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

Pull networking updates from David Miller:
 "Highlights:

   1) Maintain the TCP retransmit queue using an rbtree, with 1GB
      windows at 100Gb this really has become necessary. From Eric
      Dumazet.

   2) Multi-program support for cgroup+bpf, from Alexei Starovoitov.

   3) Perform broadcast flooding in hardware in mv88e6xxx, from Andrew
      Lunn.

   4) Add meter action support to openvswitch, from Andy Zhou.

   5) Add a data meta pointer for BPF accessible packets, from Daniel
      Borkmann.

   6) Namespace-ify almost all TCP sysctl knobs, from Eric Dumazet.

   7) Turn on Broadcom Tags in b53 driver, from Florian Fainelli.

   8) More work to move the RTNL mutex down, from Florian Westphal.

   9) Add 'bpftool' utility, to help with bpf program introspection.
      From Jakub Kicinski.

  10) Add new 'cpumap' type for XDP_REDIRECT action, from Jesper
      Dangaard Brouer.

  11) Support 'blocks' of transformations in the packet scheduler which
      can span multiple network devices, from Jiri Pirko.

  12) TC flower offload support in cxgb4, from Kumar Sanghvi.

  13) Priority based stream scheduler for SCTP, from Marcelo Ricardo
      Leitner.

  14) Thunderbolt networking driver, from Amir Levy and Mika Westerberg.

  15) Add RED qdisc offloadability, and use it in mlxsw driver. From
      Nogah Frankel.

  16) eBPF based device controller for cgroup v2, from Roman Gushchin.

  17) Add some fundamental tracepoints for TCP, from Song Liu.

  18) Remove garbage collection from ipv6 route layer, this is a
      significant accomplishment. From Wei Wang.

  19) Add multicast route offload support to mlxsw, from Yotam Gigi"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (2177 commits)
  tcp: highest_sack fix
  geneve: fix fill_info when link down
  bpf: fix lockdep splat
  net: cdc_ncm: GetNtbFormat endian fix
  openvswitch: meter: fix NULL pointer dereference in ovs_meter_cmd_reply_start
  netem: remove unnecessary 64 bit modulus
  netem: use 64 bit divide by rate
  tcp: Namespace-ify sysctl_tcp_default_congestion_control
  net: Protect iterations over net::fib_notifier_ops in fib_seq_sum()
  ipv6: set all.accept_dad to 0 by default
  uapi: fix linux/tls.h userspace compilation error
  usbnet: ipheth: prevent TX queue timeouts when device not ready
  vhost_net: conditionally enable tx polling
  uapi: fix linux/rxrpc.h userspace compilation errors
  net: stmmac: fix LPI transitioning for dwmac4
  atm: horizon: Fix irq release error
  net-sysfs: trigger netlink notification on ifalias change via sysfs
  openvswitch: Using kfree_rcu() to simplify the code
  openvswitch: Make local function ovs_nsh_key_attr_size() static
  openvswitch: Fix return value check in ovs_meter_cmd_features()
  ...

9 files changed, 40 insertions, 42 deletions

diff --git a/drivers/net/usb/asix_common.c b/drivers/net/usb/asix_common.c
index 522d2900cd1d..f4d7362eb325 100644
--- a/drivers/net/usb/asix_common.c
+++ b/drivers/net/usb/asix_common.c
@@ -245,7 +245,7 @@ struct sk_buff *asix_tx_fixup(struct usbnet *dev, struct sk_buff *skb,
 	 * - We are allowed to put 4 bytes at tail if skb_cloned()
 	 *   is false (and if we have 4 bytes of tailroom)
 	 *
-	 * TCP packets for example are cloned, but skb_header_release()
+	 * TCP packets for example are cloned, but __skb_header_release()
 	 * was called in tcp stack, allowing us to use headroom for our needs.
 	 */
 	if (!skb_header_cloned(skb) &&
diff --git a/drivers/net/usb/catc.c b/drivers/net/usb/catc.c
index dbc90313f472..18d36dff97ea 100644
--- a/drivers/net/usb/catc.c
+++ b/drivers/net/usb/catc.c
@@ -611,9 +611,9 @@ static void catc_stats_done(struct catc *catc, struct ctrl_queue *q)
 	catc->stats_vals[index >> 1] = data;
 }
 
-static void catc_stats_timer(unsigned long data)
+static void catc_stats_timer(struct timer_list *t)
 {
-	struct catc *catc = (void *) data;
+	struct catc *catc = from_timer(catc, t, timer);
 	int i;
 
 	for (i = 0; i < 8; i++)
@@ -805,9 +805,7 @@ static int catc_probe(struct usb_interface *intf, const struct usb_device_id *id
 	spin_lock_init(&catc->tx_lock);
 	spin_lock_init(&catc->ctrl_lock);
 
-	init_timer(&catc->timer);
-	catc->timer.data = (long) catc;
-	catc->timer.function = catc_stats_timer;
+	timer_setup(&catc->timer, catc_stats_timer, 0);
 
 	catc->ctrl_urb = usb_alloc_urb(0, GFP_KERNEL);
 	catc->tx_urb = usb_alloc_urb(0, GFP_KERNEL);
diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c
index 47cab1bde065..9e1b74590682 100644
--- a/drivers/net/usb/cdc_ncm.c
+++ b/drivers/net/usb/cdc_ncm.c
@@ -771,7 +771,7 @@ int cdc_ncm_bind_common(struct usbnet *dev, struct usb_interface *intf, u8 data_
 	int err;
 	u8 iface_no;
 	struct usb_cdc_parsed_header hdr;
-	u16 curr_ntb_format;
+	__le16 curr_ntb_format;
 
 	ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
 	if (!ctx)
@@ -889,7 +889,7 @@ int cdc_ncm_bind_common(struct usbnet *dev, struct usb_interface *intf, u8 data_
 			goto error2;
 		}
 
-		if (curr_ntb_format == USB_CDC_NCM_NTB32_FORMAT) {
+		if (curr_ntb_format == cpu_to_le16(USB_CDC_NCM_NTB32_FORMAT)) {
 			dev_info(&intf->dev, "resetting NTB format to 16-bit");
 			err = usbnet_write_cmd(dev, USB_CDC_SET_NTB_FORMAT,
 					       USB_TYPE_CLASS | USB_DIR_OUT
diff --git a/drivers/net/usb/hso.c b/drivers/net/usb/hso.c
index d7a3379ea668..42d7edcc3106 100644
--- a/drivers/net/usb/hso.c
+++ b/drivers/net/usb/hso.c
@@ -2263,7 +2263,6 @@ static void hso_serial_common_free(struct hso_serial *serial)
 static int hso_serial_common_create(struct hso_serial *serial, int num_urbs,
 				    int rx_size, int tx_size)
 {
-	struct device *dev;
 	int minor;
 	int i;
 
@@ -2277,7 +2276,6 @@ static int hso_serial_common_create(struct hso_serial *serial, int num_urbs,
 	serial->parent->dev = tty_port_register_device_attr(&serial->port,
 			tty_drv, minor, &serial->parent->interface->dev,
 			serial->parent, hso_serial_dev_groups);
-	dev = serial->parent->dev;
 
 	/* fill in specific data for later use */
 	serial->minor = minor;
diff --git a/drivers/net/usb/ipheth.c b/drivers/net/usb/ipheth.c
index d49c7103085e..ca71f6c03859 100644
--- a/drivers/net/usb/ipheth.c
+++ b/drivers/net/usb/ipheth.c
@@ -149,6 +149,7 @@ struct ipheth_device {
 	u8 bulk_in;
 	u8 bulk_out;
 	struct delayed_work carrier_work;
+	bool confirmed_pairing;
 };
 
 static int ipheth_rx_submit(struct ipheth_device *dev, gfp_t mem_flags);
@@ -259,7 +260,7 @@ static void ipheth_rcvbulk_callback(struct urb *urb)
 
 	dev->net->stats.rx_packets++;
 	dev->net->stats.rx_bytes += len;
-
+	dev->confirmed_pairing = true;
 	netif_rx(skb);
 	ipheth_rx_submit(dev, GFP_ATOMIC);
 }
@@ -281,14 +282,21 @@ static void ipheth_sndbulk_callback(struct urb *urb)
 		__func__, status);
 
 	dev_kfree_skb_irq(dev->tx_skb);
-	netif_wake_queue(dev->net);
+	if (status == 0)
+		netif_wake_queue(dev->net);
+	else
+		// on URB error, trigger immediate poll
+		schedule_delayed_work(&dev->carrier_work, 0);
 }
 
 static int ipheth_carrier_set(struct ipheth_device *dev)
 {
 	struct usb_device *udev = dev->udev;
 	int retval;
-
+	if (!dev)
+		return 0;
+	if (!dev->confirmed_pairing)
+		return 0;
 	retval = usb_control_msg(udev,
 			usb_rcvctrlpipe(udev, IPHETH_CTRL_ENDP),
 			IPHETH_CMD_CARRIER_CHECK, /* request */
@@ -303,11 +311,14 @@ static int ipheth_carrier_set(struct ipheth_device *dev)
 		return retval;
 	}
 
-	if (dev->ctrl_buf[0] == IPHETH_CARRIER_ON)
+	if (dev->ctrl_buf[0] == IPHETH_CARRIER_ON) {
 		netif_carrier_on(dev->net);
-	else
+		if (dev->tx_urb->status != -EINPROGRESS)
+			netif_wake_queue(dev->net);
+	} else {
 		netif_carrier_off(dev->net);
-
+		netif_stop_queue(dev->net);
+	}
 	return 0;
 }
 
@@ -387,7 +398,6 @@ static int ipheth_open(struct net_device *net)
 		return retval;
 
 	schedule_delayed_work(&dev->carrier_work, IPHETH_CARRIER_CHECK_TIMEOUT);
-	netif_start_queue(net);
 	return retval;
 }
 
@@ -491,7 +501,7 @@ static int ipheth_probe(struct usb_interface *intf,
 	dev->udev = udev;
 	dev->net = netdev;
 	dev->intf = intf;
-
+	dev->confirmed_pairing = false;
 	/* Set up endpoints */
 	hintf = usb_altnum_to_altsetting(intf, IPHETH_ALT_INTFNUM);
 	if (hintf == NULL) {
@@ -542,7 +552,9 @@ static int ipheth_probe(struct usb_interface *intf,
 		retval = -EIO;
 		goto err_register_netdev;
 	}
-
+	// carrier down and transmit queues stopped until packet from device
+	netif_carrier_off(netdev);
+	netif_tx_stop_all_queues(netdev);
 	dev_info(&intf->dev, "Apple iPhone USB Ethernet device attached\n");
 	return 0;
 
diff --git a/drivers/net/usb/lan78xx.c b/drivers/net/usb/lan78xx.c
index 0161f77641fa..94c7804903c4 100644
--- a/drivers/net/usb/lan78xx.c
+++ b/drivers/net/usb/lan78xx.c
@@ -3516,11 +3516,9 @@ static const struct net_device_ops lan78xx_netdev_ops = {
 	.ndo_vlan_rx_kill_vid	= lan78xx_vlan_rx_kill_vid,
 };
 
-static void lan78xx_stat_monitor(unsigned long param)
+static void lan78xx_stat_monitor(struct timer_list *t)
 {
-	struct lan78xx_net *dev;
-
-	dev = (struct lan78xx_net *)param;
+	struct lan78xx_net *dev = from_timer(dev, t, stat_monitor);
 
 	lan78xx_defer_kevent(dev, EVENT_STAT_UPDATE);
 }
@@ -3571,10 +3569,8 @@ static int lan78xx_probe(struct usb_interface *intf,
 	netdev->watchdog_timeo = TX_TIMEOUT_JIFFIES;
 	netdev->ethtool_ops = &lan78xx_ethtool_ops;
 
-	dev->stat_monitor.function = lan78xx_stat_monitor;
-	dev->stat_monitor.data = (unsigned long)dev;
 	dev->delta = 1;
-	init_timer(&dev->stat_monitor);
+	timer_setup(&dev->stat_monitor, lan78xx_stat_monitor, 0);
 
 	mutex_init(&dev->stats.access_lock);
 
diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c
index 8d4a6f7cba61..720a3a248070 100644
--- a/drivers/net/usb/qmi_wwan.c
+++ b/drivers/net/usb/qmi_wwan.c
@@ -221,7 +221,7 @@ static int qmimux_register_device(struct net_device *real_dev, u8 mux_id)
 	/* Account for reference in struct qmimux_priv_priv */
 	dev_hold(real_dev);
 
-	err = netdev_upper_dev_link(real_dev, new_dev);
+	err = netdev_upper_dev_link(real_dev, new_dev, NULL);
 	if (err)
 		goto out_unregister_netdev;
 
diff --git a/drivers/net/usb/sierra_net.c b/drivers/net/usb/sierra_net.c
index 2110ab3513f0..c43087e06696 100644
--- a/drivers/net/usb/sierra_net.c
+++ b/drivers/net/usb/sierra_net.c
@@ -189,9 +189,6 @@ struct lsi_umts_dual {
 #define SIERRA_NET_LSI_UMTS_DS_STATUS_LEN \
 	(SIERRA_NET_LSI_UMTS_DS_LEN - SIERRA_NET_LSI_COMMON_LEN)
 
-/* Forward definitions */
-static void sierra_sync_timer(unsigned long syncdata);
-
 /* Our own net device operations structure */
 static const struct net_device_ops sierra_net_device_ops = {
 	.ndo_open               = usbnet_open,
@@ -475,8 +472,6 @@ static void sierra_net_dosync(struct usbnet *dev)
 			"Send SYNC failed, status %d\n", status);
 
 	/* Now, start a timer and make sure we get the Restart Indication */
-	priv->sync_timer.function = sierra_sync_timer;
-	priv->sync_timer.data = (unsigned long) dev;
 	priv->sync_timer.expires = jiffies + SIERRA_NET_SYNCDELAY;
 	add_timer(&priv->sync_timer);
 }
@@ -593,9 +588,10 @@ static void sierra_net_defer_kevent(struct usbnet *dev, int work)
 /*
  * Sync Retransmit Timer Handler. On expiry, kick the work queue
  */
-static void sierra_sync_timer(unsigned long syncdata)
+static void sierra_sync_timer(struct timer_list *t)
 {
-	struct usbnet *dev = (struct usbnet *)syncdata;
+	struct sierra_net_data *priv = from_timer(priv, t, sync_timer);
+	struct usbnet *dev = priv->usbnet;
 
 	dev_dbg(&dev->udev->dev, "%s", __func__);
 	/* Kick the tasklet */
@@ -752,7 +748,7 @@ static int sierra_net_bind(struct usbnet *dev, struct usb_interface *intf)
 	INIT_WORK(&priv->sierra_net_kevent, sierra_net_kevent);
 
 	/* Only need to do this once */
-	init_timer(&priv->sync_timer);
+	timer_setup(&priv->sync_timer, sierra_sync_timer, 0);
 
 	/* verify fw attributes */
 	status = sierra_net_get_fw_attr(dev, &fwattr);
diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c
index 6510e5cc1817..80348b6a8646 100644
--- a/drivers/net/usb/usbnet.c
+++ b/drivers/net/usb/usbnet.c
@@ -1509,9 +1509,9 @@ err:
 
 // tasklet (work deferred from completions, in_irq) or timer
 
-static void usbnet_bh (unsigned long param)
+static void usbnet_bh (struct timer_list *t)
 {
-	struct usbnet		*dev = (struct usbnet *) param;
+	struct usbnet		*dev = from_timer(dev, t, delay);
 	struct sk_buff		*skb;
 	struct skb_data		*entry;
 
@@ -1694,13 +1694,11 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod)
 	skb_queue_head_init (&dev->txq);
 	skb_queue_head_init (&dev->done);
 	skb_queue_head_init(&dev->rxq_pause);
-	dev->bh.func = usbnet_bh;
-	dev->bh.data = (unsigned long) dev;
+	dev->bh.func = (void (*)(unsigned long))usbnet_bh;
+	dev->bh.data = (unsigned long)&dev->delay;
 	INIT_WORK (&dev->kevent, usbnet_deferred_kevent);
 	init_usb_anchor(&dev->deferred);
-	dev->delay.function = usbnet_bh;
-	dev->delay.data = (unsigned long) dev;
-	init_timer (&dev->delay);
+	timer_setup(&dev->delay, usbnet_bh, 0);
 	mutex_init (&dev->phy_mutex);
 	mutex_init(&dev->interrupt_mutex);
 	dev->interrupt_count = 0;