kernel: remove nf_flow_table hardware offload patch (it is not ready yet)

It also does not have any users yet. It will be addde back when the core
API issues have been sorted out

Signed-off-by: Felix Fietkau <nbd@nbd.name>

package/kernel/linux/modules/netfilter.mk

@@ -149,9 +149,8 @@ define KernelPackage/nf-flow
 	CONFIG_NF_FLOW_TABLE_HW
   DEPENDS:=+kmod-nf-conntrack @!LINUX_3_18 @!LINUX_4_4 @!LINUX_4_9
   FILES:= \
-	$(LINUX_DIR)/net/netfilter/nf_flow_table.ko \
+	$(LINUX_DIR)/net/netfilter/nf_flow_table.ko
-	$(LINUX_DIR)/net/netfilter/nf_flow_table_hw.ko
+  AUTOLOAD:=$(call AutoProbe,nf_flow_table)
-  AUTOLOAD:=$(call AutoProbe,nf_flow_table nf_flow_table_hw)
 endef
 
 $(eval $(call KernelPackage,nf-flow))

target/linux/generic/backport-4.14/360-netfilter-nf_flow_table-add-hardware-offload-support.patch

@@ -1,566 +0,0 @@
-From: Pablo Neira Ayuso <pablo@netfilter.org>
-Date: Thu, 11 Jan 2018 16:32:00 +0100
-Subject: [PATCH] netfilter: nf_flow_table: add hardware offload support
-
-This patch adds the infrastructure to offload flows to hardware, in case
-the nic/switch comes with built-in flow tables capabilities.
-
-If the hardware comes with no hardware flow tables or they have
-limitations in terms of features, the existing infrastructure falls back
-to the software flow table implementation.
-
-The software flow table garbage collector skips entries that resides in
-the hardware, so the hardware will be responsible for releasing this
-flow table entry too via flow_offload_dead().
-
-Hardware configuration, either to add or to delete entries, is done from
-the hardware offload workqueue, to ensure this is done from user context
-given that we may sleep when grabbing the mdio mutex.
-
-Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
----
- create mode 100644 net/netfilter/nf_flow_table_hw.c
-
---- a/include/linux/netdevice.h
-+++ b/include/linux/netdevice.h
-@@ -826,6 +826,13 @@ struct xfrmdev_ops {
- };
- #endif
- 
-+struct flow_offload;
-+
-+enum flow_offload_type {
-+	FLOW_OFFLOAD_ADD	= 0,
-+	FLOW_OFFLOAD_DEL,
-+};
-+
- /*
-  * This structure defines the management hooks for network devices.
-  * The following hooks can be defined; unless noted otherwise, they are
-@@ -1057,6 +1064,10 @@ struct xfrmdev_ops {
-  * int (*ndo_bridge_dellink)(struct net_device *dev, struct nlmsghdr *nlh,
-  *			     u16 flags);
-  *
-+ * int (*ndo_flow_offload)(enum flow_offload_type type,
-+ *			   struct flow_offload *flow);
-+ *	Adds/deletes flow entry to/from net device flowtable.
-+ *
-  * int (*ndo_change_carrier)(struct net_device *dev, bool new_carrier);
-  *	Called to change device carrier. Soft-devices (like dummy, team, etc)
-  *	which do not represent real hardware may define this to allow their
-@@ -1281,6 +1292,8 @@ struct net_device_ops {
- 	int			(*ndo_bridge_dellink)(struct net_device *dev,
- 						      struct nlmsghdr *nlh,
- 						      u16 flags);
-+	int			(*ndo_flow_offload)(enum flow_offload_type type,
-+						    struct flow_offload *flow);
- 	int			(*ndo_change_carrier)(struct net_device *dev,
- 						      bool new_carrier);
- 	int			(*ndo_get_phys_port_id)(struct net_device *dev,
---- a/include/net/netfilter/nf_flow_table.h
-+++ b/include/net/netfilter/nf_flow_table.h
-@@ -20,11 +20,17 @@ struct nf_flowtable_type {
- 	struct module			*owner;
- };
- 
-+enum nf_flowtable_flags {
-+	NF_FLOWTABLE_F_HW		= 0x1,
-+};
-+
- struct nf_flowtable {
- 	struct list_head		list;
- 	struct rhashtable		rhashtable;
- 	const struct nf_flowtable_type	*type;
-+	u32				flags;
- 	struct delayed_work		gc_work;
-+	possible_net_t			ft_net;
- };
- 
- enum flow_offload_tuple_dir {
-@@ -68,6 +74,7 @@ struct flow_offload_tuple_rhash {
- #define FLOW_OFFLOAD_SNAT	0x1
- #define FLOW_OFFLOAD_DNAT	0x2
- #define FLOW_OFFLOAD_DYING	0x4
-+#define FLOW_OFFLOAD_HW		0x8
- 
- struct flow_offload {
- 	struct flow_offload_tuple_rhash		tuplehash[FLOW_OFFLOAD_DIR_MAX];
-@@ -121,6 +128,22 @@ unsigned int nf_flow_offload_ip_hook(voi
- unsigned int nf_flow_offload_ipv6_hook(void *priv, struct sk_buff *skb,
- 				       const struct nf_hook_state *state);
- 
-+void nf_flow_offload_hw_add(struct net *net, struct flow_offload *flow,
-+			    struct nf_conn *ct);
-+void nf_flow_offload_hw_del(struct net *net, struct flow_offload *flow);
-+
-+struct nf_flow_table_hw {
-+	struct module	*owner;
-+	void		(*add)(struct net *net, struct flow_offload *flow,
-+			       struct nf_conn *ct);
-+	void		(*del)(struct net *net, struct flow_offload *flow);
-+};
-+
-+int nf_flow_table_hw_register(const struct nf_flow_table_hw *offload);
-+void nf_flow_table_hw_unregister(const struct nf_flow_table_hw *offload);
-+
-+extern struct work_struct nf_flow_offload_hw_work;
-+
- #define MODULE_ALIAS_NF_FLOWTABLE(family)	\
- 	MODULE_ALIAS("nf-flowtable-" __stringify(family))
- 
---- a/include/uapi/linux/netfilter/nf_tables.h
-+++ b/include/uapi/linux/netfilter/nf_tables.h
-@@ -1341,6 +1341,7 @@ enum nft_object_attributes {
-  * @NFTA_FLOWTABLE_HOOK: netfilter hook configuration(NLA_U32)
-  * @NFTA_FLOWTABLE_USE: number of references to this flow table (NLA_U32)
-  * @NFTA_FLOWTABLE_HANDLE: object handle (NLA_U64)
-+ * @NFTA_FLOWTABLE_FLAGS: flags (NLA_U32)
-  */
- enum nft_flowtable_attributes {
- 	NFTA_FLOWTABLE_UNSPEC,
-@@ -1350,6 +1351,7 @@ enum nft_flowtable_attributes {
- 	NFTA_FLOWTABLE_USE,
- 	NFTA_FLOWTABLE_HANDLE,
- 	NFTA_FLOWTABLE_PAD,
-+	NFTA_FLOWTABLE_FLAGS,
- 	__NFTA_FLOWTABLE_MAX
- };
- #define NFTA_FLOWTABLE_MAX	(__NFTA_FLOWTABLE_MAX - 1)
---- a/net/netfilter/Kconfig
-+++ b/net/netfilter/Kconfig
-@@ -686,6 +686,15 @@ config NF_FLOW_TABLE
- 
- 	  To compile it as a module, choose M here.
- 
-+config NF_FLOW_TABLE_HW
-+	tristate "Netfilter flow table hardware offload module"
-+	depends on NF_FLOW_TABLE
-+	help
-+	  This option adds hardware offload support for the flow table core
-+	  infrastructure.
-+
-+	  To compile it as a module, choose M here.
-+
- config NETFILTER_XTABLES
- 	tristate "Netfilter Xtables support (required for ip_tables)"
- 	default m if NETFILTER_ADVANCED=n
---- a/net/netfilter/Makefile
-+++ b/net/netfilter/Makefile
-@@ -116,6 +116,7 @@ obj-$(CONFIG_NF_FLOW_TABLE)	+= nf_flow_t
- nf_flow_table-objs := nf_flow_table_core.o nf_flow_table_ip.o
- 
- obj-$(CONFIG_NF_FLOW_TABLE_INET) += nf_flow_table_inet.o
-+obj-$(CONFIG_NF_FLOW_TABLE_HW)	+= nf_flow_table_hw.o
- 
- # generic X tables 
- obj-$(CONFIG_NETFILTER_XTABLES) += x_tables.o xt_tcpudp.o
---- a/net/netfilter/nf_flow_table_core.c
-+++ b/net/netfilter/nf_flow_table_core.c
-@@ -167,9 +167,16 @@ int flow_offload_add(struct nf_flowtable
- }
- EXPORT_SYMBOL_GPL(flow_offload_add);
- 
-+static inline bool nf_flow_in_hw(const struct flow_offload *flow)
-+{
-+	return flow->flags & FLOW_OFFLOAD_HW;
-+}
-+
- static void flow_offload_del(struct nf_flowtable *flow_table,
- 			     struct flow_offload *flow)
- {
-+	struct net *net = read_pnet(&flow_table->ft_net);
-+
- 	rhashtable_remove_fast(&flow_table->rhashtable,
- 			       &flow->tuplehash[FLOW_OFFLOAD_DIR_ORIGINAL].node,
- 			       nf_flow_offload_rhash_params);
-@@ -177,6 +184,9 @@ static void flow_offload_del(struct nf_f
- 			       &flow->tuplehash[FLOW_OFFLOAD_DIR_REPLY].node,
- 			       nf_flow_offload_rhash_params);
- 
-+	if (nf_flow_in_hw(flow))
-+		nf_flow_offload_hw_del(net, flow);
-+
- 	flow_offload_free(flow);
- }
- 
-@@ -263,6 +273,10 @@ static int nf_flow_offload_gc_step(struc
- 
- 		flow = container_of(tuplehash, struct flow_offload, tuplehash[0]);
- 
-+		if (nf_flow_in_hw(flow) &&
-+		    !nf_flow_is_dying(flow))
-+			continue;
-+
- 		if (nf_flow_has_expired(flow) ||
- 		    nf_flow_is_dying(flow))
- 			flow_offload_del(flow_table, flow);
-@@ -399,10 +413,43 @@ int nf_flow_dnat_port(const struct flow_
- }
- EXPORT_SYMBOL_GPL(nf_flow_dnat_port);
- 
-+static const struct nf_flow_table_hw __rcu *nf_flow_table_hw_hook __read_mostly;
-+
-+static int nf_flow_offload_hw_init(struct nf_flowtable *flow_table)
-+{
-+	const struct nf_flow_table_hw *offload;
-+
-+	if (!rcu_access_pointer(nf_flow_table_hw_hook))
-+		request_module("nf-flow-table-hw");
-+
-+	rcu_read_lock();
-+	offload = rcu_dereference(nf_flow_table_hw_hook);
-+	if (!offload)
-+		goto err_no_hw_offload;
-+
-+	if (!try_module_get(offload->owner))
-+		goto err_no_hw_offload;
-+
-+	rcu_read_unlock();
-+
-+	return 0;
-+
-+err_no_hw_offload:
-+	rcu_read_unlock();
-+
-+	return -EOPNOTSUPP;
-+}
-+
- int nf_flow_table_init(struct nf_flowtable *flowtable)
- {
- 	int err;
- 
-+	if (flowtable->flags & NF_FLOWTABLE_F_HW) {
-+		err = nf_flow_offload_hw_init(flowtable);
-+		if (err)
-+			return err;
-+	}
-+
- 	INIT_DEFERRABLE_WORK(&flowtable->gc_work, nf_flow_offload_work_gc);
- 
- 	err = rhashtable_init(&flowtable->rhashtable,
-@@ -436,6 +483,8 @@ static void nf_flow_table_iterate_cleanu
- {
- 	nf_flow_table_iterate(flowtable, nf_flow_table_do_cleanup, dev);
- 	flush_delayed_work(&flowtable->gc_work);
-+	if (flowtable->flags & NF_FLOWTABLE_F_HW)
-+		flush_work(&nf_flow_offload_hw_work);
- }
- 
- void nf_flow_table_cleanup(struct net *net, struct net_device *dev)
-@@ -449,6 +498,26 @@ void nf_flow_table_cleanup(struct net *n
- }
- EXPORT_SYMBOL_GPL(nf_flow_table_cleanup);
- 
-+struct work_struct nf_flow_offload_hw_work;
-+EXPORT_SYMBOL_GPL(nf_flow_offload_hw_work);
-+
-+/* Give the hardware workqueue the chance to remove entries from hardware.*/
-+static void nf_flow_offload_hw_free(struct nf_flowtable *flowtable)
-+{
-+	const struct nf_flow_table_hw *offload;
-+
-+	flush_work(&nf_flow_offload_hw_work);
-+
-+	rcu_read_lock();
-+	offload = rcu_dereference(nf_flow_table_hw_hook);
-+	if (!offload) {
-+		rcu_read_unlock();
-+		return;
-+	}
-+	module_put(offload->owner);
-+	rcu_read_unlock();
-+}
-+
- void nf_flow_table_free(struct nf_flowtable *flow_table)
- {
- 	mutex_lock(&flowtable_lock);
-@@ -458,9 +527,58 @@ void nf_flow_table_free(struct nf_flowta
- 	nf_flow_table_iterate(flow_table, nf_flow_table_do_cleanup, NULL);
- 	WARN_ON(!nf_flow_offload_gc_step(flow_table));
- 	rhashtable_destroy(&flow_table->rhashtable);
-+	if (flow_table->flags & NF_FLOWTABLE_F_HW)
-+		nf_flow_offload_hw_free(flow_table);
- }
- EXPORT_SYMBOL_GPL(nf_flow_table_free);
- 
-+/* Must be called from user context. */
-+void nf_flow_offload_hw_add(struct net *net, struct flow_offload *flow,
-+			    struct nf_conn *ct)
-+{
-+	const struct nf_flow_table_hw *offload;
-+
-+	rcu_read_lock();
-+	offload = rcu_dereference(nf_flow_table_hw_hook);
-+	if (offload)
-+		offload->add(net, flow, ct);
-+	rcu_read_unlock();
-+}
-+EXPORT_SYMBOL_GPL(nf_flow_offload_hw_add);
-+
-+/* Must be called from user context. */
-+void nf_flow_offload_hw_del(struct net *net, struct flow_offload *flow)
-+{
-+	const struct nf_flow_table_hw *offload;
-+
-+	rcu_read_lock();
-+	offload = rcu_dereference(nf_flow_table_hw_hook);
-+	if (offload)
-+		offload->del(net, flow);
-+	rcu_read_unlock();
-+}
-+EXPORT_SYMBOL_GPL(nf_flow_offload_hw_del);
-+
-+int nf_flow_table_hw_register(const struct nf_flow_table_hw *offload)
-+{
-+	if (rcu_access_pointer(nf_flow_table_hw_hook))
-+		return -EBUSY;
-+
-+	rcu_assign_pointer(nf_flow_table_hw_hook, offload);
-+
-+	return 0;
-+}
-+EXPORT_SYMBOL_GPL(nf_flow_table_hw_register);
-+
-+void nf_flow_table_hw_unregister(const struct nf_flow_table_hw *offload)
-+{
-+	WARN_ON(rcu_access_pointer(nf_flow_table_hw_hook) != offload);
-+	rcu_assign_pointer(nf_flow_table_hw_hook, NULL);
-+
-+	synchronize_rcu();
-+}
-+EXPORT_SYMBOL_GPL(nf_flow_table_hw_unregister);
-+
- static int nf_flow_table_netdev_event(struct notifier_block *this,
- 				      unsigned long event, void *ptr)
- {
---- /dev/null
-+++ b/net/netfilter/nf_flow_table_hw.c
-@@ -0,0 +1,169 @@
-+#include <linux/kernel.h>
-+#include <linux/init.h>
-+#include <linux/module.h>
-+#include <linux/netfilter.h>
-+#include <linux/rhashtable.h>
-+#include <linux/netdevice.h>
-+#include <net/netfilter/nf_flow_table.h>
-+#include <net/netfilter/nf_conntrack.h>
-+#include <net/netfilter/nf_conntrack_core.h>
-+#include <net/netfilter/nf_conntrack_tuple.h>
-+
-+static DEFINE_SPINLOCK(flow_offload_hw_pending_list_lock);
-+static LIST_HEAD(flow_offload_hw_pending_list);
-+
-+static DEFINE_MUTEX(nf_flow_offload_hw_mutex);
-+
-+struct flow_offload_hw {
-+	struct list_head	list;
-+	enum flow_offload_type	type;
-+	struct flow_offload	*flow;
-+	struct nf_conn		*ct;
-+	possible_net_t		flow_hw_net;
-+};
-+
-+static int do_flow_offload_hw(struct net *net, struct flow_offload *flow,
-+			      int type)
-+{
-+	struct net_device *indev;
-+	int ret, ifindex;
-+
-+	ifindex = flow->tuplehash[FLOW_OFFLOAD_DIR_ORIGINAL].tuple.iifidx;
-+	indev = dev_get_by_index(net, ifindex);
-+	if (WARN_ON(!indev))
-+		return 0;
-+
-+	mutex_lock(&nf_flow_offload_hw_mutex);
-+	ret = indev->netdev_ops->ndo_flow_offload(type, flow);
-+	mutex_unlock(&nf_flow_offload_hw_mutex);
-+
-+	dev_put(indev);
-+
-+	return ret;
-+}
-+
-+static void flow_offload_hw_work_add(struct flow_offload_hw *offload)
-+{
-+	struct net *net;
-+	int ret;
-+
-+	if (nf_ct_is_dying(offload->ct))
-+		return;
-+
-+	net = read_pnet(&offload->flow_hw_net);
-+	ret = do_flow_offload_hw(net, offload->flow, FLOW_OFFLOAD_ADD);
-+	if (ret >= 0)
-+		offload->flow->flags |= FLOW_OFFLOAD_HW;
-+}
-+
-+static void flow_offload_hw_work_del(struct flow_offload_hw *offload)
-+{
-+	struct net *net = read_pnet(&offload->flow_hw_net);
-+
-+	do_flow_offload_hw(net, offload->flow, FLOW_OFFLOAD_DEL);
-+}
-+
-+static void flow_offload_hw_work(struct work_struct *work)
-+{
-+	struct flow_offload_hw *offload, *next;
-+	LIST_HEAD(hw_offload_pending);
-+
-+	spin_lock_bh(&flow_offload_hw_pending_list_lock);
-+	list_replace_init(&flow_offload_hw_pending_list, &hw_offload_pending);
-+	spin_unlock_bh(&flow_offload_hw_pending_list_lock);
-+
-+	list_for_each_entry_safe(offload, next, &hw_offload_pending, list) {
-+		switch (offload->type) {
-+		case FLOW_OFFLOAD_ADD:
-+			flow_offload_hw_work_add(offload);
-+			break;
-+		case FLOW_OFFLOAD_DEL:
-+			flow_offload_hw_work_del(offload);
-+			break;
-+		}
-+		if (offload->ct)
-+			nf_conntrack_put(&offload->ct->ct_general);
-+		list_del(&offload->list);
-+		kfree(offload);
-+	}
-+}
-+
-+static void flow_offload_queue_work(struct flow_offload_hw *offload)
-+{
-+	spin_lock_bh(&flow_offload_hw_pending_list_lock);
-+	list_add_tail(&offload->list, &flow_offload_hw_pending_list);
-+	spin_unlock_bh(&flow_offload_hw_pending_list_lock);
-+
-+	schedule_work(&nf_flow_offload_hw_work);
-+}
-+
-+static void flow_offload_hw_add(struct net *net, struct flow_offload *flow,
-+				struct nf_conn *ct)
-+{
-+	struct flow_offload_hw *offload;
-+
-+	offload = kmalloc(sizeof(struct flow_offload_hw), GFP_ATOMIC);
-+	if (!offload)
-+		return;
-+
-+	nf_conntrack_get(&ct->ct_general);
-+	offload->type = FLOW_OFFLOAD_ADD;
-+	offload->ct = ct;
-+	offload->flow = flow;
-+	write_pnet(&offload->flow_hw_net, net);
-+
-+	flow_offload_queue_work(offload);
-+}
-+
-+static void flow_offload_hw_del(struct net *net, struct flow_offload *flow)
-+{
-+	struct flow_offload_hw *offload;
-+
-+	offload = kmalloc(sizeof(struct flow_offload_hw), GFP_ATOMIC);
-+	if (!offload)
-+		return;
-+
-+	offload->type = FLOW_OFFLOAD_DEL;
-+	offload->ct = NULL;
-+	offload->flow = flow;
-+	write_pnet(&offload->flow_hw_net, net);
-+
-+	flow_offload_queue_work(offload);
-+}
-+
-+static const struct nf_flow_table_hw flow_offload_hw = {
-+	.add	= flow_offload_hw_add,
-+	.del	= flow_offload_hw_del,
-+	.owner	= THIS_MODULE,
-+};
-+
-+static int __init nf_flow_table_hw_module_init(void)
-+{
-+	INIT_WORK(&nf_flow_offload_hw_work, flow_offload_hw_work);
-+	nf_flow_table_hw_register(&flow_offload_hw);
-+
-+	return 0;
-+}
-+
-+static void __exit nf_flow_table_hw_module_exit(void)
-+{
-+	struct flow_offload_hw *offload, *next;
-+	LIST_HEAD(hw_offload_pending);
-+
-+	nf_flow_table_hw_unregister(&flow_offload_hw);
-+	cancel_work_sync(&nf_flow_offload_hw_work);
-+
-+	list_for_each_entry_safe(offload, next, &hw_offload_pending, list) {
-+		if (offload->ct)
-+			nf_conntrack_put(&offload->ct->ct_general);
-+		list_del(&offload->list);
-+		kfree(offload);
-+	}
-+}
-+
-+module_init(nf_flow_table_hw_module_init);
-+module_exit(nf_flow_table_hw_module_exit);
-+
-+MODULE_LICENSE("GPL");
-+MODULE_AUTHOR("Pablo Neira Ayuso <pablo@netfilter.org>");
-+MODULE_ALIAS("nf-flow-table-hw");
---- a/net/netfilter/nf_tables_api.c
-+++ b/net/netfilter/nf_tables_api.c
-@@ -4866,6 +4866,14 @@ static int nf_tables_flowtable_parse_hoo
- 	if (err < 0)
- 		goto err1;
- 
-+	for (i = 0; i < n; i++) {
-+		if (flowtable->data.flags & NF_FLOWTABLE_F_HW &&
-+		    !dev_array[i]->netdev_ops->ndo_flow_offload) {
-+			err = -EOPNOTSUPP;
-+			goto err1;
-+		}
-+	}
-+
- 	ops = kzalloc(sizeof(struct nf_hook_ops) * n, GFP_KERNEL);
- 	if (!ops) {
- 		err = -ENOMEM;
-@@ -4996,10 +5004,19 @@ static int nf_tables_newflowtable(struct
- 	}
- 
- 	flowtable->data.type = type;
-+	write_pnet(&flowtable->data.ft_net, net);
-+
- 	err = type->init(&flowtable->data);
- 	if (err < 0)
- 		goto err3;
- 
-+	if (nla[NFTA_FLOWTABLE_FLAGS]) {
-+		flowtable->data.flags =
-+			ntohl(nla_get_be32(nla[NFTA_FLOWTABLE_FLAGS]));
-+		if (flowtable->data.flags & ~NF_FLOWTABLE_F_HW)
-+			goto err4;
-+	}
-+
- 	err = nf_tables_flowtable_parse_hook(&ctx, nla[NFTA_FLOWTABLE_HOOK],
- 					     flowtable);
- 	if (err < 0)
-@@ -5097,7 +5114,8 @@ static int nf_tables_fill_flowtable_info
- 	    nla_put_string(skb, NFTA_FLOWTABLE_NAME, flowtable->name) ||
- 	    nla_put_be32(skb, NFTA_FLOWTABLE_USE, htonl(flowtable->use)) ||
- 	    nla_put_be64(skb, NFTA_FLOWTABLE_HANDLE, cpu_to_be64(flowtable->handle),
--			 NFTA_FLOWTABLE_PAD))
-+			 NFTA_FLOWTABLE_PAD) ||
-+	    nla_put_be32(skb, NFTA_FLOWTABLE_FLAGS, htonl(flowtable->data.flags)))
- 		goto nla_put_failure;
- 
- 	nest = nla_nest_start(skb, NFTA_FLOWTABLE_HOOK);
---- a/net/netfilter/nft_flow_offload.c
-+++ b/net/netfilter/nft_flow_offload.c
-@@ -110,6 +110,9 @@ static void nft_flow_offload_eval(const
- 	if (ret < 0)
- 		goto err_flow_add;
- 
-+	if (flowtable->flags & NF_FLOWTABLE_F_HW)
-+		nf_flow_offload_hw_add(nft_net(pkt), flow, ct);
-+
- 	return;
- 
- err_flow_add:

target/linux/generic/hack-4.14/250-netfilter_depends.patch

@@ -17,7 +17,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
  	depends on NETFILTER_ADVANCED
  	help
  	  H.323 is a VoIP signalling protocol from ITU-T. As one of the most
-@@ -1046,7 +1045,6 @@ config NETFILTER_XT_TARGET_SECMARK
+@@ -1037,7 +1036,6 @@ config NETFILTER_XT_TARGET_SECMARK
  
  config NETFILTER_XT_TARGET_TCPMSS
  	tristate '"TCPMSS" target support'

target/linux/generic/hack-4.14/650-netfilter-add-xt_OFFLOAD-target.patch

@@ -70,7 +70,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
  	help
  	  This option adds the flow table core infrastructure.
  
-@@ -968,6 +967,15 @@ config NETFILTER_XT_TARGET_NOTRACK
+@@ -959,6 +958,15 @@ config NETFILTER_XT_TARGET_NOTRACK
  	depends on NETFILTER_ADVANCED
  	select NETFILTER_XT_TARGET_CT
  
@@ -88,7 +88,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
  	depends on NETFILTER_ADVANCED
 --- a/net/netfilter/Makefile
 +++ b/net/netfilter/Makefile
-@@ -134,6 +134,7 @@ obj-$(CONFIG_NETFILTER_XT_TARGET_CLASSIF
+@@ -133,6 +133,7 @@ obj-$(CONFIG_NETFILTER_XT_TARGET_CLASSIF
  obj-$(CONFIG_NETFILTER_XT_TARGET_CONNSECMARK) += xt_CONNSECMARK.o
  obj-$(CONFIG_NETFILTER_XT_TARGET_CT) += xt_CT.o
  obj-$(CONFIG_NETFILTER_XT_TARGET_DSCP) += xt_DSCP.o

target/linux/generic/hack-4.14/721-phy_packets.patch

@@ -15,7 +15,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
 
 --- a/include/linux/netdevice.h
 +++ b/include/linux/netdevice.h
-@@ -1399,6 +1399,7 @@ enum netdev_priv_flags {
+@@ -1386,6 +1386,7 @@ enum netdev_priv_flags {
  	IFF_RXFH_CONFIGURED		= 1<<25,
  	IFF_PHONY_HEADROOM		= 1<<26,
  	IFF_MACSEC			= 1<<27,
@@ -23,7 +23,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
  };
  
  #define IFF_802_1Q_VLAN			IFF_802_1Q_VLAN
-@@ -1428,6 +1429,7 @@ enum netdev_priv_flags {
+@@ -1415,6 +1416,7 @@ enum netdev_priv_flags {
  #define IFF_TEAM			IFF_TEAM
  #define IFF_RXFH_CONFIGURED		IFF_RXFH_CONFIGURED
  #define IFF_MACSEC			IFF_MACSEC
@@ -31,7 +31,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
  
  /**
   *	struct net_device - The DEVICE structure.
-@@ -1714,6 +1716,11 @@ struct net_device {
+@@ -1701,6 +1703,11 @@ struct net_device {
  	const struct xfrmdev_ops *xfrmdev_ops;
  #endif
  
@@ -43,7 +43,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
  	const struct header_ops *header_ops;
  
  	unsigned int		flags;
-@@ -1783,6 +1790,10 @@ struct net_device {
+@@ -1770,6 +1777,10 @@ struct net_device {
  	struct mpls_dev __rcu	*mpls_ptr;
  #endif
  

target/linux/generic/pending-4.14/680-NET-skip-GRO-for-foreign-MAC-addresses.patch

@@ -11,7 +11,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
 
 --- a/include/linux/netdevice.h
 +++ b/include/linux/netdevice.h
-@@ -1752,6 +1752,8 @@ struct net_device {
+@@ -1739,6 +1739,8 @@ struct net_device {
  	struct netdev_hw_addr_list	mc;
  	struct netdev_hw_addr_list	dev_addrs;