diff --git a/target/linux/generic/patches-3.18/644-bridge_optimize_netfilter_hooks.patch b/target/linux/generic/patches-3.18/644-bridge_optimize_netfilter_hooks.patch
deleted file mode 100644
index 4df94ca9d8..0000000000
--- a/target/linux/generic/patches-3.18/644-bridge_optimize_netfilter_hooks.patch
+++ /dev/null
@@ -1,172 +0,0 @@
---- a/net/bridge/br_forward.c
-+++ b/net/bridge/br_forward.c
-@@ -53,7 +53,7 @@ EXPORT_SYMBOL_GPL(br_dev_queue_push_xmit
- 
- int br_forward_finish(struct sk_buff *skb)
- {
--	return NF_HOOK(NFPROTO_BRIDGE, NF_BR_POST_ROUTING, skb, NULL, skb->dev,
-+	return BR_HOOK(NFPROTO_BRIDGE, NF_BR_POST_ROUTING, skb, NULL, skb->dev,
- 		       br_dev_queue_push_xmit);
- 
- }
-@@ -77,7 +77,7 @@ static void __br_deliver(const struct ne
- 		return;
- 	}
- 
--	NF_HOOK(NFPROTO_BRIDGE, NF_BR_LOCAL_OUT, skb, NULL, skb->dev,
-+	BR_HOOK(NFPROTO_BRIDGE, NF_BR_LOCAL_OUT, skb, NULL, skb->dev,
- 		br_forward_finish);
- }
- 
-@@ -98,7 +98,7 @@ static void __br_forward(const struct ne
- 	skb->dev = to->dev;
- 	skb_forward_csum(skb);
- 
--	NF_HOOK(NFPROTO_BRIDGE, NF_BR_FORWARD, skb, indev, skb->dev,
-+	BR_HOOK(NFPROTO_BRIDGE, NF_BR_FORWARD, skb, indev, skb->dev,
- 		br_forward_finish);
- }
- 
---- a/net/bridge/br_input.c
-+++ b/net/bridge/br_input.c
-@@ -53,7 +53,7 @@ static int br_pass_frame_up(struct sk_bu
- 	if (!skb)
- 		return NET_RX_DROP;
- 
--	return NF_HOOK(NFPROTO_BRIDGE, NF_BR_LOCAL_IN, skb, indev, NULL,
-+	return BR_HOOK(NFPROTO_BRIDGE, NF_BR_LOCAL_IN, skb, indev, NULL,
- 		       netif_receive_skb);
- }
- 
-@@ -219,7 +219,7 @@ rx_handler_result_t br_handle_frame(stru
- 		}
- 
- 		/* Deliver packet to local host only */
--		if (NF_HOOK(NFPROTO_BRIDGE, NF_BR_LOCAL_IN, skb, skb->dev,
-+		if (BR_HOOK(NFPROTO_BRIDGE, NF_BR_LOCAL_IN, skb, skb->dev,
- 			    NULL, br_handle_local_finish)) {
- 			return RX_HANDLER_CONSUMED; /* consumed by filter */
- 		} else {
-@@ -234,7 +234,7 @@ forward:
- 		if (ether_addr_equal(p->br->dev->dev_addr, dest))
- 			skb->pkt_type = PACKET_HOST;
- 
--		if (NF_HOOK(NFPROTO_BRIDGE, NF_BR_PRE_ROUTING, skb, skb->dev, NULL,
-+		if (BR_HOOK(NFPROTO_BRIDGE, NF_BR_PRE_ROUTING, skb, skb->dev, NULL,
- 			br_handle_local_finish))
- 			break;
- 
-@@ -256,7 +256,7 @@ forward:
- 		if (ether_addr_equal(p->br->dev->dev_addr, dest))
- 			skb->pkt_type = PACKET_HOST;
- 
--		NF_HOOK(NFPROTO_BRIDGE, NF_BR_PRE_ROUTING, skb, skb->dev, NULL,
-+		BR_HOOK(NFPROTO_BRIDGE, NF_BR_PRE_ROUTING, skb, skb->dev, NULL,
- 			br_handle_frame_finish);
- 		break;
- 	default:
---- a/net/bridge/br_multicast.c
-+++ b/net/bridge/br_multicast.c
-@@ -814,7 +814,7 @@ static void __br_multicast_send_query(st
- 
- 	if (port) {
- 		skb->dev = port->dev;
--		NF_HOOK(NFPROTO_BRIDGE, NF_BR_LOCAL_OUT, skb, NULL, skb->dev,
-+		BR_HOOK(NFPROTO_BRIDGE, NF_BR_LOCAL_OUT, skb, NULL, skb->dev,
- 			br_dev_queue_push_xmit);
- 	} else {
- 		br_multicast_select_own_querier(br, ip, skb);
---- a/net/bridge/br_netfilter.c
-+++ b/net/bridge/br_netfilter.c
-@@ -73,6 +73,15 @@ static int brnf_pass_vlan_indev __read_m
- #define IS_ARP(skb) \
- 	(!vlan_tx_tag_present(skb) && skb->protocol == htons(ETH_P_ARP))
- 
-+int brnf_call_ebtables __read_mostly = 0;
-+EXPORT_SYMBOL_GPL(brnf_call_ebtables);
-+
-+bool br_netfilter_run_hooks(void)
-+{
-+	return brnf_call_iptables | brnf_call_ip6tables | brnf_call_arptables |
-+	       brnf_call_ebtables;
-+}
-+
- static inline __be16 vlan_proto(const struct sk_buff *skb)
- {
- 	if (vlan_tx_tag_present(skb))
---- a/net/bridge/br_private.h
-+++ b/net/bridge/br_private.h
-@@ -778,6 +778,24 @@ static inline void br_nf_core_fini(void)
- #define br_netfilter_rtable_init(x)
- #endif
- 
-+#if IS_BUILTIN(CONFIG_BRIDGE_NETFILTER)
-+extern int brnf_call_ebtables;
-+bool br_netfilter_run_hooks(void);
-+#else
-+#define br_netfilter_run_hooks()	false
-+#endif
-+
-+static inline int
-+BR_HOOK(uint8_t pf, unsigned int hook, struct sk_buff *skb,
-+	struct net_device *in, struct net_device *out,
-+	int (*okfn)(struct sk_buff *))
-+{
-+	if (!br_netfilter_run_hooks())
-+		return okfn(skb);
-+
-+	return NF_HOOK(pf, hook, skb, in, out, okfn);
-+}
-+
- /* br_stp.c */
- void br_log_state(const struct net_bridge_port *p);
- void br_set_state(struct net_bridge_port *p, unsigned int state);
---- a/net/bridge/br_stp_bpdu.c
-+++ b/net/bridge/br_stp_bpdu.c
-@@ -54,7 +54,7 @@ static void br_send_bpdu(struct net_brid
- 
- 	skb_reset_mac_header(skb);
- 
--	NF_HOOK(NFPROTO_BRIDGE, NF_BR_LOCAL_OUT, skb, NULL, skb->dev,
-+	BR_HOOK(NFPROTO_BRIDGE, NF_BR_LOCAL_OUT, skb, NULL, skb->dev,
- 		dev_queue_xmit);
- }
- 
---- a/net/bridge/netfilter/ebtables.c
-+++ b/net/bridge/netfilter/ebtables.c
-@@ -2414,11 +2414,19 @@ static int __init ebtables_init(void)
- 	}
- 
- 	printk(KERN_INFO "Ebtables v2.0 registered\n");
-+
-+#if IS_BUILTIN(CONFIG_BRIDGE_NETFILTER)
-+	brnf_call_ebtables = 1;
-+#endif
-+
- 	return 0;
- }
- 
- static void __exit ebtables_fini(void)
- {
-+#if IS_BUILTIN(CONFIG_BRIDGE_NETFILTER)
-+	brnf_call_ebtables = 0;
-+#endif
- 	nf_unregister_sockopt(&ebt_sockopts);
- 	xt_unregister_target(&ebt_standard_target);
- 	printk(KERN_INFO "Ebtables v2.0 unregistered\n");
---- a/net/Kconfig
-+++ b/net/Kconfig
-@@ -177,11 +177,11 @@ config NETFILTER_ADVANCED
- 	  If unsure, say Y.
- 
- config BRIDGE_NETFILTER
--	tristate "Bridged IP/ARP packets filtering"
-+	bool "Bridged IP/ARP packets filtering"
- 	depends on BRIDGE
- 	depends on NETFILTER && INET
- 	depends on NETFILTER_ADVANCED
--	default m
-+	default y
- 	---help---
- 	  Enabling this option will let arptables resp. iptables see bridged
- 	  ARP resp. IP traffic. If you want a bridging firewall, you probably