2 files changed, 44 insertions, 264 deletions

diff --git a/drivers/net/bonding/bond_ipv6.c b/drivers/net/bonding/bond_ipv6.c
deleted file mode 100644
index 027a0ee7d85..00000000000
--- a/drivers/net/bonding/bond_ipv6.c
+++ /dev/null
@@ -1,225 +0,0 @@
-/*
- * Copyright(c) 2008 Hewlett-Packard Development Company, L.P.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
- * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
- *
- * The full GNU General Public License is included in this distribution in the
- * file called LICENSE.
- *
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/types.h>
-#include <linux/if_vlan.h>
-#include <net/ipv6.h>
-#include <net/ndisc.h>
-#include <net/addrconf.h>
-#include <net/netns/generic.h>
-#include "bonding.h"
-
-/*
- * Assign bond->master_ipv6 to the next IPv6 address in the list, or
- * zero it out if there are none.
- */
-static void bond_glean_dev_ipv6(struct net_device *dev, struct in6_addr *addr)
-{
-	struct inet6_dev *idev;
-
-	if (!dev)
-		return;
-
-	idev = in6_dev_get(dev);
-	if (!idev)
-		return;
-
-	read_lock_bh(&idev->lock);
-	if (!list_empty(&idev->addr_list)) {
-		struct inet6_ifaddr *ifa
-			= list_first_entry(&idev->addr_list,
-					   struct inet6_ifaddr, if_list);
-		ipv6_addr_copy(addr, &ifa->addr);
-	} else
-		ipv6_addr_set(addr, 0, 0, 0, 0);
-
-	read_unlock_bh(&idev->lock);
-
-	in6_dev_put(idev);
-}
-
-static void bond_na_send(struct net_device *slave_dev,
-			 struct in6_addr *daddr,
-			 int router,
-			 unsigned short vlan_id)
-{
-	struct in6_addr mcaddr;
-	struct icmp6hdr icmp6h = {
-		.icmp6_type = NDISC_NEIGHBOUR_ADVERTISEMENT,
-	};
-	struct sk_buff *skb;
-
-	icmp6h.icmp6_router = router;
-	icmp6h.icmp6_solicited = 0;
-	icmp6h.icmp6_override = 1;
-
-	addrconf_addr_solict_mult(daddr, &mcaddr);
-
-	pr_debug("ipv6 na on slave %s: dest %pI6, src %pI6\n",
-		 slave_dev->name, &mcaddr, daddr);
-
-	skb = ndisc_build_skb(slave_dev, &mcaddr, daddr, &icmp6h, daddr,
-			      ND_OPT_TARGET_LL_ADDR);
-
-	if (!skb) {
-		pr_err("NA packet allocation failed\n");
-		return;
-	}
-
-	if (vlan_id) {
-		/* The Ethernet header is not present yet, so it is
-		 * too early to insert a VLAN tag.  Force use of an
-		 * out-of-line tag here and let dev_hard_start_xmit()
-		 * insert it if the slave hardware can't.
-		 */
-		skb = __vlan_hwaccel_put_tag(skb, vlan_id);
-		if (!skb) {
-			pr_err("failed to insert VLAN tag\n");
-			return;
-		}
-	}
-
-	ndisc_send_skb(skb, slave_dev, NULL, &mcaddr, daddr, &icmp6h);
-}
-
-/*
- * Kick out an unsolicited Neighbor Advertisement for an IPv6 address on
- * the bonding master.  This will help the switch learn our address
- * if in active-backup mode.
- *
- * Caller must hold curr_slave_lock for read or better
- */
-void bond_send_unsolicited_na(struct bonding *bond)
-{
-	struct slave *slave = bond->curr_active_slave;
-	struct vlan_entry *vlan;
-	struct inet6_dev *idev;
-	int is_router;
-
-	pr_debug("%s: bond %s slave %s\n", bond->dev->name,
-		 __func__, slave ? slave->dev->name : "NULL");
-
-	if (!slave || !bond->send_unsol_na ||
-	    test_bit(__LINK_STATE_LINKWATCH_PENDING, &slave->dev->state))
-		return;
-
-	bond->send_unsol_na--;
-
-	idev = in6_dev_get(bond->dev);
-	if (!idev)
-		return;
-
-	is_router = !!idev->cnf.forwarding;
-
-	in6_dev_put(idev);
-
-	if (!ipv6_addr_any(&bond->master_ipv6))
-		bond_na_send(slave->dev, &bond->master_ipv6, is_router, 0);
-
-	list_for_each_entry(vlan, &bond->vlan_list, vlan_list) {
-		if (!ipv6_addr_any(&vlan->vlan_ipv6)) {
-			bond_na_send(slave->dev, &vlan->vlan_ipv6, is_router,
-				     vlan->vlan_id);
-		}
-	}
-}
-
-/*
- * bond_inet6addr_event: handle inet6addr notifier chain events.
- *
- * We keep track of device IPv6 addresses primarily to use as source
- * addresses in NS probes.
- *
- * We track one IPv6 for the main device (if it has one).
- */
-static int bond_inet6addr_event(struct notifier_block *this,
-				unsigned long event,
-				void *ptr)
-{
-	struct inet6_ifaddr *ifa = ptr;
-	struct net_device *vlan_dev, *event_dev = ifa->idev->dev;
-	struct bonding *bond;
-	struct vlan_entry *vlan;
-	struct bond_net *bn = net_generic(dev_net(event_dev), bond_net_id);
-
-	list_for_each_entry(bond, &bn->dev_list, bond_list) {
-		if (bond->dev == event_dev) {
-			switch (event) {
-			case NETDEV_UP:
-				if (ipv6_addr_any(&bond->master_ipv6))
-					ipv6_addr_copy(&bond->master_ipv6,
-						       &ifa->addr);
-				return NOTIFY_OK;
-			case NETDEV_DOWN:
-				if (ipv6_addr_equal(&bond->master_ipv6,
-						    &ifa->addr))
-					bond_glean_dev_ipv6(bond->dev,
-							    &bond->master_ipv6);
-				return NOTIFY_OK;
-			default:
-				return NOTIFY_DONE;
-			}
-		}
-
-		list_for_each_entry(vlan, &bond->vlan_list, vlan_list) {
-			rcu_read_lock();
-			vlan_dev = __vlan_find_dev_deep(bond->dev,
-							vlan->vlan_id);
-			rcu_read_unlock();
-			if (vlan_dev == event_dev) {
-				switch (event) {
-				case NETDEV_UP:
-					if (ipv6_addr_any(&vlan->vlan_ipv6))
-						ipv6_addr_copy(&vlan->vlan_ipv6,
-							       &ifa->addr);
-					return NOTIFY_OK;
-				case NETDEV_DOWN:
-					if (ipv6_addr_equal(&vlan->vlan_ipv6,
-							    &ifa->addr))
-						bond_glean_dev_ipv6(vlan_dev,
-								    &vlan->vlan_ipv6);
-					return NOTIFY_OK;
-				default:
-					return NOTIFY_DONE;
-				}
-			}
-		}
-	}
-	return NOTIFY_DONE;
-}
-
-static struct notifier_block bond_inet6addr_notifier = {
-	.notifier_call = bond_inet6addr_event,
-};
-
-void bond_register_ipv6_notifier(void)
-{
-	register_inet6addr_notifier(&bond_inet6addr_notifier);
-}
-
-void bond_unregister_ipv6_notifier(void)
-{
-	unregister_inet6addr_notifier(&bond_inet6addr_notifier);
-}
-
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 7f8756825b8..435984ad8b2 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -428,27 +428,34 @@ int bond_dev_queue_xmit(struct bonding *bond, struct sk_buff *skb,
  * @bond_dev: bonding net device that got called
  * @vid: vlan id being added
  */
-static void bond_vlan_rx_add_vid(struct net_device *bond_dev, uint16_t vid)
+static int bond_vlan_rx_add_vid(struct net_device *bond_dev, uint16_t vid)
 {
 	struct bonding *bond = netdev_priv(bond_dev);
-	struct slave *slave;
+	struct slave *slave, *stop_at;
 	int i, res;
 
 	bond_for_each_slave(bond, slave, i) {
-		struct net_device *slave_dev = slave->dev;
-		const struct net_device_ops *slave_ops = slave_dev->netdev_ops;
-
-		if ((slave_dev->features & NETIF_F_HW_VLAN_FILTER) &&
-		    slave_ops->ndo_vlan_rx_add_vid) {
-			slave_ops->ndo_vlan_rx_add_vid(slave_dev, vid);
-		}
+		res = vlan_vid_add(slave->dev, vid);
+		if (res)
+			goto unwind;
 	}
 
 	res = bond_add_vlan(bond, vid);
 	if (res) {
 		pr_err("%s: Error: Failed to add vlan id %d\n",
 		       bond_dev->name, vid);
+		return res;
 	}
+
+	return 0;
+
+unwind:
+	/* unwind from head to the slave that failed */
+	stop_at = slave;
+	bond_for_each_slave_from_to(bond, slave, i, bond->first_slave, stop_at)
+		vlan_vid_del(slave->dev, vid);
+
+	return res;
 }
 
 /**
@@ -456,56 +463,48 @@ static void bond_vlan_rx_add_vid(struct net_device *bond_dev, uint16_t vid)
  * @bond_dev: bonding net device that got called
  * @vid: vlan id being removed
  */
-static void bond_vlan_rx_kill_vid(struct net_device *bond_dev, uint16_t vid)
+static int bond_vlan_rx_kill_vid(struct net_device *bond_dev, uint16_t vid)
 {
 	struct bonding *bond = netdev_priv(bond_dev);
 	struct slave *slave;
 	int i, res;
 
-	bond_for_each_slave(bond, slave, i) {
-		struct net_device *slave_dev = slave->dev;
-		const struct net_device_ops *slave_ops = slave_dev->netdev_ops;
-
-		if ((slave_dev->features & NETIF_F_HW_VLAN_FILTER) &&
-		    slave_ops->ndo_vlan_rx_kill_vid) {
-			slave_ops->ndo_vlan_rx_kill_vid(slave_dev, vid);
-		}
-	}
+	bond_for_each_slave(bond, slave, i)
+		vlan_vid_del(slave->dev, vid);
 
 	res = bond_del_vlan(bond, vid);
 	if (res) {
 		pr_err("%s: Error: Failed to remove vlan id %d\n",
 		       bond_dev->name, vid);
+		return res;
 	}
+
+	return 0;
 }
 
 static void bond_add_vlans_on_slave(struct bonding *bond, struct net_device *slave_dev)
 {
 	struct vlan_entry *vlan;
-	const struct net_device_ops *slave_ops = slave_dev->netdev_ops;
-
-	if (!(slave_dev->features & NETIF_F_HW_VLAN_FILTER) ||
-	    !(slave_ops->ndo_vlan_rx_add_vid))
-		return;
+	int res;
 
-	list_for_each_entry(vlan, &bond->vlan_list, vlan_list)
-		slave_ops->ndo_vlan_rx_add_vid(slave_dev, vlan->vlan_id);
+	list_for_each_entry(vlan, &bond->vlan_list, vlan_list) {
+		res = vlan_vid_add(slave_dev, vlan->vlan_id);
+		if (res)
+			pr_warning("%s: Failed to add vlan id %d to device %s\n",
+				   bond->dev->name, vlan->vlan_id,
+				   slave_dev->name);
+	}
 }
 
 static void bond_del_vlans_from_slave(struct bonding *bond,
 				      struct net_device *slave_dev)
 {
-	const struct net_device_ops *slave_ops = slave_dev->netdev_ops;
 	struct vlan_entry *vlan;
 
-	if (!(slave_dev->features & NETIF_F_HW_VLAN_FILTER) ||
-	    !(slave_ops->ndo_vlan_rx_kill_vid))
-		return;
-
 	list_for_each_entry(vlan, &bond->vlan_list, vlan_list) {
 		if (!vlan->vlan_id)
 			continue;
-		slave_ops->ndo_vlan_rx_kill_vid(slave_dev, vlan->vlan_id);
+		vlan_vid_del(slave_dev, vlan->vlan_id);
 	}
 }
 
@@ -1325,11 +1324,12 @@ static int bond_sethwaddr(struct net_device *bond_dev,
 	return 0;
 }
 
-static u32 bond_fix_features(struct net_device *dev, u32 features)
+static netdev_features_t bond_fix_features(struct net_device *dev,
+	netdev_features_t features)
 {
 	struct slave *slave;
 	struct bonding *bond = netdev_priv(dev);
-	u32 mask;
+	netdev_features_t mask;
 	int i;
 
 	read_lock(&bond->lock);
@@ -1363,7 +1363,7 @@ static void bond_compute_features(struct bonding *bond)
 {
 	struct slave *slave;
 	struct net_device *bond_dev = bond->dev;
-	u32 vlan_features = BOND_VLAN_FEATURES;
+	netdev_features_t vlan_features = BOND_VLAN_FEATURES;
 	unsigned short max_hard_header_len = ETH_HLEN;
 	int i;
 
@@ -1822,7 +1822,7 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
 				 "but new slave device does not support netpoll.\n",
 				 bond_dev->name);
 			res = -EBUSY;
-			goto err_close;
+			goto err_detach;
 		}
 	}
 #endif
@@ -1831,7 +1831,7 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
 
 	res = bond_create_slave_symlinks(bond_dev, slave_dev);
 	if (res)
-		goto err_close;
+		goto err_detach;
 
 	res = netdev_rx_handler_register(slave_dev, bond_handle_frame,
 					 new_slave);
@@ -1852,6 +1852,11 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
 err_dest_symlinks:
 	bond_destroy_slave_symlinks(bond_dev, slave_dev);
 
+err_detach:
+	write_lock_bh(&bond->lock);
+	bond_detach_slave(bond, new_slave);
+	write_unlock_bh(&bond->lock);
+
 err_close:
 	dev_close(slave_dev);
 
@@ -1897,7 +1902,7 @@ int bond_release(struct net_device *bond_dev, struct net_device *slave_dev)
 	struct bonding *bond = netdev_priv(bond_dev);
 	struct slave *slave, *oldcurrent;
 	struct sockaddr addr;
-	u32 old_features = bond_dev->features;
+	netdev_features_t old_features = bond_dev->features;
 
 	/* slave is not a slave or master is not master of this slave */
 	if (!(slave_dev->flags & IFF_SLAVE) ||
@@ -4339,7 +4344,7 @@ static void bond_setup(struct net_device *bond_dev)
 				NETIF_F_HW_VLAN_RX |
 				NETIF_F_HW_VLAN_FILTER;
 
-	bond_dev->hw_features &= ~(NETIF_F_ALL_CSUM & ~NETIF_F_NO_CSUM);
+	bond_dev->hw_features &= ~(NETIF_F_ALL_CSUM & ~NETIF_F_HW_CSUM);
 	bond_dev->features |= bond_dev->hw_features;
 }