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

Pull networking updates from David Miller:
 "Here is my initial pull request for the networking subsystem during
  this merge window:

   1) Support for ESN in AH (RFC 4302) from Fan Du.

   2) Add full kernel doc for ethtool command structures, from Ben
      Hutchings.

   3) Add BCM7xxx PHY driver, from Florian Fainelli.

   4) Export computed TCP rate information in netlink socket dumps, from
      Eric Dumazet.

   5) Allow IPSEC SA to be dumped partially using a filter, from Nicolas
      Dichtel.

   6) Convert many drivers to pci_enable_msix_range(), from Alexander
      Gordeev.

   7) Record SKB timestamps more efficiently, from Eric Dumazet.

   8) Switch to microsecond resolution for TCP round trip times, also
      from Eric Dumazet.

   9) Clean up and fix 6lowpan fragmentation handling by making use of
      the existing inet_frag api for it's implementation.

  10) Add TX grant mapping to xen-netback driver, from Zoltan Kiss.

  11) Auto size SKB lengths when composing netlink messages based upon
      past message sizes used, from Eric Dumazet.

  12) qdisc dumps can take a long time, add a cond_resched(), From Eric
      Dumazet.

  13) Sanitize netpoll core and drivers wrt.  SKB handling semantics.
      Get rid of never-used-in-tree netpoll RX handling.  From Eric W
      Biederman.

  14) Support inter-address-family and namespace changing in VTI tunnel
      driver(s).  From Steffen Klassert.

  15) Add Altera TSE driver, from Vince Bridgers.

  16) Optimizing csum_replace2() so that it doesn't adjust the checksum
      by checksumming the entire header, from Eric Dumazet.

  17) Expand BPF internal implementation for faster interpreting, more
      direct translations into JIT'd code, and much cleaner uses of BPF
      filtering in non-socket ocntexts.  From Daniel Borkmann and Alexei
      Starovoitov"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1976 commits)
  netpoll: Use skb_irq_freeable to make zap_completion_queue safe.
  net: Add a test to see if a skb is freeable in irq context
  qlcnic: Fix build failure due to undefined reference to `vxlan_get_rx_port'
  net: ptp: move PTP classifier in its own file
  net: sxgbe: make "core_ops" static
  net: sxgbe: fix logical vs bitwise operation
  net: sxgbe: sxgbe_mdio_register() frees the bus
  Call efx_set_channels() before efx->type->dimension_resources()
  xen-netback: disable rogue vif in kthread context
  net/mlx4: Set proper build dependancy with vxlan
  be2net: fix build dependency on VxLAN
  mac802154: make csma/cca parameters per-wpan
  mac802154: allow only one WPAN to be up at any given time
  net: filter: minor: fix kdoc in __sk_run_filter
  netlink: don't compare the nul-termination in nla_strcmp
  can: c_can: Avoid led toggling for every packet.
  can: c_can: Simplify TX interrupt cleanup
  can: c_can: Store dlc private
  can: c_can: Reduce register access
  can: c_can: Make the code readable
  ...

5 files changed, 33 insertions, 44 deletions

diff --git a/drivers/net/ethernet/atheros/alx/main.c b/drivers/net/ethernet/atheros/alx/main.c
index 380d24922049..17bb9ce96260 100644
--- a/drivers/net/ethernet/atheros/alx/main.c
+++ b/drivers/net/ethernet/atheros/alx/main.c
@@ -535,7 +535,7 @@ static int alx_alloc_descriptors(struct alx_priv *alx)
 	if (!alx->descmem.virt)
 		goto out_free;
 
-	alx->txq.tpd = (void *)alx->descmem.virt;
+	alx->txq.tpd = alx->descmem.virt;
 	alx->txq.tpd_dma = alx->descmem.dma;
 
 	/* alignment requirement for next block */
@@ -1097,7 +1097,7 @@ static netdev_tx_t alx_start_xmit(struct sk_buff *skb,
 	return NETDEV_TX_OK;
 
 drop:
-	dev_kfree_skb(skb);
+	dev_kfree_skb_any(skb);
 	return NETDEV_TX_OK;
 }
 
diff --git a/drivers/net/ethernet/atheros/atl1c/atl1c_main.c b/drivers/net/ethernet/atheros/atl1c/atl1c_main.c
index 4d3258dd0a88..e11bf18fbbd1 100644
--- a/drivers/net/ethernet/atheros/atl1c/atl1c_main.c
+++ b/drivers/net/ethernet/atheros/atl1c/atl1c_main.c
@@ -832,7 +832,7 @@ static int atl1c_sw_init(struct atl1c_adapter *adapter)
 }
 
 static inline void atl1c_clean_buffer(struct pci_dev *pdev,
-				struct atl1c_buffer *buffer_info, int in_irq)
+				struct atl1c_buffer *buffer_info)
 {
 	u16 pci_driection;
 	if (buffer_info->flags & ATL1C_BUFFER_FREE)
@@ -850,12 +850,8 @@ static inline void atl1c_clean_buffer(struct pci_dev *pdev,
 			pci_unmap_page(pdev, buffer_info->dma,
 					buffer_info->length, pci_driection);
 	}
-	if (buffer_info->skb) {
-		if (in_irq)
-			dev_kfree_skb_irq(buffer_info->skb);
-		else
-			dev_kfree_skb(buffer_info->skb);
-	}
+	if (buffer_info->skb)
+		dev_consume_skb_any(buffer_info->skb);
 	buffer_info->dma = 0;
 	buffer_info->skb = NULL;
 	ATL1C_SET_BUFFER_STATE(buffer_info, ATL1C_BUFFER_FREE);
@@ -875,7 +871,7 @@ static void atl1c_clean_tx_ring(struct atl1c_adapter *adapter,
 	ring_count = tpd_ring->count;
 	for (index = 0; index < ring_count; index++) {
 		buffer_info = &tpd_ring->buffer_info[index];
-		atl1c_clean_buffer(pdev, buffer_info, 0);
+		atl1c_clean_buffer(pdev, buffer_info);
 	}
 
 	/* Zero out Tx-buffers */
@@ -899,7 +895,7 @@ static void atl1c_clean_rx_ring(struct atl1c_adapter *adapter)
 
 	for (j = 0; j < rfd_ring->count; j++) {
 		buffer_info = &rfd_ring->buffer_info[j];
-		atl1c_clean_buffer(pdev, buffer_info, 0);
+		atl1c_clean_buffer(pdev, buffer_info);
 	}
 	/* zero out the descriptor ring */
 	memset(rfd_ring->desc, 0, rfd_ring->size);
@@ -1562,7 +1558,7 @@ static bool atl1c_clean_tx_irq(struct atl1c_adapter *adapter,
 
 	while (next_to_clean != hw_next_to_clean) {
 		buffer_info = &tpd_ring->buffer_info[next_to_clean];
-		atl1c_clean_buffer(pdev, buffer_info, 1);
+		atl1c_clean_buffer(pdev, buffer_info);
 		if (++next_to_clean == tpd_ring->count)
 			next_to_clean = 0;
 		atomic_set(&tpd_ring->next_to_clean, next_to_clean);
@@ -1977,17 +1973,17 @@ static int atl1c_tso_csum(struct atl1c_adapter *adapter,
 			  enum atl1c_trans_queue type)
 {
 	struct pci_dev *pdev = adapter->pdev;
+	unsigned short offload_type;
 	u8 hdr_len;
 	u32 real_len;
-	unsigned short offload_type;
-	int err;
 
 	if (skb_is_gso(skb)) {
-		if (skb_header_cloned(skb)) {
-			err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC);
-			if (unlikely(err))
-				return -1;
-		}
+		int err;
+
+		err = skb_cow_head(skb, 0);
+		if (err < 0)
+			return err;
+
 		offload_type = skb_shinfo(skb)->gso_type;
 
 		if (offload_type & SKB_GSO_TCPV4) {
@@ -2085,7 +2081,7 @@ static void atl1c_tx_rollback(struct atl1c_adapter *adpt,
 	while (index != tpd_ring->next_to_use) {
 		tpd = ATL1C_TPD_DESC(tpd_ring, index);
 		buffer_info = &tpd_ring->buffer_info[index];
-		atl1c_clean_buffer(adpt->pdev, buffer_info, 0);
+		atl1c_clean_buffer(adpt->pdev, buffer_info);
 		memset(tpd, 0, sizeof(struct atl1c_tpd_desc));
 		if (++index == tpd_ring->count)
 			index = 0;
@@ -2258,7 +2254,7 @@ static netdev_tx_t atl1c_xmit_frame(struct sk_buff *skb,
 		/* roll back tpd/buffer */
 		atl1c_tx_rollback(adapter, tpd, type);
 		spin_unlock_irqrestore(&adapter->tx_lock, flags);
-		dev_kfree_skb(skb);
+		dev_kfree_skb_any(skb);
 	} else {
 		atl1c_tx_queue(adapter, skb, tpd, type);
 		spin_unlock_irqrestore(&adapter->tx_lock, flags);
diff --git a/drivers/net/ethernet/atheros/atl1e/atl1e_main.c b/drivers/net/ethernet/atheros/atl1e/atl1e_main.c
index 422aab27ea1b..4345332533ad 100644
--- a/drivers/net/ethernet/atheros/atl1e/atl1e_main.c
+++ b/drivers/net/ethernet/atheros/atl1e/atl1e_main.c
@@ -1641,17 +1641,17 @@ static u16 atl1e_cal_tdp_req(const struct sk_buff *skb)
 static int atl1e_tso_csum(struct atl1e_adapter *adapter,
 		       struct sk_buff *skb, struct atl1e_tpd_desc *tpd)
 {
+	unsigned short offload_type;
 	u8 hdr_len;
 	u32 real_len;
-	unsigned short offload_type;
-	int err;
 
 	if (skb_is_gso(skb)) {
-		if (skb_header_cloned(skb)) {
-			err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC);
-			if (unlikely(err))
-				return -1;
-		}
+		int err;
+
+		err = skb_cow_head(skb, 0);
+		if (err < 0)
+			return err;
+
 		offload_type = skb_shinfo(skb)->gso_type;
 
 		if (offload_type & SKB_GSO_TCPV4) {
diff --git a/drivers/net/ethernet/atheros/atlx/atl1.c b/drivers/net/ethernet/atheros/atlx/atl1.c
index 287272dd69da..dfd0e91fa726 100644
--- a/drivers/net/ethernet/atheros/atlx/atl1.c
+++ b/drivers/net/ethernet/atheros/atlx/atl1.c
@@ -2118,18 +2118,17 @@ static u16 atl1_tpd_avail(struct atl1_tpd_ring *tpd_ring)
 }
 
 static int atl1_tso(struct atl1_adapter *adapter, struct sk_buff *skb,
-	struct tx_packet_desc *ptpd)
+		    struct tx_packet_desc *ptpd)
 {
 	u8 hdr_len, ip_off;
 	u32 real_len;
-	int err;
 
 	if (skb_shinfo(skb)->gso_size) {
-		if (skb_header_cloned(skb)) {
-			err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC);
-			if (unlikely(err))
-				return -1;
-		}
+		int err;
+
+		err = skb_cow_head(skb, 0);
+		if (err < 0)
+			return err;
 
 		if (skb->protocol == htons(ETH_P_IP)) {
 			struct iphdr *iph = ip_hdr(skb);
@@ -2175,7 +2174,7 @@ static int atl1_tso(struct atl1_adapter *adapter, struct sk_buff *skb,
 			return 3;
 		}
 	}
-	return false;
+	return 0;
 }
 
 static int atl1_tx_csum(struct atl1_adapter *adapter, struct sk_buff *skb,
diff --git a/drivers/net/ethernet/atheros/atlx/atl2.c b/drivers/net/ethernet/atheros/atlx/atl2.c
index 265ce1b752ed..78befb522a52 100644
--- a/drivers/net/ethernet/atheros/atlx/atl2.c
+++ b/drivers/net/ethernet/atheros/atlx/atl2.c
@@ -55,6 +55,7 @@ static const char atl2_driver_name[] = "atl2";
 static const char atl2_driver_string[] = "Atheros(R) L2 Ethernet Driver";
 static const char atl2_copyright[] = "Copyright (c) 2007 Atheros Corporation.";
 static const char atl2_driver_version[] = ATL2_DRV_VERSION;
+static const struct ethtool_ops atl2_ethtool_ops;
 
 MODULE_AUTHOR("Atheros Corporation <xiong.huang@atheros.com>, Chris Snook <csnook@redhat.com>");
 MODULE_DESCRIPTION("Atheros Fast Ethernet Network Driver");
@@ -71,8 +72,6 @@ static DEFINE_PCI_DEVICE_TABLE(atl2_pci_tbl) = {
 };
 MODULE_DEVICE_TABLE(pci, atl2_pci_tbl);
 
-static void atl2_set_ethtool_ops(struct net_device *netdev);
-
 static void atl2_check_options(struct atl2_adapter *adapter);
 
 /**
@@ -1397,7 +1396,7 @@ static int atl2_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	atl2_setup_pcicmd(pdev);
 
 	netdev->netdev_ops = &atl2_netdev_ops;
-	atl2_set_ethtool_ops(netdev);
+	SET_ETHTOOL_OPS(netdev, &atl2_ethtool_ops);
 	netdev->watchdog_timeo = 5 * HZ;
 	strncpy(netdev->name, pci_name(pdev), sizeof(netdev->name) - 1);
 
@@ -2105,11 +2104,6 @@ static const struct ethtool_ops atl2_ethtool_ops = {
 	.set_eeprom		= atl2_set_eeprom,
 };
 
-static void atl2_set_ethtool_ops(struct net_device *netdev)
-{
-	SET_ETHTOOL_OPS(netdev, &atl2_ethtool_ops);
-}
-
 #define LBYTESWAP(a)  ((((a) & 0x00ff00ff) << 8) | \
 	(((a) & 0xff00ff00) >> 8))
 #define LONGSWAP(a)   ((LBYTESWAP(a) << 16) | (LBYTESWAP(a) >> 16))