6 files changed, 25 insertions, 28 deletions

diff --git a/net/openvswitch/actions.c b/net/openvswitch/actions.c
index ac2defeeba83..d4d5363c7ba7 100644
--- a/net/openvswitch/actions.c
+++ b/net/openvswitch/actions.c
@@ -58,7 +58,7 @@ static int __pop_vlan_tci(struct sk_buff *skb, __be16 *current_tci)
 
         if (skb->ip_summed == CHECKSUM_COMPLETE)
                 skb->csum = csum_sub(skb->csum, csum_partial(skb->data
-                                        + ETH_HLEN, VLAN_HLEN, 0));
+                                        + (2 * ETH_ALEN), VLAN_HLEN, 0));
 
         vhdr = (struct vlan_hdr *)(skb->data + ETH_HLEN);
         *current_tci = vhdr->h_vlan_TCI;
@@ -115,7 +115,7 @@ static int push_vlan(struct sk_buff *skb, const struct ovs_action_push_vlan *vla
 
                 if (skb->ip_summed == CHECKSUM_COMPLETE)
                         skb->csum = csum_add(skb->csum, csum_partial(skb->data
-                                        + ETH_HLEN, VLAN_HLEN, 0));
+                                        + (2 * ETH_ALEN), VLAN_HLEN, 0));
 
         }
         __vlan_hwaccel_put_tag(skb, ntohs(vlan->vlan_tci) & ~VLAN_TAG_PRESENT);
diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c
index f996db343247..a4b724708a1a 100644
--- a/net/openvswitch/datapath.c
+++ b/net/openvswitch/datapath.c
@@ -158,11 +158,10 @@ static struct hlist_head *vport_hash_bucket(const struct datapath *dp,
 struct vport *ovs_lookup_vport(const struct datapath *dp, u16 port_no)
 {
         struct vport *vport;
-        struct hlist_node *n;
         struct hlist_head *head;
 
         head = vport_hash_bucket(dp, port_no);
-        hlist_for_each_entry_rcu(vport, n, head, dp_hash_node) {
+        hlist_for_each_entry_rcu(vport, head, dp_hash_node) {
                 if (vport->port_no == port_no)
                         return vport;
         }
@@ -301,7 +300,7 @@ static int queue_gso_packets(struct net *net, int dp_ifindex,
         struct sk_buff *segs, *nskb;
         int err;
 
-        segs = skb_gso_segment(skb, NETIF_F_SG | NETIF_F_HW_CSUM);
+        segs = __skb_gso_segment(skb, NETIF_F_SG | NETIF_F_HW_CSUM, false);
         if (IS_ERR(segs))
                 return PTR_ERR(segs);
 
@@ -395,6 +394,7 @@ static int queue_userspace_packet(struct net *net, int dp_ifindex,
 
         skb_copy_and_csum_dev(skb, nla_data(nla));
 
+        genlmsg_end(user_skb, upcall);
         err = genlmsg_unicast(net, user_skb, upcall_info->portid);
 
 out:
@@ -1386,9 +1386,9 @@ static void __dp_destroy(struct datapath *dp)
 
         for (i = 0; i < DP_VPORT_HASH_BUCKETS; i++) {
                 struct vport *vport;
-                struct hlist_node *node, *n;
+                struct hlist_node *n;
 
-                hlist_for_each_entry_safe(vport, node, n, &dp->ports[i], dp_hash_node)
+                hlist_for_each_entry_safe(vport, n, &dp->ports[i], dp_hash_node)
                         if (vport->port_no != OVSP_LOCAL)
                                 ovs_dp_detach_port(vport);
         }
@@ -1691,6 +1691,7 @@ static int ovs_vport_cmd_new(struct sk_buff *skb, struct genl_info *info)
         if (IS_ERR(vport))
                 goto exit_unlock;
 
+        err = 0;
         reply = ovs_vport_cmd_build_info(vport, info->snd_portid, info->snd_seq,
                                          OVS_VPORT_CMD_NEW);
         if (IS_ERR(reply)) {
@@ -1772,6 +1773,7 @@ static int ovs_vport_cmd_del(struct sk_buff *skb, struct genl_info *info)
         if (IS_ERR(reply))
                 goto exit_unlock;
 
+        err = 0;
         ovs_dp_detach_port(vport);
 
         genl_notify(reply, genl_info_net(info), info->snd_portid,
@@ -1825,10 +1827,9 @@ static int ovs_vport_cmd_dump(struct sk_buff *skb, struct netlink_callback *cb)
         rcu_read_lock();
         for (i = bucket; i < DP_VPORT_HASH_BUCKETS; i++) {
                 struct vport *vport;
-                struct hlist_node *n;
 
                 j = 0;
-                hlist_for_each_entry_rcu(vport, n, &dp->ports[i], dp_hash_node) {
+                hlist_for_each_entry_rcu(vport, &dp->ports[i], dp_hash_node) {
                         if (j >= skip &&
                             ovs_vport_cmd_fill_info(vport, skb,
                                                     NETLINK_CB(cb->skb).portid,
@@ -1989,10 +1990,9 @@ static struct pernet_operations ovs_net_ops = {
 
 static int __init dp_init(void)
 {
-        struct sk_buff *dummy_skb;
         int err;
 
-        BUILD_BUG_ON(sizeof(struct ovs_skb_cb) > sizeof(dummy_skb->cb));
+        BUILD_BUG_ON(sizeof(struct ovs_skb_cb) > FIELD_SIZEOF(struct sk_buff, cb));
 
         pr_info("Open vSwitch switching datapath\n");
 
diff --git a/net/openvswitch/flow.c b/net/openvswitch/flow.c
index c3294cebc4f2..fe0e4215c73d 100644
--- a/net/openvswitch/flow.c
+++ b/net/openvswitch/flow.c
@@ -299,10 +299,10 @@ void ovs_flow_tbl_destroy(struct flow_table *table)
         for (i = 0; i < table->n_buckets; i++) {
                 struct sw_flow *flow;
                 struct hlist_head *head = flex_array_get(table->buckets, i);
-                struct hlist_node *node, *n;
+                struct hlist_node *n;
                 int ver = table->node_ver;
 
-                hlist_for_each_entry_safe(flow, node, n, head, hash_node[ver]) {
+                hlist_for_each_entry_safe(flow, n, head, hash_node[ver]) {
                         hlist_del_rcu(&flow->hash_node[ver]);
                         ovs_flow_free(flow);
                 }
@@ -332,7 +332,6 @@ struct sw_flow *ovs_flow_tbl_next(struct flow_table *table, u32 *bucket, u32 *la
 {
         struct sw_flow *flow;
         struct hlist_head *head;
-        struct hlist_node *n;
         int ver;
         int i;
 
@@ -340,7 +339,7 @@ struct sw_flow *ovs_flow_tbl_next(struct flow_table *table, u32 *bucket, u32 *la
         while (*bucket < table->n_buckets) {
                 i = 0;
                 head = flex_array_get(table->buckets, *bucket);
-                hlist_for_each_entry_rcu(flow, n, head, hash_node[ver]) {
+                hlist_for_each_entry_rcu(flow, head, hash_node[ver]) {
                         if (i < *last) {
                                 i++;
                                 continue;
@@ -367,11 +366,10 @@ static void flow_table_copy_flows(struct flow_table *old, struct flow_table *new
         for (i = 0; i < old->n_buckets; i++) {
                 struct sw_flow *flow;
                 struct hlist_head *head;
-                struct hlist_node *n;
 
                 head = flex_array_get(old->buckets, i);
 
-                hlist_for_each_entry(flow, n, head, hash_node[old_ver])
+                hlist_for_each_entry(flow, head, hash_node[old_ver])
                         ovs_flow_tbl_insert(new, flow);
         }
         old->keep_flows = true;
@@ -484,7 +482,11 @@ static __be16 parse_ethertype(struct sk_buff *skb)
                 return htons(ETH_P_802_2);
 
         __skb_pull(skb, sizeof(struct llc_snap_hdr));
-        return llc->ethertype;
+
+        if (ntohs(llc->ethertype) >= 1536)
+                return llc->ethertype;
+
+        return htons(ETH_P_802_2);
 }
 
 static int parse_icmpv6(struct sk_buff *skb, struct sw_flow_key *key,
@@ -766,14 +768,13 @@ struct sw_flow *ovs_flow_tbl_lookup(struct flow_table *table,
                                 struct sw_flow_key *key, int key_len)
 {
         struct sw_flow *flow;
-        struct hlist_node *n;
         struct hlist_head *head;
         u32 hash;
 
         hash = ovs_flow_hash(key, key_len);
 
         head = find_bucket(table, hash);
-        hlist_for_each_entry_rcu(flow, n, head, hash_node[table->node_ver]) {
+        hlist_for_each_entry_rcu(flow, head, hash_node[table->node_ver]) {
 
                 if (flow->hash == hash &&
                     !memcmp(&flow->key, key, key_len)) {
diff --git a/net/openvswitch/vport-internal_dev.c b/net/openvswitch/vport-internal_dev.c
index 5d460c37df07..0531de6c7a4a 100644
--- a/net/openvswitch/vport-internal_dev.c
+++ b/net/openvswitch/vport-internal_dev.c
@@ -69,7 +69,6 @@ static int internal_dev_mac_addr(struct net_device *dev, void *p)
 
         if (!is_valid_ether_addr(addr->sa_data))
                 return -EADDRNOTAVAIL;
-        dev->addr_assign_type &= ~NET_ADDR_RANDOM;
         memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
         return 0;
 }
@@ -98,7 +97,7 @@ static int internal_dev_stop(struct net_device *netdev)
 static void internal_dev_getinfo(struct net_device *netdev,
                                  struct ethtool_drvinfo *info)
 {
-        strcpy(info->driver, "openvswitch");
+        strlcpy(info->driver, "openvswitch", sizeof(info->driver));
 }
 
 static const struct ethtool_ops internal_dev_ethtool_ops = {
diff --git a/net/openvswitch/vport-netdev.c b/net/openvswitch/vport-netdev.c
index 670cbc3518de..2130d61c384a 100644
--- a/net/openvswitch/vport-netdev.c
+++ b/net/openvswitch/vport-netdev.c
@@ -43,8 +43,7 @@ static void netdev_port_receive(struct vport *vport, struct sk_buff *skb)
 
         /* Make our own copy of the packet.  Otherwise we will mangle the
          * packet for anyone who came before us (e.g. tcpdump via AF_PACKET).
-         * (No one comes after us, since we tell handle_bridge() that we took
-         * the packet.) */
+         */
         skb = skb_share_check(skb, GFP_ATOMIC);
         if (unlikely(!skb))
                 return;
diff --git a/net/openvswitch/vport.c b/net/openvswitch/vport.c
index 70af0bedbac4..f6b8132ce4cb 100644
--- a/net/openvswitch/vport.c
+++ b/net/openvswitch/vport.c
@@ -86,9 +86,8 @@ struct vport *ovs_vport_locate(struct net *net, const char *name)
 {
         struct hlist_head *bucket = hash_bucket(net, name);
         struct vport *vport;
-        struct hlist_node *node;
 
-        hlist_for_each_entry_rcu(vport, node, bucket, hash_node)
+        hlist_for_each_entry_rcu(vport, bucket, hash_node)
                 if (!strcmp(name, vport->ops->get_name(vport)) &&
                     net_eq(ovs_dp_get_net(vport->dp), net))
                         return vport;
@@ -326,8 +325,7 @@ int ovs_vport_get_options(const struct vport *vport, struct sk_buff *skb)
  * @skb: skb that was received
  *
  * Must be called with rcu_read_lock.  The packet cannot be shared and
- * skb->data should point to the Ethernet header.  The caller must have already
- * called compute_ip_summed() to initialize the checksumming fields.
+ * skb->data should point to the Ethernet header.
  */
 void ovs_vport_receive(struct vport *vport, struct sk_buff *skb)
 {