4 files changed, 73 insertions, 12 deletions

diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c
index bf76ecccc2e6..d5c47a2a62dc 100644
--- a/drivers/net/usb/cdc_ncm.c
+++ b/drivers/net/usb/cdc_ncm.c
@@ -933,7 +933,8 @@ int cdc_ncm_bind_common(struct usbnet *dev, struct usb_interface *intf, u8 data_
 
 	cdc_ncm_find_endpoints(dev, ctx->data);
 	cdc_ncm_find_endpoints(dev, ctx->control);
-	if (!dev->in || !dev->out || !dev->status) {
+	if (!dev->in || !dev->out ||
+	    (!dev->status && dev->driver_info->flags & FLAG_LINK_INTR)) {
 		dev_dbg(&intf->dev, "failed to collect endpoints\n");
 		goto error2;
 	}
@@ -1925,6 +1926,34 @@ static const struct driver_info cdc_ncm_zlp_info = {
 	.set_rx_mode = usbnet_cdc_update_filter,
 };
 
+/* Same as cdc_ncm_info, but with FLAG_SEND_ZLP */
+static const struct driver_info apple_tethering_interface_info = {
+	.description = "CDC NCM (Apple Tethering)",
+	.flags = FLAG_POINTTOPOINT | FLAG_NO_SETINT | FLAG_MULTI_PACKET
+			| FLAG_LINK_INTR | FLAG_ETHER | FLAG_SEND_ZLP,
+	.bind = cdc_ncm_bind,
+	.unbind = cdc_ncm_unbind,
+	.manage_power = usbnet_manage_power,
+	.status = cdc_ncm_status,
+	.rx_fixup = cdc_ncm_rx_fixup,
+	.tx_fixup = cdc_ncm_tx_fixup,
+	.set_rx_mode = usbnet_cdc_update_filter,
+};
+
+/* Same as apple_tethering_interface_info, but without FLAG_LINK_INTR */
+static const struct driver_info apple_private_interface_info = {
+	.description = "CDC NCM (Apple Private)",
+	.flags = FLAG_POINTTOPOINT | FLAG_NO_SETINT | FLAG_MULTI_PACKET
+			| FLAG_ETHER | FLAG_SEND_ZLP,
+	.bind = cdc_ncm_bind,
+	.unbind = cdc_ncm_unbind,
+	.manage_power = usbnet_manage_power,
+	.status = cdc_ncm_status,
+	.rx_fixup = cdc_ncm_rx_fixup,
+	.tx_fixup = cdc_ncm_tx_fixup,
+	.set_rx_mode = usbnet_cdc_update_filter,
+};
+
 /* Same as cdc_ncm_info, but with FLAG_WWAN */
 static const struct driver_info wwan_info = {
 	.description = "Mobile Broadband Network Device",
@@ -1954,6 +1983,22 @@ static const struct driver_info wwan_noarp_info = {
 };
 
 static const struct usb_device_id cdc_devs[] = {
+	/* iPhone */
+	{ USB_DEVICE_INTERFACE_NUMBER(0x05ac, 0x12a8, 2),
+		.driver_info = (unsigned long)&apple_tethering_interface_info,
+	},
+	{ USB_DEVICE_INTERFACE_NUMBER(0x05ac, 0x12a8, 4),
+		.driver_info = (unsigned long)&apple_private_interface_info,
+	},
+
+	/* iPad */
+	{ USB_DEVICE_INTERFACE_NUMBER(0x05ac, 0x12ab, 2),
+		.driver_info = (unsigned long)&apple_tethering_interface_info,
+	},
+	{ USB_DEVICE_INTERFACE_NUMBER(0x05ac, 0x12ab, 4),
+		.driver_info = (unsigned long)&apple_private_interface_info,
+	},
+
 	/* Ericsson MBM devices like F5521gw */
 	{ .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
 		| USB_DEVICE_ID_MATCH_VENDOR,
diff --git a/drivers/net/usb/lan78xx.c b/drivers/net/usb/lan78xx.c
index 5a2c38b63012..8adf77e3557e 100644
--- a/drivers/net/usb/lan78xx.c
+++ b/drivers/net/usb/lan78xx.c
@@ -380,11 +380,6 @@ struct skb_data {		/* skb->cb is one of these */
 	int num_of_packet;
 };
 
-struct usb_context {
-	struct usb_ctrlrequest req;
-	struct lan78xx_net *dev;
-};
-
 #define EVENT_TX_HALT			0
 #define EVENT_RX_HALT			1
 #define EVENT_RX_MEMORY			2
@@ -2946,6 +2941,8 @@ static int lan78xx_reset(struct lan78xx_net *dev)
 		return ret;
 
 	buf |= HW_CFG_MEF_;
+	buf |= HW_CFG_CLK125_EN_;
+	buf |= HW_CFG_REFCLK25_EN_;
 
 	ret = lan78xx_write_reg(dev, HW_CFG, buf);
 	if (ret < 0)
@@ -3034,8 +3031,11 @@ static int lan78xx_reset(struct lan78xx_net *dev)
 		return ret;
 
 	/* LAN7801 only has RGMII mode */
-	if (dev->chipid == ID_REV_CHIP_ID_7801_)
+	if (dev->chipid == ID_REV_CHIP_ID_7801_) {
 		buf &= ~MAC_CR_GMII_EN_;
+		/* Enable Auto Duplex and Auto speed */
+		buf |= MAC_CR_AUTO_DUPLEX_ | MAC_CR_AUTO_SPEED_;
+	}
 
 	if (dev->chipid == ID_REV_CHIP_ID_7800_ ||
 	    dev->chipid == ID_REV_CHIP_ID_7850_) {
diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
index 19df1cd9f072..15e12f46d0ea 100644
--- a/drivers/net/usb/r8152.c
+++ b/drivers/net/usb/r8152.c
@@ -1774,6 +1774,7 @@ static int vendor_mac_passthru_addr_read(struct r8152 *tp, struct sockaddr *sa)
 		goto amacout;
 	}
 	memcpy(sa->sa_data, buf, 6);
+	tp->netdev->addr_assign_type = NET_ADDR_STOLEN;
 	netif_info(tp, probe, tp->netdev,
 		   "Using pass-thru MAC addr %pM\n", sa->sa_data);
 
@@ -8554,6 +8555,19 @@ static int rtl8152_system_resume(struct r8152 *tp)
 		usb_submit_urb(tp->intr_urb, GFP_NOIO);
 	}
 
+	/* If the device is RTL8152_INACCESSIBLE here then we should do a
+	 * reset. This is important because the usb_lock_device_for_reset()
+	 * that happens as a result of usb_queue_reset_device() will silently
+	 * fail if the device was suspended or if too much time passed.
+	 *
+	 * NOTE: The device is locked here so we can directly do the reset.
+	 * We don't need usb_lock_device_for_reset() because that's just a
+	 * wrapper over device_lock() and device_resume() (which calls us)
+	 * does that for us.
+	 */
+	if (test_bit(RTL8152_INACCESSIBLE, &tp->flags))
+		usb_reset_device(tp->udev);
+
 	return 0;
 }
 
@@ -8634,6 +8648,13 @@ static int rtl8152_system_suspend(struct r8152 *tp)
 		tasklet_enable(&tp->tx_tl);
 	}
 
+	/* If we're inaccessible here then some of the work that we did to
+	 * get the adapter ready for suspend didn't work. Queue up a wakeup
+	 * event so we can try again.
+	 */
+	if (test_bit(RTL8152_INACCESSIBLE, &tp->flags))
+		pm_wakeup_event(&tp->udev->dev, 0);
+
 	return 0;
 }
 
diff --git a/drivers/net/usb/smsc75xx.c b/drivers/net/usb/smsc75xx.c
index 0726e18bee6f..78c821349f48 100644
--- a/drivers/net/usb/smsc75xx.c
+++ b/drivers/net/usb/smsc75xx.c
@@ -61,11 +61,6 @@ struct smsc75xx_priv {
 	u8 suspend_flags;
 };
 
-struct usb_context {
-	struct usb_ctrlrequest req;
-	struct usbnet *dev;
-};
-
 static bool turbo_mode = true;
 module_param(turbo_mode, bool, 0644);
 MODULE_PARM_DESC(turbo_mode, "Enable multiple frames per Rx transaction");