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

Three cases of simple overlapping changes.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 11 insertions, 15 deletions

diff --git a/net/tipc/bearer.c b/net/tipc/bearer.c
index d49598f6002b..ac1d66d7e1fd 100644
--- a/net/tipc/bearer.c
+++ b/net/tipc/bearer.c
@@ -65,6 +65,8 @@ static struct tipc_bearer *bearer_get(struct net *net, int bearer_id)
 }
 
 static void bearer_disable(struct net *net, struct tipc_bearer *b);
+static int tipc_l2_rcv_msg(struct sk_buff *skb, struct net_device *dev,
+			   struct packet_type *pt, struct net_device *orig_dev);
 
 /**
  * tipc_media_find - locates specified media object by name
@@ -404,6 +406,10 @@ int tipc_enable_l2_media(struct net *net, struct tipc_bearer *b,
 
 	/* Associate TIPC bearer with L2 bearer */
 	rcu_assign_pointer(b->media_ptr, dev);
+	b->pt.dev = dev;
+	b->pt.type = htons(ETH_P_TIPC);
+	b->pt.func = tipc_l2_rcv_msg;
+	dev_add_pack(&b->pt);
 	memset(&b->bcast_addr, 0, sizeof(b->bcast_addr));
 	memcpy(b->bcast_addr.value, dev->broadcast, b->media->hwaddr_len);
 	b->bcast_addr.media_id = b->media->type_id;
@@ -423,6 +429,7 @@ void tipc_disable_l2_media(struct tipc_bearer *b)
 	struct net_device *dev;
 
 	dev = (struct net_device *)rtnl_dereference(b->media_ptr);
+	dev_remove_pack(&b->pt);
 	RCU_INIT_POINTER(dev->tipc_ptr, NULL);
 	synchronize_net();
 	dev_put(dev);
@@ -570,11 +577,12 @@ static int tipc_l2_rcv_msg(struct sk_buff *skb, struct net_device *dev,
 	struct tipc_bearer *b;
 
 	rcu_read_lock();
-	b = rcu_dereference_rtnl(dev->tipc_ptr);
+	b = rcu_dereference_rtnl(dev->tipc_ptr) ?:
+		rcu_dereference_rtnl(orig_dev->tipc_ptr);
 	if (likely(b && test_bit(0, &b->up) &&
 		   (skb->pkt_type <= PACKET_MULTICAST))) {
 		skb->next = NULL;
-		tipc_rcv(dev_net(dev), skb, b);
+		tipc_rcv(dev_net(b->pt.dev), skb, b);
 		rcu_read_unlock();
 		return NET_RX_SUCCESS;
 	}
@@ -635,11 +643,6 @@ static int tipc_l2_device_event(struct notifier_block *nb, unsigned long evt,
 	return NOTIFY_OK;
 }
 
-static struct packet_type tipc_packet_type __read_mostly = {
-	.type = htons(ETH_P_TIPC),
-	.func = tipc_l2_rcv_msg,
-};
-
 static struct notifier_block notifier = {
 	.notifier_call  = tipc_l2_device_event,
 	.priority	= 0,
@@ -647,19 +650,12 @@ static struct notifier_block notifier = {
 
 int tipc_bearer_setup(void)
 {
-	int err;
-
-	err = register_netdevice_notifier(&notifier);
-	if (err)
-		return err;
-	dev_add_pack(&tipc_packet_type);
-	return 0;
+	return register_netdevice_notifier(&notifier);
 }
 
 void tipc_bearer_cleanup(void)
 {
 	unregister_netdevice_notifier(&notifier);
-	dev_remove_pack(&tipc_packet_type);
 }
 
 void tipc_bearer_stop(struct net *net)