diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index 1ed034a47bd0..c626183e658a 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -9834,6 +9834,7 @@ 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 with flowtable @%p\n", __func__, dev->name, dev, flowtable);
 			/* flow_offload_netdev_event() cleans up entries for us. */
 			nft_unregister_flowtable_ops(dev_net(dev),
 						     flowtable, ops);
@@ -9841,10 +9842,14 @@ 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 with flowtable @%p\n", __func__, dev->name, dev, flowtable);
+
 			/* NOP if not matching or already registered */
 			if (!match || (changename && ops))
 				continue;
 
+			printk(KERN_INFO "%s: registering device %s@%p with flowtable @%p\n", __func__, dev->name, dev, flowtable);
 			ops = kzalloc(sizeof(struct nf_hook_ops),
 				      GFP_KERNEL_ACCOUNT);
 			if (!ops)