16 files changed, 98 insertions, 149 deletions

diff --git a/net/6lowpan/Kconfig b/net/6lowpan/Kconfig
index 028a5c6d1f61..e4a02ef55102 100644
--- a/net/6lowpan/Kconfig
+++ b/net/6lowpan/Kconfig
@@ -1,5 +1,5 @@
 config 6LOWPAN
-        bool "6LoWPAN Support"
+        tristate "6LoWPAN Support"
         depends on IPV6
         ---help---
           This enables IPv6 over Low power Wireless Personal Area Network -
diff --git a/net/8021q/vlan_core.c b/net/8021q/vlan_core.c
index 75d427763992..90cc2bdd4064 100644
--- a/net/8021q/vlan_core.c
+++ b/net/8021q/vlan_core.c
@@ -112,59 +112,6 @@ __be16 vlan_dev_vlan_proto(const struct net_device *dev)
 }
 EXPORT_SYMBOL(vlan_dev_vlan_proto);
 
-static struct sk_buff *vlan_reorder_header(struct sk_buff *skb)
-{
-        if (skb_cow(skb, skb_headroom(skb)) < 0) {
-                kfree_skb(skb);
-                return NULL;
-        }
-
-        memmove(skb->data - ETH_HLEN, skb->data - VLAN_ETH_HLEN, 2 * ETH_ALEN);
-        skb->mac_header += VLAN_HLEN;
-        return skb;
-}
-
-struct sk_buff *vlan_untag(struct sk_buff *skb)
-{
-        struct vlan_hdr *vhdr;
-        u16 vlan_tci;
-
-        if (unlikely(vlan_tx_tag_present(skb))) {
-                /* vlan_tci is already set-up so leave this for another time */
-                return skb;
-        }
-
-        skb = skb_share_check(skb, GFP_ATOMIC);
-        if (unlikely(!skb))
-                goto err_free;
-
-        if (unlikely(!pskb_may_pull(skb, VLAN_HLEN)))
-                goto err_free;
-
-        vhdr = (struct vlan_hdr *) skb->data;
-        vlan_tci = ntohs(vhdr->h_vlan_TCI);
-        __vlan_hwaccel_put_tag(skb, skb->protocol, vlan_tci);
-
-        skb_pull_rcsum(skb, VLAN_HLEN);
-        vlan_set_encap_proto(skb, vhdr);
-
-        skb = vlan_reorder_header(skb);
-        if (unlikely(!skb))
-                goto err_free;
-
-        skb_reset_network_header(skb);
-        skb_reset_transport_header(skb);
-        skb_reset_mac_len(skb);
-
-        return skb;
-
-err_free:
-        kfree_skb(skb);
-        return NULL;
-}
-EXPORT_SYMBOL(vlan_untag);
-
-
 /*
  * vlan info and vid list
  */
diff --git a/net/batman-adv/multicast.c b/net/batman-adv/multicast.c
index 96b66fd30f96..ab6bb2af1d45 100644
--- a/net/batman-adv/multicast.c
+++ b/net/batman-adv/multicast.c
@@ -20,7 +20,6 @@
 #include "originator.h"
 #include "hard-interface.h"
 #include "translation-table.h"
-#include "multicast.h"
 
 /**
  * batadv_mcast_mla_softif_get - get softif multicast listeners
diff --git a/net/bridge/br_vlan.c b/net/bridge/br_vlan.c
index febb0f87fa37..e1bcd653899b 100644
--- a/net/bridge/br_vlan.c
+++ b/net/bridge/br_vlan.c
@@ -181,7 +181,7 @@ bool br_allowed_ingress(struct net_bridge *br, struct net_port_vlans *v,
          */
         if (unlikely(!vlan_tx_tag_present(skb) &&
                      skb->protocol == proto)) {
-                skb = vlan_untag(skb);
+                skb = skb_vlan_untag(skb);
                 if (unlikely(!skb))
                         return false;
         }
diff --git a/net/bridge/netfilter/ebtables.c b/net/bridge/netfilter/ebtables.c
index 1059ed3bc255..6d69631b9f4d 100644
--- a/net/bridge/netfilter/ebtables.c
+++ b/net/bridge/netfilter/ebtables.c
@@ -327,10 +327,7 @@ find_inlist_lock_noload(struct list_head *head, const char *name, int *error,
                 char name[EBT_FUNCTION_MAXNAMELEN];
         } *e;
 
-        *error = mutex_lock_interruptible(mutex);
-        if (*error != 0)
-                return NULL;
-
+        mutex_lock(mutex);
         list_for_each_entry(e, head, list) {
                 if (strcmp(e->name, name) == 0)
                         return e;
@@ -1203,10 +1200,7 @@ ebt_register_table(struct net *net, const struct ebt_table *input_table)
 
         table->private = newinfo;
         rwlock_init(&table->lock);
-        ret = mutex_lock_interruptible(&ebt_mutex);
-        if (ret != 0)
-                goto free_chainstack;
-
+        mutex_lock(&ebt_mutex);
         list_for_each_entry(t, &net->xt.tables[NFPROTO_BRIDGE], list) {
                 if (strcmp(t->name, table->name) == 0) {
                         ret = -EEXIST;
diff --git a/net/core/dev.c b/net/core/dev.c
index 1c15b189c52b..b65a5051361f 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -3602,7 +3602,7 @@ another_round:
 
         if (skb->protocol == cpu_to_be16(ETH_P_8021Q) ||
             skb->protocol == cpu_to_be16(ETH_P_8021AD)) {
-                skb = vlan_untag(skb);
+                skb = skb_vlan_untag(skb);
                 if (unlikely(!skb))
                         goto unlock;
         }
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 8d39071f32d7..f0493e3b7471 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -804,7 +804,8 @@ static inline int rtnl_vfinfo_size(const struct net_device *dev,
                         (nla_total_size(sizeof(struct ifla_vf_mac)) +
                          nla_total_size(sizeof(struct ifla_vf_vlan)) +
                          nla_total_size(sizeof(struct ifla_vf_spoofchk)) +
-                         nla_total_size(sizeof(struct ifla_vf_rate)));
+                         nla_total_size(sizeof(struct ifla_vf_rate)) +
+                         nla_total_size(sizeof(struct ifla_vf_link_state)));
                 return size;
         } else
                 return 0;
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 224506a6fa80..163b673f9e62 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -62,6 +62,7 @@
 #include <linux/scatterlist.h>
 #include <linux/errqueue.h>
 #include <linux/prefetch.h>
+#include <linux/if_vlan.h>
 
 #include <net/protocol.h>
 #include <net/dst.h>
@@ -3973,3 +3974,55 @@ unsigned int skb_gso_transport_seglen(const struct sk_buff *skb)
         return shinfo->gso_size;
 }
 EXPORT_SYMBOL_GPL(skb_gso_transport_seglen);
+
+static struct sk_buff *skb_reorder_vlan_header(struct sk_buff *skb)
+{
+        if (skb_cow(skb, skb_headroom(skb)) < 0) {
+                kfree_skb(skb);
+                return NULL;
+        }
+
+        memmove(skb->data - ETH_HLEN, skb->data - VLAN_ETH_HLEN, 2 * ETH_ALEN);
+        skb->mac_header += VLAN_HLEN;
+        return skb;
+}
+
+struct sk_buff *skb_vlan_untag(struct sk_buff *skb)
+{
+        struct vlan_hdr *vhdr;
+        u16 vlan_tci;
+
+        if (unlikely(vlan_tx_tag_present(skb))) {
+                /* vlan_tci is already set-up so leave this for another time */
+                return skb;
+        }
+
+        skb = skb_share_check(skb, GFP_ATOMIC);
+        if (unlikely(!skb))
+                goto err_free;
+
+        if (unlikely(!pskb_may_pull(skb, VLAN_HLEN)))
+                goto err_free;
+
+        vhdr = (struct vlan_hdr *)skb->data;
+        vlan_tci = ntohs(vhdr->h_vlan_TCI);
+        __vlan_hwaccel_put_tag(skb, skb->protocol, vlan_tci);
+
+        skb_pull_rcsum(skb, VLAN_HLEN);
+        vlan_set_encap_proto(skb, vhdr);
+
+        skb = skb_reorder_vlan_header(skb);
+        if (unlikely(!skb))
+                goto err_free;
+
+        skb_reset_network_header(skb);
+        skb_reset_transport_header(skb);
+        skb_reset_mac_len(skb);
+
+        return skb;
+
+err_free:
+        kfree_skb(skb);
+        return NULL;
+}
+EXPORT_SYMBOL(skb_vlan_untag);
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 190199851c9a..eaa4b000c7b4 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -1798,8 +1798,6 @@ local_input:
 no_route:
         RT_CACHE_STAT_INC(in_no_route);
         res.type = RTN_UNREACHABLE;
-        if (err == -ESRCH)
-                err = -ENETUNREACH;
         goto local_input;
 
         /*
diff --git a/net/netfilter/core.c b/net/netfilter/core.c
index 1fbab0cdd302..a93c97f106d4 100644
--- a/net/netfilter/core.c
+++ b/net/netfilter/core.c
@@ -35,11 +35,7 @@ EXPORT_SYMBOL_GPL(nf_ipv6_ops);
 
 int nf_register_afinfo(const struct nf_afinfo *afinfo)
 {
-        int err;
-
-        err = mutex_lock_interruptible(&afinfo_mutex);
-        if (err < 0)
-                return err;
+        mutex_lock(&afinfo_mutex);
         RCU_INIT_POINTER(nf_afinfo[afinfo->family], afinfo);
         mutex_unlock(&afinfo_mutex);
         return 0;
@@ -68,11 +64,8 @@ static DEFINE_MUTEX(nf_hook_mutex);
 int nf_register_hook(struct nf_hook_ops *reg)
 {
         struct nf_hook_ops *elem;
-        int err;
 
-        err = mutex_lock_interruptible(&nf_hook_mutex);
-        if (err < 0)
-                return err;
+        mutex_lock(&nf_hook_mutex);
         list_for_each_entry(elem, &nf_hooks[reg->pf][reg->hooknum], list) {
                 if (reg->priority < elem->priority)
                         break;
diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c
index 8416307fdd1d..fd3f444a4f96 100644
--- a/net/netfilter/ipvs/ip_vs_ctl.c
+++ b/net/netfilter/ipvs/ip_vs_ctl.c
@@ -2271,10 +2271,7 @@ do_ip_vs_set_ctl(struct sock *sk, int cmd, void __user *user, unsigned int len)
             cmd == IP_VS_SO_SET_STOPDAEMON) {
                 struct ip_vs_daemon_user *dm = (struct ip_vs_daemon_user *)arg;
 
-                if (mutex_lock_interruptible(&ipvs->sync_mutex)) {
-                        ret = -ERESTARTSYS;
-                        goto out_dec;
-                }
+                mutex_lock(&ipvs->sync_mutex);
                 if (cmd == IP_VS_SO_SET_STARTDAEMON)
                         ret = start_sync_thread(net, dm->state, dm->mcast_ifn,
                                                 dm->syncid);
@@ -2284,11 +2281,7 @@ do_ip_vs_set_ctl(struct sock *sk, int cmd, void __user *user, unsigned int len)
                 goto out_dec;
         }
 
-        if (mutex_lock_interruptible(&__ip_vs_mutex)) {
-                ret = -ERESTARTSYS;
-                goto out_dec;
-        }
-
+        mutex_lock(&__ip_vs_mutex);
         if (cmd == IP_VS_SO_SET_FLUSH) {
                 /* Flush the virtual service */
                 ret = ip_vs_flush(net, false);
@@ -2573,9 +2566,7 @@ do_ip_vs_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
                 struct ip_vs_daemon_user d[2];
 
                 memset(&d, 0, sizeof(d));
-                if (mutex_lock_interruptible(&ipvs->sync_mutex))
-                        return -ERESTARTSYS;
-
+                mutex_lock(&ipvs->sync_mutex);
                 if (ipvs->sync_state & IP_VS_STATE_MASTER) {
                         d[0].state = IP_VS_STATE_MASTER;
                         strlcpy(d[0].mcast_ifn, ipvs->master_mcast_ifn,
@@ -2594,9 +2585,7 @@ do_ip_vs_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
                 return ret;
         }
 
-        if (mutex_lock_interruptible(&__ip_vs_mutex))
-                return -ERESTARTSYS;
-
+        mutex_lock(&__ip_vs_mutex);
         switch (cmd) {
         case IP_VS_SO_GET_VERSION:
         {
diff --git a/net/netfilter/nf_sockopt.c b/net/netfilter/nf_sockopt.c
index f042ae521557..c68c1e58b362 100644
--- a/net/netfilter/nf_sockopt.c
+++ b/net/netfilter/nf_sockopt.c
@@ -26,9 +26,7 @@ int nf_register_sockopt(struct nf_sockopt_ops *reg)
         struct nf_sockopt_ops *ops;
         int ret = 0;
 
-        if (mutex_lock_interruptible(&nf_sockopt_mutex) != 0)
-                return -EINTR;
-
+        mutex_lock(&nf_sockopt_mutex);
         list_for_each_entry(ops, &nf_sockopts, list) {
                 if (ops->pf == reg->pf
                     && (overlap(ops->set_optmin, ops->set_optmax,
@@ -65,9 +63,7 @@ static struct nf_sockopt_ops *nf_sockopt_find(struct sock *sk, u_int8_t pf,
 {
         struct nf_sockopt_ops *ops;
 
-        if (mutex_lock_interruptible(&nf_sockopt_mutex) != 0)
-                return ERR_PTR(-EINTR);
-
+        mutex_lock(&nf_sockopt_mutex);
         list_for_each_entry(ops, &nf_sockopts, list) {
                 if (ops->pf == pf) {
                         if (!try_module_get(ops->owner))
diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index b8035c2d6667..deeb95fb7028 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -899,6 +899,9 @@ static struct nft_stats __percpu *nft_stats_alloc(const struct nlattr *attr)
 static void nft_chain_stats_replace(struct nft_base_chain *chain,
                                     struct nft_stats __percpu *newstats)
 {
+        if (newstats == NULL)
+                return;
+
         if (chain->stats) {
                 struct nft_stats __percpu *oldstats =
                                 nft_dereference(chain->stats);
@@ -3134,16 +3137,13 @@ static int nft_del_setelem(struct nft_ctx *ctx, struct nft_set *set,
                 goto err2;
 
         trans = nft_trans_elem_alloc(ctx, NFT_MSG_DELSETELEM, set);
-        if (trans == NULL)
+        if (trans == NULL) {
+                err = -ENOMEM;
                 goto err2;
+        }
 
         nft_trans_elem(trans) = elem;
         list_add_tail(&trans->list, &ctx->net->nft.commit_list);
-
-        nft_data_uninit(&elem.key, NFT_DATA_VALUE);
-        if (set->flags & NFT_SET_MAP)
-                nft_data_uninit(&elem.data, set->dtype);
-
         return 0;
 err2:
         nft_data_uninit(&elem.key, desc.type);
@@ -3310,7 +3310,7 @@ static int nf_tables_commit(struct sk_buff *skb)
 {
         struct net *net = sock_net(skb->sk);
         struct nft_trans *trans, *next;
-        struct nft_set *set;
+        struct nft_trans_elem *te;
 
         /* Bump generation counter, invalidate any dump in progress */
         while (++net->nft.base_seq == 0);
@@ -3396,13 +3396,17 @@ static int nf_tables_commit(struct sk_buff *skb)
                         nft_trans_destroy(trans);
                         break;
                 case NFT_MSG_DELSETELEM:
-                        nf_tables_setelem_notify(&trans->ctx,
-                                                 nft_trans_elem_set(trans),
-                                                 &nft_trans_elem(trans),
+                        te = (struct nft_trans_elem *)trans->data;
+                        nf_tables_setelem_notify(&trans->ctx, te->set,
+                                                 &te->elem,
                                                  NFT_MSG_DELSETELEM, 0);
-                        set = nft_trans_elem_set(trans);
-                        set->ops->get(set, &nft_trans_elem(trans));
-                        set->ops->remove(set, &nft_trans_elem(trans));
+                        te->set->ops->get(te->set, &te->elem);
+                        te->set->ops->remove(te->set, &te->elem);
+                        nft_data_uninit(&te->elem.key, NFT_DATA_VALUE);
+                        if (te->elem.flags & NFT_SET_MAP) {
+                                nft_data_uninit(&te->elem.data,
+                                                te->set->dtype);
+                        }
                         nft_trans_destroy(trans);
                         break;
                 }
diff --git a/net/netfilter/x_tables.c b/net/netfilter/x_tables.c
index 47b978bc3100..272ae4d6fdf4 100644
--- a/net/netfilter/x_tables.c
+++ b/net/netfilter/x_tables.c
@@ -71,18 +71,14 @@ static const char *const xt_prefix[NFPROTO_NUMPROTO] = {
 static const unsigned int xt_jumpstack_multiplier = 2;
 
 /* Registration hooks for targets. */
-int
-xt_register_target(struct xt_target *target)
+int xt_register_target(struct xt_target *target)
 {
         u_int8_t af = target->family;
-        int ret;
 
-        ret = mutex_lock_interruptible(&xt[af].mutex);
-        if (ret != 0)
-                return ret;
+        mutex_lock(&xt[af].mutex);
         list_add(&target->list, &xt[af].target);
         mutex_unlock(&xt[af].mutex);
-        return ret;
+        return 0;
 }
 EXPORT_SYMBOL(xt_register_target);
 
@@ -125,20 +121,14 @@ xt_unregister_targets(struct xt_target *target, unsigned int n)
 }
 EXPORT_SYMBOL(xt_unregister_targets);
 
-int
-xt_register_match(struct xt_match *match)
+int xt_register_match(struct xt_match *match)
 {
         u_int8_t af = match->family;
-        int ret;
-
-        ret = mutex_lock_interruptible(&xt[af].mutex);
-        if (ret != 0)
-                return ret;
 
+        mutex_lock(&xt[af].mutex);
         list_add(&match->list, &xt[af].match);
         mutex_unlock(&xt[af].mutex);
-
-        return ret;
+        return 0;
 }
 EXPORT_SYMBOL(xt_register_match);
 
@@ -194,9 +184,7 @@ struct xt_match *xt_find_match(u8 af, const char *name, u8 revision)
         struct xt_match *m;
         int err = -ENOENT;
 
-        if (mutex_lock_interruptible(&xt[af].mutex) != 0)
-                return ERR_PTR(-EINTR);
-
+        mutex_lock(&xt[af].mutex);
         list_for_each_entry(m, &xt[af].match, list) {
                 if (strcmp(m->name, name) == 0) {
                         if (m->revision == revision) {
@@ -239,9 +227,7 @@ struct xt_target *xt_find_target(u8 af, const char *name, u8 revision)
         struct xt_target *t;
         int err = -ENOENT;
 
-        if (mutex_lock_interruptible(&xt[af].mutex) != 0)
-                return ERR_PTR(-EINTR);
-
+        mutex_lock(&xt[af].mutex);
         list_for_each_entry(t, &xt[af].target, list) {
                 if (strcmp(t->name, name) == 0) {
                         if (t->revision == revision) {
@@ -323,10 +309,7 @@ int xt_find_revision(u8 af, const char *name, u8 revision, int target,
 {
         int have_rev, best = -1;
 
-        if (mutex_lock_interruptible(&xt[af].mutex) != 0) {
-                *err = -EINTR;
-                return 1;
-        }
+        mutex_lock(&xt[af].mutex);
         if (target == 1)
                 have_rev = target_revfn(af, name, revision, &best);
         else
@@ -732,9 +715,7 @@ struct xt_table *xt_find_table_lock(struct net *net, u_int8_t af,
 {
         struct xt_table *t;
 
-        if (mutex_lock_interruptible(&xt[af].mutex) != 0)
-                return ERR_PTR(-EINTR);
-
+        mutex_lock(&xt[af].mutex);
         list_for_each_entry(t, &net->xt.tables[af], list)
                 if (strcmp(t->name, name) == 0 && try_module_get(t->me))
                         return t;
@@ -883,10 +864,7 @@ struct xt_table *xt_register_table(struct net *net,
                 goto out;
         }
 
-        ret = mutex_lock_interruptible(&xt[table->af].mutex);
-        if (ret != 0)
-                goto out_free;
-
+        mutex_lock(&xt[table->af].mutex);
         /* Don't autoload: we'd eat our tail... */
         list_for_each_entry(t, &net->xt.tables[table->af], list) {
                 if (strcmp(t->name, table->name) == 0) {
@@ -911,9 +889,8 @@ struct xt_table *xt_register_table(struct net *net,
         mutex_unlock(&xt[table->af].mutex);
         return table;
 
- unlock:
+unlock:
         mutex_unlock(&xt[table->af].mutex);
-out_free:
         kfree(table);
 out:
         return ERR_PTR(ret);
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index a324b4b34c90..2e152e5f2186 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -213,7 +213,7 @@ static int __netlink_deliver_tap_skb(struct sk_buff *skb,
                 nskb->protocol = htons((u16) sk->sk_protocol);
                 nskb->pkt_type = netlink_is_kernel(sk) ?
                                  PACKET_KERNEL : PACKET_USER;
-
+                skb_reset_network_header(nskb);
                 ret = dev_queue_xmit(nskb);
                 if (unlikely(ret > 0))
                         ret = net_xmit_errno(ret);
diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c
index 7ad3f029baae..7228ec3faf19 100644
--- a/net/openvswitch/datapath.c
+++ b/net/openvswitch/datapath.c
@@ -47,8 +47,6 @@
 #include <linux/openvswitch.h>
 #include <linux/rculist.h>
 #include <linux/dmi.h>
-#include <linux/genetlink.h>
-#include <net/genetlink.h>
 #include <net/genetlink.h>
 #include <net/net_namespace.h>
 #include <net/netns/generic.h>