Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (37 commits)
  net: deinit automatic LIST_HEAD
  net: dont leave active on stack LIST_HEAD
  net: provide default_advmss() methods to blackhole dst_ops
  tg3: Restrict phy ioctl access
  drivers/net: Call netif_carrier_off at the end of the probe
  ixgbe: work around for DDP last buffer size
  ixgbe: fix panic due to uninitialised pointer
  e1000e: flush all writebacks before unload
  e1000e: check down flag in tasks
  isdn: hisax: Use l2headersize() instead of dup (and buggy) func.
  arp_notify: unconditionally send gratuitous ARP for NETDEV_NOTIFY_PEERS.
  cxgb4vf: Use defined Mailbox Timeout
  cxgb4vf: Quiesce Virtual Interfaces on shutdown ...
  cxgb4vf: Behave properly when CONFIG_DEBUG_FS isn't defined ...
  cxgb4vf: Check driver parameters in the right place ...
  pch_gbe: Fix the MAC Address load issue.
  iwlwifi: Delete iwl3945_good_plcp_health.
  net/can/softing: make CAN_SOFTING_CS depend on CAN_SOFTING
  netfilter: nf_iterate: fix incorrect RCU usage
  pch_gbe: Fix the issue that the receiving data is not normal.
  ...

Documentation/networking/Makefile

@@ -4,6 +4,8 @@ obj- := dummy.o
 # List of programs to build
 hostprogs-y := ifenslave
 
+HOSTCFLAGS_ifenslave.o += -I$(objtree)/usr/include
+
 # Tell kbuild to always build the programs
 always := $(hostprogs-y)
 

drivers/atm/solos-pci.c

@@ -866,8 +866,9 @@ static int popen(struct atm_vcc *vcc)
 	}
 
 	skb = alloc_skb(sizeof(*header), GFP_ATOMIC);
-	if (!skb && net_ratelimit()) {
-		dev_warn(&card->dev->dev, "Failed to allocate sk_buff in popen()\n");
+	if (!skb) {
+		if (net_ratelimit())
+			dev_warn(&card->dev->dev, "Failed to allocate sk_buff in popen()\n");
 		return -ENOMEM;
 	}
 	header = (void *)skb_put(skb, sizeof(*header));

drivers/bluetooth/ath3k.c

@@ -39,6 +39,8 @@ static struct usb_device_id ath3k_table[] = {
 	/* Atheros AR3011 with sflash firmware*/
 	{ USB_DEVICE(0x0CF3, 0x3002) },
 
+	/* Atheros AR9285 Malbec with sflash firmware */
+	{ USB_DEVICE(0x03F0, 0x311D) },
 	{ }	/* Terminating entry */
 };
 

drivers/bluetooth/btusb.c

@@ -102,6 +102,9 @@ static struct usb_device_id blacklist_table[] = {
 	/* Atheros 3011 with sflash firmware */
 	{ USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
 
+	/* Atheros AR9285 Malbec with sflash firmware */
+	{ USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
+
 	/* Broadcom BCM2035 */
 	{ USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
 	{ USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },

drivers/isdn/hisax/isdnl2.c

@@ -1247,10 +1247,10 @@ static void
 l2_pull_iqueue(struct FsmInst *fi, int event, void *arg)
 {
 	struct PStack *st = fi->userdata;
-	struct sk_buff *skb, *oskb;
+	struct sk_buff *skb;
 	struct Layer2 *l2 = &st->l2;
 	u_char header[MAX_HEADER_LEN];
-	int i;
+	int i, hdr_space_needed;
 	int unsigned p1;
 	u_long flags;
 
@@ -1261,6 +1261,16 @@ l2_pull_iqueue(struct FsmInst *fi, int event, void *arg)
 	if (!skb)
 		return;
 
+	hdr_space_needed = l2headersize(l2, 0);
+	if (hdr_space_needed > skb_headroom(skb)) {
+		struct sk_buff *orig_skb = skb;
+
+		skb = skb_realloc_headroom(skb, hdr_space_needed);
+		if (!skb) {
+			dev_kfree_skb(orig_skb);
+			return;
+		}
+	}
 	spin_lock_irqsave(&l2->lock, flags);
 	if(test_bit(FLG_MOD128, &l2->flag))
 		p1 = (l2->vs - l2->va) % 128;
@@ -1285,19 +1295,7 @@ l2_pull_iqueue(struct FsmInst *fi, int event, void *arg)
 		l2->vs = (l2->vs + 1) % 8;
 	}
 	spin_unlock_irqrestore(&l2->lock, flags);
-	p1 = skb->data - skb->head;
-	if (p1 >= i)
-		memcpy(skb_push(skb, i), header, i);
-	else {
-		printk(KERN_WARNING
-		"isdl2 pull_iqueue skb header(%d/%d) too short\n", i, p1);
-		oskb = skb;
-		skb = alloc_skb(oskb->len + i, GFP_ATOMIC);
-		memcpy(skb_put(skb, i), header, i);
-		skb_copy_from_linear_data(oskb,
-					  skb_put(skb, oskb->len), oskb->len);
-		dev_kfree_skb(oskb);
-	}
+	memcpy(skb_push(skb, i), header, i);
 	st->l2.l2l1(st, PH_PULL | INDICATION, skb);
 	test_and_clear_bit(FLG_ACK_PEND, &st->l2.flag);
 	if (!test_and_set_bit(FLG_T200_RUN, &st->l2.flag)) {

drivers/net/can/softing/Kconfig

@@ -18,7 +18,7 @@ config CAN_SOFTING
 config CAN_SOFTING_CS
 	tristate "Softing Gmbh CAN pcmcia cards"
 	depends on PCMCIA
-	select CAN_SOFTING
+	depends on CAN_SOFTING
 	---help---
 	  Support for PCMCIA cards from Softing Gmbh & some cards
 	  from Vector Gmbh.

drivers/net/cxgb4vf/cxgb4vf_main.c

@@ -2040,7 +2040,7 @@ static int __devinit setup_debugfs(struct adapter *adapter)
 {
 	int i;
 
-	BUG_ON(adapter->debugfs_root == NULL);
+	BUG_ON(IS_ERR_OR_NULL(adapter->debugfs_root));
 
 	/*
 	 * Debugfs support is best effort.
@@ -2061,7 +2061,7 @@ static int __devinit setup_debugfs(struct adapter *adapter)
  */
 static void cleanup_debugfs(struct adapter *adapter)
 {
-	BUG_ON(adapter->debugfs_root == NULL);
+	BUG_ON(IS_ERR_OR_NULL(adapter->debugfs_root));
 
 	/*
 	 * Unlike our sister routine cleanup_proc(), we don't need to remove
@@ -2488,17 +2488,6 @@ static int __devinit cxgb4vf_pci_probe(struct pci_dev *pdev,
 	struct port_info *pi;
 	struct net_device *netdev;
 
-	/*
-	 * Vet our module parameters.
-	 */
-	if (msi != MSI_MSIX && msi != MSI_MSI) {
-		dev_err(&pdev->dev, "bad module parameter msi=%d; must be %d"
-			" (MSI-X or MSI) or %d (MSI)\n", msi, MSI_MSIX,
-			MSI_MSI);
-		err = -EINVAL;
-		goto err_out;
-	}
-
 	/*
 	 * Print our driver banner the first time we're called to initialize a
 	 * device.
@@ -2711,11 +2700,11 @@ static int __devinit cxgb4vf_pci_probe(struct pci_dev *pdev,
 	/*
 	 * Set up our debugfs entries.
 	 */
-	if (cxgb4vf_debugfs_root) {
+	if (!IS_ERR_OR_NULL(cxgb4vf_debugfs_root)) {
 		adapter->debugfs_root =
 			debugfs_create_dir(pci_name(pdev),
 					   cxgb4vf_debugfs_root);
-		if (adapter->debugfs_root == NULL)
+		if (IS_ERR_OR_NULL(adapter->debugfs_root))
 			dev_warn(&pdev->dev, "could not create debugfs"
 				 " directory");
 		else
@@ -2770,7 +2759,7 @@ static int __devinit cxgb4vf_pci_probe(struct pci_dev *pdev,
 	 */
 
 err_free_debugfs:
-	if (adapter->debugfs_root) {
+	if (!IS_ERR_OR_NULL(adapter->debugfs_root)) {
 		cleanup_debugfs(adapter);
 		debugfs_remove_recursive(adapter->debugfs_root);
 	}
@@ -2802,7 +2791,6 @@ err_release_regions:
 err_disable_device:
 	pci_disable_device(pdev);
 
-err_out:
 	return err;
 }
 
@@ -2840,7 +2828,7 @@ static void __devexit cxgb4vf_pci_remove(struct pci_dev *pdev)
 		/*
 		 * Tear down our debugfs entries.
 		 */
-		if (adapter->debugfs_root) {
+		if (!IS_ERR_OR_NULL(adapter->debugfs_root)) {
 			cleanup_debugfs(adapter);
 			debugfs_remove_recursive(adapter->debugfs_root);
 		}
@@ -2873,6 +2861,46 @@ static void __devexit cxgb4vf_pci_remove(struct pci_dev *pdev)
 	pci_release_regions(pdev);
 }
 
+/*
+ * "Shutdown" quiesce the device, stopping Ingress Packet and Interrupt
+ * delivery.
+ */
+static void __devexit cxgb4vf_pci_shutdown(struct pci_dev *pdev)
+{
+	struct adapter *adapter;
+	int pidx;
+
+	adapter = pci_get_drvdata(pdev);
+	if (!adapter)
+		return;
+
+	/*
+	 * Disable all Virtual Interfaces.  This will shut down the
+	 * delivery of all ingress packets into the chip for these
+	 * Virtual Interfaces.
+	 */
+	for_each_port(adapter, pidx) {
+		struct net_device *netdev;
+		struct port_info *pi;
+
+		if (!test_bit(pidx, &adapter->registered_device_map))
+			continue;
+
+		netdev = adapter->port[pidx];
+		if (!netdev)
+			continue;
+
+		pi = netdev_priv(netdev);
+		t4vf_enable_vi(adapter, pi->viid, false, false);
+	}
+
+	/*
+	 * Free up all Queues which will prevent further DMA and
+	 * Interrupts allowing various internal pathways to drain.
+	 */
+	t4vf_free_sge_resources(adapter);
+}
+
 /*
  * PCI Device registration data structures.
  */
@@ -2906,6 +2934,7 @@ static struct pci_driver cxgb4vf_driver = {
 	.id_table	= cxgb4vf_pci_tbl,
 	.probe		= cxgb4vf_pci_probe,
 	.remove		= __devexit_p(cxgb4vf_pci_remove),
+	.shutdown	= __devexit_p(cxgb4vf_pci_shutdown),
 };
 
 /*
@@ -2915,14 +2944,25 @@ static int __init cxgb4vf_module_init(void)
 {
 	int ret;
 
+	/*
+	 * Vet our module parameters.
+	 */
+	if (msi != MSI_MSIX && msi != MSI_MSI) {
+		printk(KERN_WARNING KBUILD_MODNAME
+		       ": bad module parameter msi=%d; must be %d"
+		       " (MSI-X or MSI) or %d (MSI)\n",
+		       msi, MSI_MSIX, MSI_MSI);
+		return -EINVAL;
+	}
+
 	/* Debugfs support is optional, just warn if this fails */
 	cxgb4vf_debugfs_root = debugfs_create_dir(KBUILD_MODNAME, NULL);
-	if (!cxgb4vf_debugfs_root)
+	if (IS_ERR_OR_NULL(cxgb4vf_debugfs_root))
 		printk(KERN_WARNING KBUILD_MODNAME ": could not create"
 		       " debugfs entry, continuing\n");
 
 	ret = pci_register_driver(&cxgb4vf_driver);
-	if (ret < 0)
+	if (ret < 0 && !IS_ERR_OR_NULL(cxgb4vf_debugfs_root))
 		debugfs_remove(cxgb4vf_debugfs_root);
 	return ret;
 }

drivers/net/cxgb4vf/t4vf_hw.c

@@ -171,7 +171,7 @@ int t4vf_wr_mbox_core(struct adapter *adapter, const void *cmd, int size,
 	delay_idx = 0;
 	ms = delay[0];
 
-	for (i = 0; i < 500; i += ms) {
+	for (i = 0; i < FW_CMD_MAX_TIMEOUT; i += ms) {
 		if (sleep_ok) {
 			ms = delay[delay_idx];
 			if (delay_idx < ARRAY_SIZE(delay) - 1)

drivers/net/e1000e/netdev.c

@@ -937,6 +937,9 @@ static void e1000_print_hw_hang(struct work_struct *work)
 	u16 phy_status, phy_1000t_status, phy_ext_status;
 	u16 pci_status;
 
+	if (test_bit(__E1000_DOWN, &adapter->state))
+		return;
+
 	e1e_rphy(hw, PHY_STATUS, &phy_status);
 	e1e_rphy(hw, PHY_1000T_STATUS, &phy_1000t_status);
 	e1e_rphy(hw, PHY_EXT_STATUS, &phy_ext_status);
@@ -1506,6 +1509,9 @@ static void e1000e_downshift_workaround(struct work_struct *work)
 	struct e1000_adapter *adapter = container_of(work,
 					struct e1000_adapter, downshift_task);
 
+	if (test_bit(__E1000_DOWN, &adapter->state))
+		return;
+
 	e1000e_gig_downshift_workaround_ich8lan(&adapter->hw);
 }
 
@@ -3338,6 +3344,21 @@ int e1000e_up(struct e1000_adapter *adapter)
 	return 0;
 }
 
+static void e1000e_flush_descriptors(struct e1000_adapter *adapter)
+{
+	struct e1000_hw *hw = &adapter->hw;
+
+	if (!(adapter->flags2 & FLAG2_DMA_BURST))
+		return;
+
+	/* flush pending descriptor writebacks to memory */
+	ew32(TIDV, adapter->tx_int_delay | E1000_TIDV_FPD);
+	ew32(RDTR, adapter->rx_int_delay | E1000_RDTR_FPD);
+
+	/* execute the writes immediately */
+	e1e_flush();
+}
+
 void e1000e_down(struct e1000_adapter *adapter)
 {
 	struct net_device *netdev = adapter->netdev;
@@ -3377,6 +3398,9 @@ void e1000e_down(struct e1000_adapter *adapter)
 
 	if (!pci_channel_offline(adapter->pdev))
 		e1000e_reset(adapter);
+
+	e1000e_flush_descriptors(adapter);
+
 	e1000_clean_tx_ring(adapter);
 	e1000_clean_rx_ring(adapter);
 
@@ -3765,6 +3789,10 @@ static void e1000e_update_phy_task(struct work_struct *work)
 {
 	struct e1000_adapter *adapter = container_of(work,
 					struct e1000_adapter, update_phy_task);
+
+	if (test_bit(__E1000_DOWN, &adapter->state))
+		return;
+
 	e1000_get_phy_info(&adapter->hw);
 }
 
@@ -3775,6 +3803,10 @@ static void e1000e_update_phy_task(struct work_struct *work)
 static void e1000_update_phy_info(unsigned long data)
 {
 	struct e1000_adapter *adapter = (struct e1000_adapter *) data;
+
+	if (test_bit(__E1000_DOWN, &adapter->state))
+		return;
+
 	schedule_work(&adapter->update_phy_task);
 }
 
@@ -4149,6 +4181,9 @@ static void e1000_watchdog_task(struct work_struct *work)
 	u32 link, tctl;
 	int tx_pending = 0;
 
+	if (test_bit(__E1000_DOWN, &adapter->state))
+		return;
+
 	link = e1000e_has_link(adapter);
 	if ((netif_carrier_ok(netdev)) && link) {
 		/* Cancel scheduled suspend requests. */
@@ -4337,19 +4372,12 @@ link_up:
 	else
 		ew32(ICS, E1000_ICS_RXDMT0);
 
+	/* flush pending descriptors to memory before detecting Tx hang */
+	e1000e_flush_descriptors(adapter);
+
 	/* Force detection of hung controller every watchdog period */
 	adapter->detect_tx_hung = 1;
 
-	/* flush partial descriptors to memory before detecting Tx hang */
-	if (adapter->flags2 & FLAG2_DMA_BURST) {
-		ew32(TIDV, adapter->tx_int_delay | E1000_TIDV_FPD);
-		ew32(RDTR, adapter->rx_int_delay | E1000_RDTR_FPD);
-		/*
-		 * no need to flush the writes because the timeout code does
-		 * an er32 first thing
-		 */
-	}
-
 	/*
 	 * With 82571 controllers, LAA may be overwritten due to controller
 	 * reset from the other port. Set the appropriate LAA in RAR[0]
@@ -4887,6 +4915,10 @@ static void e1000_reset_task(struct work_struct *work)
 	struct e1000_adapter *adapter;
 	adapter = container_of(work, struct e1000_adapter, reset_task);
 
+	/* don't run the task if already down */
+	if (test_bit(__E1000_DOWN, &adapter->state))
+		return;
+
 	if (!((adapter->flags & FLAG_RX_NEEDS_RESTART) &&
 	      (adapter->flags & FLAG_RX_RESTART_NOW))) {
 		e1000e_dump(adapter);

drivers/net/forcedeth.c

@@ -5645,6 +5645,8 @@ static int __devinit nv_probe(struct pci_dev *pci_dev, const struct pci_device_i
 		goto out_error;
 	}
 
+	netif_carrier_off(dev);
+
 	dev_info(&pci_dev->dev, "ifname %s, PHY OUI 0x%x @ %d, addr %pM\n",
 		 dev->name, np->phy_oui, np->phyaddr, dev->dev_addr);
 

drivers/net/ixgbe/ixgbe_fcoe.c

@@ -159,7 +159,7 @@ int ixgbe_fcoe_ddp_get(struct net_device *netdev, u16 xid,
 	struct scatterlist *sg;
 	unsigned int i, j, dmacount;
 	unsigned int len;
-	static const unsigned int bufflen = 4096;
+	static const unsigned int bufflen = IXGBE_FCBUFF_MIN;
 	unsigned int firstoff = 0;
 	unsigned int lastsize;
 	unsigned int thisoff = 0;
@@ -254,6 +254,24 @@ int ixgbe_fcoe_ddp_get(struct net_device *netdev, u16 xid,
 	/* only the last buffer may have non-full bufflen */
 	lastsize = thisoff + thislen;
 
+	/*
+	 * lastsize can not be buffer len.
+	 * If it is then adding another buffer with lastsize = 1.
+	 */
+	if (lastsize == bufflen) {
+		if (j >= IXGBE_BUFFCNT_MAX) {
+			e_err(drv, "xid=%x:%d,%d,%d:addr=%llx "
+				"not enough user buffers. We need an extra "
+				"buffer because lastsize is bufflen.\n",
+				xid, i, j, dmacount, (u64)addr);
+			goto out_noddp_free;
+		}
+
+		ddp->udl[j] = (u64)(fcoe->extra_ddp_buffer_dma);
+		j++;
+		lastsize = 1;
+	}
+
 	fcbuff = (IXGBE_FCBUFF_4KB << IXGBE_FCBUFF_BUFFSIZE_SHIFT);
 	fcbuff |= ((j & 0xff) << IXGBE_FCBUFF_BUFFCNT_SHIFT);
 	fcbuff |= (firstoff << IXGBE_FCBUFF_OFFSET_SHIFT);
@@ -532,6 +550,24 @@ void ixgbe_configure_fcoe(struct ixgbe_adapter *adapter)
 			e_err(drv, "failed to allocated FCoE DDP pool\n");
 
 		spin_lock_init(&fcoe->lock);
+
+		/* Extra buffer to be shared by all DDPs for HW work around */
+		fcoe->extra_ddp_buffer = kmalloc(IXGBE_FCBUFF_MIN, GFP_ATOMIC);
+		if (fcoe->extra_ddp_buffer == NULL) {
+			e_err(drv, "failed to allocated extra DDP buffer\n");
+			goto out_extra_ddp_buffer_alloc;
+		}
+
+		fcoe->extra_ddp_buffer_dma =
+			dma_map_single(&adapter->pdev->dev,
+				       fcoe->extra_ddp_buffer,
+				       IXGBE_FCBUFF_MIN,
+				       DMA_FROM_DEVICE);
+		if (dma_mapping_error(&adapter->pdev->dev,
+				      fcoe->extra_ddp_buffer_dma)) {
+			e_err(drv, "failed to map extra DDP buffer\n");
+			goto out_extra_ddp_buffer_dma;
+		}
 	}
 
 	/* Enable L2 eth type filter for FCoE */
@@ -581,6 +617,14 @@ void ixgbe_configure_fcoe(struct ixgbe_adapter *adapter)
 		}
 	}
 #endif
+
+	return;
+
+out_extra_ddp_buffer_dma:
+	kfree(fcoe->extra_ddp_buffer);
+out_extra_ddp_buffer_alloc:
+	pci_pool_destroy(fcoe->pool);
+	fcoe->pool = NULL;
 }
 
 /**
@@ -600,6 +644,11 @@ void ixgbe_cleanup_fcoe(struct ixgbe_adapter *adapter)
 	if (fcoe->pool) {
 		for (i = 0; i < IXGBE_FCOE_DDP_MAX; i++)
 			ixgbe_fcoe_ddp_put(adapter->netdev, i);
+		dma_unmap_single(&adapter->pdev->dev,
+				 fcoe->extra_ddp_buffer_dma,
+				 IXGBE_FCBUFF_MIN,
+				 DMA_FROM_DEVICE);
+		kfree(fcoe->extra_ddp_buffer);
 		pci_pool_destroy(fcoe->pool);
 		fcoe->pool = NULL;
 	}

drivers/net/ixgbe/ixgbe_fcoe.h

@@ -70,6 +70,8 @@ struct ixgbe_fcoe {
 	spinlock_t lock;
 	struct pci_pool *pool;
 	struct ixgbe_fcoe_ddp ddp[IXGBE_FCOE_DDP_MAX];
+	unsigned char *extra_ddp_buffer;
+	dma_addr_t extra_ddp_buffer_dma;
 };
 
 #endif /* _IXGBE_FCOE_H */

drivers/net/ixgbe/ixgbe_main.c

@@ -3728,7 +3728,8 @@ static void ixgbe_sfp_link_config(struct ixgbe_adapter *adapter)
 			 * We need to try and force an autonegotiation
 			 * session, then bring up link.
 			 */
-			hw->mac.ops.setup_sfp(hw);
+			if (hw->mac.ops.setup_sfp)
+				hw->mac.ops.setup_sfp(hw);
 			if (!(adapter->flags & IXGBE_FLAG_IN_SFP_LINK_TASK))
 				schedule_work(&adapter->multispeed_fiber_task);
 		} else {
@@ -5968,7 +5969,8 @@ static void ixgbe_sfp_config_module_task(struct work_struct *work)
 		unregister_netdev(adapter->netdev);
 		return;
 	}
-	hw->mac.ops.setup_sfp(hw);
+	if (hw->mac.ops.setup_sfp)
+		hw->mac.ops.setup_sfp(hw);
 
 	if (!(adapter->flags & IXGBE_FLAG_IN_SFP_LINK_TASK))
 		/* This will also work for DA Twinax connections */

drivers/net/pch_gbe/pch_gbe.h

@@ -73,7 +73,7 @@ struct pch_gbe_regs {
 	struct pch_gbe_regs_mac_adr mac_adr[16];
 	u32 ADDR_MASK;
 	u32 MIIM;
-	u32 reserve2;
+	u32 MAC_ADDR_LOAD;
 	u32 RGMII_ST;
 	u32 RGMII_CTRL;
 	u32 reserve3[3];

drivers/net/pch_gbe/pch_gbe_main.c

@@ -29,6 +29,7 @@ const char pch_driver_version[] = DRV_VERSION;
 #define PCH_GBE_SHORT_PKT		64
 #define DSC_INIT16			0xC000
 #define PCH_GBE_DMA_ALIGN		0
+#define PCH_GBE_DMA_PADDING		2
 #define PCH_GBE_WATCHDOG_PERIOD		(1 * HZ)	/* watchdog time */
 #define PCH_GBE_COPYBREAK_DEFAULT	256
 #define PCH_GBE_PCI_BAR			1
@@ -88,6 +89,12 @@ static unsigned int copybreak __read_mostly = PCH_GBE_COPYBREAK_DEFAULT;
 static int pch_gbe_mdio_read(struct net_device *netdev, int addr, int reg);
 static void pch_gbe_mdio_write(struct net_device *netdev, int addr, int reg,
 			       int data);
+
+inline void pch_gbe_mac_load_mac_addr(struct pch_gbe_hw *hw)
+{
+	iowrite32(0x01, &hw->reg->MAC_ADDR_LOAD);
+}
+
 /**
  * pch_gbe_mac_read_mac_addr - Read MAC address
  * @hw:	            Pointer to the HW structure
@@ -1365,16 +1372,13 @@ pch_gbe_clean_rx(struct pch_gbe_adapter *adapter,
 	struct pch_gbe_buffer *buffer_info;
 	struct pch_gbe_rx_desc *rx_desc;
 	u32 length;
-	unsigned char tmp_packet[ETH_HLEN];
 	unsigned int i;
 	unsigned int cleaned_count = 0;
 	bool cleaned = false;
-	struct sk_buff *skb;
+	struct sk_buff *skb, *new_skb;
 	u8 dma_status;
 	u16 gbec_status;
 	u32 tcp_ip_status;
-	u8 skb_copy_flag = 0;
-	u8 skb_padding_flag = 0;
 
 	i = rx_ring->next_to_clean;
 
@@ -1418,55 +1422,70 @@ pch_gbe_clean_rx(struct pch_gbe_adapter *adapter,
 			pr_err("Receive CRC Error\n");
 		} else {
 			/* get receive length */
-			/* length convert[-3], padding[-2] */
-			length = (rx_desc->rx_words_eob) - 3 - 2;
+			/* length convert[-3] */
+			length = (rx_desc->rx_words_eob) - 3;
 
 			/* Decide the data conversion method */
 			if (!adapter->rx_csum) {
 				/* [Header:14][payload] */
-				skb_padding_flag = 0;
-				skb_copy_flag = 1;
+				if (NET_IP_ALIGN) {
+					/* Because alignment differs,
+					 * the new_skb is newly allocated,
+					 * and data is copied to new_skb.*/
+					new_skb = netdev_alloc_skb(netdev,
+							 length + NET_IP_ALIGN);
+					if (!new_skb) {
+						/* dorrop error */
+						pr_err("New skb allocation "
+							"Error\n");
+						goto dorrop;
+					}
+					skb_reserve(new_skb, NET_IP_ALIGN);
+					memcpy(new_skb->data, skb->data,
+					       length);
+					skb = new_skb;
+				} else {
+					/* DMA buffer is used as SKB as it is.*/
+					buffer_info->skb = NULL;
+				}
 			} else {
 				/* [Header:14][padding:2][payload] */
-				skb_padding_flag = 1;
-				if (length < copybreak)
-					skb_copy_flag = 1;
-				else
-					skb_copy_flag = 0;
-			}
-
-			/* Data conversion */
-			if (skb_copy_flag) {	/* recycle  skb */
-				struct sk_buff *new_skb;
-				new_skb =
-				    netdev_alloc_skb(netdev,
-						     length + NET_IP_ALIGN);
-				if (new_skb) {
-					if (!skb_padding_flag) {
-						skb_reserve(new_skb,
-								NET_IP_ALIGN);
+				/* The length includes padding length */
+				length = length - PCH_GBE_DMA_PADDING;
+				if ((length < copybreak) ||
+				    (NET_IP_ALIGN != PCH_GBE_DMA_PADDING)) {
+					/* Because alignment differs,
+					 * the new_skb is newly allocated,
+					 * and data is copied to new_skb.
+					 * Padding data is deleted
+					 * at the time of a copy.*/
+					new_skb = netdev_alloc_skb(netdev,
+							 length + NET_IP_ALIGN);
+					if (!new_skb) {
+						/* dorrop error */
+						pr_err("New skb allocation "
+							"Error\n");
+						goto dorrop;
 					}
+					skb_reserve(new_skb, NET_IP_ALIGN);
 					memcpy(new_skb->data, skb->data,
-						length);
-					/* save the skb
-					 * in buffer_info as good */
+					       ETH_HLEN);
+					memcpy(&new_skb->data[ETH_HLEN],
+					       &skb->data[ETH_HLEN +
+					       PCH_GBE_DMA_PADDING],
+					       length - ETH_HLEN);
 					skb = new_skb;
-				} else if (!skb_padding_flag) {
-					/* dorrop error */
-					pr_err("New skb allocation Error\n");
-					goto dorrop;
+				} else {
+					/* Padding data is deleted
+					 * by moving header data.*/
+					memmove(&skb->data[PCH_GBE_DMA_PADDING],
+						&skb->data[0], ETH_HLEN);
+					skb_reserve(skb, NET_IP_ALIGN);
+					buffer_info->skb = NULL;
 				}
-			} else {
-				buffer_info->skb = NULL;
 			}
-			if (skb_padding_flag) {
-				memcpy(&tmp_packet[0], &skb->data[0], ETH_HLEN);
-				memcpy(&skb->data[NET_IP_ALIGN], &tmp_packet[0],
-					ETH_HLEN);
-				skb_reserve(skb, NET_IP_ALIGN);
-
-			}
-
+			/* The length includes FCS length */
+			length = length - ETH_FCS_LEN;
 			/* update status of driver */
 			adapter->stats.rx_bytes += length;
 			adapter->stats.rx_packets++;
@@ -2318,6 +2337,7 @@ static int pch_gbe_probe(struct pci_dev *pdev,
 	netdev->features = NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_GRO;
 	pch_gbe_set_ethtool_ops(netdev);
 
+	pch_gbe_mac_load_mac_addr(&adapter->hw);
 	pch_gbe_mac_reset_hw(&adapter->hw);
 
 	/* setup the private structure */

drivers/net/r8169.c

@@ -3190,6 +3190,8 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 	if (pci_dev_run_wake(pdev))
 		pm_runtime_put_noidle(&pdev->dev);
 
+	netif_carrier_off(dev);
+
 out:
 	return rc;
 

drivers/net/stmmac/stmmac_main.c

@@ -1560,8 +1560,10 @@ static int stmmac_mac_device_setup(struct net_device *dev)
 
 	priv->hw = device;
 
-	if (device_can_wakeup(priv->device))
+	if (device_can_wakeup(priv->device)) {
 		priv->wolopts = WAKE_MAGIC; /* Magic Frame as default */
+		enable_irq_wake(dev->irq);
+	}
 
 	return 0;
 }

drivers/net/tg3.c

@@ -11158,7 +11158,9 @@ static int tg3_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 		if (tp->phy_flags & TG3_PHYFLG_PHY_SERDES)
 			break;			/* We have no PHY */
 
-		if (tp->phy_flags & TG3_PHYFLG_IS_LOW_POWER)
+		if ((tp->phy_flags & TG3_PHYFLG_IS_LOW_POWER) ||
+		    ((tp->tg3_flags & TG3_FLAG_ENABLE_ASF) &&
+		     !netif_running(dev)))
 			return -EAGAIN;
 
 		spin_lock_bh(&tp->lock);
@@ -11174,7 +11176,9 @@ static int tg3_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 		if (tp->phy_flags & TG3_PHYFLG_PHY_SERDES)
 			break;			/* We have no PHY */
 
-		if (tp->phy_flags & TG3_PHYFLG_IS_LOW_POWER)
+		if ((tp->phy_flags & TG3_PHYFLG_IS_LOW_POWER) ||
+		    ((tp->tg3_flags & TG3_FLAG_ENABLE_ASF) &&
+		     !netif_running(dev)))
 			return -EAGAIN;
 
 		spin_lock_bh(&tp->lock);

drivers/net/usb/hso.c

@@ -2628,15 +2628,15 @@ exit:
 
 static void hso_free_tiomget(struct hso_serial *serial)
 {
-	struct hso_tiocmget *tiocmget = serial->tiocmget;
+	struct hso_tiocmget *tiocmget;
+	if (!serial)
+		return;
+	tiocmget = serial->tiocmget;
 	if (tiocmget) {
-		if (tiocmget->urb) {
-			usb_free_urb(tiocmget->urb);
-			tiocmget->urb = NULL;
-		}
+		usb_free_urb(tiocmget->urb);
+		tiocmget->urb = NULL;
 		serial->tiocmget = NULL;
 		kfree(tiocmget);
-
 	}
 }
 

drivers/net/usb/usbnet.c

@@ -931,8 +931,10 @@ fail_halt:
 		if (urb != NULL) {
 			clear_bit (EVENT_RX_MEMORY, &dev->flags);
 			status = usb_autopm_get_interface(dev->intf);
-			if (status < 0)
+			if (status < 0) {
+				usb_free_urb(urb);
 				goto fail_lowmem;
+			}
 			if (rx_submit (dev, urb, GFP_KERNEL) == -ENOLINK)
 				resched = 0;
 			usb_autopm_put_interface(dev->intf);

drivers/net/wireless/iwlwifi/iwl-3945.c

@@ -402,72 +402,6 @@ static void iwl3945_accumulative_statistics(struct iwl_priv *priv,
 }
 #endif
 
-/**
- * iwl3945_good_plcp_health - checks for plcp error.
- *
- * When the plcp error is exceeding the thresholds, reset the radio
- * to improve the throughput.
- */
-static bool iwl3945_good_plcp_health(struct iwl_priv *priv,
-				struct iwl_rx_packet *pkt)
-{
-	bool rc = true;
-	struct iwl3945_notif_statistics current_stat;
-	int combined_plcp_delta;
-	unsigned int plcp_msec;
-	unsigned long plcp_received_jiffies;
-
-	if (priv->cfg->base_params->plcp_delta_threshold ==
-	    IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE) {
-		IWL_DEBUG_RADIO(priv, "plcp_err check disabled\n");
-		return rc;
-	}
-	memcpy(&current_stat, pkt->u.raw, sizeof(struct
-			iwl3945_notif_statistics));
-	/*
-	 * check for plcp_err and trigger radio reset if it exceeds
-	 * the plcp error threshold plcp_delta.
-	 */
-	plcp_received_jiffies = jiffies;
-	plcp_msec = jiffies_to_msecs((long) plcp_received_jiffies -
-					(long) priv->plcp_jiffies);
-	priv->plcp_jiffies = plcp_received_jiffies;
-	/*
-	 * check to make sure plcp_msec is not 0 to prevent division
-	 * by zero.
-	 */
-	if (plcp_msec) {
-		combined_plcp_delta =
-			(le32_to_cpu(current_stat.rx.ofdm.plcp_err) -
-			le32_to_cpu(priv->_3945.statistics.rx.ofdm.plcp_err));
-
-		if ((combined_plcp_delta > 0) &&
-			((combined_plcp_delta * 100) / plcp_msec) >
-			priv->cfg->base_params->plcp_delta_threshold) {
-			/*
-			 * if plcp_err exceed the threshold, the following
-			 * data is printed in csv format:
-			 *    Text: plcp_err exceeded %d,
-			 *    Received ofdm.plcp_err,
-			 *    Current ofdm.plcp_err,
-			 *    combined_plcp_delta,
-			 *    plcp_msec
-			 */
-			IWL_DEBUG_RADIO(priv, "plcp_err exceeded %u, "
-				"%u, %d, %u mSecs\n",
-				priv->cfg->base_params->plcp_delta_threshold,
-				le32_to_cpu(current_stat.rx.ofdm.plcp_err),
-				combined_plcp_delta, plcp_msec);
-			/*
-			 * Reset the RF radio due to the high plcp
-			 * error rate
-			 */
-			rc = false;
-		}
-	}
-	return rc;
-}
-
 void iwl3945_hw_rx_statistics(struct iwl_priv *priv,
 		struct iwl_rx_mem_buffer *rxb)
 {
@@ -2734,7 +2668,6 @@ static struct iwl_lib_ops iwl3945_lib = {
 	.isr_ops = {
 		.isr = iwl_isr_legacy,
 	},
-	.check_plcp_health = iwl3945_good_plcp_health,
 
 	.debugfs_ops = {
 		.rx_stats_read = iwl3945_ucode_rx_stats_read,

net/bluetooth/l2cap.c

@@ -859,6 +859,7 @@ static void __l2cap_sock_close(struct sock *sk, int reason)
 				result = L2CAP_CR_SEC_BLOCK;
 			else
 				result = L2CAP_CR_BAD_PSM;
+			sk->sk_state = BT_DISCONN;
 
 			rsp.scid   = cpu_to_le16(l2cap_pi(sk)->dcid);
 			rsp.dcid   = cpu_to_le16(l2cap_pi(sk)->scid);

net/bridge/br_input.c

@@ -80,7 +80,7 @@ int br_handle_frame_finish(struct sk_buff *skb)
 	if (is_multicast_ether_addr(dest)) {
 		mdst = br_mdb_get(br, skb);
 		if (mdst || BR_INPUT_SKB_CB_MROUTERS_ONLY(skb)) {
-			if ((mdst && !hlist_unhashed(&mdst->mglist)) ||
+			if ((mdst && mdst->mglist) ||
 			    br_multicast_is_router(br))
 				skb2 = skb;
 			br_multicast_forward(mdst, skb, skb2);

net/bridge/br_multicast.c

@@ -232,8 +232,7 @@ static void br_multicast_group_expired(unsigned long data)
 	if (!netif_running(br->dev) || timer_pending(&mp->timer))
 		goto out;
 
-	if (!hlist_unhashed(&mp->mglist))
-		hlist_del_init(&mp->mglist);
+	mp->mglist = false;
 
 	if (mp->ports)
 		goto out;
@@ -276,7 +275,7 @@ static void br_multicast_del_pg(struct net_bridge *br,
 		del_timer(&p->query_timer);
 		call_rcu_bh(&p->rcu, br_multicast_free_pg);
 
-		if (!mp->ports && hlist_unhashed(&mp->mglist) &&
+		if (!mp->ports && !mp->mglist &&
 		    netif_running(br->dev))
 			mod_timer(&mp->timer, jiffies);
 
@@ -528,7 +527,7 @@ static void br_multicast_group_query_expired(unsigned long data)
 	struct net_bridge *br = mp->br;
 
 	spin_lock(&br->multicast_lock);
-	if (!netif_running(br->dev) || hlist_unhashed(&mp->mglist) ||
+	if (!netif_running(br->dev) || !mp->mglist ||
 	    mp->queries_sent >= br->multicast_last_member_count)
 		goto out;
 
@@ -719,7 +718,7 @@ static int br_multicast_add_group(struct net_bridge *br,
 		goto err;
 
 	if (!port) {
-		hlist_add_head(&mp->mglist, &br->mglist);
+		mp->mglist = true;
 		mod_timer(&mp->timer, now + br->multicast_membership_interval);
 		goto out;
 	}
@@ -1165,7 +1164,7 @@ static int br_ip4_multicast_query(struct net_bridge *br,
 
 	max_delay *= br->multicast_last_member_count;
 
-	if (!hlist_unhashed(&mp->mglist) &&
+	if (mp->mglist &&
 	    (timer_pending(&mp->timer) ?
 	     time_after(mp->timer.expires, now + max_delay) :
 	     try_to_del_timer_sync(&mp->timer) >= 0))
@@ -1177,7 +1176,7 @@ static int br_ip4_multicast_query(struct net_bridge *br,
 		if (timer_pending(&p->timer) ?
 		    time_after(p->timer.expires, now + max_delay) :
 		    try_to_del_timer_sync(&p->timer) >= 0)
-			mod_timer(&mp->timer, now + max_delay);
+			mod_timer(&p->timer, now + max_delay);
 	}
 
 out:
@@ -1236,7 +1235,7 @@ static int br_ip6_multicast_query(struct net_bridge *br,
 		goto out;
 
 	max_delay *= br->multicast_last_member_count;
-	if (!hlist_unhashed(&mp->mglist) &&
+	if (mp->mglist &&
 	    (timer_pending(&mp->timer) ?
 	     time_after(mp->timer.expires, now + max_delay) :
 	     try_to_del_timer_sync(&mp->timer) >= 0))
@@ -1248,7 +1247,7 @@ static int br_ip6_multicast_query(struct net_bridge *br,
 		if (timer_pending(&p->timer) ?
 		    time_after(p->timer.expires, now + max_delay) :
 		    try_to_del_timer_sync(&p->timer) >= 0)
-			mod_timer(&mp->timer, now + max_delay);
+			mod_timer(&p->timer, now + max_delay);
 	}
 
 out:
@@ -1283,7 +1282,7 @@ static void br_multicast_leave_group(struct net_bridge *br,
 		     br->multicast_last_member_interval;
 
 	if (!port) {
-		if (!hlist_unhashed(&mp->mglist) &&
+		if (mp->mglist &&
 		    (timer_pending(&mp->timer) ?
 		     time_after(mp->timer.expires, time) :
 		     try_to_del_timer_sync(&mp->timer) >= 0)) {

net/bridge/br_private.h

@@ -84,13 +84,13 @@ struct net_bridge_port_group {
 struct net_bridge_mdb_entry
 {
 	struct hlist_node		hlist[2];
-	struct hlist_node		mglist;
 	struct net_bridge		*br;
 	struct net_bridge_port_group __rcu *ports;
 	struct rcu_head			rcu;
 	struct timer_list		timer;
 	struct timer_list		query_timer;
 	struct br_ip			addr;
+	bool				mglist;
 	u32				queries_sent;
 };
 
@@ -238,7 +238,6 @@ struct net_bridge
 	spinlock_t			multicast_lock;
 	struct net_bridge_mdb_htable __rcu *mdb;
 	struct hlist_head		router_list;
-	struct hlist_head		mglist;
 
 	struct timer_list		multicast_router_timer;
 	struct timer_list		multicast_querier_timer;

net/core/dev.c

@@ -1280,10 +1280,13 @@ static int __dev_close_many(struct list_head *head)
 
 static int __dev_close(struct net_device *dev)
 {
+	int retval;
 	LIST_HEAD(single);
 
 	list_add(&dev->unreg_list, &single);
-	return __dev_close_many(&single);
+	retval = __dev_close_many(&single);
+	list_del(&single);
+	return retval;
 }
 
 int dev_close_many(struct list_head *head)
@@ -1325,7 +1328,7 @@ int dev_close(struct net_device *dev)
 
 	list_add(&dev->unreg_list, &single);
 	dev_close_many(&single);
-
+	list_del(&single);
 	return 0;
 }
 EXPORT_SYMBOL(dev_close);
@@ -5063,6 +5066,7 @@ static void rollback_registered(struct net_device *dev)
 
 	list_add(&dev->unreg_list, &single);
 	rollback_registered_many(&single);
+	list_del(&single);
 }
 
 unsigned long netdev_fix_features(unsigned long features, const char *name)
@@ -6216,6 +6220,7 @@ static void __net_exit default_device_exit_batch(struct list_head *net_list)
 		}
 	}
 	unregister_netdevice_many(&dev_kill_list);
+	list_del(&dev_kill_list);
 	rtnl_unlock();
 }
 

net/dcb/dcbnl.c

@@ -626,6 +626,9 @@ static int dcbnl_getapp(struct net_device *netdev, struct nlattr **tb,
 	dcb->cmd = DCB_CMD_GAPP;
 
 	app_nest = nla_nest_start(dcbnl_skb, DCB_ATTR_APP);
+	if (!app_nest)
+		goto out_cancel;
+
 	ret = nla_put_u8(dcbnl_skb, DCB_APP_ATTR_IDTYPE, idtype);
 	if (ret)
 		goto out_cancel;
@@ -1613,6 +1616,10 @@ EXPORT_SYMBOL(dcb_getapp);
 u8 dcb_setapp(struct net_device *dev, struct dcb_app *new)
 {
 	struct dcb_app_type *itr;
+	struct dcb_app_type event;
+
+	memcpy(&event.name, dev->name, sizeof(event.name));
+	memcpy(&event.app, new, sizeof(event.app));
 
 	spin_lock(&dcb_lock);
 	/* Search for existing match and replace */
@@ -1644,7 +1651,7 @@ u8 dcb_setapp(struct net_device *dev, struct dcb_app *new)
 	}
 out:
 	spin_unlock(&dcb_lock);
-	call_dcbevent_notifiers(DCB_APP_EVENT, new);
+	call_dcbevent_notifiers(DCB_APP_EVENT, &event);
 	return 0;
 }
 EXPORT_SYMBOL(dcb_setapp);

net/ipv4/devinet.c

@@ -1030,6 +1030,21 @@ static inline bool inetdev_valid_mtu(unsigned mtu)
 	return mtu >= 68;
 }
 
+static void inetdev_send_gratuitous_arp(struct net_device *dev,
+					struct in_device *in_dev)
+
+{
+	struct in_ifaddr *ifa = in_dev->ifa_list;
+
+	if (!ifa)
+		return;
+
+	arp_send(ARPOP_REQUEST, ETH_P_ARP,
+		 ifa->ifa_address, dev,
+		 ifa->ifa_address, NULL,
+		 dev->dev_addr, NULL);
+}
+
 /* Called only under RTNL semaphore */
 
 static int inetdev_event(struct notifier_block *this, unsigned long event,
@@ -1082,18 +1097,13 @@ static int inetdev_event(struct notifier_block *this, unsigned long event,
 		}
 		ip_mc_up(in_dev);
 		/* fall through */
-	case NETDEV_NOTIFY_PEERS:
 	case NETDEV_CHANGEADDR:
+		if (!IN_DEV_ARP_NOTIFY(in_dev))
+			break;
+		/* fall through */
+	case NETDEV_NOTIFY_PEERS:
 		/* Send gratuitous ARP to notify of link change */
-		if (IN_DEV_ARP_NOTIFY(in_dev)) {
-			struct in_ifaddr *ifa = in_dev->ifa_list;
-
-			if (ifa)
-				arp_send(ARPOP_REQUEST, ETH_P_ARP,
-					 ifa->ifa_address, dev,
-					 ifa->ifa_address, NULL,
-					 dev->dev_addr, NULL);
-		}
+		inetdev_send_gratuitous_arp(dev, in_dev);
 		break;
 	case NETDEV_DOWN:
 		ip_mc_down(in_dev);

net/ipv4/ip_gre.c

@@ -775,6 +775,7 @@ static netdev_tx_t ipgre_tunnel_xmit(struct sk_buff *skb, struct net_device *dev
 			.fl4_dst = dst,
 			.fl4_src = tiph->saddr,
 			.fl4_tos = RT_TOS(tos),
+			.proto = IPPROTO_GRE,
 			.fl_gre_key = tunnel->parms.o_key
 		};
 		if (ip_route_output_key(dev_net(dev), &rt, &fl)) {

net/ipv4/route.c

@@ -2722,6 +2722,7 @@ static struct dst_ops ipv4_dst_blackhole_ops = {
 	.destroy		=	ipv4_dst_destroy,
 	.check			=	ipv4_blackhole_dst_check,
 	.default_mtu		=	ipv4_blackhole_default_mtu,
+	.default_advmss		=	ipv4_default_advmss,
 	.update_pmtu		=	ipv4_rt_blackhole_update_pmtu,
 };
 

net/ipv6/route.c

@@ -128,6 +128,7 @@ static struct dst_ops ip6_dst_blackhole_ops = {
 	.destroy		=	ip6_dst_destroy,
 	.check			=	ip6_dst_check,
 	.default_mtu		=	ip6_blackhole_default_mtu,
+	.default_advmss		=	ip6_default_advmss,
 	.update_pmtu		=	ip6_rt_blackhole_update_pmtu,
 };
 

net/mac80211/util.c

@@ -1210,7 +1210,9 @@ int ieee80211_reconfig(struct ieee80211_local *local)
 		switch (sdata->vif.type) {
 		case NL80211_IFTYPE_STATION:
 			changed |= BSS_CHANGED_ASSOC;
+			mutex_lock(&sdata->u.mgd.mtx);
 			ieee80211_bss_info_change_notify(sdata, changed);
+			mutex_unlock(&sdata->u.mgd.mtx);
 			break;
 		case NL80211_IFTYPE_ADHOC:
 			changed |= BSS_CHANGED_IBSS;

net/netfilter/core.c

@@ -133,6 +133,7 @@ unsigned int nf_iterate(struct list_head *head,
 
 		/* Optimization: we don't need to hold module
 		   reference here, since function can't sleep. --RR */
+repeat:
 		verdict = elem->hook(hook, skb, indev, outdev, okfn);
 		if (verdict != NF_ACCEPT) {
 #ifdef CONFIG_NETFILTER_DEBUG
@@ -145,7 +146,7 @@ unsigned int nf_iterate(struct list_head *head,
 #endif
 			if (verdict != NF_REPEAT)
 				return verdict;
-			*i = (*i)->prev;
+			goto repeat;
 		}
 	}
 	return NF_ACCEPT;

net/xfrm/xfrm_policy.c

@@ -1340,10 +1340,13 @@ static inline struct xfrm_dst *xfrm_alloc_dst(struct net *net, int family)
 	default:
 		BUG();
 	}
-	xdst = dst_alloc(dst_ops) ?: ERR_PTR(-ENOBUFS);
+	xdst = dst_alloc(dst_ops);
 	xfrm_policy_put_afinfo(afinfo);
 
-	xdst->flo.ops = &xfrm_bundle_fc_ops;
+	if (likely(xdst))
+		xdst->flo.ops = &xfrm_bundle_fc_ops;
+	else
+		xdst = ERR_PTR(-ENOBUFS);
 
 	return xdst;
 }