n",
-					info->u->bMasterInterface0,
-					info->control,
-					info->u->bSlaveInterface0,
-					info->data);
-				/* fall back to hard-wiring for RNDIS */
-				if (rndis) {
-					android_rndis_quirk = true;
-					goto next_desc;
-				}
-				goto bad_desc;
-			}
-			if (info->control != intf) {
-				dev_dbg(&intf->dev, "bogus CDC Union\n");
-				/* Ambit USB Cable Modem (and maybe others)
-				 * interchanges master and slave interface.
-				 */
-				if (info->data == intf) {
-					info->data = info->control;
-					info->control = intf;
-				} else
-					goto bad_desc;
-			}
-
-			/* some devices merge these - skip class check */
-			if (info->control == info->data)
-				goto next_desc;
-
-			/* a data interface altsetting does the real i/o */
-			d = &info->data->cur_altsetting->desc;
-			if (d->bInterfaceClass != USB_CLASS_CDC_DATA) {
-				dev_dbg(&intf->dev, "slave class %u\n",
-					d->bInterfaceClass);
-				goto bad_desc;
-			}
-			break;
-		case USB_CDC_ETHERNET_TYPE:
-			if (info->ether) {
-				dev_dbg(&intf->dev, "extra CDC ether\n");
-				goto bad_desc;
-			}
-			info->ether = (void *) buf;
-			if (info->ether->bLength != sizeof(*info->ether)) {
-				dev_dbg(&intf->dev, "CDC ether len %u\n",
-					info->ether->bLength);
-				goto bad_desc;
-			}
-			dev->hard_mtu = le16_to_cpu(
-						info->ether->wMaxSegmentSize);
-			/* because of Zaurus, we may be ignoring the host
-			 * side link address we were given.
-			 */
-			break;
-		case USB_CDC_MDLM_TYPE:
-			if (desc) {
-				dev_dbg(&intf->dev, "extra MDLM descriptor\n");
-				goto bad_desc;
-			}
-
-			desc = (void *)buf;
-
-			if (desc->bLength != sizeof(*desc))
-				goto bad_desc;
-
-			if (memcmp(&desc->bGUID, mbm_guid, 16))
-				goto bad_desc;
-			break;
-		case USB_CDC_MDLM_DETAIL_TYPE:
-			if (detail) {
-				dev_dbg(&intf->dev, "extra MDLM detail descriptor\n");
-				goto bad_desc;
-			}
-
-			detail = (void *)buf;
-
-			if (detail->bGuidDescriptorType == 0) {
-				if (detail->bLength < (sizeof(*detail) + 1))
-					goto bad_desc;
-			} else
-				goto bad_desc;
-			break;
+
+	cdc_parse_cdc_header(&header, intf, buf, len);
+
+	info->u = header.usb_cdc_union_desc;
+	info->header = header.usb_cdc_header_desc;
+	info->ether = header.usb_cdc_ether_desc;
+	/* we need a master/control interface (what we're
+	 * probed with) and a slave/data interface; union
+	 * descriptors sort this all out.
+	 */
+	info->control = usb_ifnum_to_if(dev->udev,
+	info->u->bMasterInterface0);
+	info->data = usb_ifnum_to_if(dev->udev,
+		info->u->bSlaveInterface0);
+	if (!info->control || !info->data) {
+		dev_dbg(&intf->dev,
+			"master #%u/%p slave #%u/%p\n",
+			info->u->bMasterInterface0,
+			info->control,
+			info->u->bSlaveInterface0,
+			info->data);
+		/* fall back to hard-wiring for RNDIS */
+		if (rndis) {
+			android_rndis_quirk = true;
+			goto skip;
 		}
-next_desc:
-		len -= buf[0];	/* bLength */
-		buf += buf[0];
+		goto bad_desc;
+	}
+	if (info->control != intf) {
+		dev_dbg(&intf->dev, "bogus CDC Union\n");
+		/* Ambit USB Cable Modem (and maybe others)
+		 * interchanges master and slave interface.
+		 */
+		if (info->data == intf) {
+			info->data = info->control;
+			info->control = intf;
+		} else
+			goto bad_desc;
+	}
+
+	/* some devices merge these - skip class check */
+	if (info->control == info->data)
+		goto skip;
+
+	/* a data interface altsetting does the real i/o */
+	d = &info->data->cur_altsetting->desc;
+	if (d->bInterfaceClass != USB_CLASS_CDC_DATA) {
+		dev_dbg(&intf->dev, "slave class %u\n",
+			d->bInterfaceClass);
+		goto bad_desc;
+	}
+skip:
+	if (	rndis &&
+		header.usb_cdc_acm_descriptor &&
+		header.usb_cdc_acm_descriptor->bmCapabilities) {
+			dev_dbg(&intf->dev,
+				"ACM capabilities %02x, not really RNDIS?\n",
+				header.usb_cdc_acm_descriptor->bmCapabilities);
+			goto bad_desc;
+	}
+
+	if (header.usb_cdc_ether_desc) {
+		dev->hard_mtu = le16_to_cpu(info->ether->wMaxSegmentSize);
+		/* because of Zaurus, we may be ignoring the host
+		 * side link address we were given.
+		 */
+	}
+
+	if (header.usb_cdc_mdlm_desc &&
+		memcmp(header.usb_cdc_mdlm_desc->bGUID, mbm_guid, 16)) {
+		dev_dbg(&intf->dev, "GUID doesn't match\n");
+		goto bad_desc;
 	}
 
+	if (header.usb_cdc_mdlm_detail_desc &&
+		header.usb_cdc_mdlm_detail_desc->bLength <
+			(sizeof(struct usb_cdc_mdlm_detail_desc) + 1)) {
+		dev_dbg(&intf->dev, "Descriptor too short\n");
+		goto bad_desc;
+	}
+
+
+
 	/* Microsoft ActiveSync based and some regular RNDIS devices lack the
 	 * CDC descriptors, so we'll hard-wire the interfaces and not check
 	 * for descriptors.
@@ -764,6 +696,11 @@ static const struct usb_device_id	products[] = {
 			USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
 	.driver_info = (kernel_ulong_t) &wwan_info,
 }, {
+	/* Dell DW5580 modules */
+	USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x81ba, USB_CLASS_COMM,
+			USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
+	.driver_info = (kernel_ulong_t)&wwan_info,
+}, {
 	USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ETHERNET,
 			USB_CDC_PROTO_NONE),
 	.driver_info = (unsigned long) &cdc_info,
diff --git a/drivers/net/usb/cdc_mbim.c b/drivers/net/usb/cdc_mbim.c
index efc18e05a..bdd83d95e 100644
--- a/drivers/net/usb/cdc_mbim.c
+++ b/drivers/net/usb/cdc_mbim.c
@@ -100,7 +100,7 @@ static const struct net_device_ops cdc_mbim_netdev_ops = {
 	.ndo_stop             = usbnet_stop,
 	.ndo_start_xmit       = usbnet_start_xmit,
 	.ndo_tx_timeout       = usbnet_tx_timeout,
-	.ndo_change_mtu       = usbnet_change_mtu,
+	.ndo_change_mtu       = cdc_ncm_change_mtu,
 	.ndo_set_mac_address  = eth_mac_addr,
 	.ndo_validate_addr    = eth_validate_addr,
 	.ndo_vlan_rx_add_vid  = cdc_mbim_rx_add_vid,
@@ -158,7 +158,7 @@ static int cdc_mbim_bind(struct usbnet *dev, struct usb_interface *intf)
 	if (!cdc_ncm_comm_intf_is_mbim(intf->cur_altsetting))
 		goto err;
 
-	ret = cdc_ncm_bind_common(dev, intf, data_altsetting, 0);
+	ret = cdc_ncm_bind_common(dev, intf, data_altsetting, dev->driver_info->data);
 	if (ret)
 		goto err;
 
@@ -342,7 +342,7 @@ static void do_neigh_solicit(struct usbnet *dev, u8 *buf, u16 tci)
 	in6_dev_put(in6_dev);
 
 	/* ipv6_stub != NULL if in6_dev_get returned an inet6_dev */
-	ipv6_stub->ndisc_send_na(netdev, NULL, &iph->saddr, &msg->target,
+	ipv6_stub->ndisc_send_na(netdev, &iph->saddr, &msg->target,
 				 is_router /* router */,
 				 true /* solicited */,
 				 false /* override */,
@@ -582,6 +582,26 @@ static const struct driver_info cdc_mbim_info_zlp = {
 	.tx_fixup = cdc_mbim_tx_fixup,
 };
 
+/* The spefication explicitly allows NDPs to be placed anywhere in the
+ * frame, but some devices fail unless the NDP is placed after the IP
+ * packets.  Using the CDC_NCM_FLAG_NDP_TO_END flags to force this
+ * behaviour.
+ *
+ * Note: The current implementation of this feature restricts each NTB
+ * to a single NDP, implying that multiplexed sessions cannot share an
+ * NTB. This might affect performace for multiplexed sessions.
+ */
+static const struct driver_info cdc_mbim_info_ndp_to_end = {
+	.description = "CDC MBIM",
+	.flags = FLAG_NO_SETINT | FLAG_MULTI_PACKET | FLAG_WWAN,
+	.bind = cdc_mbim_bind,
+	.unbind = cdc_mbim_unbind,
+	.manage_power = cdc_mbim_manage_power,
+	.rx_fixup = cdc_mbim_rx_fixup,
+	.tx_fixup = cdc_mbim_tx_fixup,
+	.data = CDC_NCM_FLAG_NDP_TO_END,
+};
+
 static const struct usb_device_id mbim_devs[] = {
 	/* This duplicate NCM entry is intentional. MBIM devices can
 	 * be disguised as NCM by default, and this is necessary to
@@ -597,6 +617,10 @@ static const struct usb_device_id mbim_devs[] = {
 	{ USB_VENDOR_AND_INTERFACE_INFO(0x0bdb, USB_CLASS_COMM, USB_CDC_SUBCLASS_MBIM, USB_CDC_PROTO_NONE),
 	  .driver_info = (unsigned long)&cdc_mbim_info,
 	},
+	/* Huawei E3372 fails unless NDP comes after the IP packets */
+	{ USB_DEVICE_AND_INTERFACE_INFO(0x12d1, 0x157d, USB_CLASS_COMM, USB_CDC_SUBCLASS_MBIM, USB_CDC_PROTO_NONE),
+	  .driver_info = (unsigned long)&cdc_mbim_info_ndp_to_end,
+	},
 	/* default entry */
 	{ USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_MBIM, USB_CDC_PROTO_NONE),
 	  .driver_info = (unsigned long)&cdc_mbim_info_zlp,
diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c
index db40175b1..e8a1144c5 100644
--- a/drivers/net/usb/cdc_ncm.c
+++ b/drivers/net/usb/cdc_ncm.c
@@ -41,6 +41,7 @@
 #include <linux/module.h>
 #include <linux/netdevice.h>
 #include <linux/ctype.h>
+#include <linux/etherdevice.h>
 #include <linux/ethtool.h>
 #include <linux/workqueue.h>
 #include <linux/mii.h>
@@ -689,15 +690,42 @@ static void cdc_ncm_free(struct cdc_ncm_ctx *ctx)
 	kfree(ctx);
 }
 
+/* we need to override the usbnet change_mtu ndo for two reasons:
+ *  - respect the negotiated maximum datagram size
+ *  - avoid unwanted changes to rx and tx buffers
+ */
+int cdc_ncm_change_mtu(struct net_device *net, int new_mtu)
+{
+	struct usbnet *dev = netdev_priv(net);
+	struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0];
+	int maxmtu = ctx->max_datagram_size - cdc_ncm_eth_hlen(dev);
+
+	if (new_mtu <= 0 || new_mtu > maxmtu)
+		return -EINVAL;
+	net->mtu = new_mtu;
+	return 0;
+}
+EXPORT_SYMBOL_GPL(cdc_ncm_change_mtu);
+
+static const struct net_device_ops cdc_ncm_netdev_ops = {
+	.ndo_open	     = usbnet_open,
+	.ndo_stop	     = usbnet_stop,
+	.ndo_start_xmit	     = usbnet_start_xmit,
+	.ndo_tx_timeout	     = usbnet_tx_timeout,
+	.ndo_change_mtu	     = cdc_ncm_change_mtu,
+	.ndo_set_mac_address = eth_mac_addr,
+	.ndo_validate_addr   = eth_validate_addr,
+};
+
 int cdc_ncm_bind_common(struct usbnet *dev, struct usb_interface *intf, u8 data_altsetting, int drvflags)
 {
-	const struct usb_cdc_union_desc *union_desc = NULL;
 	struct cdc_ncm_ctx *ctx;
 	struct usb_driver *driver;
 	u8 *buf;
 	int len;
 	int temp;
 	u8 iface_no;
+	struct usb_cdc_parsed_header hdr;
 
 	ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
 	if (!ctx)
@@ -722,69 +750,18 @@ int cdc_ncm_bind_common(struct usbnet *dev, struct usb_interface *intf, u8 data_
 	len = intf->cur_altsetting->extralen;
 
 	/* parse through descriptors associated with control interface */
-	while ((len > 0) && (buf[0] > 2) && (buf[0] <= len)) {
-
-		if (buf[1] != USB_DT_CS_INTERFACE)
-			goto advance;
-
-		switch (buf[2]) {
-		case USB_CDC_UNION_TYPE:
-			if (buf[0] < sizeof(*union_desc))
-				break;
-
-			union_desc = (const struct usb_cdc_union_desc *)buf;
-			/* the master must be the interface we are probing */
-			if (intf->cur_altsetting->desc.bInterfaceNumber !=
-			    union_desc->bMasterInterface0) {
-				dev_dbg(&intf->dev, "bogus CDC Union\n");
-				goto error;
-			}
-			ctx->data = usb_ifnum_to_if(dev->udev,
-						    union_desc->bSlaveInterface0);
-			break;
-
-		case USB_CDC_ETHERNET_TYPE:
-			if (buf[0] < sizeof(*(ctx->ether_desc)))
-				break;
-
-			ctx->ether_desc =
-					(const struct usb_cdc_ether_desc *)buf;
-			break;
-
-		case USB_CDC_NCM_TYPE:
-			if (buf[0] < sizeof(*(ctx->func_desc)))
-				break;
-
-			ctx->func_desc = (const struct usb_cdc_ncm_desc *)buf;
-			break;
-
-		case USB_CDC_MBIM_TYPE:
-			if (buf[0] < sizeof(*(ctx->mbim_desc)))
-				break;
-
-			ctx->mbim_desc = (const struct usb_cdc_mbim_desc *)buf;
-			break;
-
-		case USB_CDC_MBIM_EXTENDED_TYPE:
-			if (buf[0] < sizeof(*(ctx->mbim_extended_desc)))
-				break;
+	cdc_parse_cdc_header(&hdr, intf, buf, len);
 
-			ctx->mbim_extended_desc =
-				(const struct usb_cdc_mbim_extended_desc *)buf;
-			break;
-
-		default:
-			break;
-		}
-advance:
-		/* advance to next descriptor */
-		temp = buf[0];
-		buf += temp;
-		len -= temp;
-	}
+	if (hdr.usb_cdc_union_desc)
+		ctx->data = usb_ifnum_to_if(dev->udev,
+					    hdr.usb_cdc_union_desc->bSlaveInterface0);
+	ctx->ether_desc = hdr.usb_cdc_ether_desc;
+	ctx->func_desc = hdr.usb_cdc_ncm_desc;
+	ctx->mbim_desc = hdr.usb_cdc_mbim_desc;
+	ctx->mbim_extended_desc = hdr.usb_cdc_mbim_extended_desc;
 
 	/* some buggy devices have an IAD but no CDC Union */
-	if (!union_desc && intf->intf_assoc && intf->intf_assoc->bInterfaceCount == 2) {
+	if (!hdr.usb_cdc_union_desc && intf->intf_assoc && intf->intf_assoc->bInterfaceCount == 2) {
 		ctx->data = usb_ifnum_to_if(dev->udev, intf->cur_altsetting->desc.bInterfaceNumber + 1);
 		dev_dbg(&intf->dev, "CDC Union missing - got slave from IAD\n");
 	}
@@ -874,6 +851,9 @@ advance:
 	/* add our sysfs attrs */
 	dev->net->sysfs_groups[0] = &cdc_ncm_sysfs_attr_group;
 
+	/* must handle MTU changes */
+	dev->net->netdev_ops = &cdc_ncm_netdev_ops;
+
 	return 0;
 
 error2:
@@ -1006,10 +986,18 @@ static struct usb_cdc_ncm_ndp16 *cdc_ncm_ndp(struct cdc_ncm_ctx *ctx, struct sk_
 	* NTH16 header as we would normally do. NDP isn't written to the SKB yet, and
 	* the wNdpIndex field in the header is actually not consistent with reality. It will be later.
 	*/
-	if (ctx->drvflags & CDC_NCM_FLAG_NDP_TO_END)
+	if (ctx->drvflags & CDC_NCM_FLAG_NDP_TO_END) {
 		if (ctx->delayed_ndp16->dwSignature == sign)
 			return ctx->delayed_ndp16;
 
+		/* We can only push a single NDP to the end. Return
+		 * NULL to send what we've already got and queue this
+		 * skb for later.
+		 */
+		else if (ctx->delayed_ndp16->dwSignature)
+			return NULL;
+	}
+
 	/* follow the chain of NDPs, looking for a match */
 	while (ndpoffset) {
 		ndp16 = (struct usb_cdc_ncm_ndp16 *)(skb->data + ndpoffset);
@@ -1601,6 +1589,24 @@ static const struct usb_device_id cdc_devs[] = {
 	  .driver_info = (unsigned long) &wwan_info,
 	},
 
+	/* DW5812 LTE Verizon Mobile Broadband Card
+	 * Unlike DW5550 this device requires FLAG_NOARP
+	 */
+	{ USB_DEVICE_AND_INTERFACE_INFO(0x413c, 0x81bb,
+		USB_CLASS_COMM,
+		USB_CDC_SUBCLASS_NCM, USB_CDC_PROTO_NONE),
+	  .driver_info = (unsigned long)&wwan_noarp_info,
+	},
+
+	/* DW5813 LTE AT&T Mobile Broadband Card
+	 * Unlike DW5550 this device requires FLAG_NOARP
+	 */
+	{ USB_DEVICE_AND_INTERFACE_INFO(0x413c, 0x81bc,
+		USB_CLASS_COMM,
+		USB_CDC_SUBCLASS_NCM, USB_CDC_PROTO_NONE),
+	  .driver_info = (unsigned long)&wwan_noarp_info,
+	},
+
 	/* Dell branded MBM devices like DW5550 */
 	{ .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
 		| USB_DEVICE_ID_MATCH_VENDOR,
diff --git a/drivers/net/usb/dm9601.c b/drivers/net/usb/dm9601.c
index 6e9c344c7..0b4bdd391 100644
--- a/drivers/net/usb/dm9601.c
+++ b/drivers/net/usb/dm9601.c
@@ -258,7 +258,6 @@ static void dm9601_get_drvinfo(struct net_device *net,
 {
 	/* Inherit standard device info */
 	usbnet_get_drvinfo(net, info);
-	info->eedump_len = DM_EEPROM_LEN;
 }
 
 static u32 dm9601_get_link(struct net_device *net)
diff --git a/drivers/net/usb/kaweth.c b/drivers/net/usb/kaweth.c
index 2b231579d..b0f65bcfa 100644
--- a/drivers/net/usb/kaweth.c
+++ b/drivers/net/usb/kaweth.c
@@ -1174,12 +1174,6 @@ err_fw:
 	INIT_DELAYED_WORK(&kaweth->lowmem_work, kaweth_resubmit_tl);
 	usb_set_intfdata(intf, kaweth);
 
-#if 0
-// dma_supported() is deeply broken on almost all architectures
-	if (dma_supported (dev, 0xffffffffffffffffULL))
-		kaweth->net->features |= NETIF_F_HIGHDMA;
-#endif
-
 	SET_NETDEV_DEV(netdev, dev);
 	if (register_netdev(netdev) != 0) {
 		dev_err(dev, "Error registering netdev.\n");
diff --git a/drivers/net/usb/lan78xx.c b/drivers/net/usb/lan78xx.c
index a39518fc9..226668ead 100644
--- a/drivers/net/usb/lan78xx.c
+++ b/drivers/net/usb/lan78xx.c
@@ -19,7 +19,6 @@
 #include <linux/netdevice.h>
 #include <linux/etherdevice.h>
 #include <linux/ethtool.h>
-#include <linux/mii.h>
 #include <linux/usb.h>
 #include <linux/crc32.h>
 #include <linux/signal.h>
@@ -31,12 +30,13 @@
 #include <linux/ipv6.h>
 #include <linux/mdio.h>
 #include <net/ip6_checksum.h>
+#include <linux/microchipphy.h>
 #include "lan78xx.h"
 
 #define DRIVER_AUTHOR	"WOOJUNG HUH <woojung.huh@microchip.com>"
 #define DRIVER_DESC	"LAN78XX USB 3.0 Gigabit Ethernet Devices"
 #define DRIVER_NAME	"lan78xx"
-#define DRIVER_VERSION	"1.0.0"
+#define DRIVER_VERSION	"1.0.1"
 
 #define TX_TIMEOUT_JIFFIES		(5 * HZ)
 #define THROTTLE_JIFFIES		(HZ / 8)
@@ -57,7 +57,6 @@
 #define DEFAULT_RX_CSUM_ENABLE		(true)
 #define DEFAULT_TSO_CSUM_ENABLE		(true)
 #define DEFAULT_VLAN_FILTER_ENABLE	(true)
-#define INTERNAL_PHY_ID			(2)	/* 2: GMII */
 #define TX_OVERHEAD			(8)
 #define RXW_PADDING			2
 
@@ -275,10 +274,12 @@ struct lan78xx_net {
 	struct timer_list	delay;
 
 	unsigned long		data[5];
-	struct mii_if_info	mii;
 
 	int			link_on;
 	u8			mdix_ctrl;
+
+	u32			devid;
+	struct mii_bus		*mdiobus;
 };
 
 /* use ethtool to change the level for any given device */
@@ -411,222 +412,6 @@ static inline u32 mii_access(int id, int index, int read)
 	return ret;
 }
 
-static int lan78xx_mdio_read(struct net_device *netdev, int phy_id, int idx)
-{
-	struct lan78xx_net *dev = netdev_priv(netdev);
-	u32 val, addr;
-	int ret;
-
-	ret = usb_autopm_get_interface(dev->intf);
-	if (ret < 0)
-		return ret;
-
-	mutex_lock(&dev->phy_mutex);
-
-	/* confirm MII not busy */
-	ret = lan78xx_phy_wait_not_busy(dev);
-	if (ret < 0)
-		goto done;
-
-	/* set the address, index & direction (read from PHY) */
-	phy_id &= dev->mii.phy_id_mask;
-	idx &= dev->mii.reg_num_mask;
-	addr = mii_access(phy_id, idx, MII_READ);
-	ret = lan78xx_write_reg(dev, MII_ACC, addr);
-
-	ret = lan78xx_phy_wait_not_busy(dev);
-	if (ret < 0)
-		goto done;
-
-	ret = lan78xx_read_reg(dev, MII_DATA, &val);
-
-	ret = (int)(val & 0xFFFF);
-
-done:
-	mutex_unlock(&dev->phy_mutex);
-	usb_autopm_put_interface(dev->intf);
-	return ret;
-}
-
-static void lan78xx_mdio_write(struct net_device *netdev, int phy_id,
-			       int idx, int regval)
-{
-	struct lan78xx_net *dev = netdev_priv(netdev);
-	u32 val, addr;
-	int ret;
-
-	if (usb_autopm_get_interface(dev->intf) < 0)
-		return;
-
-	mutex_lock(&dev->phy_mutex);
-
-	/* confirm MII not busy */
-	ret = lan78xx_phy_wait_not_busy(dev);
-	if (ret < 0)
-		goto done;
-
-	val = regval;
-	ret = lan78xx_write_reg(dev, MII_DATA, val);
-
-	/* set the address, index & direction (write to PHY) */
-	phy_id &= dev->mii.phy_id_mask;
-	idx &= dev->mii.reg_num_mask;
-	addr = mii_access(phy_id, idx, MII_WRITE);
-	ret = lan78xx_write_reg(dev, MII_ACC, addr);
-
-	ret = lan78xx_phy_wait_not_busy(dev);
-	if (ret < 0)
-		goto done;
-
-done:
-	mutex_unlock(&dev->phy_mutex);
-	usb_autopm_put_interface(dev->intf);
-}
-
-static void lan78xx_mmd_write(struct net_device *netdev, int phy_id,
-			      int mmddev, int mmdidx, int regval)
-{
-	struct lan78xx_net *dev = netdev_priv(netdev);
-	u32 val, addr;
-	int ret;
-
-	if (usb_autopm_get_interface(dev->intf) < 0)
-		return;
-
-	mutex_lock(&dev->phy_mutex);
-
-	/* confirm MII not busy */
-	ret = lan78xx_phy_wait_not_busy(dev);
-	if (ret < 0)
-		goto done;
-
-	mmddev &= 0x1F;
-
-	/* set up device address for MMD */
-	ret = lan78xx_write_reg(dev, MII_DATA, mmddev);
-
-	phy_id &= dev->mii.phy_id_mask;
-	addr = mii_access(phy_id, PHY_MMD_CTL, MII_WRITE);
-	ret = lan78xx_write_reg(dev, MII_ACC, addr);
-
-	ret = lan78xx_phy_wait_not_busy(dev);
-	if (ret < 0)
-		goto done;
-
-	/* select register of MMD */
-	val = mmdidx;
-	ret = lan78xx_write_reg(dev, MII_DATA, val);
-
-	phy_id &= dev->mii.phy_id_mask;
-	addr = mii_access(phy_id, PHY_MMD_REG_DATA, MII_WRITE);
-	ret = lan78xx_write_reg(dev, MII_ACC, addr);
-
-	ret = lan78xx_phy_wait_not_busy(dev);
-	if (ret < 0)
-		goto done;
-
-	/* select register data for MMD */
-	val = PHY_MMD_CTRL_OP_DNI_ | mmddev;
-	ret = lan78xx_write_reg(dev, MII_DATA, val);
-
-	phy_id &= dev->mii.phy_id_mask;
-	addr = mii_access(phy_id, PHY_MMD_CTL, MII_WRITE);
-	ret = lan78xx_write_reg(dev, MII_ACC, addr);
-
-	ret = lan78xx_phy_wait_not_busy(dev);
-	if (ret < 0)
-		goto done;
-
-	/* write to MMD */
-	val = regval;
-	ret = lan78xx_write_reg(dev, MII_DATA, val);
-
-	phy_id &= dev->mii.phy_id_mask;
-	addr = mii_access(phy_id, PHY_MMD_REG_DATA, MII_WRITE);
-	ret = lan78xx_write_reg(dev, MII_ACC, addr);
-
-	ret = lan78xx_phy_wait_not_busy(dev);
-	if (ret < 0)
-		goto done;
-
-done:
-	mutex_unlock(&dev->phy_mutex);
-	usb_autopm_put_interface(dev->intf);
-}
-
-static int lan78xx_mmd_read(struct net_device *netdev, int phy_id,
-			    int mmddev, int mmdidx)
-{
-	struct lan78xx_net *dev = netdev_priv(netdev);
-	u32 val, addr;
-	int ret;
-
-	ret = usb_autopm_get_interface(dev->intf);
-	if (ret < 0)
-		return ret;
-
-	mutex_lock(&dev->phy_mutex);
-
-	/* confirm MII not busy */
-	ret = lan78xx_phy_wait_not_busy(dev);
-	if (ret < 0)
-		goto done;
-
-	/* set up device address for MMD */
-	ret = lan78xx_write_reg(dev, MII_DATA, mmddev);
-
-	phy_id &= dev->mii.phy_id_mask;
-	addr = mii_access(phy_id, PHY_MMD_CTL, MII_WRITE);
-	ret = lan78xx_write_reg(dev, MII_ACC, addr);
-
-	ret = lan78xx_phy_wait_not_busy(dev);
-	if (ret < 0)
-		goto done;
-
-	/* select register of MMD */
-	val = mmdidx;
-	ret = lan78xx_write_reg(dev, MII_DATA, val);
-
-	phy_id &= dev->mii.phy_id_mask;
-	addr = mii_access(phy_id, PHY_MMD_REG_DATA, MII_WRITE);
-	ret = lan78xx_write_reg(dev, MII_ACC, addr);
-
-	ret = lan78xx_phy_wait_not_busy(dev);
-	if (ret < 0)
-		goto done;
-
-	/* select register data for MMD */
-	val = PHY_MMD_CTRL_OP_DNI_ | mmddev;
-	ret = lan78xx_write_reg(dev, MII_DATA, val);
-
-	phy_id &= dev->mii.phy_id_mask;
-	addr = mii_access(phy_id, PHY_MMD_CTL, MII_WRITE);
-	ret = lan78xx_write_reg(dev, MII_ACC, addr);
-
-	ret = lan78xx_phy_wait_not_busy(dev);
-	if (ret < 0)
-		goto done;
-
-	/* set the address, index & direction (read from PHY) */
-	phy_id &= dev->mii.phy_id_mask;
-	addr = mii_access(phy_id, PHY_MMD_REG_DATA, MII_READ);
-	ret = lan78xx_write_reg(dev, MII_ACC, addr);
-
-	ret = lan78xx_phy_wait_not_busy(dev);
-	if (ret < 0)
-		goto done;
-
-	/* read from MMD */
-	ret = lan78xx_read_reg(dev, MII_DATA, &val);
-
-	ret = (int)(val & 0xFFFF);
-
-done:
-	mutex_unlock(&dev->phy_mutex);
-	usb_autopm_put_interface(dev->intf);
-	return ret;
-}
-
 static int lan78xx_wait_eeprom(struct lan78xx_net *dev)
 {
 	unsigned long start_time = jiffies;
@@ -1047,14 +832,13 @@ static int lan78xx_update_flowcontrol(struct lan78xx_net *dev, u8 duplex,
 
 static int lan78xx_link_reset(struct lan78xx_net *dev)
 {
-	struct mii_if_info *mii = &dev->mii;
+	struct phy_device *phydev = dev->net->phydev;
 	struct ethtool_cmd ecmd = { .cmd = ETHTOOL_GSET };
 	int ladv, radv, ret;
 	u32 buf;
 
 	/* clear PHY interrupt status */
-	/* VTSE PHY */
-	ret = lan78xx_mdio_read(dev->net, mii->phy_id, PHY_VTSE_INT_STS);
+	ret = phy_read(phydev, LAN88XX_INT_STS);
 	if (unlikely(ret < 0))
 		return -EIO;
 
@@ -1063,7 +847,9 @@ static int lan78xx_link_reset(struct lan78xx_net *dev)
 	if (unlikely(ret < 0))
 		return -EIO;
 
-	if (!mii_link_ok(mii) && dev->link_on) {
+	phy_read_status(phydev);
+
+	if (!phydev->link && dev->link_on) {
 		dev->link_on = false;
 		netif_carrier_off(dev->net);
 
@@ -1075,13 +861,12 @@ static int lan78xx_link_reset(struct lan78xx_net *dev)
 		ret = lan78xx_write_reg(dev, MAC_CR, buf);
 		if (unlikely(ret < 0))
 			return -EIO;
-	} else if (mii_link_ok(mii) && !dev->link_on) {
+	} else if (phydev->link && !dev->link_on) {
 		dev->link_on = true;
 
-		mii_check_media(mii, 1, 1);
-		mii_ethtool_gset(&dev->mii, &ecmd);
+		phy_ethtool_gset(phydev, &ecmd);
 
-		mii->mdio_read(mii->dev, mii->phy_id, PHY_VTSE_INT_STS);
+		ret = phy_read(phydev, LAN88XX_INT_STS);
 
 		if (dev->udev->speed == USB_SPEED_SUPER) {
 			if (ethtool_cmd_speed(&ecmd) == 1000) {
@@ -1102,11 +887,11 @@ static int lan78xx_link_reset(struct lan78xx_net *dev)
 			}
 		}
 
-		ladv = lan78xx_mdio_read(dev->net, mii->phy_id, MII_ADVERTISE);
+		ladv = phy_read(phydev, MII_ADVERTISE);
 		if (ladv < 0)
 			return ladv;
 
-		radv = lan78xx_mdio_read(dev->net, mii->phy_id, MII_LPA);
+		radv = phy_read(phydev, MII_LPA);
 		if (radv < 0)
 			return radv;
 
@@ -1279,6 +1064,8 @@ static int lan78xx_set_wol(struct net_device *netdev,
 
 	device_set_wakeup_enable(&dev->udev->dev, (bool)wol->wolopts);
 
+	phy_ethtool_set_wol(netdev->phydev, wol);
+
 	usb_autopm_put_interface(dev->intf);
 
 	return ret;
@@ -1287,49 +1074,39 @@ static int lan78xx_set_wol(struct net_device *netdev,
 static int lan78xx_get_eee(struct net_device *net, struct ethtool_eee *edata)
 {
 	struct lan78xx_net *dev = netdev_priv(net);
+	struct phy_device *phydev = net->phydev;
 	int ret;
 	u32 buf;
-	u32 adv, lpadv;
 
 	ret = usb_autopm_get_interface(dev->intf);
 	if (ret < 0)
 		return ret;
 
+	ret = phy_ethtool_get_eee(phydev, edata);
+	if (ret < 0)
+		goto exit;
+
 	ret = lan78xx_read_reg(dev, MAC_CR, &buf);
 	if (buf & MAC_CR_EEE_EN_) {
-		buf = lan78xx_mmd_read(dev->net, dev->mii.phy_id,
-				       PHY_MMD_DEV_7, PHY_EEE_ADVERTISEMENT);
-		adv = mmd_eee_adv_to_ethtool_adv_t(buf);
-		buf = lan78xx_mmd_read(dev->net, dev->mii.phy_id,
-				       PHY_MMD_DEV_7, PHY_EEE_LP_ADVERTISEMENT);
-		lpadv = mmd_eee_adv_to_ethtool_adv_t(buf);
-
 		edata->eee_enabled = true;
-		edata->supported = true;
-		edata->eee_active = !!(adv & lpadv);
-		edata->advertised = adv;
-		edata->lp_advertised = lpadv;
+		edata->eee_active = !!(edata->advertised &
+				       edata->lp_advertised);
 		edata->tx_lpi_enabled = true;
 		/* EEE_TX_LPI_REQ_DLY & tx_lpi_timer are same uSec unit */
 		ret = lan78xx_read_reg(dev, EEE_TX_LPI_REQ_DLY, &buf);
 		edata->tx_lpi_timer = buf;
 	} else {
-		buf = lan78xx_mmd_read(dev->net, dev->mii.phy_id,
-				       PHY_MMD_DEV_7, PHY_EEE_LP_ADVERTISEMENT);
-		lpadv = mmd_eee_adv_to_ethtool_adv_t(buf);
-
 		edata->eee_enabled = false;
 		edata->eee_active = false;
-		edata->supported = false;
-		edata->advertised = 0;
-		edata->lp_advertised = mmd_eee_adv_to_ethtool_adv_t(lpadv);
 		edata->tx_lpi_enabled = false;
 		edata->tx_lpi_timer = 0;
 	}
 
+	ret = 0;
+exit:
 	usb_autopm_put_interface(dev->intf);
 
-	return 0;
+	return ret;
 }
 
 static int lan78xx_set_eee(struct net_device *net, struct ethtool_eee *edata)
@@ -1347,9 +1124,10 @@ static int lan78xx_set_eee(struct net_device *net, struct ethtool_eee *edata)
 		buf |= MAC_CR_EEE_EN_;
 		ret = lan78xx_write_reg(dev, MAC_CR, buf);
 
-		buf = ethtool_adv_to_mmd_eee_adv_t(edata->advertised);
-		lan78xx_mmd_write(dev->net, dev->mii.phy_id,
-				  PHY_MMD_DEV_7, PHY_EEE_ADVERTISEMENT, buf);
+		phy_ethtool_set_eee(net->phydev, edata);
+
+		buf = (u32)edata->tx_lpi_timer;
+		ret = lan78xx_write_reg(dev, EEE_TX_LPI_REQ_DLY, buf);
 	} else {
 		ret = lan78xx_read_reg(dev, MAC_CR, &buf);
 		buf &= ~MAC_CR_EEE_EN_;
@@ -1363,19 +1141,14 @@ static int lan78xx_set_eee(struct net_device *net, struct ethtool_eee *edata)
 
 static u32 lan78xx_get_link(struct net_device *net)
 {
-	struct lan78xx_net *dev = netdev_priv(net);
+	phy_read_status(net->phydev);
 
-	return mii_link_ok(&dev->mii);
+	return net->phydev->link;
 }
 
 int lan78xx_nway_reset(struct net_device *net)
 {
-	struct lan78xx_net *dev = netdev_priv(net);
-
-	if ((!dev->mii.mdio_read) || (!dev->mii.mdio_write))
-		return -EOPNOTSUPP;
-
-	return mii_nway_restart(&dev->mii);
+	return phy_start_aneg(net->phydev);
 }
 
 static void lan78xx_get_drvinfo(struct net_device *net,
@@ -1402,36 +1175,78 @@ static void lan78xx_set_msglevel(struct net_device *net, u32 level)
 	dev->msg_enable = level;
 }
 
+static int lan78xx_get_mdix_status(struct net_device *net)
+{
+	struct phy_device *phydev = net->phydev;
+	int buf;
+
+	phy_write(phydev, LAN88XX_EXT_PAGE_ACCESS, LAN88XX_EXT_PAGE_SPACE_1);
+	buf = phy_read(phydev, LAN88XX_EXT_MODE_CTRL);
+	phy_write(phydev, LAN88XX_EXT_PAGE_ACCESS, LAN88XX_EXT_PAGE_SPACE_0);
+
+	return buf;
+}
+
+static void lan78xx_set_mdix_status(struct net_device *net, __u8 mdix_ctrl)
+{
+	struct lan78xx_net *dev = netdev_priv(net);
+	struct phy_device *phydev = net->phydev;
+	int buf;
+
+	if (mdix_ctrl == ETH_TP_MDI) {
+		phy_write(phydev, LAN88XX_EXT_PAGE_ACCESS,
+			  LAN88XX_EXT_PAGE_SPACE_1);
+		buf = phy_read(phydev, LAN88XX_EXT_MODE_CTRL);
+		buf &= ~LAN88XX_EXT_MODE_CTRL_MDIX_MASK_;
+		phy_write(phydev, LAN88XX_EXT_MODE_CTRL,
+			  buf | LAN88XX_EXT_MODE_CTRL_MDI_);
+		phy_write(phydev, LAN88XX_EXT_PAGE_ACCESS,
+			  LAN88XX_EXT_PAGE_SPACE_0);
+	} else if (mdix_ctrl == ETH_TP_MDI_X) {
+		phy_write(phydev, LAN88XX_EXT_PAGE_ACCESS,
+			  LAN88XX_EXT_PAGE_SPACE_1);
+		buf = phy_read(phydev, LAN88XX_EXT_MODE_CTRL);
+		buf &= ~LAN88XX_EXT_MODE_CTRL_MDIX_MASK_;
+		phy_write(phydev, LAN88XX_EXT_MODE_CTRL,
+			  buf | LAN88XX_EXT_MODE_CTRL_MDI_X_);
+		phy_write(phydev, LAN88XX_EXT_PAGE_ACCESS,
+			  LAN88XX_EXT_PAGE_SPACE_0);
+	} else if (mdix_ctrl == ETH_TP_MDI_AUTO) {
+		phy_write(phydev, LAN88XX_EXT_PAGE_ACCESS,
+			  LAN88XX_EXT_PAGE_SPACE_1);
+		buf = phy_read(phydev, LAN88XX_EXT_MODE_CTRL);
+		buf &= ~LAN88XX_EXT_MODE_CTRL_MDIX_MASK_;
+		phy_write(phydev, LAN88XX_EXT_MODE_CTRL,
+			  buf | LAN88XX_EXT_MODE_CTRL_AUTO_MDIX_);
+		phy_write(phydev, LAN88XX_EXT_PAGE_ACCESS,
+			  LAN88XX_EXT_PAGE_SPACE_0);
+	}
+	dev->mdix_ctrl = mdix_ctrl;
+}
+
 static int lan78xx_get_settings(struct net_device *net, struct ethtool_cmd *cmd)
 {
 	struct lan78xx_net *dev = netdev_priv(net);
-	struct mii_if_info *mii = &dev->mii;
+	struct phy_device *phydev = net->phydev;
 	int ret;
 	int buf;
 
-	if ((!dev->mii.mdio_read) || (!dev->mii.mdio_write))
-		return -EOPNOTSUPP;
-
 	ret = usb_autopm_get_interface(dev->intf);
 	if (ret < 0)
 		return ret;
 
-	ret = mii_ethtool_gset(&dev->mii, cmd);
+	ret = phy_ethtool_gset(phydev, cmd);
 
-	mii->mdio_write(mii->dev, mii->phy_id,
-			PHY_EXT_GPIO_PAGE, PHY_EXT_GPIO_PAGE_SPACE_1);
-	buf = mii->mdio_read(mii->dev, mii->phy_id, PHY_EXT_MODE_CTRL);
-	mii->mdio_write(mii->dev, mii->phy_id,
-			PHY_EXT_GPIO_PAGE, PHY_EXT_GPIO_PAGE_SPACE_0);
+	buf = lan78xx_get_mdix_status(net);
 
-	buf &= PHY_EXT_MODE_CTRL_MDIX_MASK_;
-	if (buf == PHY_EXT_MODE_CTRL_AUTO_MDIX_) {
+	buf &= LAN88XX_EXT_MODE_CTRL_MDIX_MASK_;
+	if (buf == LAN88XX_EXT_MODE_CTRL_AUTO_MDIX_) {
 		cmd->eth_tp_mdix = ETH_TP_MDI_AUTO;
 		cmd->eth_tp_mdix_ctrl = ETH_TP_MDI_AUTO;
-	} else if (buf == PHY_EXT_MODE_CTRL_MDI_) {
+	} else if (buf == LAN88XX_EXT_MODE_CTRL_MDI_) {
 		cmd->eth_tp_mdix = ETH_TP_MDI;
 		cmd->eth_tp_mdix_ctrl = ETH_TP_MDI;
-	} else if (buf == PHY_EXT_MODE_CTRL_MDI_X_) {
+	} else if (buf == LAN88XX_EXT_MODE_CTRL_MDI_X_) {
 		cmd->eth_tp_mdix = ETH_TP_MDI_X;
 		cmd->eth_tp_mdix_ctrl = ETH_TP_MDI_X;
 	}
@@ -1444,70 +1259,27 @@ static int lan78xx_get_settings(struct net_device *net, struct ethtool_cmd *cmd)
 static int lan78xx_set_settings(struct net_device *net, struct ethtool_cmd *cmd)
 {
 	struct lan78xx_net *dev = netdev_priv(net);
-	struct mii_if_info *mii = &dev->mii;
+	struct phy_device *phydev = net->phydev;
 	int ret = 0;
 	int temp;
 
-	if ((!dev->mii.mdio_read) || (!dev->mii.mdio_write))
-		return -EOPNOTSUPP;
-
 	ret = usb_autopm_get_interface(dev->intf);
 	if (ret < 0)
 		return ret;
 
 	if (dev->mdix_ctrl != cmd->eth_tp_mdix_ctrl) {
-		if (cmd->eth_tp_mdix_ctrl == ETH_TP_MDI) {
-			mii->mdio_write(mii->dev, mii->phy_id,
-					PHY_EXT_GPIO_PAGE,
-					PHY_EXT_GPIO_PAGE_SPACE_1);
-			temp = mii->mdio_read(mii->dev, mii->phy_id,
-					PHY_EXT_MODE_CTRL);
-			temp &= ~PHY_EXT_MODE_CTRL_MDIX_MASK_;
-			mii->mdio_write(mii->dev, mii->phy_id,
-					PHY_EXT_MODE_CTRL,
-					temp | PHY_EXT_MODE_CTRL_MDI_);
-			mii->mdio_write(mii->dev, mii->phy_id,
-					PHY_EXT_GPIO_PAGE,
-					PHY_EXT_GPIO_PAGE_SPACE_0);
-		} else if (cmd->eth_tp_mdix_ctrl == ETH_TP_MDI_X) {
-			mii->mdio_write(mii->dev, mii->phy_id,
-					PHY_EXT_GPIO_PAGE,
-					PHY_EXT_GPIO_PAGE_SPACE_1);
-			temp = mii->mdio_read(mii->dev, mii->phy_id,
-					PHY_EXT_MODE_CTRL);
-			temp &= ~PHY_EXT_MODE_CTRL_MDIX_MASK_;
-			mii->mdio_write(mii->dev, mii->phy_id,
-					PHY_EXT_MODE_CTRL,
-					temp | PHY_EXT_MODE_CTRL_MDI_X_);
-			mii->mdio_write(mii->dev, mii->phy_id,
-					PHY_EXT_GPIO_PAGE,
-					PHY_EXT_GPIO_PAGE_SPACE_0);
-		} else if (cmd->eth_tp_mdix_ctrl == ETH_TP_MDI_AUTO) {
-			mii->mdio_write(mii->dev, mii->phy_id,
-					PHY_EXT_GPIO_PAGE,
-					PHY_EXT_GPIO_PAGE_SPACE_1);
-			temp = mii->mdio_read(mii->dev, mii->phy_id,
-							PHY_EXT_MODE_CTRL);
-			temp &= ~PHY_EXT_MODE_CTRL_MDIX_MASK_;
-			mii->mdio_write(mii->dev, mii->phy_id,
-					PHY_EXT_MODE_CTRL,
-					temp | PHY_EXT_MODE_CTRL_AUTO_MDIX_);
-			mii->mdio_write(mii->dev, mii->phy_id,
-					PHY_EXT_GPIO_PAGE,
-					PHY_EXT_GPIO_PAGE_SPACE_0);
-		}
+		lan78xx_set_mdix_status(net, cmd->eth_tp_mdix_ctrl);
 	}
 
 	/* change speed & duplex */
-	ret = mii_ethtool_sset(&dev->mii, cmd);
+	ret = phy_ethtool_sset(phydev, cmd);
 
 	if (!cmd->autoneg) {
 		/* force link down */
-		temp = mii->mdio_read(mii->dev, mii->phy_id, MII_BMCR);
-		mii->mdio_write(mii->dev, mii->phy_id, MII_BMCR,
-				temp | BMCR_LOOPBACK);
+		temp = phy_read(phydev, MII_BMCR);
+		phy_write(phydev, MII_BMCR, temp | BMCR_LOOPBACK);
 		mdelay(1);
-		mii->mdio_write(mii->dev, mii->phy_id, MII_BMCR, temp);
+		phy_write(phydev, MII_BMCR, temp);
 	}
 
 	usb_autopm_put_interface(dev->intf);
@@ -1537,12 +1309,10 @@ static const struct ethtool_ops lan78xx_ethtool_ops = {
 
 static int lan78xx_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd)
 {
-	struct lan78xx_net *dev = netdev_priv(netdev);
-
 	if (!netif_running(netdev))
 		return -EINVAL;
 
-	return generic_mii_ioctl(&dev->mii, if_mii(rq), cmd, NULL);
+	return phy_mii_ioctl(netdev->phydev, rq, cmd);
 }
 
 static void lan78xx_init_mac_address(struct lan78xx_net *dev)
@@ -1598,53 +1368,183 @@ static void lan78xx_init_mac_address(struct lan78xx_net *dev)
 	ether_addr_copy(dev->net->dev_addr, addr);
 }
 
-static void lan78xx_mii_init(struct lan78xx_net *dev)
+/* MDIO read and write wrappers for phylib */
+static int lan78xx_mdiobus_read(struct mii_bus *bus, int phy_id, int idx)
 {
-	/* Initialize MII structure */
-	dev->mii.dev = dev->net;
-	dev->mii.mdio_read = lan78xx_mdio_read;
-	dev->mii.mdio_write = lan78xx_mdio_write;
-	dev->mii.phy_id_mask = 0x1f;
-	dev->mii.reg_num_mask = 0x1f;
-	dev->mii.phy_id = INTERNAL_PHY_ID;
-	dev->mii.supports_gmii = true;
+	struct lan78xx_net *dev = bus->priv;
+	u32 val, addr;
+	int ret;
+
+	ret = usb_autopm_get_interface(dev->intf);
+	if (ret < 0)
+		return ret;
+
+	mutex_lock(&dev->phy_mutex);
+
+	/* confirm MII not busy */
+	ret = lan78xx_phy_wait_not_busy(dev);
+	if (ret < 0)
+		goto done;
+
+	/* set the address, index & direction (read from PHY) */
+	addr = mii_access(phy_id, idx, MII_READ);
+	ret = lan78xx_write_reg(dev, MII_ACC, addr);
+
+	ret = lan78xx_phy_wait_not_busy(dev);
+	if (ret < 0)
+		goto done;
+
+	ret = lan78xx_read_reg(dev, MII_DATA, &val);
+
+	ret = (int)(val & 0xFFFF);
+
+done:
+	mutex_unlock(&dev->phy_mutex);
+	usb_autopm_put_interface(dev->intf);
+	return ret;
+}
+
+static int lan78xx_mdiobus_write(struct mii_bus *bus, int phy_id, int idx,
+				 u16 regval)
+{
+	struct lan78xx_net *dev = bus->priv;
+	u32 val, addr;
+	int ret;
+
+	ret = usb_autopm_get_interface(dev->intf);
+	if (ret < 0)
+		return ret;
+
+	mutex_lock(&dev->phy_mutex);
+
+	/* confirm MII not busy */
+	ret = lan78xx_phy_wait_not_busy(dev);
+	if (ret < 0)
+		goto done;
+
+	val = (u32)regval;
+	ret = lan78xx_write_reg(dev, MII_DATA, val);
+
+	/* set the address, index & direction (write to PHY) */
+	addr = mii_access(phy_id, idx, MII_WRITE);
+	ret = lan78xx_write_reg(dev, MII_ACC, addr);
+
+	ret = lan78xx_phy_wait_not_busy(dev);
+	if (ret < 0)
+		goto done;
+
+done:
+	mutex_unlock(&dev->phy_mutex);
+	usb_autopm_put_interface(dev->intf);
+	return 0;
+}
+
+static int lan78xx_mdio_init(struct lan78xx_net *dev)
+{
+	int ret;
+	int i;
+
+	dev->mdiobus = mdiobus_alloc();
+	if (!dev->mdiobus) {
+		netdev_err(dev->net, "can't allocate MDIO bus\n");
+		return -ENOMEM;
+	}
+
+	dev->mdiobus->priv = (void *)dev;
+	dev->mdiobus->read = lan78xx_mdiobus_read;
+	dev->mdiobus->write = lan78xx_mdiobus_write;
+	dev->mdiobus->name = "lan78xx-mdiobus";
+
+	snprintf(dev->mdiobus->id, MII_BUS_ID_SIZE, "usb-%03d:%03d",
+		 dev->udev->bus->busnum, dev->udev->devnum);
+
+	dev->mdiobus->irq = kzalloc(sizeof(int) * PHY_MAX_ADDR, GFP_KERNEL);
+	if (!dev->mdiobus->irq) {
+		ret = -ENOMEM;
+		goto exit1;
+	}
+
+	/* handle our own interrupt */
+	for (i = 0; i < PHY_MAX_ADDR; i++)
+		dev->mdiobus->irq[i] = PHY_IGNORE_INTERRUPT;
+
+	switch (dev->devid & ID_REV_CHIP_ID_MASK_) {
+	case 0x78000000:
+	case 0x78500000:
+		/* set to internal PHY id */
+		dev->mdiobus->phy_mask = ~(1 << 1);
+		break;
+	}
+
+	ret = mdiobus_register(dev->mdiobus);
+	if (ret) {
+		netdev_err(dev->net, "can't register MDIO bus\n");
+		goto exit2;
+	}
+
+	netdev_dbg(dev->net, "registered mdiobus bus %s\n", dev->mdiobus->id);
+	return 0;
+exit2:
+	kfree(dev->mdiobus->irq);
+exit1:
+	mdiobus_free(dev->mdiobus);
+	return ret;
+}
+
+static void lan78xx_remove_mdio(struct lan78xx_net *dev)
+{
+	mdiobus_unregister(dev->mdiobus);
+	kfree(dev->mdiobus->irq);
+	mdiobus_free(dev->mdiobus);
+}
+
+static void lan78xx_link_status_change(struct net_device *net)
+{
+	/* nothing to do */
 }
 
 static int lan78xx_phy_init(struct lan78xx_net *dev)
 {
-	int temp;
-	struct mii_if_info *mii = &dev->mii;
+	int ret;
+	struct phy_device *phydev = dev->net->phydev;
 
-	if ((!mii->mdio_write) || (!mii->mdio_read))
-		return -EOPNOTSUPP;
+	phydev = phy_find_first(dev->mdiobus);
+	if (!phydev) {
+		netdev_err(dev->net, "no PHY found\n");
+		return -EIO;
+	}
 
-	temp = mii->mdio_read(mii->dev, mii->phy_id, MII_ADVERTISE);
-	temp |= ADVERTISE_ALL;
-	mii->mdio_write(mii->dev, mii->phy_id, MII_ADVERTISE,
-			temp | ADVERTISE_CSMA |
-			ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM);
+	ret = phy_connect_direct(dev->net, phydev,
+				 lan78xx_link_status_change,
+				 PHY_INTERFACE_MODE_GMII);
+	if (ret) {
+		netdev_err(dev->net, "can't attach PHY to %s\n",
+			   dev->mdiobus->id);
+		return -EIO;
+	}
 
 	/* set to AUTOMDIX */
-	mii->mdio_write(mii->dev, mii->phy_id,
-			PHY_EXT_GPIO_PAGE, PHY_EXT_GPIO_PAGE_SPACE_1);
-	temp = mii->mdio_read(mii->dev, mii->phy_id, PHY_EXT_MODE_CTRL);
-	temp &= ~PHY_EXT_MODE_CTRL_MDIX_MASK_;
-	mii->mdio_write(mii->dev, mii->phy_id, PHY_EXT_MODE_CTRL,
-			temp | PHY_EXT_MODE_CTRL_AUTO_MDIX_);
-	mii->mdio_write(mii->dev, mii->phy_id,
-			PHY_EXT_GPIO_PAGE, PHY_EXT_GPIO_PAGE_SPACE_0);
-	dev->mdix_ctrl = ETH_TP_MDI_AUTO;
-
-	/* MAC doesn't support 1000HD */
-	temp = mii->mdio_read(mii->dev, mii->phy_id, MII_CTRL1000);
-	mii->mdio_write(mii->dev, mii->phy_id, MII_CTRL1000,
-			temp & ~ADVERTISE_1000HALF);
-
-	/* clear interrupt */
-	mii->mdio_read(mii->dev, mii->phy_id, PHY_VTSE_INT_STS);
-	mii->mdio_write(mii->dev, mii->phy_id, PHY_VTSE_INT_MASK,
-			PHY_VTSE_INT_MASK_MDINTPIN_EN_ |
-			PHY_VTSE_INT_MASK_LINK_CHANGE_);
+	lan78xx_set_mdix_status(dev->net, ETH_TP_MDI_AUTO);
+
+	/* MAC doesn't support 1000T Half */
+	phydev->supported &= ~SUPPORTED_1000baseT_Half;
+	phydev->supported |= (SUPPORTED_10baseT_Half |
+			      SUPPORTED_10baseT_Full |
+			      SUPPORTED_100baseT_Half |
+			      SUPPORTED_100baseT_Full |
+			      SUPPORTED_1000baseT_Full |
+			      SUPPORTED_Pause | SUPPORTED_Asym_Pause);
+	genphy_config_aneg(phydev);
+
+	/* Workaround to enable PHY interrupt.
+	 * phy_start_interrupts() is API for requesting and enabling
+	 * PHY interrupt. However, USB-to-Ethernet device can't use
+	 * request_irq() called in phy_start_interrupts().
+	 * Set PHY to PHY_HALTED and call phy_start()
+	 * to make a call to phy_enable_interrupts()
+	 */
+	phy_stop(phydev);
+	phy_start(phydev);
 
 	netif_dbg(dev, ifup, dev->net, "phy initialised successfully");
 
@@ -1930,6 +1830,10 @@ static int lan78xx_reset(struct lan78xx_net *dev)
 
 	lan78xx_init_mac_address(dev);
 
+	/* save DEVID for later usage */
+	ret = lan78xx_read_reg(dev, ID_REV, &buf);
+	dev->devid = buf;
+
 	/* Respond to the IN token with a NAK */
 	ret = lan78xx_read_reg(dev, USB_CFG0, &buf);
 	buf |= USB_CFG_BIR_;
@@ -2002,23 +1906,12 @@ static int lan78xx_reset(struct lan78xx_net *dev)
 			netdev_warn(dev->net, "timeout waiting for PHY Reset");
 			return -EIO;
 		}
-	} while (buf & PMT_CTL_PHY_RST_);
-
-	lan78xx_mii_init(dev);
-
-	ret = lan78xx_phy_init(dev);
+	} while ((buf & PMT_CTL_PHY_RST_) || !(buf & PMT_CTL_READY_));
 
 	ret = lan78xx_read_reg(dev, MAC_CR, &buf);
-
-	buf |= MAC_CR_GMII_EN_;
 	buf |= MAC_CR_AUTO_DUPLEX_ | MAC_CR_AUTO_SPEED_;
-
 	ret = lan78xx_write_reg(dev, MAC_CR, buf);
 
-	/* enable on PHY */
-	if (buf & MAC_CR_EEE_EN_)
-		lan78xx_mmd_write(dev->net, dev->mii.phy_id, 0x07, 0x3C, 0x06);
-
 	/* enable PHY interrupts */
 	ret = lan78xx_read_reg(dev, INT_EP_CTL, &buf);
 	buf |= INT_ENP_PHY_INT;
@@ -2042,9 +1935,6 @@ static int lan78xx_reset(struct lan78xx_net *dev)
 	buf |= FCT_RX_CTL_EN_;
 	ret = lan78xx_write_reg(dev, FCT_RX_CTL, buf);
 
-	if (!mii_nway_restart(&dev->mii))
-		netif_dbg(dev, link, dev->net, "autoneg initiated");
-
 	return 0;
 }
 
@@ -2061,6 +1951,10 @@ static int lan78xx_open(struct net_device *net)
 	if (ret < 0)
 		goto done;
 
+	ret = lan78xx_phy_init(dev);
+	if (ret < 0)
+		goto done;
+
 	/* for Link Check */
 	if (dev->urb_intr) {
 		ret = usb_submit_urb(dev->urb_intr, GFP_KERNEL);
@@ -2115,6 +2009,10 @@ int lan78xx_stop(struct net_device *net)
 {
 	struct lan78xx_net		*dev = netdev_priv(net);
 
+	phy_stop(net->phydev);
+	phy_disconnect(net->phydev);
+	net->phydev = NULL;
+
 	clear_bit(EVENT_DEV_OPEN, &dev->flags);
 	netif_stop_queue(net);
 
@@ -2395,6 +2293,8 @@ static int lan78xx_bind(struct lan78xx_net *dev, struct usb_interface *intf)
 	/* Init all registers */
 	ret = lan78xx_reset(dev);
 
+	lan78xx_mdio_init(dev);
+
 	dev->net->flags |= IFF_MULTICAST;
 
 	pdata->wol = WAKE_MAGIC;
@@ -2406,6 +2306,8 @@ static void lan78xx_unbind(struct lan78xx_net *dev, struct usb_interface *intf)
 {
 	struct lan78xx_priv *pdata = (struct lan78xx_priv *)(dev->data[0]);
 
+	lan78xx_remove_mdio(dev);
+
 	if (pdata) {
 		netif_dbg(dev, ifdown, dev->net, "free pdata");
 		kfree(pdata);
@@ -2522,11 +2424,6 @@ static int lan78xx_rx(struct lan78xx_net *dev, struct sk_buff *skb)
 			skb_pull(skb, align_count);
 	}
 
-	if (unlikely(skb->len < 0)) {
-		netdev_warn(dev->net, "invalid rx length<0 %d", skb->len);
-		return 0;
-	}
-
 	return 1;
 }
 
@@ -3307,7 +3204,6 @@ int lan78xx_suspend(struct usb_interface *intf, pm_message_t message)
 	int ret;
 	int event;
 
-	ret = 0;
 	event = message.event;
 
 	if (!dev->suspend_count++) {
@@ -3389,6 +3285,7 @@ int lan78xx_suspend(struct usb_interface *intf, pm_message_t message)
 		}
 	}
 
+	ret = 0;
 out:
 	return ret;
 }
@@ -3459,6 +3356,9 @@ int lan78xx_reset_resume(struct usb_interface *intf)
 	struct lan78xx_net *dev = usb_get_intfdata(intf);
 
 	lan78xx_reset(dev);
+
+	lan78xx_phy_init(dev);
+
 	return lan78xx_resume(intf);
 }
 
diff --git a/drivers/net/usb/lan78xx.h b/drivers/net/usb/lan78xx.h
index ae7562ee7..a93fb653e 100644
--- a/drivers/net/usb/lan78xx.h
+++ b/drivers/net/usb/lan78xx.h
@@ -549,7 +549,6 @@
 #define LTM_INACTIVE1_TIMER10_		(0x0000FFFF)
 
 #define MAC_CR				(0x100)
-#define MAC_CR_GMII_EN_			(0x00080000)
 #define MAC_CR_EEE_TX_CLK_STOP_EN_	(0x00040000)
 #define MAC_CR_EEE_EN_			(0x00020000)
 #define MAC_CR_EEE_TLAR_EN_		(0x00010000)
@@ -874,196 +873,4 @@
 #define OTP_TPVSR_VAL			(OTP_BASE_ADDR + 4 * 0x3A)
 #define OTP_TPVHR_VAL			(OTP_BASE_ADDR + 4 * 0x3B)
 #define OTP_TPVSA_VAL			(OTP_BASE_ADDR + 4 * 0x3C)
-
-#define PHY_ID1				(0x02)
-#define PHY_ID2				(0x03)
-
-#define PHY_DEV_ID_OUI_VTSE		(0x04001C)
-#define PHY_DEV_ID_MODEL_VTSE_8502	(0x23)
-
-#define PHY_AUTONEG_ADV			(0x04)
-#define NWAY_AR_NEXT_PAGE_		(0x8000)
-#define NWAY_AR_REMOTE_FAULT_		(0x2000)
-#define NWAY_AR_ASM_DIR_		(0x0800)
-#define NWAY_AR_PAUSE_			(0x0400)
-#define NWAY_AR_100T4_CAPS_		(0x0200)
-#define NWAY_AR_100TX_FD_CAPS_		(0x0100)
-#define NWAY_AR_SELECTOR_FIELD_		(0x001F)
-#define NWAY_AR_100TX_HD_CAPS_		(0x0080)
-#define NWAY_AR_10T_FD_CAPS_		(0x0040)
-#define NWAY_AR_10T_HD_CAPS_		(0x0020)
-#define NWAY_AR_ALL_CAPS_		(NWAY_AR_10T_HD_CAPS_ | \
-					 NWAY_AR_10T_FD_CAPS_ | \
-					 NWAY_AR_100TX_HD_CAPS_ | \
-					 NWAY_AR_100TX_FD_CAPS_)
-#define NWAY_AR_PAUSE_MASK		(NWAY_AR_PAUSE_ | NWAY_AR_ASM_DIR_)
-
-#define PHY_LP_ABILITY			(0x05)
-#define NWAY_LPAR_NEXT_PAGE_		(0x8000)
-#define NWAY_LPAR_ACKNOWLEDGE_		(0x4000)
-#define NWAY_LPAR_REMOTE_FAULT_		(0x2000)
-#define NWAY_LPAR_ASM_DIR_		(0x0800)
-#define NWAY_LPAR_PAUSE_		(0x0400)
-#define NWAY_LPAR_100T4_CAPS_		(0x0200)
-#define NWAY_LPAR_100TX_FD_CAPS_	(0x0100)
-#define NWAY_LPAR_100TX_HD_CAPS_	(0x0080)
-#define NWAY_LPAR_10T_FD_CAPS_		(0x0040)
-#define NWAY_LPAR_10T_HD_CAPS_		(0x0020)
-#define NWAY_LPAR_SELECTOR_FIELD_	(0x001F)
-
-#define PHY_AUTONEG_EXP			(0x06)
-#define NWAY_ER_PAR_DETECT_FAULT_	(0x0010)
-#define NWAY_ER_LP_NEXT_PAGE_CAPS_	(0x0008)
-#define NWAY_ER_NEXT_PAGE_CAPS_		(0x0004)
-#define NWAY_ER_PAGE_RXD_		(0x0002)
-#define NWAY_ER_LP_NWAY_CAPS_		(0x0001)
-
-#define PHY_NEXT_PAGE_TX		(0x07)
-#define NPTX_NEXT_PAGE_			(0x8000)
-#define NPTX_MSG_PAGE_			(0x2000)
-#define NPTX_ACKNOWLDGE2_		(0x1000)
-#define NPTX_TOGGLE_			(0x0800)
-#define NPTX_MSG_CODE_FIELD_		(0x0001)
-
-#define PHY_LP_NEXT_PAGE		(0x08)
-#define LP_RNPR_NEXT_PAGE_		(0x8000)
-#define LP_RNPR_ACKNOWLDGE_		(0x4000)
-#define LP_RNPR_MSG_PAGE_		(0x2000)
-#define LP_RNPR_ACKNOWLDGE2_		(0x1000)
-#define LP_RNPR_TOGGLE_			(0x0800)
-#define LP_RNPR_MSG_CODE_FIELD_		(0x0001)
-
-#define PHY_1000T_CTRL			(0x09)
-#define CR_1000T_TEST_MODE_4_		(0x8000)
-#define CR_1000T_TEST_MODE_3_		(0x6000)
-#define CR_1000T_TEST_MODE_2_		(0x4000)
-#define CR_1000T_TEST_MODE_1_		(0x2000)
-#define CR_1000T_MS_ENABLE_		(0x1000)
-#define CR_1000T_MS_VALUE_		(0x0800)
-#define CR_1000T_REPEATER_DTE_		(0x0400)
-#define CR_1000T_FD_CAPS_		(0x0200)
-#define CR_1000T_HD_CAPS_		(0x0100)
-#define CR_1000T_ASYM_PAUSE_		(0x0080)
-#define CR_1000T_TEST_MODE_NORMAL_	(0x0000)
-
-#define PHY_1000T_STATUS		(0x0A)
-#define SR_1000T_MS_CONFIG_FAULT_	(0x8000)
-#define SR_1000T_MS_CONFIG_RES_		(0x4000)
-#define SR_1000T_LOCAL_RX_STATUS_	(0x2000)
-#define SR_1000T_REMOTE_RX_STATUS_	(0x1000)
-#define SR_1000T_LP_FD_CAPS_		(0x0800)
-#define SR_1000T_LP_HD_CAPS_		(0x0400)
-#define SR_1000T_ASYM_PAUSE_DIR_	(0x0100)
-#define SR_1000T_IDLE_ERROR_CNT_	(0x00FF)
-#define SR_1000T_REMOTE_RX_STATUS_SHIFT		12
-#define SR_1000T_LOCAL_RX_STATUS_SHIFT		13
-#define SR_1000T_PHY_EXCESSIVE_IDLE_ERR_COUNT	5
-#define FFE_IDLE_ERR_COUNT_TIMEOUT_20		20
-#define FFE_IDLE_ERR_COUNT_TIMEOUT_100		100
-
-#define PHY_EXT_STATUS			(0x0F)
-#define IEEE_ESR_1000X_FD_CAPS_		(0x8000)
-#define IEEE_ESR_1000X_HD_CAPS_		(0x4000)
-#define IEEE_ESR_1000T_FD_CAPS_		(0x2000)
-#define IEEE_ESR_1000T_HD_CAPS_		(0x1000)
-#define PHY_TX_POLARITY_MASK_		(0x0100)
-#define PHY_TX_NORMAL_POLARITY_		(0x0000)
-#define AUTO_POLARITY_DISABLE_		(0x0010)
-
-#define PHY_MMD_CTL			(0x0D)
-#define PHY_MMD_CTRL_OP_MASK_		(0xC000)
-#define PHY_MMD_CTRL_OP_REG_		(0x0000)
-#define PHY_MMD_CTRL_OP_DNI_		(0x4000)
-#define PHY_MMD_CTRL_OP_DPIRW_		(0x8000)
-#define PHY_MMD_CTRL_OP_DPIWO_		(0xC000)
-#define PHY_MMD_CTRL_DEV_ADDR_MASK_	(0x001F)
-
-#define PHY_MMD_REG_DATA		(0x0E)
-
-/* VTSE Vendor Specific registers */
-#define PHY_VTSE_BYPASS				(0x12)
-#define PHY_VTSE_BYPASS_DISABLE_PAIR_SWAP_	(0x0020)
-
-#define PHY_VTSE_INT_MASK			(0x19)
-#define PHY_VTSE_INT_MASK_MDINTPIN_EN_		(0x8000)
-#define PHY_VTSE_INT_MASK_SPEED_CHANGE_		(0x4000)
-#define PHY_VTSE_INT_MASK_LINK_CHANGE_		(0x2000)
-#define PHY_VTSE_INT_MASK_FDX_CHANGE_		(0x1000)
-#define PHY_VTSE_INT_MASK_AUTONEG_ERR_		(0x0800)
-#define PHY_VTSE_INT_MASK_AUTONEG_DONE_		(0x0400)
-#define PHY_VTSE_INT_MASK_POE_DETECT_		(0x0200)
-#define PHY_VTSE_INT_MASK_SYMBOL_ERR_		(0x0100)
-#define PHY_VTSE_INT_MASK_FAST_LINK_FAIL_	(0x0080)
-#define PHY_VTSE_INT_MASK_WOL_EVENT_		(0x0040)
-#define PHY_VTSE_INT_MASK_EXTENDED_INT_		(0x0020)
-#define PHY_VTSE_INT_MASK_RESERVED_		(0x0010)
-#define PHY_VTSE_INT_MASK_FALSE_CARRIER_	(0x0008)
-#define PHY_VTSE_INT_MASK_LINK_SPEED_DS_	(0x0004)
-#define PHY_VTSE_INT_MASK_MASTER_SLAVE_DONE_	(0x0002)
-#define PHY_VTSE_INT_MASK_RX__ER_		(0x0001)
-
-#define PHY_VTSE_INT_STS			(0x1A)
-#define PHY_VTSE_INT_STS_INT_ACTIVE_		(0x8000)
-#define PHY_VTSE_INT_STS_SPEED_CHANGE_		(0x4000)
-#define PHY_VTSE_INT_STS_LINK_CHANGE_		(0x2000)
-#define PHY_VTSE_INT_STS_FDX_CHANGE_		(0x1000)
-#define PHY_VTSE_INT_STS_AUTONEG_ERR_		(0x0800)
-#define PHY_VTSE_INT_STS_AUTONEG_DONE_		(0x0400)
-#define PHY_VTSE_INT_STS_POE_DETECT_		(0x0200)
-#define PHY_VTSE_INT_STS_SYMBOL_ERR_		(0x0100)
-#define PHY_VTSE_INT_STS_FAST_LINK_FAIL_	(0x0080)
-#define PHY_VTSE_INT_STS_WOL_EVENT_		(0x0040)
-#define PHY_VTSE_INT_STS_EXTENDED_INT_		(0x0020)
-#define PHY_VTSE_INT_STS_RESERVED_		(0x0010)
-#define PHY_VTSE_INT_STS_FALSE_CARRIER_		(0x0008)
-#define PHY_VTSE_INT_STS_LINK_SPEED_DS_		(0x0004)
-#define PHY_VTSE_INT_STS_MASTER_SLAVE_DONE_	(0x0002)
-#define PHY_VTSE_INT_STS_RX_ER_			(0x0001)
-
-/* VTSE PHY registers */
-#define PHY_EXT_GPIO_PAGE		(0x1F)
-#define PHY_EXT_GPIO_PAGE_SPACE_0	(0x0000)
-#define PHY_EXT_GPIO_PAGE_SPACE_1	(0x0001)
-#define PHY_EXT_GPIO_PAGE_SPACE_2	(0x0002)
-
-/* Extended Register Page 1 space */
-#define PHY_EXT_MODE_CTRL		(0x13)
-#define PHY_EXT_MODE_CTRL_MDIX_MASK_	(0x000C)
-#define PHY_EXT_MODE_CTRL_AUTO_MDIX_	(0x0000)
-#define PHY_EXT_MODE_CTRL_MDI_		(0x0008)
-#define PHY_EXT_MODE_CTRL_MDI_X_	(0x000C)
-
-#define PHY_ANA_10BASE_T_HD		0x01
-#define PHY_ANA_10BASE_T_FD		0x02
-#define PHY_ANA_100BASE_TX_HD		0x04
-#define PHY_ANA_100BASE_TX_FD		0x08
-#define PHY_ANA_1000BASE_T_FD		0x10
-#define PHY_ANA_ALL_SUPPORTED_MEDIA	(PHY_ANA_10BASE_T_HD |	 \
-					 PHY_ANA_10BASE_T_FD |	 \
-					 PHY_ANA_100BASE_TX_HD | \
-					 PHY_ANA_100BASE_TX_FD | \
-					 PHY_ANA_1000BASE_T_FD)
-/* PHY MMD registers */
-#define PHY_MMD_DEV_3				3
-
-#define PHY_EEE_PCS_STATUS			(0x1)
-#define PHY_EEE_PCS_STATUS_TX_LPI_RCVD_		((WORD)0x0800)
-#define PHY_EEE_PCS_STATUS_RX_LPI_RCVD_		((WORD)0x0400)
-#define PHY_EEE_PCS_STATUS_TX_LPI_IND_		((WORD)0x0200)
-#define PHY_EEE_PCS_STATUS_RX_LPI_IND_		((WORD)0x0100)
-#define PHY_EEE_PCS_STATUS_PCS_RCV_LNK_STS_	((WORD)0x0004)
-
-#define PHY_EEE_CAPABILITIES			(0x14)
-#define PHY_EEE_CAPABILITIES_1000BT_EEE_	((WORD)0x0004)
-#define PHY_EEE_CAPABILITIES_100BT_EEE_		((WORD)0x0002)
-
-#define PHY_MMD_DEV_7				7
-
-#define PHY_EEE_ADVERTISEMENT			(0x3C)
-#define PHY_EEE_ADVERTISEMENT_1000BT_EEE_	((WORD)0x0004)
-#define PHY_EEE_ADVERTISEMENT_100BT_EEE_	((WORD)0x0002)
-
-#define PHY_EEE_LP_ADVERTISEMENT		(0x3D)
-#define PHY_EEE_1000BT_EEE_CAPABLE_		((WORD)0x0004)
-#define PHY_EEE_100BT_EEE_CAPABLE_		((WORD)0x0002)
 #endif /* _LAN78XX_H */
diff --git a/drivers/net/usb/mcs7830.c b/drivers/net/usb/mcs7830.c
index 82d844a8e..4f345bd4e 100644
--- a/drivers/net/usb/mcs7830.c
+++ b/drivers/net/usb/mcs7830.c
@@ -445,7 +445,6 @@ static int mcs7830_get_regs_len(struct net_device *net)
 static void mcs7830_get_drvinfo(struct net_device *net, struct ethtool_drvinfo *drvinfo)
 {
 	usbnet_get_drvinfo(net, drvinfo);
-	drvinfo->regdump_len = mcs7830_get_regs_len(net);
 }
 
 static void mcs7830_get_regs(struct net_device *net, struct ethtool_regs *regs, void *data)
diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c
index 66e0853d1..5fccc5a81 100644
--- a/drivers/net/usb/qmi_wwan.c
+++ b/drivers/net/usb/qmi_wwan.c
@@ -229,11 +229,11 @@ static int qmi_wwan_bind(struct usbnet *dev, struct usb_interface *intf)
 	u8 *buf = intf->cur_altsetting->extra;
 	int len = intf->cur_altsetting->extralen;
 	struct usb_interface_descriptor *desc = &intf->cur_altsetting->desc;
-	struct usb_cdc_union_desc *cdc_union = NULL;
-	struct usb_cdc_ether_desc *cdc_ether = NULL;
-	u32 found = 0;
+	struct usb_cdc_union_desc *cdc_union;
+	struct usb_cdc_ether_desc *cdc_ether;
 	struct usb_driver *driver = driver_of(intf);
 	struct qmi_wwan_state *info = (void *)&dev->data;
+	struct usb_cdc_parsed_header hdr;
 
 	BUILD_BUG_ON((sizeof(((struct usbnet *)0)->data) <
 		      sizeof(struct qmi_wwan_state)));
@@ -243,63 +243,9 @@ static int qmi_wwan_bind(struct usbnet *dev, struct usb_interface *intf)
 	info->data = intf;
 
 	/* and a number of CDC descriptors */
-	while (len > 3) {
-		struct usb_descriptor_header *h = (void *)buf;
-
-		/* ignore any misplaced descriptors */
-		if (h->bDescriptorType != USB_DT_CS_INTERFACE)
-			goto next_desc;
-
-		/* buf[2] is CDC descriptor subtype */
-		switch (buf[2]) {
-		case USB_CDC_HEADER_TYPE:
-			if (found & 1 << USB_CDC_HEADER_TYPE) {
-				dev_dbg(&intf->dev, "extra CDC header\n");
-				goto err;
-			}
-			if (h->bLength != sizeof(struct usb_cdc_header_desc)) {
-				dev_dbg(&intf->dev, "CDC header len %u\n",
-					h->bLength);
-				goto err;
-			}
-			break;
-		case USB_CDC_UNION_TYPE:
-			if (found & 1 << USB_CDC_UNION_TYPE) {
-				dev_dbg(&intf->dev, "extra CDC union\n");
-				goto err;
-			}
-			if (h->bLength != sizeof(struct usb_cdc_union_desc)) {
-				dev_dbg(&intf->dev, "CDC union len %u\n",
-					h->bLength);
-				goto err;
-			}
-			cdc_union = (struct usb_cdc_union_desc *)buf;
-			break;
-		case USB_CDC_ETHERNET_TYPE:
-			if (found & 1 << USB_CDC_ETHERNET_TYPE) {
-				dev_dbg(&intf->dev, "extra CDC ether\n");
-				goto err;
-			}
-			if (h->bLength != sizeof(struct usb_cdc_ether_desc)) {
-				dev_dbg(&intf->dev, "CDC ether len %u\n",
-					h->bLength);
-				goto err;
-			}
-			cdc_ether = (struct usb_cdc_ether_desc *)buf;
-			break;
-		}
-
-		/* Remember which CDC functional descriptors we've seen.  Works
-		 * for all types we care about, of which USB_CDC_ETHERNET_TYPE
-		 * (0x0f) is the highest numbered
-		 */
-		if (buf[2] < 32)
-			found |= 1 << buf[2];
-
-next_desc:
-		len -= h->bLength;
-		buf += h->bLength;
-	}
+	cdc_parse_cdc_header(&hdr, intf, buf, len);
+	cdc_union = hdr.usb_cdc_union_desc;
+	cdc_ether = hdr.usb_cdc_ether_desc;
 
 	/* Use separate control and data interfaces if we found a CDC Union */
 	if (cdc_union) {
@@ -539,6 +485,10 @@ static const struct usb_device_id products[] = {
 					      USB_CDC_PROTO_NONE),
 		.driver_info        = (unsigned long)&qmi_wwan_info,
 	},
+	{	/* HP lt4112 LTE/HSPA+ Gobi 4G Module (Huawei me906e) */
+		USB_DEVICE_AND_INTERFACE_INFO(0x03f0, 0x581d, USB_CLASS_VENDOR_SPEC, 1, 7),
+		.driver_info = (unsigned long)&qmi_wwan_info,
+	},
 
 	/* 3. Combined interface devices matching on interface number */
 	{QMI_FIXED_INTF(0x0408, 0xea42, 4)},	/* Yota / Megafon M100-1 */
@@ -792,7 +742,7 @@ static const struct usb_device_id products[] = {
 	{QMI_FIXED_INTF(0x413c, 0x81a9, 8)},	/* Dell Wireless 5808e Gobi(TM) 4G LTE Mobile Broadband Card */
 	{QMI_FIXED_INTF(0x413c, 0x81b1, 8)},	/* Dell Wireless 5809e Gobi(TM) 4G LTE Mobile Broadband Card */
 	{QMI_FIXED_INTF(0x03f0, 0x4e1d, 8)},	/* HP lt4111 LTE/EV-DO/HSPA+ Gobi 4G Module */
-	{QMI_FIXED_INTF(0x03f0, 0x581d, 4)},	/* HP lt4112 LTE/HSPA+ Gobi 4G Module (Huawei me906e) */
+	{QMI_FIXED_INTF(0x22de, 0x9061, 3)},	/* WeTelecom WPD-600N */
 
 	/* 4. Gobi 1000 devices */
 	{QMI_GOBI1K_DEVICE(0x05c6, 0x9212)},	/* Acer Gobi Modem Device */
@@ -823,6 +773,7 @@ static const struct usb_device_id products[] = {
 	{QMI_GOBI_DEVICE(0x05c6, 0x9245)},	/* Samsung Gobi 2000 Modem device (VL176) */
 	{QMI_GOBI_DEVICE(0x03f0, 0x251d)},	/* HP Gobi 2000 Modem device (VP412) */
 	{QMI_GOBI_DEVICE(0x05c6, 0x9215)},	/* Acer Gobi 2000 Modem device (VP413) */
+	{QMI_FIXED_INTF(0x05c6, 0x9215, 4)},	/* Quectel EC20 Mini PCIe */
 	{QMI_GOBI_DEVICE(0x05c6, 0x9265)},	/* Asus Gobi 2000 Modem device (VR305) */
 	{QMI_GOBI_DEVICE(0x05c6, 0x9235)},	/* Top Global Gobi 2000 Modem device (VR306) */
 	{QMI_GOBI_DEVICE(0x05c6, 0x9275)},	/* iRex Technologies Gobi 2000 Modem device (VR307) */
@@ -854,10 +805,24 @@ static const struct usb_device_id products[] = {
 };
 MODULE_DEVICE_TABLE(usb, products);
 
+static bool quectel_ec20_detected(struct usb_interface *intf)
+{
+	struct usb_device *dev = interface_to_usbdev(intf);
+
+	if (dev->actconfig &&
+	    le16_to_cpu(dev->descriptor.idVendor) == 0x05c6 &&
+	    le16_to_cpu(dev->descriptor.idProduct) == 0x9215 &&
+	    dev->actconfig->desc.bNumInterfaces == 5)
+		return true;
+
+	return false;
+}
+
 static int qmi_wwan_probe(struct usb_interface *intf,
 			  const struct usb_device_id *prod)
 {
 	struct usb_device_id *id = (struct usb_device_id *)prod;
+	struct usb_interface_descriptor *desc = &intf->cur_altsetting->desc;
 
 	/* Workaround to enable dynamic IDs.  This disables usbnet
 	 * blacklisting functionality.  Which, if required, can be
@@ -869,6 +834,12 @@ static int qmi_wwan_probe(struct usb_interface *intf,
 		id->driver_info = (unsigned long)&qmi_wwan_info;
 	}
 
+	/* Quectel EC20 quirk where we've QMI on interface 4 instead of 0 */
+	if (quectel_ec20_detected(intf) && desc->bInterfaceNumber == 0) {
+		dev_dbg(&intf->dev, "Quectel EC20 quirk, skipping interface 0\n");
+		return -ENODEV;
+	}
+
 	return usbnet_probe(intf, id);
 }
 
diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
index d9427ca3d..2fb637ad5 100644
--- a/drivers/net/usb/r8152.c
+++ b/drivers/net/usb/r8152.c
@@ -3067,17 +3067,6 @@ static int rtl8152_open(struct net_device *netdev)
 
 	mutex_lock(&tp->control);
 
-	/* The WORK_ENABLE may be set when autoresume occurs */
-	if (test_bit(WORK_ENABLE, &tp->flags)) {
-		clear_bit(WORK_ENABLE, &tp->flags);
-		usb_kill_urb(tp->intr_urb);
-		cancel_delayed_work_sync(&tp->schedule);
-
-		/* disable the tx/rx, if the workqueue has enabled them. */
-		if (netif_carrier_ok(netdev))
-			tp->rtl_ops.disable(tp);
-	}
-
 	tp->rtl_ops.up(tp);
 
 	rtl8152_set_speed(tp, AUTONEG_ENABLE,
@@ -3124,12 +3113,6 @@ static int rtl8152_close(struct net_device *netdev)
 	} else {
 		mutex_lock(&tp->control);
 
-		/* The autosuspend may have been enabled and wouldn't
-		 * be disable when autoresume occurs, because the
-		 * netif_running() would be false.
-		 */
-		rtl_runtime_suspend_enable(tp, false);
-
 		tp->rtl_ops.down(tp);
 
 		mutex_unlock(&tp->control);
@@ -3512,7 +3495,7 @@ static int rtl8152_resume(struct usb_interface *intf)
 		netif_device_attach(tp->netdev);
 	}
 
-	if (netif_running(tp->netdev)) {
+	if (netif_running(tp->netdev) && tp->netdev->flags & IFF_UP) {
 		if (test_bit(SELECTIVE_SUSPEND, &tp->flags)) {
 			rtl_runtime_suspend_enable(tp, false);
 			clear_bit(SELECTIVE_SUSPEND, &tp->flags);
@@ -3532,6 +3515,8 @@ static int rtl8152_resume(struct usb_interface *intf)
 		}
 		usb_submit_urb(tp->intr_urb, GFP_KERNEL);
 	} else if (test_bit(SELECTIVE_SUSPEND, &tp->flags)) {
+		if (tp->netdev->flags & IFF_UP)
+			rtl_runtime_suspend_enable(tp, false);
 		clear_bit(SELECTIVE_SUSPEND, &tp->flags);
 	}
 
@@ -3540,6 +3525,14 @@ static int rtl8152_resume(struct usb_interface *intf)
 	return 0;
 }
 
+static int rtl8152_reset_resume(struct usb_interface *intf)
+{
+	struct r8152 *tp = usb_get_intfdata(intf);
+
+	clear_bit(SELECTIVE_SUSPEND, &tp->flags);
+	return rtl8152_resume(intf);
+}
+
 static void rtl8152_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
 {
 	struct r8152 *tp = netdev_priv(dev);
@@ -4291,7 +4284,7 @@ static struct usb_driver rtl8152_driver = {
 	.disconnect =	rtl8152_disconnect,
 	.suspend =	rtl8152_suspend,
 	.resume =	rtl8152_resume,
-	.reset_resume =	rtl8152_resume,
+	.reset_resume =	rtl8152_reset_resume,
 	.pre_reset =	rtl8152_pre_reset,
 	.post_reset =	rtl8152_post_reset,
 	.supports_autosuspend = 1,
diff --git a/drivers/net/usb/smsc75xx.c b/drivers/net/usb/smsc75xx.c
index d9e789226..30033dbe6 100644
--- a/drivers/net/usb/smsc75xx.c
+++ b/drivers/net/usb/smsc75xx.c
@@ -2185,11 +2185,6 @@ static int smsc75xx_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
 			skb_pull(skb, align_count);
 	}
 
-	if (unlikely(skb->len < 0)) {
-		netdev_warn(dev->net, "invalid rx length<0 %d\n", skb->len);
-		return 0;
-	}
-
 	return 1;
 }
 
diff --git a/drivers/net/usb/smsc95xx.c b/drivers/net/usb/smsc95xx.c
index 26423adc3..66b3ab9f6 100644
--- a/drivers/net/usb/smsc95xx.c
+++ b/drivers/net/usb/smsc95xx.c
@@ -1815,11 +1815,6 @@ static int smsc95xx_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
 			skb_pull(skb, align_count);
 	}
 
-	if (unlikely(skb->len < 0)) {
-		netdev_warn(dev->net, "invalid rx length<0 %d\n", skb->len);
-		return 0;
-	}
-
 	return 1;
 }
 
diff --git a/drivers/net/usb/sr9800.c b/drivers/net/usb/sr9800.c
index 953de1326..a50df0d8f 100644
--- a/drivers/net/usb/sr9800.c
+++ b/drivers/net/usb/sr9800.c
@@ -470,14 +470,10 @@ static int sr_get_eeprom(struct net_device *net,
 static void sr_get_drvinfo(struct net_device *net,
 				 struct ethtool_drvinfo *info)
 {
-	struct usbnet *dev = netdev_priv(net);
-	struct sr_data *data = (struct sr_data *)&dev->data;
-
 	/* Inherit standard device info */
 	usbnet_get_drvinfo(net, info);
 	strncpy(info->driver, DRIVER_NAME, sizeof(info->driver));
 	strncpy(info->version, DRIVER_VERSION, sizeof(info->version));
-	info->eedump_len = data->eeprom_len;
 }
 
 static u32 sr_get_link(struct net_device *net)
diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c
index b4cf10781..0744bf2ef 100644
--- a/drivers/net/usb/usbnet.c
+++ b/drivers/net/usb/usbnet.c
@@ -42,6 +42,7 @@
 #include <linux/mii.h>
 #include <linux/usb.h>
 #include <linux/usb/usbnet.h>
+#include <linux/usb/cdc.h>
 #include <linux/slab.h>
 #include <linux/kernel.h>
 #include <linux/pm_runtime.h>
@@ -1661,12 +1662,6 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod)
 	 * bind() should set rx_urb_size in that case.
 	 */
 	dev->hard_mtu = net->mtu + net->hard_header_len;
-#if 0
-// dma_supported() is deeply broken on almost all architectures
-	// possible with some EHCI controllers
-	if (dma_supported (&udev->dev, DMA_BIT_MASK(64)))
-		net->features |= NETIF_F_HIGHDMA;
-#endif
 
 	net->netdev_ops = &usbnet_netdev_ops;
 	net->watchdog_timeo = TX_TIMEOUT_JIFFIES;
@@ -1962,6 +1957,143 @@ out:
 	return err;
 }
 
+int cdc_parse_cdc_header(struct usb_cdc_parsed_header *hdr,
+				struct usb_interface *intf,
+				u8 *buffer,
+				int buflen)
+{
+	/* duplicates are ignored */
+	struct usb_cdc_union_desc *union_header = NULL;
+
+	/* duplicates are not tolerated */
+	struct usb_cdc_header_desc *header = NULL;
+	struct usb_cdc_ether_desc *ether = NULL;
+	struct usb_cdc_mdlm_detail_desc *detail = NULL;
+	struct usb_cdc_mdlm_desc *desc = NULL;
+
+	unsigned int elength;
+	int cnt = 0;
+
+	memset(hdr, 0x00, sizeof(struct usb_cdc_parsed_header));
+	hdr->phonet_magic_present = false;
+	while (buflen > 0) {
+		elength = buffer[0];
+		if (!elength) {
+			dev_err(&intf->dev, "skipping garbage byte\n");
+			elength = 1;
+			goto next_desc;
+		}
+		if (buffer[1] != USB_DT_CS_INTERFACE) {
+			dev_err(&intf->dev, "skipping garbage\n");
+			goto next_desc;
+		}
+
+		switch (buffer[2]) {
+		case USB_CDC_UNION_TYPE: /* we've found it */
+			if (elength < sizeof(struct usb_cdc_union_desc))
+				goto next_desc;
+			if (union_header) {
+				dev_err(&intf->dev, "More than one union descriptor, skipping ...\n");
+				goto next_desc;
+			}
+			union_header = (struct usb_cdc_union_desc *)buffer;
+			break;
+		case USB_CDC_COUNTRY_TYPE:
+			if (elength < sizeof(struct usb_cdc_country_functional_desc))
+				goto next_desc;
+			hdr->usb_cdc_country_functional_desc =
+				(struct usb_cdc_country_functional_desc *)buffer;
+			break;
+		case USB_CDC_HEADER_TYPE:
+			if (elength != sizeof(struct usb_cdc_header_desc))
+				goto next_desc;
+			if (header)
+				return -EINVAL;
+			header = (struct usb_cdc_header_desc *)buffer;
+			break;
+		case USB_CDC_ACM_TYPE:
+			if (elength < sizeof(struct usb_cdc_acm_descriptor))
+				goto next_desc;
+			hdr->usb_cdc_acm_descriptor =
+				(struct usb_cdc_acm_descriptor *)buffer;
+			break;
+		case USB_CDC_ETHERNET_TYPE:
+			if (elength != sizeof(struct usb_cdc_ether_desc))
+				goto next_desc;
+			if (ether)
+				return -EINVAL;
+			ether = (struct usb_cdc_ether_desc *)buffer;
+			break;
+		case USB_CDC_CALL_MANAGEMENT_TYPE:
+			if (elength < sizeof(struct usb_cdc_call_mgmt_descriptor))
+				goto next_desc;
+			hdr->usb_cdc_call_mgmt_descriptor =
+				(struct usb_cdc_call_mgmt_descriptor *)buffer;
+			break;
+		case USB_CDC_DMM_TYPE:
+			if (elength < sizeof(struct usb_cdc_dmm_desc))
+				goto next_desc;
+			hdr->usb_cdc_dmm_desc =
+				(struct usb_cdc_dmm_desc *)buffer;
+			break;
+		case USB_CDC_MDLM_TYPE:
+			if (elength < sizeof(struct usb_cdc_mdlm_desc *))
+				goto next_desc;
+			if (desc)
+				return -EINVAL;
+			desc = (struct usb_cdc_mdlm_desc *)buffer;
+			break;
+		case USB_CDC_MDLM_DETAIL_TYPE:
+			if (elength < sizeof(struct usb_cdc_mdlm_detail_desc *))
+				goto next_desc;
+			if (detail)
+				return -EINVAL;
+			detail = (struct usb_cdc_mdlm_detail_desc *)buffer;
+			break;
+		case USB_CDC_NCM_TYPE:
+			if (elength < sizeof(struct usb_cdc_ncm_desc))
+				goto next_desc;
+			hdr->usb_cdc_ncm_desc = (struct usb_cdc_ncm_desc *)buffer;
+			break;
+		case USB_CDC_MBIM_TYPE:
+			if (elength < sizeof(struct usb_cdc_mbim_desc))
+				goto next_desc;
+
+			hdr->usb_cdc_mbim_desc = (struct usb_cdc_mbim_desc *)buffer;
+			break;
+		case USB_CDC_MBIM_EXTENDED_TYPE:
+			if (elength < sizeof(struct usb_cdc_mbim_extended_desc))
+				break;
+			hdr->usb_cdc_mbim_extended_desc =
+				(struct usb_cdc_mbim_extended_desc *)buffer;
+			break;
+		case CDC_PHONET_MAGIC_NUMBER:
+			hdr->phonet_magic_present = true;
+			break;
+		default:
+			/*
+			 * there are LOTS more CDC descriptors that
+			 * could legitimately be found here.
+			 */
+			dev_dbg(&intf->dev, "Ignoring descriptor: type %02x, length %ud\n",
+					buffer[2], elength);
+			goto next_desc;
+		}
+		cnt++;
+next_desc:
+		buflen -= elength;
+		buffer += elength;
+	}
+	hdr->usb_cdc_union_desc = union_header;
+	hdr->usb_cdc_header_desc = header;
+	hdr->usb_cdc_mdlm_detail_desc = detail;
+	hdr->usb_cdc_mdlm_desc = desc;
+	hdr->usb_cdc_ether_desc = ether;
+	return cnt;
+}
+
+EXPORT_SYMBOL(cdc_parse_cdc_header);
+
 /*
  * The function can't be called inside suspend/resume callback,
  * otherwise deadlock will be caused.