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: (33 commits)
af_unix: netns: fix problem of return value
IRDA: remove double inclusion of module.h
udp: multicast packets need to check namespace
net: add documentation for skb recycling
key: fix setkey(8) policy set breakage
bpa10x: free sk_buff with kfree_skb
xfrm: do not leak ESRCH to user space
net: Really remove all of LOOPBACK_TSO code.
netfilter: nf_conntrack_proto_gre: switch to register_pernet_gen_subsys()
netns: add register_pernet_gen_subsys/unregister_pernet_gen_subsys
net: delete excess kernel-doc notation
pppoe: Fix socket leak.
gianfar: Don't reset TBI<->SerDes link if it's already up
gianfar: Fix race in TBI/SerDes configuration
at91_ether: request/free GPIO for PHY interrupt
amd8111e: fix dma_free_coherent context
atl1: fix vlan tag regression
SMC91x: delete unused local variable "lp"
myri10ge: fix stop/go mmio ordering
bonding: fix panic when taking bond interface down before removing module
...

MAINTAINERS

···
 M:	[e-mail]
 P:	Luis R. Rodriguez
 M:	[e-mail]
+P:	Bob Copeland
+M:	[e-mail]
 L:	[e-mail]
 L:	[e-mail]
 S:	Maintained

arch/powerpc/sysdev/fsl_soc.c

···
 	if (ret)
 		return ret;
 
+	/* The gianfar device will try to use the same ID created below to find
+	 * this bus, to coordinate register access (since they share).  */
 	mdio_dev = platform_device_register_simple("fsl-gianfar_mdio",
 			res.start&0xfffff, &res, 1);
 	if (IS_ERR(mdio_dev))
···
 
 			of_node_put(phy);
 			of_node_put(mdio);
+		}
+
+		/* Get MDIO bus controlled by this eTSEC, if any.  Normally only
+		 * eTSEC 1 will control an MDIO bus, not necessarily the same
+		 * bus that its PHY is on ('mdio' above), so we can't just use
+		 * that.  What we do is look for a gianfar mdio device that has
+		 * overlapping registers with this device.  That's really the
+		 * whole point, to find the device sharing our registers to
+		 * coordinate access with it.
+		 */
+		for_each_compatible_node(mdio, NULL, "fsl,gianfar-mdio") {
+			if (of_address_to_resource(mdio, 0, &res))
+				continue;
+
+			if (res.start >= r[0].start && res.end <= r[0].end) {
+				/* Get the ID the mdio bus platform device was
+				 * registered with.  gfar_data.bus_id is
+				 * different because it's for finding a PHY,
+				 * while this is for finding a MII bus.
+				 */
+				gfar_data.mdio_bus = res.start&0xfffff;
+				of_node_put(mdio);
+				break;
+			}
 		}
 
 		ret =

drivers/bluetooth/bpa10x.c

···
 
 	BT_DBG("%s", hdev->name);
 
-	kfree(data->rx_skb[0]);
-	kfree(data->rx_skb[1]);
+	kfree_skb(data->rx_skb[0]);
+	kfree_skb(data->rx_skb[1]);
 	kfree(data);
 }
 

drivers/net/amd8111e.c

···
 */
 static void amd8111e_free_ring(struct amd8111e_priv* lp)
 {
-
-	/* Free transmit and receive skbs */
-	amd8111e_free_skbs(lp->amd8111e_net_dev);
-
 	/* Free transmit and receive descriptor rings */
 	if(lp->rx_ring){
 		pci_free_consistent(lp->pci_dev,
···
 
 	amd8111e_disable_interrupt(lp);
 	amd8111e_stop_chip(lp);
-	amd8111e_free_ring(lp);
+
+	/* Free transmit and receive skbs */
+	amd8111e_free_skbs(lp->amd8111e_net_dev);
 
 	netif_carrier_off(lp->amd8111e_net_dev);
 
···
 
 	spin_unlock_irq(&lp->lock);
 	free_irq(dev->irq, dev);
+	amd8111e_free_ring(lp);
 
 	/* Update the statistics before closing */
 	amd8111e_get_stats(dev);

drivers/net/arm/at91_ether.c

···
 		init_timer(&lp->check_timer);
 		lp->check_timer.data = (unsigned long)dev;
 		lp->check_timer.function = at91ether_check_link;
-	}
+	} else if (lp->board_data.phy_irq_pin >= 32)
+		gpio_request(lp->board_data.phy_irq_pin, "ethernet_phy");
 
 	/* Display ethernet banner */
 	printk(KERN_INFO "%s: AT91 ethernet at 0x%08x int=%d %s%s (%s)\n",
···
 {
 	struct net_device *dev = platform_get_drvdata(pdev);
 	struct at91_private *lp = netdev_priv(dev);
+
+	if (lp->board_data.phy_irq_pin >= 32)
+		gpio_free(lp->board_data.phy_irq_pin);
 
 	unregister_netdev(dev);
 	free_irq(dev->irq, dev);

drivers/net/atlx/atl1.c

···
 		if (tpd != ptpd)
 			memcpy(tpd, ptpd, sizeof(struct tx_packet_desc));
 		tpd->buffer_addr = cpu_to_le64(buffer_info->dma);
-		tpd->word2 = (cpu_to_le16(buffer_info->length) &
+		tpd->word2 &= ~(TPD_BUFLEN_MASK << TPD_BUFLEN_SHIFT);
+		tpd->word2 |= (cpu_to_le16(buffer_info->length) &
 			TPD_BUFLEN_MASK) << TPD_BUFLEN_SHIFT;
 
 		/*
···
 		vlan_tag = (vlan_tag << 4) | (vlan_tag >> 13) |
 			((vlan_tag >> 9) & 0x8);
 		ptpd->word3 |= 1 << TPD_INS_VL_TAG_SHIFT;
-		ptpd->word3 |= (vlan_tag & TPD_VL_TAGGED_MASK) <<
-			TPD_VL_TAGGED_SHIFT;
+		ptpd->word2 |= (vlan_tag & TPD_VLANTAG_MASK) <<
+			TPD_VLANTAG_SHIFT;
 	}
 
 	tso = atl1_tso(adapter, skb, ptpd);

drivers/net/atlx/atl1.h

···
 #define TPD_PKTNT_MASK		0x0001
 #define TPD_PKTINT_SHIFT	15
 #define TPD_VLANTAG_MASK	0xFFFF
-#define TPD_VLAN_SHIFT		16
+#define TPD_VLANTAG_SHIFT	16
 
 /* tpd word 3 bits 0:13 */
 #define TPD_EOP_MASK		0x0001

drivers/net/bonding/bond_alb.c

···
 	/* clear slave from tx_hashtbl */
 	tx_hash_table = BOND_ALB_INFO(bond).tx_hashtbl;
 
-	index = SLAVE_TLB_INFO(slave).head;
-	while (index != TLB_NULL_INDEX) {
-		u32 next_index = tx_hash_table[index].next;
-		tlb_init_table_entry(&tx_hash_table[index], save_load);
-		index = next_index;
+	/* skip this if we've already freed the tx hash table */
+	if (tx_hash_table) {
+		index = SLAVE_TLB_INFO(slave).head;
+		while (index != TLB_NULL_INDEX) {
+			u32 next_index = tx_hash_table[index].next;
+			tlb_init_table_entry(&tx_hash_table[index], save_load);
+			index = next_index;
+		}
 	}
 
 	tlb_init_slave(slave);

drivers/net/bonding/bond_main.c

···
 	unregister_netdevice(bond->dev);
 }
 
+static void bond_destructor(struct net_device *bond_dev)
+{
+	struct bonding *bond = bond_dev->priv;
+
+	if (bond->wq)
+		destroy_workqueue(bond->wq);
+
+	netif_addr_lock_bh(bond_dev);
+	bond_mc_list_destroy(bond);
+	netif_addr_unlock_bh(bond_dev);
+
+	free_netdev(bond_dev);
+}
+
 /*
 * First release a slave and than destroy the bond if no more slaves iare left.
 * Must be under rtnl_lock when this function is called.
···
 			continue;
 
 		case BOND_LINK_DOWN:
+			if (slave->link_failure_count < UINT_MAX)
+				slave->link_failure_count++;
+
 			slave->link = BOND_LINK_DOWN;
 
 			if (bond->params.mode == BOND_MODE_ACTIVEBACKUP ||
···
 
 	bond_set_mode_ops(bond, bond->params.mode);
 
-	bond_dev->destructor = free_netdev;
+	bond_dev->destructor = bond_destructor;
 
 	/* Initialize the device options */
 	bond_dev->tx_queue_len = 0;
···
 	return 0;
 }
 
-/* De-initialize device specific data.
- * Caller must hold rtnl_lock.
- */
-static void bond_deinit(struct net_device *bond_dev)
-{
-	struct bonding *bond = bond_dev->priv;
-
-	list_del(&bond->bond_list);
-
-#ifdef CONFIG_PROC_FS
-	bond_remove_proc_entry(bond);
-#endif
-}
-
 static void bond_work_cancel_all(struct bonding *bond)
 {
 	write_lock_bh(&bond->lock);
···
 		cancel_delayed_work(&bond->ad_work);
 }
 
+/* De-initialize device specific data.
+ * Caller must hold rtnl_lock.
+ */
+static void bond_deinit(struct net_device *bond_dev)
+{
+	struct bonding *bond = bond_dev->priv;
+
+	list_del(&bond->bond_list);
+
+	bond_work_cancel_all(bond);
+
+#ifdef CONFIG_PROC_FS
+	bond_remove_proc_entry(bond);
+#endif
+}
+
 /* Unregister and free all bond devices.
  * Caller must hold rtnl_lock.
  */
···
 		struct net_device *bond_dev = bond->dev;
 
 		bond_work_cancel_all(bond);
-		netif_addr_lock_bh(bond_dev);
-		bond_mc_list_destroy(bond);
-		netif_addr_unlock_bh(bond_dev);
 		/* Release the bonded slaves */
 		bond_release_all(bond_dev);
 		bond_destroy(bond);

drivers/net/gianfar.c

···
 	struct gfar_mii __iomem *regs =
 			(void __iomem *)&priv->regs->gfar_mii_regs;
 	int tbipa = gfar_read(&priv->regs->tbipa);
+	struct mii_bus *bus = gfar_get_miibus(priv);
+
+	if (bus)
+		mutex_lock(&bus->mdio_lock);
+
+	/* If the link is already up, we must already be ok, and don't need to
+	 * configure and reset the TBI<->SerDes link.  Maybe U-Boot configured
+	 * everything for us?  Resetting it takes the link down and requires
+	 * several seconds for it to come back.
+	 */
+	if (gfar_local_mdio_read(regs, tbipa, MII_BMSR) & BMSR_LSTATUS)
+		goto done;
 
 	/* Single clk mode, mii mode off(for serdes communication) */
 	gfar_local_mdio_write(regs, tbipa, MII_TBICON, TBICON_CLK_SELECT);
···
 
 	gfar_local_mdio_write(regs, tbipa, MII_BMCR, BMCR_ANENABLE |
 			BMCR_ANRESTART | BMCR_FULLDPLX | BMCR_SPEED1000);
+
+	done:
+	if (bus)
+		mutex_unlock(&bus->mdio_lock);
 }
 
 static void init_registers(struct net_device *dev)

drivers/net/gianfar_mii.c

···
 	.remove = gfar_mdio_remove,
 };
 
+static int match_mdio_bus(struct device *dev, void *data)
+{
+	const struct gfar_private *priv = data;
+	const struct platform_device *pdev = to_platform_device(dev);
+
+	return !strcmp(pdev->name, gianfar_mdio_driver.name) &&
+		pdev->id == priv->einfo->mdio_bus;
+}
+
+/* Given a gfar_priv structure, find the mii_bus controlled by this device (not
+ * necessarily the same as the bus the gfar's PHY is on), if one exists.
+ * Normally only the first gianfar controls a mii_bus.  */
+struct mii_bus *gfar_get_miibus(const struct gfar_private *priv)
+{
+	/*const*/ struct device *d;
+
+	d = bus_find_device(gianfar_mdio_driver.bus, NULL, (void *)priv,
+			    match_mdio_bus);
+	return d ? dev_get_drvdata(d) : NULL;
+}
+
 int __init gfar_mdio_init(void)
 {
 	return driver_register(&gianfar_mdio_driver);

drivers/net/gianfar_mii.h

···
 #ifndef __GIANFAR_MII_H
 #define __GIANFAR_MII_H
 
+struct gfar_private; /* forward ref */
+
 #define MIIMIND_BUSY            0x00000001
 #define MIIMIND_NOTVALID        0x00000004
 
···
 int gfar_local_mdio_write(struct gfar_mii __iomem *regs, int mii_id,
 			  int regnum, u16 value);
 int gfar_local_mdio_read(struct gfar_mii __iomem *regs, int mii_id, int regnum);
+struct mii_bus *gfar_get_miibus(const struct gfar_private *priv);
 int __init gfar_mdio_init(void);
 void gfar_mdio_exit(void);
 #endif /* GIANFAR_PHY_H */

drivers/net/irda/ks959-sir.c

···
 #include <linux/errno.h>
 #include <linux/init.h>
 #include <linux/slab.h>
-#include <linux/module.h>
 #include <linux/kref.h>
 #include <linux/usb.h>
 #include <linux/device.h>

drivers/net/irda/ksdazzle-sir.c

···
 #include <linux/errno.h>
 #include <linux/init.h>
 #include <linux/slab.h>
-#include <linux/module.h>
 #include <linux/kref.h>
 #include <linux/usb.h>
 #include <linux/device.h>

drivers/net/loopback.c

···
 
 	skb->protocol = eth_type_trans(skb,dev);
 
-#ifdef LOOPBACK_TSO
-	if (skb_is_gso(skb)) {
-		BUG_ON(skb->protocol != htons(ETH_P_IP));
-		BUG_ON(ip_hdr(skb)->protocol != IPPROTO_TCP);
-
-		emulate_large_send_offload(skb);
-		return 0;
-	}
-#endif
 	dev->last_rx = jiffies;
 
 	/* it's OK to use per_cpu_ptr() because BHs are off */

drivers/net/myri10ge/myri10ge.c

···
 #include "myri10ge_mcp.h"
 #include "myri10ge_mcp_gen_header.h"
 
-#define MYRI10GE_VERSION_STR "1.4.3-1.371"
+#define MYRI10GE_VERSION_STR "1.4.3-1.375"
 
 MODULE_DESCRIPTION("Myricom 10G driver (10GbE)");
 MODULE_AUTHOR("Maintainer: [e-mail]");
···
 		if (tx->req == tx->done) {
 			tx->queue_active = 0;
 			put_be32(htonl(1), tx->send_stop);
+			mmiowb();
 		}
 		__netif_tx_unlock(dev_queue);
 	}
···
 	if ((mgp->dev->real_num_tx_queues > 1) && tx->queue_active == 0) {
 		tx->queue_active = 1;
 		put_be32(htonl(1), tx->send_go);
+		mmiowb();
 	}
 	tx->pkt_start++;
 	if ((avail - count) < MXGEFW_MAX_SEND_DESC) {

drivers/net/pppoe.c

···
 	if (skb->len < len)
 		goto drop;
 
-	po = get_item(ph->sid, eth_hdr(skb)->h_source, dev->ifindex);
-	if (!po)
+	if (pskb_trim_rcsum(skb, len))
 		goto drop;
 
-	if (pskb_trim_rcsum(skb, len))
+	po = get_item(ph->sid, eth_hdr(skb)->h_source, dev->ifindex);
+	if (!po)
 		goto drop;
 
 	return sk_receive_skb(sk_pppox(po), skb, 0);

drivers/net/smc91x.c

···
 			      struct net_device *ndev)
 {
 	struct resource * res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "smc91x-attrib");
-	struct smc_local *lp = netdev_priv(ndev);
 
 	if (!res)
 		return 0;
···
 			       struct net_device *ndev)
 {
 	struct resource * res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "smc91x-attrib");
-	struct smc_local *lp = netdev_priv(ndev);
 
 	if (res)
 		release_mem_region(res->start, ATTRIB_SIZE);

drivers/net/wan/z85230.c

···
  *	z8530_interrupt - Handle an interrupt from a Z8530
  *	@irq: 	Interrupt number
  *	@dev_id: The Z8530 device that is interrupting.
- *	@regs: unused
  *
  *	A Z85[2]30 device has stuck its hand in the air for attention.
  *	We scan both the channels on the chip for events and then call

drivers/net/wireless/ath5k/base.c

···
 		sc->opmode != NL80211_IFTYPE_MESH_POINT &&
 		test_bit(ATH_STAT_PROMISC, sc->status))
 		rfilt |= AR5K_RX_FILTER_PROM;
-	if (sc->opmode == NL80211_IFTYPE_STATION ||
-		sc->opmode == NL80211_IFTYPE_ADHOC) {
+	if (sc->opmode == NL80211_IFTYPE_ADHOC)
 		rfilt |= AR5K_RX_FILTER_BEACON;
-	}
 
 	/* Set filters */
 	ath5k_hw_set_rx_filter(ah,rfilt);

drivers/net/wireless/ath5k/debug.c

···
 	{ ATH5K_DEBUG_BEACON,	"beacon",	"beacon handling" },
 	{ ATH5K_DEBUG_CALIBRATE, "calib",	"periodic calibration" },
 	{ ATH5K_DEBUG_TXPOWER,	"txpower",	"transmit power setting" },
-	{ ATH5K_DEBUG_LED,	"led",		"LED mamagement" },
+	{ ATH5K_DEBUG_LED,	"led",		"LED management" },
 	{ ATH5K_DEBUG_DUMP_RX,	"dumprx",	"print received skb content" },
 	{ ATH5K_DEBUG_DUMP_TX,	"dumptx",	"print transmit skb content" },
 	{ ATH5K_DEBUG_DUMPBANDS, "dumpbands",	"dump bands" },

drivers/net/wireless/ath5k/initvals.c

···
 		{ 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000 } },
 	{ AR5K_PHY(642),
 		{ 0xd03e6788, 0xd03e6788, 0xd03e6788, 0xd03e6788, 0xd03e6788 } },
+	{ 0xa228,
+		{ 0x000001b5, 0x000001b5, 0x000001b5, 0x000001b5, 0x000001b5 } },
 	{ 0xa23c,
 		{ 0x13c889af, 0x13c889af, 0x13c889af, 0x13c889af, 0x13c889af } },
 };

drivers/net/wireless/ath5k/reset.c

···
 		mdelay(1);
 
 		/*
-		 * Write some more initial register settings
+		 * Write some more initial register settings for revised chips
 		 */
-		if (ah->ah_version == AR5K_AR5212) {
+		if (ah->ah_version == AR5K_AR5212 &&
+		    ah->ah_phy_revision > 0x41) {
 			ath5k_hw_reg_write(ah, 0x0002a002, 0x982c);
 
 			if (channel->hw_value == CHANNEL_G)
···
 			else
 				ath5k_hw_reg_write(ah, 0x00000000, 0x994c);
 
-			/* Some bits are disabled here, we know nothing about
-			 * register 0xa228 yet, most of the times this ends up
-			 * with a value 0x9b5 -haven't seen any dump with
-			 * a different value- */
-			/* Got this from decompiling binary HAL */
-			data = ath5k_hw_reg_read(ah, 0xa228);
-			data &= 0xfffffdff;
-			ath5k_hw_reg_write(ah, data, 0xa228);
+			/* Got this from legacy-hal */
+			AR5K_REG_DISABLE_BITS(ah, 0xa228, 0x200);
 
-			data = ath5k_hw_reg_read(ah, 0xa228);
-			data &= 0xfffe03ff;
-			ath5k_hw_reg_write(ah, data, 0xa228);
-			data = 0;
+			AR5K_REG_MASKED_BITS(ah, 0xa228, 0x800, 0xfffe03ff);
 
 			/* Just write 0x9b5 ? */
 			/* ath5k_hw_reg_write(ah, 0x000009b5, 0xa228); */

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

···
 		iwl4965_error_recovery(priv);
 
 	iwl_power_update_mode(priv, 1);
-	ieee80211_notify_mac(priv->hw, IEEE80211_NOTIFY_RE_ASSOC);
 
 	if (test_and_clear_bit(STATUS_MODE_PENDING, &priv->status))
 		iwl4965_set_mode(priv, priv->iw_mode);
···
 	mutex_lock(&priv->mutex);
 	iwl_alive_start(priv);
 	mutex_unlock(&priv->mutex);
+	ieee80211_notify_mac(priv->hw, IEEE80211_NOTIFY_RE_ASSOC);
 }
 
 static void iwl4965_bg_rf_kill(struct work_struct *work)

drivers/net/wireless/libertas/cmd.c

···
 	if (ret == 0) {
 		*curlevel = le16_to_cpu(cmd.curlevel);
 		if (minlevel)
-			*minlevel = le16_to_cpu(cmd.minlevel);
+			*minlevel = cmd.minlevel;
 		if (maxlevel)
-			*maxlevel = le16_to_cpu(cmd.maxlevel);
+			*maxlevel = cmd.maxlevel;
 	}
 
 	lbs_deb_leave(LBS_DEB_CMD);

drivers/net/wireless/libertas/scan.c

···
 
 		switch (elem->id) {
 		case MFIE_TYPE_SSID:
-			bss->ssid_len = elem->len;
-			memcpy(bss->ssid, elem->data, elem->len);
+			bss->ssid_len = min_t(int, 32, elem->len);
+			memcpy(bss->ssid, elem->data, bss->ssid_len);
 			lbs_deb_scan("got SSID IE: '%s', len %u\n",
 			             escape_essid(bss->ssid, bss->ssid_len),
 			             bss->ssid_len);

drivers/net/wireless/rt2x00/Kconfig

···
 menuconfig RT2X00
-	bool "Ralink driver support"
+	tristate "Ralink driver support"
 	depends on MAC80211 && WLAN_80211 && EXPERIMENTAL
 	---help---
 	  This will enable the experimental support for the Ralink drivers,

include/linux/fsl_devices.h

···
 	u32	device_flags;
 	/* board specific information */
 	u32	board_flags;
-	char	bus_id[MII_BUS_ID_SIZE];
+	int	mdio_bus;			/* Bus controlled by us */
+	char	bus_id[MII_BUS_ID_SIZE];	/* Bus PHY is on */
 	u32	phy_id;
 	u8	mac_addr[6];
 	phy_interface_t interface;

include/linux/netdevice.h

···
 /**
  *	netif_tx_lock - grab network device transmit lock
  *	@dev: network device
- *	@cpu: cpu number of lock owner
  *
  * Get network device transmit lock
  */

include/net/net_namespace.h

···
 
 extern int register_pernet_subsys(struct pernet_operations *);
 extern void unregister_pernet_subsys(struct pernet_operations *);
+extern int register_pernet_gen_subsys(int *id, struct pernet_operations *);
+extern void unregister_pernet_gen_subsys(int id, struct pernet_operations *);
 extern int register_pernet_device(struct pernet_operations *);
 extern void unregister_pernet_device(struct pernet_operations *);
 extern int register_pernet_gen_device(int *id, struct pernet_operations *);

include/net/sock.h

···
 
 /**
  *	sk_filter_release: Release a socket filter
- *	@sk: socket
  *	@fp: filter to remove
  *
  *	Remove a filter from a socket and release its resources.

net/core/net_namespace.c

···
 }
 EXPORT_SYMBOL_GPL(unregister_pernet_subsys);
 
+int register_pernet_gen_subsys(int *id, struct pernet_operations *ops)
+{
+	int rv;
+
+	mutex_lock(&net_mutex);
+again:
+	rv = ida_get_new_above(&net_generic_ids, 1, id);
+	if (rv < 0) {
+		if (rv == -EAGAIN) {
+			ida_pre_get(&net_generic_ids, GFP_KERNEL);
+			goto again;
+		}
+		goto out;
+	}
+	rv = register_pernet_operations(first_device, ops);
+	if (rv < 0)
+		ida_remove(&net_generic_ids, *id);
+	mutex_unlock(&net_mutex);
+out:
+	return rv;
+}
+EXPORT_SYMBOL_GPL(register_pernet_gen_subsys);
+
+void unregister_pernet_gen_subsys(int id, struct pernet_operations *ops)
+{
+	mutex_lock(&net_mutex);
+	unregister_pernet_operations(ops);
+	ida_remove(&net_generic_ids, id);
+	mutex_unlock(&net_mutex);
+}
+EXPORT_SYMBOL_GPL(unregister_pernet_gen_subsys);
+
 /**
  *      register_pernet_device - register a network namespace device
  *	@ops:  pernet operations structure for the subsystem

net/core/skbuff.c

···
 	__kfree_skb(skb);
 }
 
+/**
+ *	skb_recycle_check - check if skb can be reused for receive
+ *	@skb: buffer
+ *	@skb_size: minimum receive buffer size
+ *
+ *	Checks that the skb passed in is not shared or cloned, and
+ *	that it is linear and its head portion at least as large as
+ *	skb_size so that it can be recycled as a receive buffer.
+ *	If these conditions are met, this function does any necessary
+ *	reference count dropping and cleans up the skbuff as if it
+ *	just came from __alloc_skb().
+ */
 int skb_recycle_check(struct sk_buff *skb, int skb_size)
 {
 	struct skb_shared_info *shinfo;

net/ipv4/cipso_ipv4.c

···
 	u32 opt_len;
 	int len_delta;
 
-	buf_len = cipso_v4_genopt(buf, buf_len, doi_def, secattr);
-	if (buf_len < 0)
-		return buf_len;
+	ret_val = cipso_v4_genopt(buf, buf_len, doi_def, secattr);
+	if (ret_val < 0)
+		return ret_val;
+	buf_len = ret_val;
 	opt_len = (buf_len + 3) & ~3;
 
 	/* we overwrite any existing options to ensure that we have enough

net/ipv4/udp.c

···
 }
 EXPORT_SYMBOL_GPL(udp4_lib_lookup);
 
-static inline struct sock *udp_v4_mcast_next(struct sock *sk,
+static inline struct sock *udp_v4_mcast_next(struct net *net, struct sock *sk,
 					     __be16 loc_port, __be32 loc_addr,
 					     __be16 rmt_port, __be32 rmt_addr,
 					     int dif)
···
 	sk_for_each_from(s, node) {
 		struct inet_sock *inet = inet_sk(s);
 
-		if (s->sk_hash != hnum					||
+		if (!net_eq(sock_net(s), net)				||
+		    s->sk_hash != hnum					||
 		    (inet->daddr && inet->daddr != rmt_addr)		||
 		    (inet->dport != rmt_port && inet->dport)		||
 		    (inet->rcv_saddr && inet->rcv_saddr != loc_addr)	||
···
 	read_lock(&udp_hash_lock);
 	sk = sk_head(&udptable[udp_hashfn(net, ntohs(uh->dest))]);
 	dif = skb->dev->ifindex;
-	sk = udp_v4_mcast_next(sk, uh->dest, daddr, uh->source, saddr, dif);
+	sk = udp_v4_mcast_next(net, sk, uh->dest, daddr, uh->source, saddr, dif);
 	if (sk) {
 		struct sock *sknext = NULL;
 
 		do {
 			struct sk_buff *skb1 = skb;
 
-			sknext = udp_v4_mcast_next(sk_next(sk), uh->dest, daddr,
-						   uh->source, saddr, dif);
+			sknext = udp_v4_mcast_next(net, sk_next(sk), uh->dest,
+						   daddr, uh->source, saddr,
+						   dif);
 			if (sknext)
 				skb1 = skb_clone(skb, GFP_ATOMIC);
 

net/ipv6/udp.c

···
 	return -1;
 }
 
-static struct sock *udp_v6_mcast_next(struct sock *sk,
+static struct sock *udp_v6_mcast_next(struct net *net, struct sock *sk,
 				      __be16 loc_port, struct in6_addr *loc_addr,
 				      __be16 rmt_port, struct in6_addr *rmt_addr,
 				      int dif)
···
 	sk_for_each_from(s, node) {
 		struct inet_sock *inet = inet_sk(s);
 
-		if (sock_net(s) != sock_net(sk))
+		if (!net_eq(sock_net(s), net))
 			continue;
 
 		if (s->sk_hash == num && s->sk_family == PF_INET6) {
···
 	read_lock(&udp_hash_lock);
 	sk = sk_head(&udptable[udp_hashfn(net, ntohs(uh->dest))]);
 	dif = inet6_iif(skb);
-	sk = udp_v6_mcast_next(sk, uh->dest, daddr, uh->source, saddr, dif);
+	sk = udp_v6_mcast_next(net, sk, uh->dest, daddr, uh->source, saddr, dif);
 	if (!sk) {
 		kfree_skb(skb);
 		goto out;
 	}
 
 	sk2 = sk;
-	while ((sk2 = udp_v6_mcast_next(sk_next(sk2), uh->dest, daddr,
+	while ((sk2 = udp_v6_mcast_next(net, sk_next(sk2), uh->dest, daddr,
 					uh->source, saddr, dif))) {
 		struct sk_buff *buff = skb_clone(skb, GFP_ATOMIC);
 		if (buff) {

net/key/af_key.c

···
 			req_size += socklen * 2;
 		} else {
 			size -= 2*socklen;
-			socklen = 0;
 		}
 		rq = (void*)skb_put(skb, req_size);
 		pol->sadb_x_policy_len += req_size/8;

net/netfilter/nf_conntrack_proto_gre.c

···
 	rv = nf_conntrack_l4proto_register(&nf_conntrack_l4proto_gre4);
 	if (rv < 0)
 		return rv;
-	rv = register_pernet_gen_device(&proto_gre_net_id, &proto_gre_net_ops);
+	rv = register_pernet_gen_subsys(&proto_gre_net_id, &proto_gre_net_ops);
 	if (rv < 0)
 		nf_conntrack_l4proto_unregister(&nf_conntrack_l4proto_gre4);
 	return rv;
···
 static void nf_ct_proto_gre_fini(void)
 {
 	nf_conntrack_l4proto_unregister(&nf_conntrack_l4proto_gre4);
-	unregister_pernet_gen_device(proto_gre_net_id, &proto_gre_net_ops);
+	unregister_pernet_gen_subsys(proto_gre_net_id, &proto_gre_net_ops);
 }
 
 module_init(nf_ct_proto_gre_init);

net/netlabel/netlabel_addrlist.c

···
  * Audit Helper Functions
  */
 
+#ifdef CONFIG_AUDIT
 /**
  * netlbl_af4list_audit_addr - Audit an IPv4 address
  * @audit_buf: audit buffer
···
 	}
 }
 #endif /* IPv6 */
+#endif /* CONFIG_AUDIT */

net/netlabel/netlabel_addrlist.h

···
 struct netlbl_af4list *netlbl_af4list_search_exact(__be32 addr,
 						   __be32 mask,
 						   struct list_head *head);
+
+#ifdef CONFIG_AUDIT
 void netlbl_af4list_audit_addr(struct audit_buffer *audit_buf,
 			       int src, const char *dev,
 			       __be32 addr, __be32 mask);
+#else
+static inline void netlbl_af4list_audit_addr(struct audit_buffer *audit_buf,
+					     int src, const char *dev,
+					     __be32 addr, __be32 mask)
+{
+	return;
+}
+#endif
 
 #if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
 
···
 struct netlbl_af6list *netlbl_af6list_search_exact(const struct in6_addr *addr,
 						   const struct in6_addr *mask,
 						   struct list_head *head);
+
+#ifdef CONFIG_AUDIT
 void netlbl_af6list_audit_addr(struct audit_buffer *audit_buf,
 			       int src,
 			       const char *dev,
 			       const struct in6_addr *addr,
 			       const struct in6_addr *mask);
+#else
+static inline void netlbl_af6list_audit_addr(struct audit_buffer *audit_buf,
+					     int src,
+					     const char *dev,
+					     const struct in6_addr *addr,
+					     const struct in6_addr *mask)
+{
+	return;
+}
+#endif
 #endif /* IPV6 */
 
 #endif

net/netlabel/netlabel_mgmt.c

···
 static int netlbl_mgmt_listentry(struct sk_buff *skb,
 				 struct netlbl_dom_map *entry)
 {
-	int ret_val;
+	int ret_val = 0;
 	struct nlattr *nla_a;
 	struct nlattr *nla_b;
 	struct netlbl_af4list *iter4;

net/unix/af_unix.c

···
 #endif
 	error = 0;
 out:
-	return 0;
+	return error;
 }
 
 static void unix_net_exit(struct net *net)

net/xfrm/xfrm_policy.c

···
 				 -EINVAL : -EAGAIN);
 			xfrm_state_put(x);
 		}
+		else if (error == -ESRCH)
+			error = -EAGAIN;
 
 		if (!tmpl->optional)
 			goto fail;