25 files changed, 155 insertions, 81 deletions

diff --git a/net/caif/cfserl.c b/net/caif/cfserl.c
index cb4325a3dc83..965c5baace40 100644
--- a/net/caif/cfserl.c
+++ b/net/caif/cfserl.c
@@ -59,16 +59,18 @@ static int cfserl_receive(struct cflayer *l, struct cfpkt *newpkt)
         u8 stx = CFSERL_STX;
         int ret;
         u16 expectlen = 0;
+
         caif_assert(newpkt != NULL);
         spin_lock(&layr->sync);
 
         if (layr->incomplete_frm != NULL) {
-
                 layr->incomplete_frm =
                     cfpkt_append(layr->incomplete_frm, newpkt, expectlen);
                 pkt = layr->incomplete_frm;
-                if (pkt == NULL)
+                if (pkt == NULL) {
+                        spin_unlock(&layr->sync);
                         return -ENOMEM;
+                }
         } else {
                 pkt = newpkt;
         }
diff --git a/net/core/datagram.c b/net/core/datagram.c
index e0097531417a..f5b6f43a4c2e 100644
--- a/net/core/datagram.c
+++ b/net/core/datagram.c
@@ -229,15 +229,17 @@ EXPORT_SYMBOL(skb_free_datagram);
 
 void skb_free_datagram_locked(struct sock *sk, struct sk_buff *skb)
 {
+        bool slow;
+
         if (likely(atomic_read(&skb->users) == 1))
                 smp_rmb();
         else if (likely(!atomic_dec_and_test(&skb->users)))
                 return;
 
-        lock_sock_bh(sk);
+        slow = lock_sock_fast(sk);
         skb_orphan(skb);
         sk_mem_reclaim_partial(sk);
-        unlock_sock_bh(sk);
+        unlock_sock_fast(sk, slow);
 
         /* skb is now orphaned, can be freed outside of locked section */
         __kfree_skb(skb);
diff --git a/net/core/drop_monitor.c b/net/core/drop_monitor.c
index cf208d8042b1..ad41529fb60f 100644
--- a/net/core/drop_monitor.c
+++ b/net/core/drop_monitor.c
@@ -172,12 +172,12 @@ out:
         return;
 }
 
-static void trace_kfree_skb_hit(struct sk_buff *skb, void *location)
+static void trace_kfree_skb_hit(void *ignore, struct sk_buff *skb, void *location)
 {
         trace_drop_common(skb, location);
 }
 
-static void trace_napi_poll_hit(struct napi_struct *napi)
+static void trace_napi_poll_hit(void *ignore, struct napi_struct *napi)
 {
         struct dm_hw_stat_delta *new_stat;
 
@@ -225,12 +225,12 @@ static int set_all_monitor_traces(int state)
 
         switch (state) {
         case TRACE_ON:
-                rc |= register_trace_kfree_skb(trace_kfree_skb_hit);
-                rc |= register_trace_napi_poll(trace_napi_poll_hit);
+                rc |= register_trace_kfree_skb(trace_kfree_skb_hit, NULL);
+                rc |= register_trace_napi_poll(trace_napi_poll_hit, NULL);
                 break;
         case TRACE_OFF:
-                rc |= unregister_trace_kfree_skb(trace_kfree_skb_hit);
-                rc |= unregister_trace_napi_poll(trace_napi_poll_hit);
+                rc |= unregister_trace_kfree_skb(trace_kfree_skb_hit, NULL);
+                rc |= unregister_trace_napi_poll(trace_napi_poll_hit, NULL);
 
                 tracepoint_synchronize_unregister();
 
diff --git a/net/core/neighbour.c b/net/core/neighbour.c
index bff37908bd55..6ba1c0eece03 100644
--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c
@@ -934,6 +934,7 @@ int __neigh_event_send(struct neighbour *neigh, struct sk_buff *skb)
                                 kfree_skb(buff);
                                 NEIGH_CACHE_STAT_INC(neigh->tbl, unres_discards);
                         }
+                        skb_dst_force(skb);
                         __skb_queue_tail(&neigh->arp_queue, skb);
                 }
                 rc = 1;
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 7ab86f3a1ea4..1a2af24e9e3d 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -650,11 +650,12 @@ static inline int rtnl_vfinfo_size(const struct net_device *dev)
         if (dev->dev.parent && dev_is_pci(dev->dev.parent)) {
 
                 int num_vfs = dev_num_vf(dev->dev.parent);
-                size_t size = nlmsg_total_size(sizeof(struct nlattr));
-                size += nlmsg_total_size(num_vfs * sizeof(struct nlattr));
-                size += num_vfs * (sizeof(struct ifla_vf_mac) +
-                                  sizeof(struct ifla_vf_vlan) +
-                                  sizeof(struct ifla_vf_tx_rate));
+                size_t size = nla_total_size(sizeof(struct nlattr));
+                size += nla_total_size(num_vfs * sizeof(struct nlattr));
+                size += num_vfs *
+                        (nla_total_size(sizeof(struct ifla_vf_mac)) +
+                         nla_total_size(sizeof(struct ifla_vf_vlan)) +
+                         nla_total_size(sizeof(struct ifla_vf_tx_rate)));
                 return size;
         } else
                 return 0;
@@ -722,14 +723,13 @@ static int rtnl_vf_ports_fill(struct sk_buff *skb, struct net_device *dev)
 
         for (vf = 0; vf < dev_num_vf(dev->dev.parent); vf++) {
                 vf_port = nla_nest_start(skb, IFLA_VF_PORT);
-                if (!vf_port) {
-                        nla_nest_cancel(skb, vf_ports);
-                        return -EMSGSIZE;
-                }
+                if (!vf_port)
+                        goto nla_put_failure;
                 NLA_PUT_U32(skb, IFLA_PORT_VF, vf);
                 err = dev->netdev_ops->ndo_get_vf_port(dev, vf, skb);
+                if (err == -EMSGSIZE)
+                        goto nla_put_failure;
                 if (err) {
-nla_put_failure:
                         nla_nest_cancel(skb, vf_port);
                         continue;
                 }
@@ -739,6 +739,10 @@ nla_put_failure:
         nla_nest_end(skb, vf_ports);
 
         return 0;
+
+nla_put_failure:
+        nla_nest_cancel(skb, vf_ports);
+        return -EMSGSIZE;
 }
 
 static int rtnl_port_self_fill(struct sk_buff *skb, struct net_device *dev)
@@ -753,7 +757,7 @@ static int rtnl_port_self_fill(struct sk_buff *skb, struct net_device *dev)
         err = dev->netdev_ops->ndo_get_vf_port(dev, PORT_SELF_VF, skb);
         if (err) {
                 nla_nest_cancel(skb, port_self);
-                return err;
+                return (err == -EMSGSIZE) ? err : 0;
         }
 
         nla_nest_end(skb, port_self);
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index f8abf68e3988..9f07e749d7b1 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -482,22 +482,22 @@ EXPORT_SYMBOL(consume_skb);
  *      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)
+bool skb_recycle_check(struct sk_buff *skb, int skb_size)
 {
         struct skb_shared_info *shinfo;
 
         if (irqs_disabled())
-                return 0;
+                return false;
 
         if (skb_is_nonlinear(skb) || skb->fclone != SKB_FCLONE_UNAVAILABLE)
-                return 0;
+                return false;
 
         skb_size = SKB_DATA_ALIGN(skb_size + NET_SKB_PAD);
         if (skb_end_pointer(skb) - skb->head < skb_size)
-                return 0;
+                return false;
 
         if (skb_shared(skb) || skb_cloned(skb))
-                return 0;
+                return false;
 
         skb_release_head_state(skb);
 
@@ -509,7 +509,7 @@ int skb_recycle_check(struct sk_buff *skb, int skb_size)
         skb->data = skb->head + NET_SKB_PAD;
         skb_reset_tail_pointer(skb);
 
-        return 1;
+        return true;
 }
 EXPORT_SYMBOL(skb_recycle_check);
 
@@ -2965,6 +2965,34 @@ int skb_cow_data(struct sk_buff *skb, int tailbits, struct sk_buff **trailer)
 }
 EXPORT_SYMBOL_GPL(skb_cow_data);
 
+static void sock_rmem_free(struct sk_buff *skb)
+{
+        struct sock *sk = skb->sk;
+
+        atomic_sub(skb->truesize, &sk->sk_rmem_alloc);
+}
+
+/*
+ * Note: We dont mem charge error packets (no sk_forward_alloc changes)
+ */
+int sock_queue_err_skb(struct sock *sk, struct sk_buff *skb)
+{
+        if (atomic_read(&sk->sk_rmem_alloc) + skb->truesize >=
+            (unsigned)sk->sk_rcvbuf)
+                return -ENOMEM;
+
+        skb_orphan(skb);
+        skb->sk = sk;
+        skb->destructor = sock_rmem_free;
+        atomic_add(skb->truesize, &sk->sk_rmem_alloc);
+
+        skb_queue_tail(&sk->sk_error_queue, skb);
+        if (!sock_flag(sk, SOCK_DEAD))
+                sk->sk_data_ready(sk, skb->len);
+        return 0;
+}
+EXPORT_SYMBOL(sock_queue_err_skb);
+
 void skb_tstamp_tx(struct sk_buff *orig_skb,
                 struct skb_shared_hwtstamps *hwtstamps)
 {
@@ -2996,7 +3024,9 @@ void skb_tstamp_tx(struct sk_buff *orig_skb,
         memset(serr, 0, sizeof(*serr));
         serr->ee.ee_errno = ENOMSG;
         serr->ee.ee_origin = SO_EE_ORIGIN_TIMESTAMPING;
+
         err = sock_queue_err_skb(sk, skb);
+
         if (err)
                 kfree_skb(skb);
 }
diff --git a/net/core/sock.c b/net/core/sock.c
index 37fe9b6adade..2cf7f9f7e775 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -2007,6 +2007,39 @@ void release_sock(struct sock *sk)
 }
 EXPORT_SYMBOL(release_sock);
 
+/**
+ * lock_sock_fast - fast version of lock_sock
+ * @sk: socket
+ *
+ * This version should be used for very small section, where process wont block
+ * return false if fast path is taken
+ *   sk_lock.slock locked, owned = 0, BH disabled
+ * return true if slow path is taken
+ *   sk_lock.slock unlocked, owned = 1, BH enabled
+ */
+bool lock_sock_fast(struct sock *sk)
+{
+        might_sleep();
+        spin_lock_bh(&sk->sk_lock.slock);
+
+        if (!sk->sk_lock.owned)
+                /*
+                 * Note : We must disable BH
+                 */
+                return false;
+
+        __lock_sock(sk);
+        sk->sk_lock.owned = 1;
+        spin_unlock(&sk->sk_lock.slock);
+        /*
+         * The sk_lock has mutex_lock() semantics here:
+         */
+        mutex_acquire(&sk->sk_lock.dep_map, 0, 0, _RET_IP_);
+        local_bh_enable();
+        return true;
+}
+EXPORT_SYMBOL(lock_sock_fast);
+
 int sock_get_timestamp(struct sock *sk, struct timeval __user *userstamp)
 {
         struct timeval tv;
diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c
index 45889103b3e2..856123fe32f9 100644
--- a/net/ipv4/ipmr.c
+++ b/net/ipv4/ipmr.c
@@ -1911,7 +1911,7 @@ static int __ipmr_fill_mroute(struct mr_table *mrt, struct sk_buff *skb,
         struct rtattr *mp_head;
 
         /* If cache is unresolved, don't try to parse IIF and OIF */
-        if (c->mfc_parent > MAXVIFS)
+        if (c->mfc_parent >= MAXVIFS)
                 return -ENOENT;
 
         if (VIF_EXISTS(mrt, c->mfc_parent))
diff --git a/net/ipv4/netfilter/ip_tables.c b/net/ipv4/netfilter/ip_tables.c
index 63958f3394a5..4b6c5ca610fc 100644
--- a/net/ipv4/netfilter/ip_tables.c
+++ b/net/ipv4/netfilter/ip_tables.c
@@ -336,7 +336,7 @@ ipt_do_table(struct sk_buff *skb,
         cpu        = smp_processor_id();
         table_base = private->entries[cpu];
         jumpstack  = (struct ipt_entry **)private->jumpstack[cpu];
-        stackptr   = &private->stackptr[cpu];
+        stackptr   = per_cpu_ptr(private->stackptr, cpu);
         origptr    = *stackptr;
 
         e = get_entry(table_base, private->hook_entry[hook]);
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 3e6dafcb1071..548d575e6cc6 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -2639,7 +2639,7 @@ static void DBGUNDO(struct sock *sk, const char *msg)
         if (sk->sk_family == AF_INET) {
                 printk(KERN_DEBUG "Undo %s %pI4/%u c%u l%u ss%u/%u p%u\n",
                        msg,
-                       &inet->daddr, ntohs(inet->dport),
+                       &inet->inet_daddr, ntohs(inet->inet_dport),
                        tp->snd_cwnd, tcp_left_out(tp),
                        tp->snd_ssthresh, tp->prior_ssthresh,
                        tp->packets_out);
@@ -2649,7 +2649,7 @@ static void DBGUNDO(struct sock *sk, const char *msg)
                 struct ipv6_pinfo *np = inet6_sk(sk);
                 printk(KERN_DEBUG "Undo %s %pI6/%u c%u l%u ss%u/%u p%u\n",
                        msg,
-                       &np->daddr, ntohs(inet->dport),
+                       &np->daddr, ntohs(inet->inet_dport),
                        tp->snd_cwnd, tcp_left_out(tp),
                        tp->snd_ssthresh, tp->prior_ssthresh,
                        tp->packets_out);
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index baeec29fe0f1..eec4ff456e33 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -633,9 +633,9 @@ void __udp4_lib_err(struct sk_buff *skb, u32 info, struct udp_table *udptable)
         if (!inet->recverr) {
                 if (!harderr || sk->sk_state != TCP_ESTABLISHED)
                         goto out;
-        } else {
+        } else
                 ip_icmp_error(sk, skb, err, uh->dest, info, (u8 *)(uh+1));
-        }
+
         sk->sk_err = err;
         sk->sk_error_report(sk);
 out:
@@ -1063,10 +1063,11 @@ static unsigned int first_packet_length(struct sock *sk)
         spin_unlock_bh(&rcvq->lock);
 
         if (!skb_queue_empty(&list_kill)) {
-                lock_sock_bh(sk);
+                bool slow = lock_sock_fast(sk);
+
                 __skb_queue_purge(&list_kill);
                 sk_mem_reclaim_partial(sk);
-                unlock_sock_bh(sk);
+                unlock_sock_fast(sk, slow);
         }
         return res;
 }
@@ -1123,6 +1124,7 @@ int udp_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
         int peeked;
         int err;
         int is_udplite = IS_UDPLITE(sk);
+        bool slow;
 
         /*
          *      Check any passed addresses
@@ -1197,10 +1199,10 @@ out:
         return err;
 
 csum_copy_err:
-        lock_sock_bh(sk);
+        slow = lock_sock_fast(sk);
         if (!skb_kill_datagram(sk, skb, flags))
                 UDP_INC_STATS_USER(sock_net(sk), UDP_MIB_INERRORS, is_udplite);
-        unlock_sock_bh(sk);
+        unlock_sock_fast(sk, slow);
 
         if (noblock)
                 return -EAGAIN;
@@ -1625,9 +1627,9 @@ int udp_rcv(struct sk_buff *skb)
 
 void udp_destroy_sock(struct sock *sk)
 {
-        lock_sock_bh(sk);
+        bool slow = lock_sock_fast(sk);
         udp_flush_pending_frames(sk);
-        unlock_sock_bh(sk);
+        unlock_sock_fast(sk, slow);
 }
 
 /*
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index cd963f64e27c..89425af0684c 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -507,7 +507,7 @@ int ip6_forward(struct sk_buff *skb)
         if (mtu < IPV6_MIN_MTU)
                 mtu = IPV6_MIN_MTU;
 
-        if (skb->len > mtu) {
+        if (skb->len > mtu && !skb_is_gso(skb)) {
                 /* Again, force OUTPUT device used as source address */
                 skb->dev = dst->dev;
                 icmpv6_send(skb, ICMPV6_PKT_TOOBIG, 0, mtu);
diff --git a/net/ipv6/ip6mr.c b/net/ipv6/ip6mr.c
index bd9e7d3e9c8e..073071f2b75b 100644
--- a/net/ipv6/ip6mr.c
+++ b/net/ipv6/ip6mr.c
@@ -2017,7 +2017,7 @@ static int __ip6mr_fill_mroute(struct mr6_table *mrt, struct sk_buff *skb,
         struct rtattr *mp_head;
 
         /* If cache is unresolved, don't try to parse IIF and OIF */
-        if (c->mf6c_parent > MAXMIFS)
+        if (c->mf6c_parent >= MAXMIFS)
                 return -ENOENT;
 
         if (MIF_EXISTS(mrt, c->mf6c_parent))
diff --git a/net/ipv6/netfilter/ip6_tables.c b/net/ipv6/netfilter/ip6_tables.c
index 6f517bd83692..9d2d68f0e605 100644
--- a/net/ipv6/netfilter/ip6_tables.c
+++ b/net/ipv6/netfilter/ip6_tables.c
@@ -363,7 +363,7 @@ ip6t_do_table(struct sk_buff *skb,
         cpu        = smp_processor_id();
         table_base = private->entries[cpu];
         jumpstack  = (struct ip6t_entry **)private->jumpstack[cpu];
-        stackptr   = &private->stackptr[cpu];
+        stackptr   = per_cpu_ptr(private->stackptr, cpu);
         origptr    = *stackptr;
 
         e = get_entry(table_base, private->hook_entry[hook]);
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 294cbe8b0725..252d76199c41 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -814,7 +814,7 @@ struct dst_entry * ip6_route_output(struct net *net, struct sock *sk,
 {
         int flags = 0;
 
-        if (fl->oif || rt6_need_strict(&fl->fl6_dst))
+        if ((sk && sk->sk_bound_dev_if) || rt6_need_strict(&fl->fl6_dst))
                 flags |= RT6_LOOKUP_F_IFACE;
 
         if (!ipv6_addr_any(&fl->fl6_src))
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index 3d7a2c0b836a..87be58673b55 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -328,6 +328,7 @@ int udpv6_recvmsg(struct kiocb *iocb, struct sock *sk,
         int err;
         int is_udplite = IS_UDPLITE(sk);
         int is_udp4;
+        bool slow;
 
         if (addr_len)
                 *addr_len=sizeof(struct sockaddr_in6);
@@ -424,7 +425,7 @@ out:
         return err;
 
 csum_copy_err:
-        lock_sock_bh(sk);
+        slow = lock_sock_fast(sk);
         if (!skb_kill_datagram(sk, skb, flags)) {
                 if (is_udp4)
                         UDP_INC_STATS_USER(sock_net(sk),
@@ -433,7 +434,7 @@ csum_copy_err:
                         UDP6_INC_STATS_USER(sock_net(sk),
                                         UDP_MIB_INERRORS, is_udplite);
         }
-        unlock_sock_bh(sk);
+        unlock_sock_fast(sk, slow);
 
         if (flags & MSG_DONTWAIT)
                 return -EAGAIN;
diff --git a/net/iucv/af_iucv.c b/net/iucv/af_iucv.c
index c8b4599a752e..9637e45744fa 100644
--- a/net/iucv/af_iucv.c
+++ b/net/iucv/af_iucv.c
@@ -1619,7 +1619,7 @@ static void iucv_callback_rx(struct iucv_path *path, struct iucv_message *msg)
 save_message:
         save_msg = kzalloc(sizeof(struct sock_msg_q), GFP_ATOMIC | GFP_DMA);
         if (!save_msg)
-                return;
+                goto out_unlock;
         save_msg->path = path;
         save_msg->msg = *msg;
 
diff --git a/net/iucv/iucv.c b/net/iucv/iucv.c
index fd8b28361a64..f28ad2cc8428 100644
--- a/net/iucv/iucv.c
+++ b/net/iucv/iucv.c
@@ -632,13 +632,14 @@ static int __cpuinit iucv_cpu_notify(struct notifier_block *self,
                 iucv_irq_data[cpu] = kmalloc_node(sizeof(struct iucv_irq_data),
                                         GFP_KERNEL|GFP_DMA, cpu_to_node(cpu));
                 if (!iucv_irq_data[cpu])
-                        return NOTIFY_BAD;
+                        return notifier_from_errno(-ENOMEM);
+
                 iucv_param[cpu] = kmalloc_node(sizeof(union iucv_param),
                                      GFP_KERNEL|GFP_DMA, cpu_to_node(cpu));
                 if (!iucv_param[cpu]) {
                         kfree(iucv_irq_data[cpu]);
                         iucv_irq_data[cpu] = NULL;
-                        return NOTIFY_BAD;
+                        return notifier_from_errno(-ENOMEM);
                 }
                 iucv_param_irq[cpu] = kmalloc_node(sizeof(union iucv_param),
                                         GFP_KERNEL|GFP_DMA, cpu_to_node(cpu));
@@ -647,7 +648,7 @@ static int __cpuinit iucv_cpu_notify(struct notifier_block *self,
                         iucv_param[cpu] = NULL;
                         kfree(iucv_irq_data[cpu]);
                         iucv_irq_data[cpu] = NULL;
-                        return NOTIFY_BAD;
+                        return notifier_from_errno(-ENOMEM);
                 }
                 break;
         case CPU_UP_CANCELED:
@@ -677,7 +678,7 @@ static int __cpuinit iucv_cpu_notify(struct notifier_block *self,
                 cpu_clear(cpu, cpumask);
                 if (cpus_empty(cpumask))
                         /* Can't offline last IUCV enabled cpu. */
-                        return NOTIFY_BAD;
+                        return notifier_from_errno(-EINVAL);
                 smp_call_function_single(cpu, iucv_retrieve_cpu, NULL, 1);
                 if (cpus_empty(iucv_irq_cpumask))
                         smp_call_function_single(first_cpu(iucv_buffer_cpumask),
diff --git a/net/mac80211/chan.c b/net/mac80211/chan.c
index 5d218c530a4e..32be11e4c4d9 100644
--- a/net/mac80211/chan.c
+++ b/net/mac80211/chan.c
@@ -5,7 +5,7 @@
 #include <linux/nl80211.h>
 #include "ieee80211_i.h"
 
-enum ieee80211_chan_mode
+static enum ieee80211_chan_mode
 __ieee80211_get_channel_mode(struct ieee80211_local *local,
                              struct ieee80211_sub_if_data *ignore)
 {
diff --git a/net/netfilter/x_tables.c b/net/netfilter/x_tables.c
index 445de702b8b7..e34622fa0003 100644
--- a/net/netfilter/x_tables.c
+++ b/net/netfilter/x_tables.c
@@ -699,10 +699,8 @@ void xt_free_table_info(struct xt_table_info *info)
                 vfree(info->jumpstack);
         else
                 kfree(info->jumpstack);
-        if (sizeof(unsigned int) * nr_cpu_ids > PAGE_SIZE)
-                vfree(info->stackptr);
-        else
-                kfree(info->stackptr);
+
+        free_percpu(info->stackptr);
 
         kfree(info);
 }
@@ -753,14 +751,9 @@ static int xt_jumpstack_alloc(struct xt_table_info *i)
         unsigned int size;
         int cpu;
 
-        size = sizeof(unsigned int) * nr_cpu_ids;
-        if (size > PAGE_SIZE)
-                i->stackptr = vmalloc(size);
-        else
-                i->stackptr = kmalloc(size, GFP_KERNEL);
+        i->stackptr = alloc_percpu(unsigned int);
         if (i->stackptr == NULL)
                 return -ENOMEM;
-        memset(i->stackptr, 0, size);
 
         size = sizeof(void **) * nr_cpu_ids;
         if (size > PAGE_SIZE)
@@ -844,10 +837,6 @@ struct xt_table *xt_register_table(struct net *net,
         struct xt_table_info *private;
         struct xt_table *t, *table;
 
-        ret = xt_jumpstack_alloc(newinfo);
-        if (ret < 0)
-                return ERR_PTR(ret);
-
         /* Don't add one object to multiple lists. */
         table = kmemdup(input_table, sizeof(struct xt_table), GFP_KERNEL);
         if (!table) {
diff --git a/net/netfilter/xt_TEE.c b/net/netfilter/xt_TEE.c
index d7920d9f49e9..859d9fd429c8 100644
--- a/net/netfilter/xt_TEE.c
+++ b/net/netfilter/xt_TEE.c
@@ -76,7 +76,7 @@ tee_tg_route4(struct sk_buff *skb, const struct xt_tee_tginfo *info)
         if (ip_route_output_key(net, &rt, &fl) != 0)
                 return false;
 
-        dst_release(skb_dst(skb));
+        skb_dst_drop(skb);
         skb_dst_set(skb, &rt->u.dst);
         skb->dev      = rt->u.dst.dev;
         skb->protocol = htons(ETH_P_IP);
@@ -157,7 +157,7 @@ tee_tg_route6(struct sk_buff *skb, const struct xt_tee_tginfo *info)
         if (dst == NULL)
                 return false;
 
-        dst_release(skb_dst(skb));
+        skb_dst_drop(skb);
         skb_dst_set(skb, dst);
         skb->dev      = dst->dev;
         skb->protocol = htons(ETH_P_IPV6);
diff --git a/net/phonet/pep.c b/net/phonet/pep.c
index 7b048a35ca58..94d72e85a475 100644
--- a/net/phonet/pep.c
+++ b/net/phonet/pep.c
@@ -1045,12 +1045,12 @@ static void pep_sock_unhash(struct sock *sk)
         lock_sock(sk);
         if ((1 << sk->sk_state) & ~(TCPF_CLOSE|TCPF_LISTEN)) {
                 skparent = pn->listener;
-                sk_del_node_init(sk);
                 release_sock(sk);
 
-                sk = skparent;
                 pn = pep_sk(skparent);
-                lock_sock(sk);
+                lock_sock(skparent);
+                sk_del_node_init(sk);
+                sk = skparent;
         }
         /* Unhash a listening sock only when it is closed
          * and all of its active connected pipes are closed. */
diff --git a/net/rds/ib_cm.c b/net/rds/ib_cm.c
index 10ed0d55f759..f68832798db2 100644
--- a/net/rds/ib_cm.c
+++ b/net/rds/ib_cm.c
@@ -475,6 +475,7 @@ int rds_ib_cm_handle_connect(struct rdma_cm_id *cm_id,
         err = rds_ib_setup_qp(conn);
         if (err) {
                 rds_ib_conn_error(conn, "rds_ib_setup_qp failed (%d)\n", err);
+                mutex_unlock(&conn->c_cm_lock);
                 goto out;
         }
 
diff --git a/net/rds/iw_cm.c b/net/rds/iw_cm.c
index a9d951b4fbae..b5dd6ac39be8 100644
--- a/net/rds/iw_cm.c
+++ b/net/rds/iw_cm.c
@@ -452,6 +452,7 @@ int rds_iw_cm_handle_connect(struct rdma_cm_id *cm_id,
         err = rds_iw_setup_qp(conn);
         if (err) {
                 rds_iw_conn_error(conn, "rds_iw_setup_qp failed (%d)\n", err);
+                mutex_unlock(&conn->c_cm_lock);
                 goto out;
         }
 
diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c
index b7cd8cccbe72..2a9675136c68 100644
--- a/net/sunrpc/xprtsock.c
+++ b/net/sunrpc/xprtsock.c
@@ -2293,6 +2293,7 @@ static struct rpc_xprt *xs_setup_udp(struct xprt_create *args)
         struct sockaddr *addr = args->dstaddr;
         struct rpc_xprt *xprt;
         struct sock_xprt *transport;
+        struct rpc_xprt *ret;
 
         xprt = xs_setup_xprt(args, xprt_udp_slot_table_entries);
         if (IS_ERR(xprt))
@@ -2330,8 +2331,8 @@ static struct rpc_xprt *xs_setup_udp(struct xprt_create *args)
                 xs_format_peer_addresses(xprt, "udp", RPCBIND_NETID_UDP6);
                 break;
         default:
-                kfree(xprt);
-                return ERR_PTR(-EAFNOSUPPORT);
+                ret = ERR_PTR(-EAFNOSUPPORT);
+                goto out_err;
         }
 
         if (xprt_bound(xprt))
@@ -2346,10 +2347,11 @@ static struct rpc_xprt *xs_setup_udp(struct xprt_create *args)
 
         if (try_module_get(THIS_MODULE))
                 return xprt;
-
+        ret = ERR_PTR(-EINVAL);
+out_err:
         kfree(xprt->slot);
         kfree(xprt);
-        return ERR_PTR(-EINVAL);
+        return ret;
 }
 
 static const struct rpc_timeout xs_tcp_default_timeout = {
@@ -2368,6 +2370,7 @@ static struct rpc_xprt *xs_setup_tcp(struct xprt_create *args)
         struct sockaddr *addr = args->dstaddr;
         struct rpc_xprt *xprt;
         struct sock_xprt *transport;
+        struct rpc_xprt *ret;
 
         xprt = xs_setup_xprt(args, xprt_tcp_slot_table_entries);
         if (IS_ERR(xprt))
@@ -2403,8 +2406,8 @@ static struct rpc_xprt *xs_setup_tcp(struct xprt_create *args)
                 xs_format_peer_addresses(xprt, "tcp", RPCBIND_NETID_TCP6);
                 break;
         default:
-                kfree(xprt);
-                return ERR_PTR(-EAFNOSUPPORT);
+                ret = ERR_PTR(-EAFNOSUPPORT);
+                goto out_err;
         }
 
         if (xprt_bound(xprt))
@@ -2420,10 +2423,11 @@ static struct rpc_xprt *xs_setup_tcp(struct xprt_create *args)
 
         if (try_module_get(THIS_MODULE))
                 return xprt;
-
+        ret = ERR_PTR(-EINVAL);
+out_err:
         kfree(xprt->slot);
         kfree(xprt);
-        return ERR_PTR(-EINVAL);
+        return ret;
 }
 
 /**
@@ -2437,6 +2441,7 @@ static struct rpc_xprt *xs_setup_bc_tcp(struct xprt_create *args)
         struct rpc_xprt *xprt;
         struct sock_xprt *transport;
         struct svc_sock *bc_sock;
+        struct rpc_xprt *ret;
 
         xprt = xs_setup_xprt(args, xprt_tcp_slot_table_entries);
         if (IS_ERR(xprt))
@@ -2476,8 +2481,8 @@ static struct rpc_xprt *xs_setup_bc_tcp(struct xprt_create *args)
                                    RPCBIND_NETID_TCP6);
                 break;
         default:
-                kfree(xprt);
-                return ERR_PTR(-EAFNOSUPPORT);
+                ret = ERR_PTR(-EAFNOSUPPORT);
+                goto out_err;
         }
 
         if (xprt_bound(xprt))
@@ -2499,9 +2504,11 @@ static struct rpc_xprt *xs_setup_bc_tcp(struct xprt_create *args)
 
         if (try_module_get(THIS_MODULE))
                 return xprt;
+        ret = ERR_PTR(-EINVAL);
+out_err:
         kfree(xprt->slot);
         kfree(xprt);
-        return ERR_PTR(-EINVAL);
+        return ret;
 }
 
 static struct xprt_class        xs_udp_transport = {