Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6

Conflicts:
	drivers/net/tokenring/tmspci.c
	drivers/net/ucc_geth_mii.c

11 files changed, 133 insertions, 114 deletions

diff --git a/net/802/tr.c b/net/802/tr.c
index dab6334..e7eb130 100644
--- a/net/802/tr.c
+++ b/net/802/tr.c
@@ -670,3 +670,5 @@ module_init(rif_init);
 
 EXPORT_SYMBOL(tr_type_trans);
 EXPORT_SYMBOL(alloc_trdev);
+
+MODULE_LICENSE("GPL");
diff --git a/net/8021q/vlan_dev.c b/net/8021q/vlan_dev.c
index 4a19acd..1b34135 100644
--- a/net/8021q/vlan_dev.c
+++ b/net/8021q/vlan_dev.c
@@ -553,7 +553,7 @@ static int vlan_dev_neigh_setup(struct net_device *dev, struct neigh_parms *pa)
 	int err = 0;
 
 	if (netif_device_present(real_dev) && ops->ndo_neigh_setup)
-		err = ops->ndo_neigh_setup(dev, pa);
+		err = ops->ndo_neigh_setup(real_dev, pa);
 
 	return err;
 }
@@ -639,6 +639,7 @@ static int vlan_dev_init(struct net_device *dev)
 		dev->hard_header_len = real_dev->hard_header_len + VLAN_HLEN;
 		dev->netdev_ops         = &vlan_netdev_ops;
 	}
+	netdev_resync_ops(dev);
 
 	if (is_vlan_dev(real_dev))
 		subclass = 1;
diff --git a/net/core/dev.c b/net/core/dev.c
index bcd0c21..033d7ca 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -4336,6 +4336,39 @@ unsigned long netdev_fix_features(unsigned long features, const char *name)
 }
 EXPORT_SYMBOL(netdev_fix_features);
 
+/* Some devices need to (re-)set their netdev_ops inside
+ * ->init() or similar.  If that happens, we have to setup
+ * the compat pointers again.
+ */
+void netdev_resync_ops(struct net_device *dev)
+{
+#ifdef CONFIG_COMPAT_NET_DEV_OPS
+	const struct net_device_ops *ops = dev->netdev_ops;
+
+	dev->init = ops->ndo_init;
+	dev->uninit = ops->ndo_uninit;
+	dev->open = ops->ndo_open;
+	dev->change_rx_flags = ops->ndo_change_rx_flags;
+	dev->set_rx_mode = ops->ndo_set_rx_mode;
+	dev->set_multicast_list = ops->ndo_set_multicast_list;
+	dev->set_mac_address = ops->ndo_set_mac_address;
+	dev->validate_addr = ops->ndo_validate_addr;
+	dev->do_ioctl = ops->ndo_do_ioctl;
+	dev->set_config = ops->ndo_set_config;
+	dev->change_mtu = ops->ndo_change_mtu;
+	dev->neigh_setup = ops->ndo_neigh_setup;
+	dev->tx_timeout = ops->ndo_tx_timeout;
+	dev->get_stats = ops->ndo_get_stats;
+	dev->vlan_rx_register = ops->ndo_vlan_rx_register;
+	dev->vlan_rx_add_vid = ops->ndo_vlan_rx_add_vid;
+	dev->vlan_rx_kill_vid = ops->ndo_vlan_rx_kill_vid;
+#ifdef CONFIG_NET_POLL_CONTROLLER
+	dev->poll_controller = ops->ndo_poll_controller;
+#endif
+#endif
+}
+EXPORT_SYMBOL(netdev_resync_ops);
+
 /**
  *	register_netdevice	- register a network device
  *	@dev: device to register
@@ -4380,27 +4413,7 @@ int register_netdevice(struct net_device *dev)
 	 * This is temporary until all network devices are converted.
 	 */
 	if (dev->netdev_ops) {
-		const struct net_device_ops *ops = dev->netdev_ops;
-
-		dev->init = ops->ndo_init;
-		dev->uninit = ops->ndo_uninit;
-		dev->open = ops->ndo_open;
-		dev->change_rx_flags = ops->ndo_change_rx_flags;
-		dev->set_rx_mode = ops->ndo_set_rx_mode;
-		dev->set_multicast_list = ops->ndo_set_multicast_list;
-		dev->set_mac_address = ops->ndo_set_mac_address;
-		dev->validate_addr = ops->ndo_validate_addr;
-		dev->do_ioctl = ops->ndo_do_ioctl;
-		dev->set_config = ops->ndo_set_config;
-		dev->change_mtu = ops->ndo_change_mtu;
-		dev->tx_timeout = ops->ndo_tx_timeout;
-		dev->get_stats = ops->ndo_get_stats;
-		dev->vlan_rx_register = ops->ndo_vlan_rx_register;
-		dev->vlan_rx_add_vid = ops->ndo_vlan_rx_add_vid;
-		dev->vlan_rx_kill_vid = ops->ndo_vlan_rx_kill_vid;
-#ifdef CONFIG_NET_POLL_CONTROLLER
-		dev->poll_controller = ops->ndo_poll_controller;
-#endif
+		netdev_resync_ops(dev);
 	} else {
 		char drivername[64];
 		pr_info("%s (%s): not using net_device_ops yet\n",
diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c
index 6ac29a4..484f587 100644
--- a/net/core/net-sysfs.c
+++ b/net/core/net-sysfs.c
@@ -77,7 +77,9 @@ static ssize_t netdev_store(struct device *dev, struct device_attribute *attr,
 	if (endp == buf)
 		goto err;
 
-	rtnl_lock();
+	if (!rtnl_trylock())
+		return -ERESTARTSYS;
+
 	if (dev_isalive(net)) {
 		if ((ret = (*set)(net, new)) == 0)
 			ret = len;
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index f8f76d6..e83852a 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -493,15 +493,17 @@ static void addrconf_forward_change(struct net *net, __s32 newf)
 	read_unlock(&dev_base_lock);
 }
 
-static void addrconf_fixup_forwarding(struct ctl_table *table, int *p, int old)
+static int addrconf_fixup_forwarding(struct ctl_table *table, int *p, int old)
 {
 	struct net *net;
 
 	net = (struct net *)table->extra2;
 	if (p == &net->ipv6.devconf_dflt->forwarding)
-		return;
+		return 0;
+
+	if (!rtnl_trylock())
+		return -ERESTARTSYS;
 
-	rtnl_lock();
 	if (p == &net->ipv6.devconf_all->forwarding) {
 		__s32 newf = net->ipv6.devconf_all->forwarding;
 		net->ipv6.devconf_dflt->forwarding = newf;
@@ -512,6 +514,7 @@ static void addrconf_fixup_forwarding(struct ctl_table *table, int *p, int old)
 
 	if (*p)
 		rt6_purge_dflt_routers(net);
+	return 1;
 }
 #endif
 
@@ -2599,9 +2602,6 @@ static int addrconf_ifdown(struct net_device *dev, int how)
 
 	ASSERT_RTNL();
 
-	if ((dev->flags & IFF_LOOPBACK) && how == 1)
-		how = 0;
-
 	rt6_ifdown(net, dev);
 	neigh_ifdown(&nd_tbl, dev);
 
@@ -3977,7 +3977,7 @@ int addrconf_sysctl_forward(ctl_table *ctl, int write, struct file * filp,
 	ret = proc_dointvec(ctl, write, filp, buffer, lenp, ppos);
 
 	if (write)
-		addrconf_fixup_forwarding(ctl, valp, val);
+		ret = addrconf_fixup_forwarding(ctl, valp, val);
 	return ret;
 }
 
@@ -4013,8 +4013,7 @@ static int addrconf_sysctl_forward_strategy(ctl_table *table,
 	}
 
 	*valp = new;
-	addrconf_fixup_forwarding(table, valp, val);
-	return 1;
+	return addrconf_fixup_forwarding(table, valp, val);
 }
 
 static struct addrconf_sysctl_table
@@ -4440,25 +4439,6 @@ int unregister_inet6addr_notifier(struct notifier_block *nb)
 
 EXPORT_SYMBOL(unregister_inet6addr_notifier);
 
-static void addrconf_net_exit(struct net *net)
-{
-	struct net_device *dev;
-
-	rtnl_lock();
-	/* clean dev list */
-	for_each_netdev(net, dev) {
-		if (__in6_dev_get(dev) == NULL)
-			continue;
-		addrconf_ifdown(dev, 1);
-	}
-	addrconf_ifdown(net->loopback_dev, 2);
-	rtnl_unlock();
-}
-
-static struct pernet_operations addrconf_net_ops = {
-	.exit = addrconf_net_exit,
-};
-
 /*
  *	Init / cleanup code
  */
@@ -4500,10 +4480,6 @@ int __init addrconf_init(void)
 	if (err)
 		goto errlo;
 
-	err = register_pernet_device(&addrconf_net_ops);
-	if (err)
-		return err;
-
 	register_netdevice_notifier(&ipv6_dev_notf);
 
 	addrconf_verify(0);
@@ -4533,15 +4509,22 @@ errlo:
 void addrconf_cleanup(void)
 {
 	struct inet6_ifaddr *ifa;
+	struct net_device *dev;
 	int i;
 
 	unregister_netdevice_notifier(&ipv6_dev_notf);
-	unregister_pernet_device(&addrconf_net_ops);
-
 	unregister_pernet_subsys(&addrconf_ops);
 
 	rtnl_lock();
 
+	/* clean dev list */
+	for_each_netdev(&init_net, dev) {
+		if (__in6_dev_get(dev) == NULL)
+			continue;
+		addrconf_ifdown(dev, 1);
+	}
+	addrconf_ifdown(init_net.loopback_dev, 2);
+
 	/*
 	 *	Check hash table.
 	 */
@@ -4562,6 +4545,4 @@ void addrconf_cleanup(void)
 
 	del_timer(&addr_chk_timer);
 	rtnl_unlock();
-
-	unregister_pernet_subsys(&addrconf_net_ops);
 }
diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index fa2ac7e..57b07da 100644
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -72,6 +72,10 @@ MODULE_LICENSE("GPL");
 static struct list_head inetsw6[SOCK_MAX];
 static DEFINE_SPINLOCK(inetsw6_lock);
 
+static int disable_ipv6 = 0;
+module_param_named(disable, disable_ipv6, int, 0);
+MODULE_PARM_DESC(disable, "Disable IPv6 such that it is non-functional");
+
 static __inline__ struct ipv6_pinfo *inet6_sk_generic(struct sock *sk)
 {
 	const int offset = sk->sk_prot->obj_size - sizeof(struct ipv6_pinfo);
@@ -1001,10 +1005,21 @@ static int __init inet6_init(void)
 {
 	struct sk_buff *dummy_skb;
 	struct list_head *r;
-	int err;
+	int err = 0;
 
 	BUILD_BUG_ON(sizeof(struct inet6_skb_parm) > sizeof(dummy_skb->cb));
 
+	/* Register the socket-side information for inet6_create.  */
+	for(r = &inetsw6[0]; r < &inetsw6[SOCK_MAX]; ++r)
+		INIT_LIST_HEAD(r);
+
+	if (disable_ipv6) {
+		printk(KERN_INFO
+		       "IPv6: Loaded, but administratively disabled, "
+		       "reboot required to enable\n");
+		goto out;
+	}
+
 	err = proto_register(&tcpv6_prot, 1);
 	if (err)
 		goto out;
@@ -1022,10 +1037,6 @@ static int __init inet6_init(void)
 		goto out_unregister_udplite_proto;
 
 
-	/* Register the socket-side information for inet6_create.  */
-	for(r = &inetsw6[0]; r < &inetsw6[SOCK_MAX]; ++r)
-		INIT_LIST_HEAD(r);
-
 	/* We MUST register RAW sockets before we create the ICMP6,
 	 * IGMP6, or NDISC control sockets.
 	 */
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index e57d700..a007dbb 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -1091,6 +1091,13 @@ out:
 	return 0;
 }
 
+/**
+ * netlink_set_err - report error to broadcast listeners
+ * @ssk: the kernel netlink socket, as returned by netlink_kernel_create()
+ * @pid: the PID of a process that we want to skip (if any)
+ * @groups: the broadcast group that will notice the error
+ * @code: error code, must be negative (as usual in kernelspace)
+ */
 void netlink_set_err(struct sock *ssk, u32 pid, u32 group, int code)
 {
 	struct netlink_set_err_data info;
@@ -1100,7 +1107,8 @@ void netlink_set_err(struct sock *ssk, u32 pid, u32 group, int code)
 	info.exclude_sk = ssk;
 	info.pid = pid;
 	info.group = group;
-	info.code = code;
+	/* sk->sk_err wants a positive error value */
+	info.code = -code;
 
 	read_lock(&nl_table_lock);
 
diff --git a/net/sched/act_police.c b/net/sched/act_police.c
index 5c72a11..f8f047b 100644
--- a/net/sched/act_police.c
+++ b/net/sched/act_police.c
@@ -183,13 +183,6 @@ override:
 		if (R_tab == NULL)
 			goto failure;
 
-		if (!est && (ret == ACT_P_CREATED ||
-			     !gen_estimator_active(&police->tcf_bstats,
-						   &police->tcf_rate_est))) {
-			err = -EINVAL;
-			goto failure;
-		}
-
 		if (parm->peakrate.rate) {
 			P_tab = qdisc_get_rtab(&parm->peakrate,
 					       tb[TCA_POLICE_PEAKRATE]);
@@ -205,6 +198,12 @@ override:
 					    &police->tcf_lock, est);
 		if (err)
 			goto failure_unlock;
+	} else if (tb[TCA_POLICE_AVRATE] &&
+		   (ret == ACT_P_CREATED ||
+		    !gen_estimator_active(&police->tcf_bstats,
+					  &police->tcf_rate_est))) {
+		err = -EINVAL;
+		goto failure_unlock;
 	}
 
 	/* No failure allowed after this point */
diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c
index c1e316e..cb198af 100644
--- a/net/sctp/protocol.c
+++ b/net/sctp/protocol.c
@@ -692,15 +692,20 @@ static int sctp_inetaddr_event(struct notifier_block *this, unsigned long ev,
 static int sctp_ctl_sock_init(void)
 {
 	int err;
-	sa_family_t family;
+	sa_family_t family = PF_INET;
 
 	if (sctp_get_pf_specific(PF_INET6))
 		family = PF_INET6;
-	else
-		family = PF_INET;
 
 	err = inet_ctl_sock_create(&sctp_ctl_sock, family,
 				   SOCK_SEQPACKET, IPPROTO_SCTP, &init_net);
+
+	/* If IPv6 socket could not be created, try the IPv4 socket */
+	if (err < 0 && family == PF_INET6)
+		err = inet_ctl_sock_create(&sctp_ctl_sock, AF_INET,
+					   SOCK_SEQPACKET, IPPROTO_SCTP,
+					   &init_net);
+
 	if (err < 0) {
 		printk(KERN_ERR
 		       "SCTP: Failed to create the SCTP control socket.\n");
@@ -1297,9 +1302,8 @@ SCTP_STATIC __init int sctp_init(void)
 out:
 	return status;
 err_v6_add_protocol:
-	sctp_v6_del_protocol();
-err_add_protocol:
 	sctp_v4_del_protocol();
+err_add_protocol:
 	inet_ctl_sock_destroy(sctp_ctl_sock);
 err_ctl_sock_init:
 	sctp_v6_protosw_exit();
@@ -1310,7 +1314,6 @@ err_protosw_init:
 	sctp_v4_pf_exit();
 	sctp_v6_pf_exit();
 	sctp_sysctl_unregister();
-	list_del(&sctp_af_inet.list);
 	free_pages((unsigned long)sctp_port_hashtable,
 		   get_order(sctp_port_hashsize *
 			     sizeof(struct sctp_bind_hashbucket)));
@@ -1358,7 +1361,6 @@ SCTP_STATIC __exit void sctp_exit(void)
 	sctp_v4_pf_exit();
 
 	sctp_sysctl_unregister();
-	list_del(&sctp_af_inet.list);
 
 	free_pages((unsigned long)sctp_assoc_hashtable,
 		   get_order(sctp_assoc_hashsize *
diff --git a/net/sctp/sm_sideeffect.c b/net/sctp/sm_sideeffect.c
index 5385150..e2020eb 100644
--- a/net/sctp/sm_sideeffect.c
+++ b/net/sctp/sm_sideeffect.c
@@ -787,36 +787,48 @@ static void sctp_cmd_process_operr(sctp_cmd_seq_t *cmds,
 				   struct sctp_association *asoc,
 				   struct sctp_chunk *chunk)
 {
-	struct sctp_operr_chunk *operr_chunk;
 	struct sctp_errhdr *err_hdr;
+	struct sctp_ulpevent *ev;
 
-	operr_chunk = (struct sctp_operr_chunk *)chunk->chunk_hdr;
-	err_hdr = &operr_chunk->err_hdr;
+	while (chunk->chunk_end > chunk->skb->data) {
+		err_hdr = (struct sctp_errhdr *)(chunk->skb->data);
 
-	switch (err_hdr->cause) {
-	case SCTP_ERROR_UNKNOWN_CHUNK:
-	{
-		struct sctp_chunkhdr *unk_chunk_hdr;
+		ev = sctp_ulpevent_make_remote_error(asoc, chunk, 0,
+						     GFP_ATOMIC);
+		if (!ev)
+			return;
 
-		unk_chunk_hdr = (struct sctp_chunkhdr *)err_hdr->variable;
-		switch (unk_chunk_hdr->type) {
-		/* ADDIP 4.1 A9) If the peer responds to an ASCONF with an
-		 * ERROR chunk reporting that it did not recognized the ASCONF
-		 * chunk type, the sender of the ASCONF MUST NOT send any
-		 * further ASCONF chunks and MUST stop its T-4 timer.
-		 */
-		case SCTP_CID_ASCONF:
-			asoc->peer.asconf_capable = 0;
-			sctp_add_cmd_sf(cmds, SCTP_CMD_TIMER_STOP,
+		sctp_ulpq_tail_event(&asoc->ulpq, ev);
+
+		switch (err_hdr->cause) {
+		case SCTP_ERROR_UNKNOWN_CHUNK:
+		{
+			sctp_chunkhdr_t *unk_chunk_hdr;
+
+			unk_chunk_hdr = (sctp_chunkhdr_t *)err_hdr->variable;
+			switch (unk_chunk_hdr->type) {
+			/* ADDIP 4.1 A9) If the peer responds to an ASCONF with
+			 * an ERROR chunk reporting that it did not recognized
+			 * the ASCONF chunk type, the sender of the ASCONF MUST
+			 * NOT send any further ASCONF chunks and MUST stop its
+			 * T-4 timer.
+			 */
+			case SCTP_CID_ASCONF:
+				if (asoc->peer.asconf_capable == 0)
+					break;
+
+				asoc->peer.asconf_capable = 0;
+				sctp_add_cmd_sf(cmds, SCTP_CMD_TIMER_STOP,
 					SCTP_TO(SCTP_EVENT_TIMEOUT_T4_RTO));
+				break;
+			default:
+				break;
+			}
 			break;
+		}
 		default:
 			break;
 		}
-		break;
-	}
-	default:
-		break;
 	}
 }
 
diff --git a/net/sctp/sm_statefuns.c b/net/sctp/sm_statefuns.c
index a907bab..55a61aa 100644
--- a/net/sctp/sm_statefuns.c
+++ b/net/sctp/sm_statefuns.c
@@ -3165,7 +3165,6 @@ sctp_disposition_t sctp_sf_operr_notify(const struct sctp_endpoint *ep,
 					sctp_cmd_seq_t *commands)
 {
 	struct sctp_chunk *chunk = arg;
-	struct sctp_ulpevent *ev;
 
 	if (!sctp_vtag_verify(chunk, asoc))
 		return sctp_sf_pdiscard(ep, asoc, type, arg, commands);
@@ -3175,21 +3174,10 @@ sctp_disposition_t sctp_sf_operr_notify(const struct sctp_endpoint *ep,
 		return sctp_sf_violation_chunklen(ep, asoc, type, arg,
 						  commands);
 
-	while (chunk->chunk_end > chunk->skb->data) {
-		ev = sctp_ulpevent_make_remote_error(asoc, chunk, 0,
-						     GFP_ATOMIC);
-		if (!ev)
-			goto nomem;
+	sctp_add_cmd_sf(commands, SCTP_CMD_PROCESS_OPERR,
+			SCTP_CHUNK(chunk));
 
-		sctp_add_cmd_sf(commands, SCTP_CMD_EVENT_ULP,
-				SCTP_ULPEVENT(ev));
-		sctp_add_cmd_sf(commands, SCTP_CMD_PROCESS_OPERR,
-				SCTP_CHUNK(chunk));
-	}
 	return SCTP_DISPOSITION_CONSUME;
-
-nomem:
-	return SCTP_DISPOSITION_NOMEM;
 }
 
 /*