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

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1745 commits)
  dp83640: free packet queues on remove
  dp83640: use proper function to free transmit time stamping packets
  ipv6: Do not use routes from locally generated RAs
  |PATCH net-next] tg3: add tx_dropped counter
  be2net: don't create multiple RX/TX rings in multi channel mode
  be2net: don't create multiple TXQs in BE2
  be2net: refactor VF setup/teardown code into be_vf_setup/clear()
  be2net: add vlan/rx-mode/flow-control config to be_setup()
  net_sched: cls_flow: use skb_header_pointer()
  ipv4: avoid useless call of the function check_peer_pmtu
  TCP: remove TCP_DEBUG
  net: Fix driver name for mdio-gpio.c
  ipv4: tcp: fix TOS value in ACK messages sent from TIME_WAIT
  rtnetlink: Add missing manual netlink notification in dev_change_net_namespaces
  ipv4: fix ipsec forward performance regression
  jme: fix irq storm after suspend/resume
  route: fix ICMP redirect validation
  net: hold sock reference while processing tx timestamps
  tcp: md5: add more const attributes
  Add ethtool -g support to virtio_net
  ...

Fix up conflicts in:
 - drivers/net/Kconfig:
	The split-up generated a trivial conflict with removal of a
	stale reference to Documentation/networking/net-modules.txt.
	Remove it from the new location instead.
 - fs/sysfs/dir.c:
	Fairly nasty conflicts with the sysfs rb-tree usage, conflicting
	with Eric Biederman's changes for tagged directories.

1 files changed, 54 insertions, 27 deletions

diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 12368c58606..e39239e6426 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -428,7 +428,7 @@ static struct inet6_dev * ipv6_add_dev(struct net_device *dev)
 	ndev->tstamp = jiffies;
 	addrconf_sysctl_register(ndev);
 	/* protected by rtnl_lock */
-	rcu_assign_pointer(dev->ip6_ptr, ndev);
+	RCU_INIT_POINTER(dev->ip6_ptr, ndev);
 
 	/* Join all-node multicast group */
 	ipv6_dev_mc_inc(dev, &in6addr_linklocal_allnodes);
@@ -824,12 +824,13 @@ static int ipv6_create_tempaddr(struct inet6_ifaddr *ifp, struct inet6_ifaddr *i
 {
 	struct inet6_dev *idev = ifp->idev;
 	struct in6_addr addr, *tmpaddr;
-	unsigned long tmp_prefered_lft, tmp_valid_lft, tmp_cstamp, tmp_tstamp, age;
+	unsigned long tmp_prefered_lft, tmp_valid_lft, tmp_tstamp, age;
 	unsigned long regen_advance;
 	int tmp_plen;
 	int ret = 0;
 	int max_addresses;
 	u32 addr_flags;
+	unsigned long now = jiffies;
 
 	write_lock(&idev->lock);
 	if (ift) {
@@ -874,7 +875,7 @@ retry:
 		goto out;
 	}
 	memcpy(&addr.s6_addr[8], idev->rndid, 8);
-	age = (jiffies - ifp->tstamp) / HZ;
+	age = (now - ifp->tstamp) / HZ;
 	tmp_valid_lft = min_t(__u32,
 			      ifp->valid_lft,
 			      idev->cnf.temp_valid_lft + age);
@@ -884,7 +885,6 @@ retry:
 				 idev->cnf.max_desync_factor);
 	tmp_plen = ifp->prefix_len;
 	max_addresses = idev->cnf.max_addresses;
-	tmp_cstamp = ifp->cstamp;
 	tmp_tstamp = ifp->tstamp;
 	spin_unlock_bh(&ifp->lock);
 
@@ -929,7 +929,7 @@ retry:
 	ift->ifpub = ifp;
 	ift->valid_lft = tmp_valid_lft;
 	ift->prefered_lft = tmp_prefered_lft;
-	ift->cstamp = tmp_cstamp;
+	ift->cstamp = now;
 	ift->tstamp = tmp_tstamp;
 	spin_unlock_bh(&ift->lock);
 
@@ -1999,25 +1999,50 @@ ok:
 #ifdef CONFIG_IPV6_PRIVACY
 			read_lock_bh(&in6_dev->lock);
 			/* update all temporary addresses in the list */
-			list_for_each_entry(ift, &in6_dev->tempaddr_list, tmp_list) {
-				/*
-				 * When adjusting the lifetimes of an existing
-				 * temporary address, only lower the lifetimes.
-				 * Implementations must not increase the
-				 * lifetimes of an existing temporary address
-				 * when processing a Prefix Information Option.
-				 */
+			list_for_each_entry(ift, &in6_dev->tempaddr_list,
+					    tmp_list) {
+				int age, max_valid, max_prefered;
+
 				if (ifp != ift->ifpub)
 					continue;
 
+				/*
+				 * RFC 4941 section 3.3:
+				 * If a received option will extend the lifetime
+				 * of a public address, the lifetimes of
+				 * temporary addresses should be extended,
+				 * subject to the overall constraint that no
+				 * temporary addresses should ever remain
+				 * "valid" or "preferred" for a time longer than
+				 * (TEMP_VALID_LIFETIME) or
+				 * (TEMP_PREFERRED_LIFETIME - DESYNC_FACTOR),
+				 * respectively.
+				 */
+				age = (now - ift->cstamp) / HZ;
+				max_valid = in6_dev->cnf.temp_valid_lft - age;
+				if (max_valid < 0)
+					max_valid = 0;
+
+				max_prefered = in6_dev->cnf.temp_prefered_lft -
+					       in6_dev->cnf.max_desync_factor -
+					       age;
+				if (max_prefered < 0)
+					max_prefered = 0;
+
+				if (valid_lft > max_valid)
+					valid_lft = max_valid;
+
+				if (prefered_lft > max_prefered)
+					prefered_lft = max_prefered;
+
 				spin_lock(&ift->lock);
 				flags = ift->flags;
-				if (ift->valid_lft > valid_lft &&
-				    ift->valid_lft - valid_lft > (jiffies - ift->tstamp) / HZ)
-					ift->valid_lft = valid_lft + (jiffies - ift->tstamp) / HZ;
-				if (ift->prefered_lft > prefered_lft &&
-				    ift->prefered_lft - prefered_lft > (jiffies - ift->tstamp) / HZ)
-					ift->prefered_lft = prefered_lft + (jiffies - ift->tstamp) / HZ;
+				ift->valid_lft = valid_lft;
+				ift->prefered_lft = prefered_lft;
+				ift->tstamp = now;
+				if (prefered_lft > 0)
+					ift->flags &= ~IFA_F_DEPRECATED;
+
 				spin_unlock(&ift->lock);
 				if (!(flags&IFA_F_TENTATIVE))
 					ipv6_ifa_notify(0, ift);
@@ -2025,9 +2050,11 @@ ok:
 
 			if ((create || list_empty(&in6_dev->tempaddr_list)) && in6_dev->cnf.use_tempaddr > 0) {
 				/*
-				 * When a new public address is created as described in [ADDRCONF],
-				 * also create a new temporary address. Also create a temporary
-				 * address if it's enabled but no temporary address currently exists.
+				 * When a new public address is created as
+				 * described in [ADDRCONF], also create a new
+				 * temporary address. Also create a temporary
+				 * address if it's enabled but no temporary
+				 * address currently exists.
 				 */
 				read_unlock_bh(&in6_dev->lock);
 				ipv6_create_tempaddr(ifp, NULL);
@@ -2706,7 +2733,7 @@ static int addrconf_ifdown(struct net_device *dev, int how)
 		idev->dead = 1;
 
 		/* protected by rtnl_lock */
-		rcu_assign_pointer(dev->ip6_ptr, NULL);
+		RCU_INIT_POINTER(dev->ip6_ptr, NULL);
 
 		/* Step 1.5: remove snmp6 entry */
 		snmp6_unregister_dev(idev);
@@ -2969,12 +2996,12 @@ static void addrconf_dad_completed(struct inet6_ifaddr *ifp)
 
 	ipv6_ifa_notify(RTM_NEWADDR, ifp);
 
-	/* If added prefix is link local and forwarding is off,
-	   start sending router solicitations.
+	/* If added prefix is link local and we are prepared to process
+	   router advertisements, start sending router solicitations.
 	 */
 
-	if ((ifp->idev->cnf.forwarding == 0 ||
-	     ifp->idev->cnf.forwarding == 2) &&
+	if (((ifp->idev->cnf.accept_ra == 1 && !ifp->idev->cnf.forwarding) ||
+	     ifp->idev->cnf.accept_ra == 2) &&
 	    ifp->idev->cnf.rtr_solicits > 0 &&
 	    (dev->flags&IFF_LOOPBACK) == 0 &&
 	    (ipv6_addr_type(&ifp->addr) & IPV6_ADDR_LINKLOCAL)) {