diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index 1ed034a47bd0..9f630310b271 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -351,6 +351,7 @@ static void nft_netdev_hook_free_ops(struct nft_hook *hook)
 	struct nf_hook_ops *ops, *next;
 
 	list_for_each_entry_safe(ops, next, &hook->ops_list, list) {
+		printk(KERN_INFO "%s: freeing ops @%p from hook @%p\n", __func__, ops, hook);
 		list_del(&ops->list);
 		kfree(ops);
 	}
@@ -2374,6 +2375,7 @@ static struct nft_hook *nft_netdev_hook_alloc(struct net *net,
 			err = -ENOMEM;
 			goto err_hook_free;
 		}
+		printk(KERN_INFO "%s: Adding device %s@%p to new ops @%p of new hook @%p\n", __func__, dev->name, dev, ops, hook);
 		ops->dev = dev;
 		list_add_tail(&ops->list, &hook->ops_list);
 	}
@@ -9834,6 +9836,7 @@ static int nft_flowtable_event(unsigned long event, struct net_device *dev,
 			if (!ops || (changename && match))
 				continue;
 
+			printk(KERN_INFO "%s: unregistering device %s@%p in ops @%p of hook @%p with flowtable @%p\n", __func__, dev->name, dev, ops, hook, flowtable);
 			/* flow_offload_netdev_event() cleans up entries for us. */
 			nft_unregister_flowtable_ops(dev_net(dev),
 						     flowtable, ops);
@@ -9841,6 +9844,9 @@ static int nft_flowtable_event(unsigned long event, struct net_device *dev,
 			kfree_rcu(ops, rcu);
 			break;
 		case NETDEV_REGISTER:
+			if (match && !changename && ops)
+				printk(KERN_ERR "%s: found already registered device %s@%p in ops @%p of hook @%p with flowtable @%p\n", __func__, dev->name, dev, ops, hook, flowtable);
+
 			/* NOP if not matching or already registered */
 			if (!match || (changename && ops))
 				continue;
@@ -9850,6 +9856,8 @@ static int nft_flowtable_event(unsigned long event, struct net_device *dev,
 			if (!ops)
 				return 1;
 
+			printk(KERN_INFO "%s: registering device %s@%p in ops @%p of hook @%p with flowtable @%p\n", __func__, dev->name, dev, ops, hook, flowtable);
+
 			ops->pf			= NFPROTO_NETDEV;
 			ops->hooknum		= flowtable->hooknum;
 			ops->priority		= flowtable->data.priority;