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

Pull networking fixes from David Miller:
 "Famouse last words: "final pull request" :-)

  I'm sending this because Jason Wang's fixes are pretty important

   1) Add missing per-cpu stats initialization to ip6_vti.  Otherwise
      lockdep spits out a call trace.  From Li RongQing.

   2) Fix NULL oops in wireless hwsim, from Javier Lopez

   3) TIPC deferred packet queue unlink must NULL out skb->next to avoid
      crashes.  From Erik Hugne

   4) Fix access to uninitialized buffer in nf_nat netfilter code, from
      Daniel Borkmann

   5) Fix lifetime of ipv6 loopback and SIT tunnel addresses, otherwise
      they basically timeout immediately.  From Hannes Frederic Sowa

   6) Fix DMA unmapping of TSO packets in bnx2x driver, from Michal
      Schmidt

   7) Do not allow L2 forwarding offload via macvtap device, the way
      things are now it will not end up being forwaded at all.  From
      Jason Wang

   8) Fix transmit queue selection via ndo_dfwd_start_xmit(), fixing
      things like applying NETIF_F_LLTX to the wrong device (!!) and
      eliding the proper transmit watchdog handling

   9) qlcnic driver was not updating tx statistics at all, from Manish
      Chopra"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
  qlcnic: Fix ethtool statistics length calculation
  qlcnic: Fix bug in TX statistics
  net: core: explicitly select a txq before doing l2 forwarding
  macvlan: forbid L2 fowarding offload for macvtap
  bnx2x: fix DMA unmapping of TSO split BDs
  ipv6: add link-local, sit and loopback address with INFINITY_LIFE_TIME
  bnx2x: prevent WARN during driver unload
  tipc: correctly unlink packets from deferred packet queue
  ipv6: pcpu_tstats.syncp should be initialised in ip6_vti.c
  netfilter: only warn once on wrong seqadj usage
  netfilter: nf_nat: fix access to uninitialized buffer in IRC NAT helper
  NFC: Fix target mode p2p link establishment
  iwlwifi: add new devices for 7265 series
  mac80211: move "bufferable MMPDU" check to fix AP mode scan
  mac80211_hwsim: Fix NULL pointer dereference

12 files changed, 83 insertions, 38 deletions

diff --git a/net/core/dev.c b/net/core/dev.c
index 4fc17221545..0ce469e5ec8 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -2539,7 +2539,7 @@ static inline int skb_needs_linearize(struct sk_buff *skb,
 }
 
 int dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev,
-			struct netdev_queue *txq, void *accel_priv)
+			struct netdev_queue *txq)
 {
 	const struct net_device_ops *ops = dev->netdev_ops;
 	int rc = NETDEV_TX_OK;
@@ -2605,13 +2605,10 @@ int dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev,
 			dev_queue_xmit_nit(skb, dev);
 
 		skb_len = skb->len;
-		if (accel_priv)
-			rc = ops->ndo_dfwd_start_xmit(skb, dev, accel_priv);
-		else
 			rc = ops->ndo_start_xmit(skb, dev);
 
 		trace_net_dev_xmit(skb, rc, dev, skb_len);
-		if (rc == NETDEV_TX_OK && txq)
+		if (rc == NETDEV_TX_OK)
 			txq_trans_update(txq);
 		return rc;
 	}
@@ -2627,10 +2624,7 @@ gso:
 			dev_queue_xmit_nit(nskb, dev);
 
 		skb_len = nskb->len;
-		if (accel_priv)
-			rc = ops->ndo_dfwd_start_xmit(nskb, dev, accel_priv);
-		else
-			rc = ops->ndo_start_xmit(nskb, dev);
+		rc = ops->ndo_start_xmit(nskb, dev);
 		trace_net_dev_xmit(nskb, rc, dev, skb_len);
 		if (unlikely(rc != NETDEV_TX_OK)) {
 			if (rc & ~NETDEV_TX_MASK)
@@ -2811,7 +2805,7 @@ EXPORT_SYMBOL(dev_loopback_xmit);
  *      the BH enable code must have IRQs enabled so that it will not deadlock.
  *          --BLG
  */
-int dev_queue_xmit(struct sk_buff *skb)
+int __dev_queue_xmit(struct sk_buff *skb, void *accel_priv)
 {
 	struct net_device *dev = skb->dev;
 	struct netdev_queue *txq;
@@ -2827,7 +2821,7 @@ int dev_queue_xmit(struct sk_buff *skb)
 
 	skb_update_prio(skb);
 
-	txq = netdev_pick_tx(dev, skb);
+	txq = netdev_pick_tx(dev, skb, accel_priv);
 	q = rcu_dereference_bh(txq->qdisc);
 
 #ifdef CONFIG_NET_CLS_ACT
@@ -2863,7 +2857,7 @@ int dev_queue_xmit(struct sk_buff *skb)
 
 			if (!netif_xmit_stopped(txq)) {
 				__this_cpu_inc(xmit_recursion);
-				rc = dev_hard_start_xmit(skb, dev, txq, NULL);
+				rc = dev_hard_start_xmit(skb, dev, txq);
 				__this_cpu_dec(xmit_recursion);
 				if (dev_xmit_complete(rc)) {
 					HARD_TX_UNLOCK(dev, txq);
@@ -2892,8 +2886,19 @@ out:
 	rcu_read_unlock_bh();
 	return rc;
 }
+
+int dev_queue_xmit(struct sk_buff *skb)
+{
+	return __dev_queue_xmit(skb, NULL);
+}
 EXPORT_SYMBOL(dev_queue_xmit);
 
+int dev_queue_xmit_accel(struct sk_buff *skb, void *accel_priv)
+{
+	return __dev_queue_xmit(skb, accel_priv);
+}
+EXPORT_SYMBOL(dev_queue_xmit_accel);
+
 
 /*=======================================================================
 			Receiver routines
diff --git a/net/core/flow_dissector.c b/net/core/flow_dissector.c
index d6ef1732250..2fc5beaf578 100644
--- a/net/core/flow_dissector.c
+++ b/net/core/flow_dissector.c
@@ -395,17 +395,21 @@ u16 __netdev_pick_tx(struct net_device *dev, struct sk_buff *skb)
 EXPORT_SYMBOL(__netdev_pick_tx);
 
 struct netdev_queue *netdev_pick_tx(struct net_device *dev,
-				    struct sk_buff *skb)
+				    struct sk_buff *skb,
+				    void *accel_priv)
 {
 	int queue_index = 0;
 
 	if (dev->real_num_tx_queues != 1) {
 		const struct net_device_ops *ops = dev->netdev_ops;
 		if (ops->ndo_select_queue)
-			queue_index = ops->ndo_select_queue(dev, skb);
+			queue_index = ops->ndo_select_queue(dev, skb,
+							    accel_priv);
 		else
 			queue_index = __netdev_pick_tx(dev, skb);
-		queue_index = dev_cap_txqueue(dev, queue_index);
+
+		if (!accel_priv)
+			queue_index = dev_cap_txqueue(dev, queue_index);
 	}
 
 	skb_set_queue_mapping(skb, queue_index);
diff --git a/net/core/netpoll.c b/net/core/netpoll.c
index 30309787463..19fe9c717ce 100644
--- a/net/core/netpoll.c
+++ b/net/core/netpoll.c
@@ -375,7 +375,7 @@ void netpoll_send_skb_on_dev(struct netpoll *np, struct sk_buff *skb,
 	if (skb_queue_len(&npinfo->txq) == 0 && !netpoll_owner_active(dev)) {
 		struct netdev_queue *txq;
 
-		txq = netdev_pick_tx(dev, skb);
+		txq = netdev_pick_tx(dev, skb, NULL);
 
 		/* try until next clock tick */
 		for (tries = jiffies_to_usecs(1)/USEC_PER_POLL;
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index f62c72b59f8..abe46a4228c 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -2509,7 +2509,8 @@ static void add_addr(struct inet6_dev *idev, const struct in6_addr *addr,
 	struct inet6_ifaddr *ifp;
 
 	ifp = ipv6_add_addr(idev, addr, NULL, plen,
-			    scope, IFA_F_PERMANENT, 0, 0);
+			    scope, IFA_F_PERMANENT,
+			    INFINITY_LIFE_TIME, INFINITY_LIFE_TIME);
 	if (!IS_ERR(ifp)) {
 		spin_lock_bh(&ifp->lock);
 		ifp->flags &= ~IFA_F_TENTATIVE;
@@ -2637,7 +2638,8 @@ static void addrconf_add_linklocal(struct inet6_dev *idev, const struct in6_addr
 #endif
 
 
-	ifp = ipv6_add_addr(idev, addr, NULL, 64, IFA_LINK, addr_flags, 0, 0);
+	ifp = ipv6_add_addr(idev, addr, NULL, 64, IFA_LINK, addr_flags,
+			    INFINITY_LIFE_TIME, INFINITY_LIFE_TIME);
 	if (!IS_ERR(ifp)) {
 		addrconf_prefix_route(&ifp->addr, ifp->prefix_len, idev->dev, 0, 0);
 		addrconf_dad_start(ifp);
diff --git a/net/ipv6/ip6_vti.c b/net/ipv6/ip6_vti.c
index a4564b05c47..7b42d5ef868 100644
--- a/net/ipv6/ip6_vti.c
+++ b/net/ipv6/ip6_vti.c
@@ -732,12 +732,18 @@ static void vti6_dev_setup(struct net_device *dev)
 static inline int vti6_dev_init_gen(struct net_device *dev)
 {
 	struct ip6_tnl *t = netdev_priv(dev);
+	int i;
 
 	t->dev = dev;
 	t->net = dev_net(dev);
 	dev->tstats = alloc_percpu(struct pcpu_tstats);
 	if (!dev->tstats)
 		return -ENOMEM;
+	for_each_possible_cpu(i) {
+		struct pcpu_tstats *stats;
+		stats = per_cpu_ptr(dev->tstats, i);
+		u64_stats_init(&stats->syncp);
+	}
 	return 0;
 }
 
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index 36c3a4cbcab..a0757913046 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -1061,7 +1061,8 @@ static void ieee80211_uninit(struct net_device *dev)
 }
 
 static u16 ieee80211_netdev_select_queue(struct net_device *dev,
-					 struct sk_buff *skb)
+					 struct sk_buff *skb,
+					 void *accel_priv)
 {
 	return ieee80211_select_queue(IEEE80211_DEV_TO_SUB_IF(dev), skb);
 }
@@ -1078,7 +1079,8 @@ static const struct net_device_ops ieee80211_dataif_ops = {
 };
 
 static u16 ieee80211_monitor_select_queue(struct net_device *dev,
-					  struct sk_buff *skb)
+					  struct sk_buff *skb,
+					  void *accel_priv)
 {
 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 	struct ieee80211_local *local = sdata->local;
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index c558b246ef0..ca7fa7f0613 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -463,7 +463,6 @@ ieee80211_tx_h_unicast_ps_buf(struct ieee80211_tx_data *tx)
 {
 	struct sta_info *sta = tx->sta;
 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb);
-	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)tx->skb->data;
 	struct ieee80211_local *local = tx->local;
 
 	if (unlikely(!sta))
@@ -474,15 +473,6 @@ ieee80211_tx_h_unicast_ps_buf(struct ieee80211_tx_data *tx)
 		     !(info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER))) {
 		int ac = skb_get_queue_mapping(tx->skb);
 
-		/* only deauth, disassoc and action are bufferable MMPDUs */
-		if (ieee80211_is_mgmt(hdr->frame_control) &&
-		    !ieee80211_is_deauth(hdr->frame_control) &&
-		    !ieee80211_is_disassoc(hdr->frame_control) &&
-		    !ieee80211_is_action(hdr->frame_control)) {
-			info->flags |= IEEE80211_TX_CTL_NO_PS_BUFFER;
-			return TX_CONTINUE;
-		}
-
 		ps_dbg(sta->sdata, "STA %pM aid %d: PS buffer for AC %d\n",
 		       sta->sta.addr, sta->sta.aid, ac);
 		if (tx->local->total_ps_buffered >= TOTAL_MAX_TX_BUFFER)
@@ -525,9 +515,22 @@ ieee80211_tx_h_unicast_ps_buf(struct ieee80211_tx_data *tx)
 static ieee80211_tx_result debug_noinline
 ieee80211_tx_h_ps_buf(struct ieee80211_tx_data *tx)
 {
+	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb);
+	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)tx->skb->data;
+
 	if (unlikely(tx->flags & IEEE80211_TX_PS_BUFFERED))
 		return TX_CONTINUE;
 
+	/* only deauth, disassoc and action are bufferable MMPDUs */
+	if (ieee80211_is_mgmt(hdr->frame_control) &&
+	    !ieee80211_is_deauth(hdr->frame_control) &&
+	    !ieee80211_is_disassoc(hdr->frame_control) &&
+	    !ieee80211_is_action(hdr->frame_control)) {
+		if (tx->flags & IEEE80211_TX_UNICAST)
+			info->flags |= IEEE80211_TX_CTL_NO_PS_BUFFER;
+		return TX_CONTINUE;
+	}
+
 	if (tx->flags & IEEE80211_TX_UNICAST)
 		return ieee80211_tx_h_unicast_ps_buf(tx);
 	else
diff --git a/net/netfilter/nf_conntrack_seqadj.c b/net/netfilter/nf_conntrack_seqadj.c
index b2d38da6782..f6e2ae91a80 100644
--- a/net/netfilter/nf_conntrack_seqadj.c
+++ b/net/netfilter/nf_conntrack_seqadj.c
@@ -37,7 +37,7 @@ int nf_ct_seqadj_set(struct nf_conn *ct, enum ip_conntrack_info ctinfo,
 		return 0;
 
 	if (unlikely(!seqadj)) {
-		WARN(1, "Wrong seqadj usage, missing nfct_seqadj_ext_add()\n");
+		WARN_ONCE(1, "Missing nfct_seqadj_ext_add() setup call\n");
 		return 0;
 	}
 
diff --git a/net/netfilter/nf_nat_irc.c b/net/netfilter/nf_nat_irc.c
index f02b3605823..1fb2258c353 100644
--- a/net/netfilter/nf_nat_irc.c
+++ b/net/netfilter/nf_nat_irc.c
@@ -34,10 +34,14 @@ static unsigned int help(struct sk_buff *skb,
 			 struct nf_conntrack_expect *exp)
 {
 	char buffer[sizeof("4294967296 65635")];
+	struct nf_conn *ct = exp->master;
+	union nf_inet_addr newaddr;
 	u_int16_t port;
 	unsigned int ret;
 
 	/* Reply comes from server. */
+	newaddr = ct->tuplehash[IP_CT_DIR_REPLY].tuple.dst.u3;
+
 	exp->saved_proto.tcp.port = exp->tuple.dst.u.tcp.port;
 	exp->dir = IP_CT_DIR_REPLY;
 	exp->expectfn = nf_nat_follow_master;
@@ -57,17 +61,35 @@ static unsigned int help(struct sk_buff *skb,
 	}
 
 	if (port == 0) {
-		nf_ct_helper_log(skb, exp->master, "all ports in use");
+		nf_ct_helper_log(skb, ct, "all ports in use");
 		return NF_DROP;
 	}
 
-	ret = nf_nat_mangle_tcp_packet(skb, exp->master, ctinfo,
-				       protoff, matchoff, matchlen, buffer,
-				       strlen(buffer));
+	/* strlen("\1DCC CHAT chat AAAAAAAA P\1\n")=27
+	 * strlen("\1DCC SCHAT chat AAAAAAAA P\1\n")=28
+	 * strlen("\1DCC SEND F AAAAAAAA P S\1\n")=26
+	 * strlen("\1DCC MOVE F AAAAAAAA P S\1\n")=26
+	 * strlen("\1DCC TSEND F AAAAAAAA P S\1\n")=27
+	 *
+	 * AAAAAAAAA: bound addr (1.0.0.0==16777216, min 8 digits,
+	 *                        255.255.255.255==4294967296, 10 digits)
+	 * P:         bound port (min 1 d, max 5d (65635))
+	 * F:         filename   (min 1 d )
+	 * S:         size       (min 1 d )
+	 * 0x01, \n:  terminators
+	 */
+	/* AAA = "us", ie. where server normally talks to. */
+	snprintf(buffer, sizeof(buffer), "%u %u", ntohl(newaddr.ip), port);
+	pr_debug("nf_nat_irc: inserting '%s' == %pI4, port %u\n",
+		 buffer, &newaddr.ip, port);
+
+	ret = nf_nat_mangle_tcp_packet(skb, ct, ctinfo, protoff, matchoff,
+				       matchlen, buffer, strlen(buffer));
 	if (ret != NF_ACCEPT) {
-		nf_ct_helper_log(skb, exp->master, "cannot mangle packet");
+		nf_ct_helper_log(skb, ct, "cannot mangle packet");
 		nf_ct_unexpect_related(exp);
 	}
+
 	return ret;
 }
 
diff --git a/net/nfc/core.c b/net/nfc/core.c
index 872529105ab..83b9927e7d1 100644
--- a/net/nfc/core.c
+++ b/net/nfc/core.c
@@ -384,7 +384,7 @@ int nfc_dep_link_is_up(struct nfc_dev *dev, u32 target_idx,
 {
 	dev->dep_link_up = true;
 
-	if (!dev->active_target) {
+	if (!dev->active_target && rf_mode == NFC_RF_INITIATOR) {
 		struct nfc_target *target;
 
 		target = nfc_find_target(dev, target_idx);
diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c
index 922a09406ba..7fc899a943a 100644
--- a/net/sched/sch_generic.c
+++ b/net/sched/sch_generic.c
@@ -126,7 +126,7 @@ int sch_direct_xmit(struct sk_buff *skb, struct Qdisc *q,
 
 	HARD_TX_LOCK(dev, txq, smp_processor_id());
 	if (!netif_xmit_frozen_or_stopped(txq))
-		ret = dev_hard_start_xmit(skb, dev, txq, NULL);
+		ret = dev_hard_start_xmit(skb, dev, txq);
 
 	HARD_TX_UNLOCK(dev, txq);
 
diff --git a/net/tipc/link.c b/net/tipc/link.c
index 69cd9bf3f56..13b98774582 100644
--- a/net/tipc/link.c
+++ b/net/tipc/link.c
@@ -1498,6 +1498,7 @@ void tipc_recv_msg(struct sk_buff *head, struct tipc_bearer *b_ptr)
 		int type;
 
 		head = head->next;
+		buf->next = NULL;
 
 		/* Ensure bearer is still enabled */
 		if (unlikely(!b_ptr->active))