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

Pull networking fixes from David Miller:

 1) Fix packet header offset calculation in _decode_session6(), from
    Hajime Tazaki.

 2) Fix route leak in error paths of xfrm_lookup(), from Huaibin Wang.

 3) Be sure to clear state properly when scans fail in iwlwifi mvm code,
    from Luciano Coelho.

 4) iwlwifi tries to stop scans that aren't actually running, also from
    Luciano Coelho.

 5) mac80211 should drop mesh frames that are not encrypted, fix from
    Bob Copeland.

 6) Add new device ID to b43 wireless driver for BCM432228 chips, from
    Rafał Miłecki.

 7) Fix accidental addition of members after variable sized array in
    struct tc_u_hnode, from WANG Cong.

 8) Don't re-enable interrupts until after we call napi_complete() in
    ibmveth and WIZnet drivers, frm Yongbae Park.

 9) Fix regression in vlan tag handling of fec driver, from Fugang Duan.

10) If a network namespace change fails during rtnl_newlink(), we don't
    unwind the device registry properly.

11) Fix two TCP regressions, from Neal Cardwell:
  - Don't allow snd_cwnd_cnt to accumulate huge values due to missing
    test in tcp_cong_avoid_ai().
  - Restore CUBIC back to advancing cwnd by 1.5x packets per RTT.

12) Fix performance regression in xne-netback involving push TX
    notifications, from David Vrabel.

13) __skb_tstamp_tx() can be called with a NULL sk pointer, do not
    dereference blindly.  From Willem de Bruijn.

14) Fix potential stack overflow in RDS protocol stack, from Arnd
    Bergmann.

15) VXLAN_VID_MASK used incorrectly in new remote checksum offload
    support of VXLAN driver.  Fix from Alexey Kodanev.

16) Fix too small netlink SKB allocation in inet_diag layer, from Eric
    Dumazet.

17) ieee80211_check_combinations() does not count interfaces correctly,
    from Andrei Otcheretianski.

18) Hardware feature determination in bxn2x driver references a piece of
    software state that actually isn't initialized yet, fix from Michal
    Schmidt.

19) inet_csk_wait_for_connect() needs a sched_annotate_sleep()
    annoation, from Eric Dumazet.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (56 commits)
  Revert "net: cx82310_eth: use common match macro"
  net/mlx4_en: Set statistics bitmap at port init
  IB/mlx4: Saturate RoCE port PMA counters in case of overflow
  net/mlx4_en: Fix off-by-one in ethtool statistics display
  IB/mlx4: Verify net device validity on port change event
  act_bpf: allow non-default TC_ACT opcodes as BPF exec outcome
  Revert "smc91x: retrieve IRQ and trigger flags in a modern way"
  inet: Clean up inet_csk_wait_for_connect() vs. might_sleep()
  ip6_tunnel: fix error code when tunnel exists
  netdevice.h: fix ndo_bridge_* comments
  bnx2x: fix encapsulation features on 57710/57711
  mac80211: ignore CSA to same channel
  nl80211: ignore HT/VHT capabilities without QoS/WMM
  mac80211: ask for ECSA IE to be considered for beacon parse CRC
  mac80211: count interfaces correctly for combination checks
  isdn: icn: use strlcpy() when parsing setup options
  rxrpc: bogus MSG_PEEK test in rxrpc_recvmsg()
  caif: fix MSG_OOB test in caif_seqpkt_recvmsg()
  bridge: reset bridge mtu after deleting an interface
  can: kvaser_usb: Fix tx queue start/stop race conditions
  ...

32 files changed, 241 insertions, 149 deletions

diff --git a/drivers/infiniband/hw/mlx4/mad.c b/drivers/infiniband/hw/mlx4/mad.c
index c7619716c31d..59040265e361 100644
--- a/drivers/infiniband/hw/mlx4/mad.c
+++ b/drivers/infiniband/hw/mlx4/mad.c
@@ -64,6 +64,14 @@ enum {
 #define GUID_TBL_BLK_NUM_ENTRIES 8
 #define GUID_TBL_BLK_SIZE (GUID_TBL_ENTRY_SIZE * GUID_TBL_BLK_NUM_ENTRIES)
 
+/* Counters should be saturate once they reach their maximum value */
+#define ASSIGN_32BIT_COUNTER(counter, value) do {\
+	if ((value) > U32_MAX)			 \
+		counter = cpu_to_be32(U32_MAX); \
+	else					 \
+		counter = cpu_to_be32(value);	 \
+} while (0)
+
 struct mlx4_mad_rcv_buf {
 	struct ib_grh grh;
 	u8 payload[256];
@@ -806,10 +814,14 @@ static int ib_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num,
 static void edit_counter(struct mlx4_counter *cnt,
 					struct ib_pma_portcounters *pma_cnt)
 {
-	pma_cnt->port_xmit_data = cpu_to_be32((be64_to_cpu(cnt->tx_bytes)>>2));
-	pma_cnt->port_rcv_data  = cpu_to_be32((be64_to_cpu(cnt->rx_bytes)>>2));
-	pma_cnt->port_xmit_packets = cpu_to_be32(be64_to_cpu(cnt->tx_frames));
-	pma_cnt->port_rcv_packets  = cpu_to_be32(be64_to_cpu(cnt->rx_frames));
+	ASSIGN_32BIT_COUNTER(pma_cnt->port_xmit_data,
+			     (be64_to_cpu(cnt->tx_bytes) >> 2));
+	ASSIGN_32BIT_COUNTER(pma_cnt->port_rcv_data,
+			     (be64_to_cpu(cnt->rx_bytes) >> 2));
+	ASSIGN_32BIT_COUNTER(pma_cnt->port_xmit_packets,
+			     be64_to_cpu(cnt->tx_frames));
+	ASSIGN_32BIT_COUNTER(pma_cnt->port_rcv_packets,
+			     be64_to_cpu(cnt->rx_frames));
 }
 
 static int iboe_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num,
diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c
index ac6e2b710ea6..b972c0b41799 100644
--- a/drivers/infiniband/hw/mlx4/main.c
+++ b/drivers/infiniband/hw/mlx4/main.c
@@ -2697,8 +2697,12 @@ static void handle_bonded_port_state_event(struct work_struct *work)
 	spin_lock_bh(&ibdev->iboe.lock);
 	for (i = 0; i < MLX4_MAX_PORTS; ++i) {
 		struct net_device *curr_netdev = ibdev->iboe.netdevs[i];
+		enum ib_port_state curr_port_state;
 
-		enum ib_port_state curr_port_state =
+		if (!curr_netdev)
+			continue;
+
+		curr_port_state =
 			(netif_running(curr_netdev) &&
 			 netif_carrier_ok(curr_netdev)) ?
 			IB_PORT_ACTIVE : IB_PORT_DOWN;
diff --git a/drivers/isdn/icn/icn.c b/drivers/isdn/icn/icn.c
index 6a7447c304ac..358a574d9e8b 100644
--- a/drivers/isdn/icn/icn.c
+++ b/drivers/isdn/icn/icn.c
@@ -1609,7 +1609,7 @@ icn_setup(char *line)
 	if (ints[0] > 1)
 		membase = (unsigned long)ints[2];
 	if (str && *str) {
-		strcpy(sid, str);
+		strlcpy(sid, str, sizeof(sid));
 		icn_id = sid;
 		if ((p = strchr(sid, ','))) {
 			*p++ = 0;
diff --git a/drivers/net/can/Kconfig b/drivers/net/can/Kconfig
index 98d73aab52fe..58808f651452 100644
--- a/drivers/net/can/Kconfig
+++ b/drivers/net/can/Kconfig
@@ -131,7 +131,7 @@ config CAN_RCAR
 
 config CAN_XILINXCAN
 	tristate "Xilinx CAN"
-	depends on ARCH_ZYNQ || MICROBLAZE || COMPILE_TEST
+	depends on ARCH_ZYNQ || ARM64 || MICROBLAZE || COMPILE_TEST
 	depends on COMMON_CLK && HAS_IOMEM
 	---help---
 	  Xilinx CAN driver. This driver supports both soft AXI CAN IP and
diff --git a/drivers/net/can/usb/kvaser_usb.c b/drivers/net/can/usb/kvaser_usb.c
index a316fa4b91ab..e97a08ce0b90 100644
--- a/drivers/net/can/usb/kvaser_usb.c
+++ b/drivers/net/can/usb/kvaser_usb.c
@@ -14,6 +14,7 @@
  * Copyright (C) 2015 Valeo S.A.
  */
 
+#include <linux/spinlock.h>
 #include <linux/kernel.h>
 #include <linux/completion.h>
 #include <linux/module.h>
@@ -467,10 +468,11 @@ struct kvaser_usb {
 struct kvaser_usb_net_priv {
 	struct can_priv can;
 
-	atomic_t active_tx_urbs;
-	struct usb_anchor tx_submitted;
+	spinlock_t tx_contexts_lock;
+	int active_tx_contexts;
 	struct kvaser_usb_tx_urb_context tx_contexts[MAX_TX_URBS];
 
+	struct usb_anchor tx_submitted;
 	struct completion start_comp, stop_comp;
 
 	struct kvaser_usb *dev;
@@ -694,6 +696,7 @@ static void kvaser_usb_tx_acknowledge(const struct kvaser_usb *dev,
 	struct kvaser_usb_net_priv *priv;
 	struct sk_buff *skb;
 	struct can_frame *cf;
+	unsigned long flags;
 	u8 channel, tid;
 
 	channel = msg->u.tx_acknowledge_header.channel;
@@ -737,12 +740,15 @@ static void kvaser_usb_tx_acknowledge(const struct kvaser_usb *dev,
 
 	stats->tx_packets++;
 	stats->tx_bytes += context->dlc;
-	can_get_echo_skb(priv->netdev, context->echo_index);
 
-	context->echo_index = MAX_TX_URBS;
-	atomic_dec(&priv->active_tx_urbs);
+	spin_lock_irqsave(&priv->tx_contexts_lock, flags);
 
+	can_get_echo_skb(priv->netdev, context->echo_index);
+	context->echo_index = MAX_TX_URBS;
+	--priv->active_tx_contexts;
 	netif_wake_queue(priv->netdev);
+
+	spin_unlock_irqrestore(&priv->tx_contexts_lock, flags);
 }
 
 static void kvaser_usb_simple_msg_callback(struct urb *urb)
@@ -803,17 +809,6 @@ static int kvaser_usb_simple_msg_async(struct kvaser_usb_net_priv *priv,
 	return 0;
 }
 
-static void kvaser_usb_unlink_tx_urbs(struct kvaser_usb_net_priv *priv)
-{
-	int i;
-
-	usb_kill_anchored_urbs(&priv->tx_submitted);
-	atomic_set(&priv->active_tx_urbs, 0);
-
-	for (i = 0; i < MAX_TX_URBS; i++)
-		priv->tx_contexts[i].echo_index = MAX_TX_URBS;
-}
-
 static void kvaser_usb_rx_error_update_can_state(struct kvaser_usb_net_priv *priv,
 						 const struct kvaser_usb_error_summary *es,
 						 struct can_frame *cf)
@@ -1515,6 +1510,24 @@ error:
 	return err;
 }
 
+static void kvaser_usb_reset_tx_urb_contexts(struct kvaser_usb_net_priv *priv)
+{
+	int i;
+
+	priv->active_tx_contexts = 0;
+	for (i = 0; i < MAX_TX_URBS; i++)
+		priv->tx_contexts[i].echo_index = MAX_TX_URBS;
+}
+
+/* This method might sleep. Do not call it in the atomic context
+ * of URB completions.
+ */
+static void kvaser_usb_unlink_tx_urbs(struct kvaser_usb_net_priv *priv)
+{
+	usb_kill_anchored_urbs(&priv->tx_submitted);
+	kvaser_usb_reset_tx_urb_contexts(priv);
+}
+
 static void kvaser_usb_unlink_all_urbs(struct kvaser_usb *dev)
 {
 	int i;
@@ -1634,6 +1647,7 @@ static netdev_tx_t kvaser_usb_start_xmit(struct sk_buff *skb,
 	struct kvaser_msg *msg;
 	int i, err, ret = NETDEV_TX_OK;
 	u8 *msg_tx_can_flags = NULL;		/* GCC */
+	unsigned long flags;
 
 	if (can_dropped_invalid_skb(netdev, skb))
 		return NETDEV_TX_OK;
@@ -1687,12 +1701,21 @@ static netdev_tx_t kvaser_usb_start_xmit(struct sk_buff *skb,
 	if (cf->can_id & CAN_RTR_FLAG)
 		*msg_tx_can_flags |= MSG_FLAG_REMOTE_FRAME;
 
+	spin_lock_irqsave(&priv->tx_contexts_lock, flags);
 	for (i = 0; i < ARRAY_SIZE(priv->tx_contexts); i++) {
 		if (priv->tx_contexts[i].echo_index == MAX_TX_URBS) {
 			context = &priv->tx_contexts[i];
+
+			context->echo_index = i;
+			can_put_echo_skb(skb, netdev, context->echo_index);
+			++priv->active_tx_contexts;
+			if (priv->active_tx_contexts >= MAX_TX_URBS)
+				netif_stop_queue(netdev);
+
 			break;
 		}
 	}
+	spin_unlock_irqrestore(&priv->tx_contexts_lock, flags);
 
 	/* This should never happen; it implies a flow control bug */
 	if (!context) {
@@ -1704,7 +1727,6 @@ static netdev_tx_t kvaser_usb_start_xmit(struct sk_buff *skb,
 	}
 
 	context->priv = priv;
-	context->echo_index = i;
 	context->dlc = cf->can_dlc;
 
 	msg->u.tx_can.tid = context->echo_index;
@@ -1716,18 +1738,17 @@ static netdev_tx_t kvaser_usb_start_xmit(struct sk_buff *skb,
 			  kvaser_usb_write_bulk_callback, context);
 	usb_anchor_urb(urb, &priv->tx_submitted);
 
-	can_put_echo_skb(skb, netdev, context->echo_index);
-
-	atomic_inc(&priv->active_tx_urbs);
-
-	if (atomic_read(&priv->active_tx_urbs) >= MAX_TX_URBS)
-		netif_stop_queue(netdev);
-
 	err = usb_submit_urb(urb, GFP_ATOMIC);
 	if (unlikely(err)) {
+		spin_lock_irqsave(&priv->tx_contexts_lock, flags);
+
 		can_free_echo_skb(netdev, context->echo_index);
+		context->echo_index = MAX_TX_URBS;
+		--priv->active_tx_contexts;
+		netif_wake_queue(netdev);
+
+		spin_unlock_irqrestore(&priv->tx_contexts_lock, flags);
 
-		atomic_dec(&priv->active_tx_urbs);
 		usb_unanchor_urb(urb);
 
 		stats->tx_dropped++;
@@ -1854,7 +1875,7 @@ static int kvaser_usb_init_one(struct usb_interface *intf,
 	struct kvaser_usb *dev = usb_get_intfdata(intf);
 	struct net_device *netdev;
 	struct kvaser_usb_net_priv *priv;
-	int i, err;
+	int err;
 
 	err = kvaser_usb_send_simple_msg(dev, CMD_RESET_CHIP, channel);
 	if (err)
@@ -1868,19 +1889,17 @@ static int kvaser_usb_init_one(struct usb_interface *intf,
 
 	priv = netdev_priv(netdev);
 
+	init_usb_anchor(&priv->tx_submitted);
 	init_completion(&priv->start_comp);
 	init_completion(&priv->stop_comp);
 
-	init_usb_anchor(&priv->tx_submitted);
-	atomic_set(&priv->active_tx_urbs, 0);
-
-	for (i = 0; i < ARRAY_SIZE(priv->tx_contexts); i++)
-		priv->tx_contexts[i].echo_index = MAX_TX_URBS;
-
 	priv->dev = dev;
 	priv->netdev = netdev;
 	priv->channel = channel;
 
+	spin_lock_init(&priv->tx_contexts_lock);
+	kvaser_usb_reset_tx_urb_contexts(priv);
+
 	priv->can.state = CAN_STATE_STOPPED;
 	priv->can.clock.freq = CAN_USB_CLOCK;
 	priv->can.bittiming_const = &kvaser_usb_bittiming_const;
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index bef750a09027..996e215fc324 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -12769,7 +12769,7 @@ static int bnx2x_init_dev(struct bnx2x *bp, struct pci_dev *pdev,
 		NETIF_F_TSO | NETIF_F_TSO_ECN | NETIF_F_TSO6 |
 		NETIF_F_RXCSUM | NETIF_F_LRO | NETIF_F_GRO |
 		NETIF_F_RXHASH | NETIF_F_HW_VLAN_CTAG_TX;
-	if (!CHIP_IS_E1x(bp)) {
+	if (!chip_is_e1x) {
 		dev->hw_features |= NETIF_F_GSO_GRE | NETIF_F_GSO_UDP_TUNNEL |
 				    NETIF_F_GSO_IPIP | NETIF_F_GSO_SIT;
 		dev->hw_enc_features =
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
index 853c38997c82..1abdfa123c6c 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
@@ -1120,7 +1120,7 @@ int t4_prep_fw(struct adapter *adap, struct fw_info *fw_info,
 		}
 
 		/* Installed successfully, update the cached header too. */
-		memcpy(card_fw, fs_fw, sizeof(*card_fw));
+		*card_fw = *fs_fw;
 		card_fw_usable = 1;
 		*reset = 0;	/* already reset as part of load_fw */
 	}
diff --git a/drivers/net/ethernet/dec/tulip/tulip_core.c b/drivers/net/ethernet/dec/tulip/tulip_core.c
index 3b42556f7f8d..ed41559bae77 100644
--- a/drivers/net/ethernet/dec/tulip/tulip_core.c
+++ b/drivers/net/ethernet/dec/tulip/tulip_core.c
@@ -589,7 +589,7 @@ static void tulip_tx_timeout(struct net_device *dev)
 			       (unsigned int)tp->rx_ring[i].buffer1,
 			       (unsigned int)tp->rx_ring[i].buffer2,
 			       buf[0], buf[1], buf[2]);
-			for (j = 0; buf[j] != 0xee && j < 1600; j++)
+			for (j = 0; ((j < 1600) && buf[j] != 0xee); j++)
 				if (j < 100)
 					pr_cont(" %02x", buf[j]);
 			pr_cont(" j=%d\n", j);
diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
index 99492b7e3713..78e1ce09b1ab 100644
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c
@@ -1189,13 +1189,12 @@ static void
 fec_enet_tx_queue(struct net_device *ndev, u16 queue_id)
 {
 	struct	fec_enet_private *fep;
-	struct bufdesc *bdp, *bdp_t;
+	struct bufdesc *bdp;
 	unsigned short status;
 	struct	sk_buff	*skb;
 	struct fec_enet_priv_tx_q *txq;
 	struct netdev_queue *nq;
 	int	index = 0;
-	int	i, bdnum;
 	int	entries_free;
 
 	fep = netdev_priv(ndev);
@@ -1216,29 +1215,18 @@ fec_enet_tx_queue(struct net_device *ndev, u16 queue_id)
 		if (bdp == txq->cur_tx)
 			break;
 
-		bdp_t = bdp;
-		bdnum = 1;
-		index = fec_enet_get_bd_index(txq->tx_bd_base, bdp_t, fep);
-		skb = txq->tx_skbuff[index];
-		while (!skb) {
-			bdp_t = fec_enet_get_nextdesc(bdp_t, fep, queue_id);
-			index = fec_enet_get_bd_index(txq->tx_bd_base, bdp_t, fep);
-			skb = txq->tx_skbuff[index];
-			bdnum++;
-		}
-		if (skb_shinfo(skb)->nr_frags &&
-		    (status = bdp_t->cbd_sc) & BD_ENET_TX_READY)
-			break;
+		index = fec_enet_get_bd_index(txq->tx_bd_base, bdp, fep);
 
-		for (i = 0; i < bdnum; i++) {
-			if (!IS_TSO_HEADER(txq, bdp->cbd_bufaddr))
-				dma_unmap_single(&fep->pdev->dev, bdp->cbd_bufaddr,
-						 bdp->cbd_datlen, DMA_TO_DEVICE);
-			bdp->cbd_bufaddr = 0;
-			if (i < bdnum - 1)
-				bdp = fec_enet_get_nextdesc(bdp, fep, queue_id);
-		}
+		skb = txq->tx_skbuff[index];
 		txq->tx_skbuff[index] = NULL;
+		if (!IS_TSO_HEADER(txq, bdp->cbd_bufaddr))
+			dma_unmap_single(&fep->pdev->dev, bdp->cbd_bufaddr,
+					bdp->cbd_datlen, DMA_TO_DEVICE);
+		bdp->cbd_bufaddr = 0;
+		if (!skb) {
+			bdp = fec_enet_get_nextdesc(bdp, fep, queue_id);
+			continue;
+		}
 
 		/* Check for errors. */
 		if (status & (BD_ENET_TX_HB | BD_ENET_TX_LC |
@@ -1479,8 +1467,7 @@ fec_enet_rx_queue(struct net_device *ndev, int budget, u16 queue_id)
 
 			vlan_packet_rcvd = true;
 
-			skb_copy_to_linear_data_offset(skb, VLAN_HLEN,
-						       data, (2 * ETH_ALEN));
+			memmove(skb->data + VLAN_HLEN, data, ETH_ALEN * 2);
 			skb_pull(skb, VLAN_HLEN);
 		}
 
diff --git a/drivers/net/ethernet/ibm/ibmveth.c b/drivers/net/ethernet/ibm/ibmveth.c
index 072426a72745..cd7675ac5bf9 100644
--- a/drivers/net/ethernet/ibm/ibmveth.c
+++ b/drivers/net/ethernet/ibm/ibmveth.c
@@ -1136,6 +1136,8 @@ restart_poll:
 	ibmveth_replenish_task(adapter);
 
 	if (frames_processed < budget) {
+		napi_complete(napi);
+
 		/* We think we are done - reenable interrupts,
 		 * then check once more to make sure we are done.
 		 */
@@ -1144,8 +1146,6 @@ restart_poll:
 
 		BUG_ON(lpar_rc != H_SUCCESS);
 
-		napi_complete(napi);
-
 		if (ibmveth_rxq_pending_buffer(adapter) &&
 		    napi_reschedule(napi)) {
 			lpar_rc = h_vio_signal(adapter->vdev->unit_address,
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
index 2a210c4efb89..ebce5bb24df9 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
@@ -1698,8 +1698,6 @@ int mlx4_en_start_port(struct net_device *dev)
 	/* Schedule multicast task to populate multicast list */
 	queue_work(mdev->workqueue, &priv->rx_mode_task);
 
-	mlx4_set_stats_bitmap(mdev->dev, &priv->stats_bitmap);
-
 #ifdef CONFIG_MLX4_EN_VXLAN
 	if (priv->mdev->dev->caps.tunnel_offload_mode == MLX4_TUNNEL_OFFLOAD_MODE_VXLAN)
 		vxlan_get_rx_port(dev);
@@ -2853,6 +2851,8 @@ int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port,
 		queue_delayed_work(mdev->workqueue, &priv->service_task,
 				   SERVICE_TASK_DELAY);
 
+	mlx4_set_stats_bitmap(mdev->dev, &priv->stats_bitmap);
+
 	return 0;
 
 out:
diff --git a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
index 2a8268e6be15..ebbe244e80dd 100644
--- a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
+++ b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
@@ -453,7 +453,7 @@ struct mlx4_en_port_stats {
 	unsigned long rx_chksum_none;
 	unsigned long rx_chksum_complete;
 	unsigned long tx_chksum_offload;
-#define NUM_PORT_STATS		9
+#define NUM_PORT_STATS		10
 };
 
 struct mlx4_en_perf_stats {
diff --git a/drivers/net/ethernet/smsc/smc91x.c b/drivers/net/ethernet/smsc/smc91x.c
index 5d093dc0f5f5..8678e39aba08 100644
--- a/drivers/net/ethernet/smsc/smc91x.c
+++ b/drivers/net/ethernet/smsc/smc91x.c
@@ -2248,10 +2248,9 @@ static int smc_drv_probe(struct platform_device *pdev)
 	const struct of_device_id *match = NULL;
 	struct smc_local *lp;
 	struct net_device *ndev;
-	struct resource *res;
+	struct resource *res, *ires;
 	unsigned int __iomem *addr;
 	unsigned long irq_flags = SMC_IRQ_FLAGS;
-	unsigned long irq_resflags;
 	int ret;
 
 	ndev = alloc_etherdev(sizeof(struct smc_local));
@@ -2343,19 +2342,16 @@ static int smc_drv_probe(struct platform_device *pdev)
 		goto out_free_netdev;
 	}
 
-	ndev->irq = platform_get_irq(pdev, 0);
-	if (ndev->irq <= 0) {
+	ires = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+	if (!ires) {
 		ret = -ENODEV;
 		goto out_release_io;
 	}
-	/*
-	 * If this platform does not specify any special irqflags, or if
-	 * the resource supplies a trigger, override the irqflags with
-	 * the trigger flags from the resource.
-	 */
-	irq_resflags = irqd_get_trigger_type(irq_get_irq_data(ndev->irq));
-	if (irq_flags == -1 || irq_resflags & IRQF_TRIGGER_MASK)
-		irq_flags = irq_resflags & IRQF_TRIGGER_MASK;
+
+	ndev->irq = ires->start;
+
+	if (irq_flags == -1 || ires->flags & IRQF_TRIGGER_MASK)
+		irq_flags = ires->flags & IRQF_TRIGGER_MASK;
 
 	ret = smc_request_attrib(pdev, ndev);
 	if (ret)
diff --git a/drivers/net/ethernet/wiznet/w5100.c b/drivers/net/ethernet/wiznet/w5100.c
index a495931a66a1..0e0fbb5842b3 100644
--- a/drivers/net/ethernet/wiznet/w5100.c
+++ b/drivers/net/ethernet/wiznet/w5100.c
@@ -498,9 +498,9 @@ static int w5100_napi_poll(struct napi_struct *napi, int budget)
 	}
 
 	if (rx_count < budget) {
+		napi_complete(napi);
 		w5100_write(priv, W5100_IMR, IR_S0);
 		mmiowb();
-		napi_complete(napi);
 	}
 
 	return rx_count;
diff --git a/drivers/net/ethernet/wiznet/w5300.c b/drivers/net/ethernet/wiznet/w5300.c
index 09322d9db578..4b310002258d 100644
--- a/drivers/net/ethernet/wiznet/w5300.c
+++ b/drivers/net/ethernet/wiznet/w5300.c
@@ -418,9 +418,9 @@ static int w5300_napi_poll(struct napi_struct *napi, int budget)
 	}
 
 	if (rx_count < budget) {
+		napi_complete(napi);
 		w5300_write(priv, W5300_IMR, IR_S0);
 		mmiowb();
-		napi_complete(napi);
 	}
 
 	return rx_count;
diff --git a/drivers/net/usb/cx82310_eth.c b/drivers/net/usb/cx82310_eth.c
index 3eed708a6182..fe48f4c51373 100644
--- a/drivers/net/usb/cx82310_eth.c
+++ b/drivers/net/usb/cx82310_eth.c
@@ -300,9 +300,18 @@ static const struct driver_info	cx82310_info = {
 	.tx_fixup	= cx82310_tx_fixup,
 };
 
+#define USB_DEVICE_CLASS(vend, prod, cl, sc, pr) \
+	.match_flags = USB_DEVICE_ID_MATCH_DEVICE | \
+		       USB_DEVICE_ID_MATCH_DEV_INFO, \
+	.idVendor = (vend), \
+	.idProduct = (prod), \
+	.bDeviceClass = (cl), \
+	.bDeviceSubClass = (sc), \
+	.bDeviceProtocol = (pr)
+
 static const struct usb_device_id products[] = {
 	{
-		USB_DEVICE_AND_INTERFACE_INFO(0x0572, 0xcb01, 0xff, 0, 0),
+		USB_DEVICE_CLASS(0x0572, 0xcb01, 0xff, 0, 0),
 		.driver_info = (unsigned long) &cx82310_info
 	},
 	{ },
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index f1ff3666f090..59b0e9754ae3 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -1448,8 +1448,10 @@ static void virtnet_free_queues(struct virtnet_info *vi)
 {
 	int i;
 
-	for (i = 0; i < vi->max_queue_pairs; i++)
+	for (i = 0; i < vi->max_queue_pairs; i++) {
+		napi_hash_del(&vi->rq[i].napi);
 		netif_napi_del(&vi->rq[i].napi);
+	}
 
 	kfree(vi->rq);
 	kfree(vi->sq);
@@ -1948,11 +1950,8 @@ static int virtnet_freeze(struct virtio_device *vdev)
 	cancel_delayed_work_sync(&vi->refill);
 
 	if (netif_running(vi->dev)) {
-		for (i = 0; i < vi->max_queue_pairs; i++) {
+		for (i = 0; i < vi->max_queue_pairs; i++)
 			napi_disable(&vi->rq[i].napi);
-			napi_hash_del(&vi->rq[i].napi);
-			netif_napi_del(&vi->rq[i].napi);
-		}
 	}
 
 	remove_vq_common(vi);
diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index 1e0a775ea882..f8528a4cf54f 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -1218,7 +1218,7 @@ static int vxlan_udp_encap_recv(struct sock *sk, struct sk_buff *skb)
 			goto drop;
 
 		flags &= ~VXLAN_HF_RCO;
-		vni &= VXLAN_VID_MASK;
+		vni &= VXLAN_VNI_MASK;
 	}
 
 	/* For backwards compatibility, only allow reserved fields to be
@@ -1239,7 +1239,7 @@ static int vxlan_udp_encap_recv(struct sock *sk, struct sk_buff *skb)
 		flags &= ~VXLAN_GBP_USED_BITS;
 	}
 
-	if (flags || (vni & ~VXLAN_VID_MASK)) {
+	if (flags || vni & ~VXLAN_VNI_MASK) {
 		/* If there are any unprocessed flags remaining treat
 		 * this as a malformed packet. This behavior diverges from
 		 * VXLAN RFC (RFC7348) which stipulates that bits in reserved
diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c
index ccbdb05b28cd..75345c1e8c34 100644
--- a/drivers/net/wireless/b43/main.c
+++ b/drivers/net/wireless/b43/main.c
@@ -5370,6 +5370,7 @@ static void b43_supported_bands(struct b43_wldev *dev, bool *have_2ghz_phy,
 	case 0x432a: /* BCM4321 */
 	case 0x432d: /* BCM4322 */
 	case 0x4352: /* BCM43222 */
+	case 0x435a: /* BCM43228 */
 	case 0x4333: /* BCM4331 */
 	case 0x43a2: /* BCM4360 */
 	case 0x43b3: /* BCM4352 */
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/vendor.c b/drivers/net/wireless/brcm80211/brcmfmac/vendor.c
index 50cdf7090198..8eff2753abad 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/vendor.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/vendor.c
@@ -39,13 +39,22 @@ static int brcmf_cfg80211_vndr_cmds_dcmd_handler(struct wiphy *wiphy,
 	void *dcmd_buf = NULL, *wr_pointer;
 	u16 msglen, maxmsglen = PAGE_SIZE - 0x100;
 
-	brcmf_dbg(TRACE, "cmd %x set %d len %d\n", cmdhdr->cmd, cmdhdr->set,
-		  cmdhdr->len);
+	if (len < sizeof(*cmdhdr)) {
+		brcmf_err("vendor command too short: %d\n", len);
+		return -EINVAL;
+	}
 
 	vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
 	ifp = vif->ifp;
 
-	len -= sizeof(struct brcmf_vndr_dcmd_hdr);
+	brcmf_dbg(TRACE, "ifidx=%d, cmd=%d\n", ifp->ifidx, cmdhdr->cmd);
+
+	if (cmdhdr->offset > len) {
+		brcmf_err("bad buffer offset %d > %d\n", cmdhdr->offset, len);
+		return -EINVAL;
+	}
+
+	len -= cmdhdr->offset;
 	ret_len = cmdhdr->len;
 	if (ret_len > 0 || len > 0) {
 		if (len > BRCMF_DCMD_MAXLEN) {
diff --git a/drivers/net/wireless/iwlwifi/iwl-1000.c b/drivers/net/wireless/iwlwifi/iwl-1000.c
index c3817fae16c0..06f6cc08f451 100644
--- a/drivers/net/wireless/iwlwifi/iwl-1000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-1000.c
@@ -95,7 +95,8 @@ static const struct iwl_eeprom_params iwl1000_eeprom_params = {
 	.nvm_calib_ver = EEPROM_1000_TX_POWER_VERSION,	\
 	.base_params = &iwl1000_base_params,			\
 	.eeprom_params = &iwl1000_eeprom_params,		\
-	.led_mode = IWL_LED_BLINK
+	.led_mode = IWL_LED_BLINK,				\
+	.max_ht_ampdu_exponent = IEEE80211_HT_MAX_AMPDU_64K
 
 const struct iwl_cfg iwl1000_bgn_cfg = {
 	.name = "Intel(R) Centrino(R) Wireless-N 1000 BGN",
@@ -121,7 +122,8 @@ const struct iwl_cfg iwl1000_bg_cfg = {
 	.base_params = &iwl1000_base_params,			\
 	.eeprom_params = &iwl1000_eeprom_params,		\
 	.led_mode = IWL_LED_RF_STATE,				\
-	.rx_with_siso_diversity = true
+	.rx_with_siso_diversity = true,				\
+	.max_ht_ampdu_exponent = IEEE80211_HT_MAX_AMPDU_64K
 
 const struct iwl_cfg iwl100_bgn_cfg = {
 	.name = "Intel(R) Centrino(R) Wireless-N 100 BGN",
diff --git a/drivers/net/wireless/iwlwifi/iwl-2000.c b/drivers/net/wireless/iwlwifi/iwl-2000.c
index 21e5d0843a62..890b95f497d6 100644
--- a/drivers/net/wireless/iwlwifi/iwl-2000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-2000.c
@@ -123,7 +123,9 @@ static const struct iwl_eeprom_params iwl20x0_eeprom_params = {
 	.nvm_calib_ver = EEPROM_2000_TX_POWER_VERSION,		\
 	.base_params = &iwl2000_base_params,			\
 	.eeprom_params = &iwl20x0_eeprom_params,		\
-	.led_mode = IWL_LED_RF_STATE
+	.led_mode = IWL_LED_RF_STATE,				\
+	.max_ht_ampdu_exponent = IEEE80211_HT_MAX_AMPDU_64K
+
 
 const struct iwl_cfg iwl2000_2bgn_cfg = {
 	.name = "Intel(R) Centrino(R) Wireless-N 2200 BGN",
@@ -149,7 +151,8 @@ const struct iwl_cfg iwl2000_2bgn_d_cfg = {
 	.nvm_calib_ver = EEPROM_2000_TX_POWER_VERSION,	\
 	.base_params = &iwl2030_base_params,			\
 	.eeprom_params = &iwl20x0_eeprom_params,		\
-	.led_mode = IWL_LED_RF_STATE
+	.led_mode = IWL_LED_RF_STATE,				\
+	.max_ht_ampdu_exponent = IEEE80211_HT_MAX_AMPDU_64K
 
 const struct iwl_cfg iwl2030_2bgn_cfg = {
 	.name = "Intel(R) Centrino(R) Wireless-N 2230 BGN",
@@ -170,7 +173,8 @@ const struct iwl_cfg iwl2030_2bgn_cfg = {
 	.base_params = &iwl2000_base_params,			\
 	.eeprom_params = &iwl20x0_eeprom_params,		\
 	.led_mode = IWL_LED_RF_STATE,				\
-	.rx_with_siso_diversity = true
+	.rx_with_siso_diversity = true,				\
+	.max_ht_ampdu_exponent = IEEE80211_HT_MAX_AMPDU_64K
 
 const struct iwl_cfg iwl105_bgn_cfg = {
 	.name = "Intel(R) Centrino(R) Wireless-N 105 BGN",
@@ -197,7 +201,8 @@ const struct iwl_cfg iwl105_bgn_d_cfg = {
 	.base_params = &iwl2030_base_params,			\
 	.eeprom_params = &iwl20x0_eeprom_params,		\
 	.led_mode = IWL_LED_RF_STATE,				\
-	.rx_with_siso_diversity = true
+	.rx_with_siso_diversity = true,				\
+	.max_ht_ampdu_exponent = IEEE80211_HT_MAX_AMPDU_64K
 
 const struct iwl_cfg iwl135_bgn_cfg = {
 	.name = "Intel(R) Centrino(R) Wireless-N 135 BGN",
diff --git a/drivers/net/wireless/iwlwifi/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c
index 332bbede39e5..724194e23414 100644
--- a/drivers/net/wireless/iwlwifi/iwl-5000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-5000.c
@@ -93,7 +93,8 @@ static const struct iwl_eeprom_params iwl5000_eeprom_params = {
 	.nvm_calib_ver = EEPROM_5000_TX_POWER_VERSION,	\
 	.base_params = &iwl5000_base_params,			\
 	.eeprom_params = &iwl5000_eeprom_params,		\
-	.led_mode = IWL_LED_BLINK
+	.led_mode = IWL_LED_BLINK,				\
+	.max_ht_ampdu_exponent = IEEE80211_HT_MAX_AMPDU_64K
 
 const struct iwl_cfg iwl5300_agn_cfg = {
 	.name = "Intel(R) Ultimate N WiFi Link 5300 AGN",
@@ -158,7 +159,8 @@ const struct iwl_cfg iwl5350_agn_cfg = {
 	.base_params = &iwl5000_base_params,			\
 	.eeprom_params = &iwl5000_eeprom_params,		\
 	.led_mode = IWL_LED_BLINK,				\
-	.internal_wimax_coex = true
+	.internal_wimax_coex = true,				\
+	.max_ht_ampdu_exponent = IEEE80211_HT_MAX_AMPDU_64K
 
 const struct iwl_cfg iwl5150_agn_cfg = {
 	.name = "Intel(R) WiMAX/WiFi Link 5150 AGN",
diff --git a/drivers/net/wireless/iwlwifi/iwl-6000.c b/drivers/net/wireless/iwlwifi/iwl-6000.c
index 8f2c3c8c6b84..21b2630763dc 100644
--- a/drivers/net/wireless/iwlwifi/iwl-6000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-6000.c
@@ -145,7 +145,8 @@ static const struct iwl_eeprom_params iwl6000_eeprom_params = {
 	.nvm_calib_ver = EEPROM_6005_TX_POWER_VERSION,	\
 	.base_params = &iwl6000_g2_base_params,			\
 	.eeprom_params = &iwl6000_eeprom_params,		\
-	.led_mode = IWL_LED_RF_STATE
+	.led_mode = IWL_LED_RF_STATE,				\
+	.max_ht_ampdu_exponent = IEEE80211_HT_MAX_AMPDU_64K
 
 const struct iwl_cfg iwl6005_2agn_cfg = {
 	.name = "Intel(R) Centrino(R) Advanced-N 6205 AGN",
@@ -199,7 +200,8 @@ const struct iwl_cfg iwl6005_2agn_mow2_cfg = {
 	.nvm_calib_ver = EEPROM_6030_TX_POWER_VERSION,	\
 	.base_params = &iwl6000_g2_base_params,			\
 	.eeprom_params = &iwl6000_eeprom_params,		\
-	.led_mode = IWL_LED_RF_STATE
+	.led_mode = IWL_LED_RF_STATE,				\
+	.max_ht_ampdu_exponent = IEEE80211_HT_MAX_AMPDU_64K
 
 const struct iwl_cfg iwl6030_2agn_cfg = {
 	.name = "Intel(R) Centrino(R) Advanced-N 6230 AGN",
@@ -235,7 +237,8 @@ const struct iwl_cfg iwl6030_2bg_cfg = {
 	.nvm_calib_ver = EEPROM_6030_TX_POWER_VERSION,	\
 	.base_params = &iwl6000_g2_base_params,			\
 	.eeprom_params = &iwl6000_eeprom_params,		\
-	.led_mode = IWL_LED_RF_STATE
+	.led_mode = IWL_LED_RF_STATE,				\
+	.max_ht_ampdu_exponent = IEEE80211_HT_MAX_AMPDU_64K
 
 const struct iwl_cfg iwl6035_2agn_cfg = {
 	.name = "Intel(R) Centrino(R) Advanced-N 6235 AGN",
@@ -290,7 +293,8 @@ const struct iwl_cfg iwl130_bg_cfg = {
 	.nvm_calib_ver = EEPROM_6000_TX_POWER_VERSION,	\
 	.base_params = &iwl6000_base_params,			\
 	.eeprom_params = &iwl6000_eeprom_params,		\
-	.led_mode = IWL_LED_BLINK
+	.led_mode = IWL_LED_BLINK,				\
+	.max_ht_ampdu_exponent = IEEE80211_HT_MAX_AMPDU_64K
 
 const struct iwl_cfg iwl6000i_2agn_cfg = {
 	.name = "Intel(R) Centrino(R) Advanced-N 6200 AGN",
@@ -322,7 +326,8 @@ const struct iwl_cfg iwl6000i_2bg_cfg = {
 	.base_params = &iwl6050_base_params,			\
 	.eeprom_params = &iwl6000_eeprom_params,		\
 	.led_mode = IWL_LED_BLINK,				\
-	.internal_wimax_coex = true
+	.internal_wimax_coex = true,				\
+	.max_ht_ampdu_exponent = IEEE80211_HT_MAX_AMPDU_64K
 
 const struct iwl_cfg iwl6050_2agn_cfg = {
 	.name = "Intel(R) Centrino(R) Advanced-N + WiMAX 6250 AGN",
@@ -347,7 +352,8 @@ const struct iwl_cfg iwl6050_2abg_cfg = {
 	.base_params = &iwl6050_base_params,			\
 	.eeprom_params = &iwl6000_eeprom_params,		\
 	.led_mode = IWL_LED_BLINK,				\
-	.internal_wimax_coex = true
+	.internal_wimax_coex = true,				\
+	.max_ht_ampdu_exponent = IEEE80211_HT_MAX_AMPDU_64K
 
 const struct iwl_cfg iwl6150_bgn_cfg = {
 	.name = "Intel(R) Centrino(R) Wireless-N + WiMAX 6150 BGN",
diff --git a/drivers/net/wireless/iwlwifi/mvm/coex.c b/drivers/net/wireless/iwlwifi/mvm/coex.c
index 1ec4d55155f7..7810c41cf9a7 100644
--- a/drivers/net/wireless/iwlwifi/mvm/coex.c
+++ b/drivers/net/wireless/iwlwifi/mvm/coex.c
@@ -793,7 +793,8 @@ static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
 	if (!vif->bss_conf.assoc)
 		smps_mode = IEEE80211_SMPS_AUTOMATIC;
 
-	if (IWL_COEX_IS_RRC_ON(mvm->last_bt_notif.ttc_rrc_status,
+	if (mvmvif->phy_ctxt &&
+	    IWL_COEX_IS_RRC_ON(mvm->last_bt_notif.ttc_rrc_status,
 			       mvmvif->phy_ctxt->id))
 		smps_mode = IEEE80211_SMPS_AUTOMATIC;
 
diff --git a/drivers/net/wireless/iwlwifi/mvm/coex_legacy.c b/drivers/net/wireless/iwlwifi/mvm/coex_legacy.c
index d530ef3da107..542ee74f290a 100644
--- a/drivers/net/wireless/iwlwifi/mvm/coex_legacy.c
+++ b/drivers/net/wireless/iwlwifi/mvm/coex_legacy.c
@@ -832,7 +832,8 @@ static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
 	if (!vif->bss_conf.assoc)
 		smps_mode = IEEE80211_SMPS_AUTOMATIC;
 
-	if (data->notif->rrc_enabled & BIT(mvmvif->phy_ctxt->id))
+	if (mvmvif->phy_ctxt &&
+	    data->notif->rrc_enabled & BIT(mvmvif->phy_ctxt->id))
 		smps_mode = IEEE80211_SMPS_AUTOMATIC;
 
 	IWL_DEBUG_COEX(data->mvm,
diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index 1ff7ec08532d..09654e73a533 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -405,7 +405,10 @@ int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
 		hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
 			&mvm->nvm_data->bands[IEEE80211_BAND_5GHZ];
 
-		if (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_BEAMFORMER)
+		if ((mvm->fw->ucode_capa.capa[0] &
+		     IWL_UCODE_TLV_CAPA_BEAMFORMER) &&
+		    (mvm->fw->ucode_capa.api[0] &
+		     IWL_UCODE_TLV_API_LQ_SS_PARAMS))
 			hw->wiphy->bands[IEEE80211_BAND_5GHZ]->vht_cap.cap |=
 				IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE;
 	}
@@ -2215,7 +2218,19 @@ static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw,
 
 	mutex_lock(&mvm->mutex);
 
-	iwl_mvm_cancel_scan(mvm);
+	/* Due to a race condition, it's possible that mac80211 asks
+	 * us to stop a hw_scan when it's already stopped.  This can
+	 * happen, for instance, if we stopped the scan ourselves,
+	 * called ieee80211_scan_completed() and the userspace called
+	 * cancel scan scan before ieee80211_scan_work() could run.
+	 * To handle that, simply return if the scan is not running.
+	*/
+	/* FIXME: for now, we ignore this race for UMAC scans, since
+	 * they don't set the scan_status.
+	 */
+	if ((mvm->scan_status == IWL_MVM_SCAN_OS) ||
+	    (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN))
+		iwl_mvm_cancel_scan(mvm);
 
 	mutex_unlock(&mvm->mutex);
 }
@@ -2559,12 +2574,29 @@ static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw,
 	int ret;
 
 	mutex_lock(&mvm->mutex);
+
+	/* Due to a race condition, it's possible that mac80211 asks
+	 * us to stop a sched_scan when it's already stopped.  This
+	 * can happen, for instance, if we stopped the scan ourselves,
+	 * called ieee80211_sched_scan_stopped() and the userspace called
+	 * stop sched scan scan before ieee80211_sched_scan_stopped_work()
+	 * could run.  To handle this, simply return if the scan is
+	 * not running.
+	*/
+	/* FIXME: for now, we ignore this race for UMAC scans, since
+	 * they don't set the scan_status.
+	 */
+	if (mvm->scan_status != IWL_MVM_SCAN_SCHED &&
+	    !(mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
+		mutex_unlock(&mvm->mutex);
+		return 0;
+	}
+
 	ret = iwl_mvm_scan_offload_stop(mvm, false);
 	mutex_unlock(&mvm->mutex);
 	iwl_mvm_wait_for_async_handlers(mvm);
 
 	return ret;
-
 }
 
 static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
diff --git a/drivers/net/wireless/iwlwifi/mvm/rs.c b/drivers/net/wireless/iwlwifi/mvm/rs.c
index 194bd1f939ca..efa9688a4cf1 100644
--- a/drivers/net/wireless/iwlwifi/mvm/rs.c
+++ b/drivers/net/wireless/iwlwifi/mvm/rs.c
@@ -134,9 +134,12 @@ enum rs_column_mode {
 #define MAX_NEXT_COLUMNS 7
 #define MAX_COLUMN_CHECKS 3
 
+struct rs_tx_column;
+
 typedef bool (*allow_column_func_t) (struct iwl_mvm *mvm,
 				     struct ieee80211_sta *sta,
-				     struct iwl_scale_tbl_info *tbl);
+				     struct iwl_scale_tbl_info *tbl,
+				     const struct rs_tx_column *next_col);
 
 struct rs_tx_column {
 	enum rs_column_mode mode;
@@ -147,13 +150,15 @@ struct rs_tx_column {
 };
 
 static bool rs_ant_allow(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
-			 struct iwl_scale_tbl_info *tbl)
+			 struct iwl_scale_tbl_info *tbl,
+			 const struct rs_tx_column *next_col)
 {
-	return iwl_mvm_bt_coex_is_ant_avail(mvm, tbl->rate.ant);
+	return iwl_mvm_bt_coex_is_ant_avail(mvm, next_col->ant);
 }
 
 static bool rs_mimo_allow(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
-			  struct iwl_scale_tbl_info *tbl)
+			  struct iwl_scale_tbl_info *tbl,
+			  const struct rs_tx_column *next_col)
 {
 	if (!sta->ht_cap.ht_supported)
 		return false;
@@ -171,7 +176,8 @@ static bool rs_mimo_allow(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
 }
 
 static bool rs_siso_allow(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
-			  struct iwl_scale_tbl_info *tbl)
+			  struct iwl_scale_tbl_info *tbl,
+			  const struct rs_tx_column *next_col)
 {
 	if (!sta->ht_cap.ht_supported)
 		return false;
@@ -180,7 +186,8 @@ static bool rs_siso_allow(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
 }
 
 static bool rs_sgi_allow(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
-			 struct iwl_scale_tbl_info *tbl)
+			 struct iwl_scale_tbl_info *tbl,
+			 const struct rs_tx_column *next_col)
 {
 	struct rs_rate *rate = &tbl->rate;
 	struct ieee80211_sta_ht_cap *ht_cap = &sta->ht_cap;
@@ -1590,7 +1597,7 @@ static enum rs_column rs_get_next_column(struct iwl_mvm *mvm,
 
 		for (j = 0; j < MAX_COLUMN_CHECKS; j++) {
 			allow_func = next_col->checks[j];
-			if (allow_func && !allow_func(mvm, sta, tbl))
+			if (allow_func && !allow_func(mvm, sta, tbl, next_col))
 				break;
 		}
 
diff --git a/drivers/net/wireless/iwlwifi/mvm/scan.c b/drivers/net/wireless/iwlwifi/mvm/scan.c
index 7e9aa3cb3254..c47c8051da77 100644
--- a/drivers/net/wireless/iwlwifi/mvm/scan.c
+++ b/drivers/net/wireless/iwlwifi/mvm/scan.c
@@ -1128,8 +1128,10 @@ int iwl_mvm_scan_offload_stop(struct iwl_mvm *mvm, bool notify)
 	if (mvm->scan_status == IWL_MVM_SCAN_NONE)
 		return 0;
 
-	if (iwl_mvm_is_radio_killed(mvm))
+	if (iwl_mvm_is_radio_killed(mvm)) {
+		ret = 0;
 		goto out;
+	}
 
 	if (mvm->scan_status != IWL_MVM_SCAN_SCHED &&
 	    (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_LMAC_SCAN) ||
@@ -1148,16 +1150,14 @@ int iwl_mvm_scan_offload_stop(struct iwl_mvm *mvm, bool notify)
 		IWL_DEBUG_SCAN(mvm, "Send stop %sscan failed %d\n",
 			       sched ? "offloaded " : "", ret);
 		iwl_remove_notification(&mvm->notif_wait, &wait_scan_done);
-		return ret;
+		goto out;
 	}
 
 	IWL_DEBUG_SCAN(mvm, "Successfully sent stop %sscan\n",
 		       sched ? "offloaded " : "");
 
 	ret = iwl_wait_notification(&mvm->notif_wait, &wait_scan_done, 1 * HZ);
-	if (ret)
-		return ret;
-
+out:
 	/*
 	 * Clear the scan status so the next scan requests will succeed. This
 	 * also ensures the Rx handler doesn't do anything, as the scan was
@@ -1167,7 +1167,6 @@ int iwl_mvm_scan_offload_stop(struct iwl_mvm *mvm, bool notify)
 	if (mvm->scan_status == IWL_MVM_SCAN_OS)
 		iwl_mvm_unref(mvm, IWL_MVM_REF_SCAN);
 
-out:
 	mvm->scan_status = IWL_MVM_SCAN_NONE;
 
 	if (notify) {
@@ -1177,7 +1176,7 @@ out:
 			ieee80211_scan_completed(mvm->hw, true);
 	}
 
-	return 0;
+	return ret;
 }
 
 static void iwl_mvm_unified_scan_fill_tx_cmd(struct iwl_mvm *mvm,
diff --git a/drivers/net/wireless/iwlwifi/mvm/time-event.c b/drivers/net/wireless/iwlwifi/mvm/time-event.c
index 54fafbf9a711..f8d6f306dd76 100644
--- a/drivers/net/wireless/iwlwifi/mvm/time-event.c
+++ b/drivers/net/wireless/iwlwifi/mvm/time-event.c
@@ -750,8 +750,7 @@ void iwl_mvm_stop_roc(struct iwl_mvm *mvm)
 	 * request
 	 */
 	list_for_each_entry(te_data, &mvm->time_event_list, list) {
-		if (te_data->vif->type == NL80211_IFTYPE_P2P_DEVICE &&
-		    te_data->running) {
+		if (te_data->vif->type == NL80211_IFTYPE_P2P_DEVICE) {
 			mvmvif = iwl_mvm_vif_from_mac80211(te_data->vif);
 			is_p2p = true;
 			goto remove_te;
@@ -766,10 +765,8 @@ void iwl_mvm_stop_roc(struct iwl_mvm *mvm)
 	 * request
 	 */
 	list_for_each_entry(te_data, &mvm->aux_roc_te_list, list) {
-		if (te_data->running) {
-			mvmvif = iwl_mvm_vif_from_mac80211(te_data->vif);
-			goto remove_te;
-		}
+		mvmvif = iwl_mvm_vif_from_mac80211(te_data->vif);
+		goto remove_te;
 	}
 
 remove_te:
diff --git a/drivers/net/wireless/rtlwifi/base.c b/drivers/net/wireless/rtlwifi/base.c
index 1d4677460711..074f716020aa 100644
--- a/drivers/net/wireless/rtlwifi/base.c
+++ b/drivers/net/wireless/rtlwifi/base.c
@@ -1386,8 +1386,11 @@ u8 rtl_is_special_data(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx)
 		}
 
 		return true;
-	} else if (0x86DD == ether_type) {
-		return true;
+	} else if (ETH_P_IPV6 == ether_type) {
+		/* TODO: Handle any IPv6 cases that need special handling.
+		 * For now, always return false
+		 */
+		goto end;
 	}
 
 end:
diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c
index cab9f5257f57..997cf0901ac2 100644
--- a/drivers/net/xen-netback/netback.c
+++ b/drivers/net/xen-netback/netback.c
@@ -96,6 +96,7 @@ static void xenvif_idx_release(struct xenvif_queue *queue, u16 pending_idx,
 static void make_tx_response(struct xenvif_queue *queue,
 			     struct xen_netif_tx_request *txp,
 			     s8       st);
+static void push_tx_responses(struct xenvif_queue *queue);
 
 static inline int tx_work_todo(struct xenvif_queue *queue);
 
@@ -655,15 +656,10 @@ static void xenvif_tx_err(struct xenvif_queue *queue,
 	unsigned long flags;
 
 	do {
-		int notify;
-
 		spin_lock_irqsave(&queue->response_lock, flags);
 		make_tx_response(queue, txp, XEN_NETIF_RSP_ERROR);
-		RING_PUSH_RESPONSES_AND_CHECK_NOTIFY(&queue->tx, notify);
+		push_tx_responses(queue);
 		spin_unlock_irqrestore(&queue->response_lock, flags);
-		if (notify)
-			notify_remote_via_irq(queue->tx_irq);
-
 		if (cons == end)
 			break;
 		txp = RING_GET_REQUEST(&queue->tx, cons++);
@@ -1657,7 +1653,6 @@ static void xenvif_idx_release(struct xenvif_queue *queue, u16 pending_idx,
 {
 	struct pending_tx_info *pending_tx_info;
 	pending_ring_idx_t index;
-	int notify;
 	unsigned long flags;
 
 	pending_tx_info = &queue->pending_tx_info[pending_idx];
@@ -1673,12 +1668,9 @@ static void xenvif_idx_release(struct xenvif_queue *queue, u16 pending_idx,
 	index = pending_index(queue->pending_prod++);
 	queue->pending_ring[index] = pending_idx;
 
-	RING_PUSH_RESPONSES_AND_CHECK_NOTIFY(&queue->tx, notify);
+	push_tx_responses(queue);
 
 	spin_unlock_irqrestore(&queue->response_lock, flags);
-
-	if (notify)
-		notify_remote_via_irq(queue->tx_irq);
 }
 
 
@@ -1699,6 +1691,15 @@ static void make_tx_response(struct xenvif_queue *queue,
 	queue->tx.rsp_prod_pvt = ++i;
 }
 
+static void push_tx_responses(struct xenvif_queue *queue)
+{
+	int notify;
+
+	RING_PUSH_RESPONSES_AND_CHECK_NOTIFY(&queue->tx, notify);
+	if (notify)
+		notify_remote_via_irq(queue->tx_irq);
+}
+
 static struct xen_netif_rx_response *make_rx_response(struct xenvif_queue *queue,
 					     u16      id,
 					     s8       st,