4 files changed, 26 insertions, 18 deletions

diff --git a/drivers/infiniband/core/addr.c b/drivers/infiniband/core/addr.c
index d294bbc42f09..1205e8027829 100644
--- a/drivers/infiniband/core/addr.c
+++ b/drivers/infiniband/core/addr.c
@@ -35,6 +35,7 @@
 #include <net/arp.h>
 #include <net/neighbour.h>
 #include <net/route.h>
+#include <net/netevent.h>
 #include <rdma/ib_addr.h>
 
 MODULE_AUTHOR("Sean Hefty");
@@ -326,25 +327,22 @@ void rdma_addr_cancel(struct rdma_dev_addr *addr)
 }
 EXPORT_SYMBOL(rdma_addr_cancel);
 
-static int addr_arp_recv(struct sk_buff *skb, struct net_device *dev,
-			 struct packet_type *pkt, struct net_device *orig_dev)
+static int netevent_callback(struct notifier_block *self, unsigned long event, 
+	void *ctx)
 {
-	struct arphdr *arp_hdr;
+	if (event == NETEVENT_NEIGH_UPDATE) {  
+		struct neighbour *neigh = ctx;
 
-	arp_hdr = (struct arphdr *) skb->nh.raw;
-
-	if (arp_hdr->ar_op == htons(ARPOP_REQUEST) ||
-	    arp_hdr->ar_op == htons(ARPOP_REPLY))
-		set_timeout(jiffies);
-
-	kfree_skb(skb);
+		if (neigh->dev->type == ARPHRD_INFINIBAND &&
+		    (neigh->nud_state & NUD_VALID)) {
+			set_timeout(jiffies);
+		}
+	}
 	return 0;
 }
 
-static struct packet_type addr_arp = {
-	.type           = __constant_htons(ETH_P_ARP),
-	.func           = addr_arp_recv,
-	.af_packet_priv = (void*) 1,
+static struct notifier_block nb = {
+	.notifier_call = netevent_callback
 };
 
 static int addr_init(void)
@@ -353,13 +351,13 @@ static int addr_init(void)
 	if (!addr_wq)
 		return -ENOMEM;
 
-	dev_add_pack(&addr_arp);
+	register_netevent_notifier(&nb);
 	return 0;
 }
 
 static void addr_cleanup(void)
 {
-	dev_remove_pack(&addr_arp);
+	unregister_netevent_notifier(&nb);
 	destroy_workqueue(addr_wq);
 }
 
diff --git a/drivers/infiniband/core/cm.c b/drivers/infiniband/core/cm.c
index f85c97f7500a..0de335b7bfc2 100644
--- a/drivers/infiniband/core/cm.c
+++ b/drivers/infiniband/core/cm.c
@@ -975,8 +975,10 @@ int ib_send_cm_req(struct ib_cm_id *cm_id,
 
 	cm_id_priv->timewait_info = cm_create_timewait_info(cm_id_priv->
 							    id.local_id);
-	if (IS_ERR(cm_id_priv->timewait_info))
+	if (IS_ERR(cm_id_priv->timewait_info)) {
+		ret = PTR_ERR(cm_id_priv->timewait_info);
 		goto out;
+	}
 
 	ret = cm_init_av_by_path(param->primary_path, &cm_id_priv->av);
 	if (ret)
diff --git a/drivers/infiniband/core/uverbs.h b/drivers/infiniband/core/uverbs.h
index bb9bee56a824..102a59c033ff 100644
--- a/drivers/infiniband/core/uverbs.h
+++ b/drivers/infiniband/core/uverbs.h
@@ -42,6 +42,7 @@
 #include <linux/kref.h>
 #include <linux/idr.h>
 #include <linux/mutex.h>
+#include <linux/completion.h>
 
 #include <rdma/ib_verbs.h>
 #include <rdma/ib_user_verbs.h>
@@ -69,6 +70,7 @@
 
 struct ib_uverbs_device {
 	struct kref				ref;
+	struct completion			comp;
 	int					devnum;
 	struct cdev			       *dev;
 	struct class_device		       *class_dev;
diff --git a/drivers/infiniband/core/uverbs_main.c b/drivers/infiniband/core/uverbs_main.c
index e725cccc7cde..4e16314e8e6d 100644
--- a/drivers/infiniband/core/uverbs_main.c
+++ b/drivers/infiniband/core/uverbs_main.c
@@ -122,7 +122,7 @@ static void ib_uverbs_release_dev(struct kref *ref)
 	struct ib_uverbs_device *dev =
 		container_of(ref, struct ib_uverbs_device, ref);
 
-	kfree(dev);
+	complete(&dev->comp);
 }
 
 void ib_uverbs_release_ucq(struct ib_uverbs_file *file,
@@ -740,6 +740,7 @@ static void ib_uverbs_add_one(struct ib_device *device)
 		return;
 
 	kref_init(&uverbs_dev->ref);
+	init_completion(&uverbs_dev->comp);
 
 	spin_lock(&map_lock);
 	uverbs_dev->devnum = find_first_zero_bit(dev_map, IB_UVERBS_MAX_DEVICES);
@@ -793,6 +794,8 @@ err_cdev:
 
 err:
 	kref_put(&uverbs_dev->ref, ib_uverbs_release_dev);
+	wait_for_completion(&uverbs_dev->comp);
+	kfree(uverbs_dev);
 	return;
 }
 
@@ -812,7 +815,10 @@ static void ib_uverbs_remove_one(struct ib_device *device)
 	spin_unlock(&map_lock);
 
 	clear_bit(uverbs_dev->devnum, dev_map);
+
 	kref_put(&uverbs_dev->ref, ib_uverbs_release_dev);
+	wait_for_completion(&uverbs_dev->comp);
+	kfree(uverbs_dev);
 }
 
 static int uverbs_event_get_sb(struct file_system_type *fs_type, int flags,