[PATCH 11/38] backports: stub structs but remove ndo_fill_forward_path

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From: Johannes Berg <johannes.berg@xxxxxxxxx>

Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
---
 backport/backport-include/linux/netdevice.h | 55 +++++++++++++++++++++
 patches/0107-net-forward-path.cocci         | 19 +++++++
 2 files changed, 74 insertions(+)
 create mode 100644 patches/0107-net-forward-path.cocci

diff --git a/backport/backport-include/linux/netdevice.h b/backport/backport-include/linux/netdevice.h
index c6ca8b5556d5..d2e175243560 100644
--- a/backport/backport-include/linux/netdevice.h
+++ b/backport/backport-include/linux/netdevice.h
@@ -199,4 +199,59 @@ static inline void backport_dev_hold(struct net_device *dev)
 #define dev_hold LINUX_BACKPORT(dev_hold)
 #endif /* < 5.15 */
 
+#ifndef NET_DEVICE_PATH_STACK_MAX
+enum net_device_path_type {
+	DEV_PATH_ETHERNET = 0,
+	DEV_PATH_VLAN,
+	DEV_PATH_BRIDGE,
+	DEV_PATH_PPPOE,
+	DEV_PATH_DSA,
+};
+
+struct net_device_path {
+	enum net_device_path_type	type;
+	const struct net_device		*dev;
+	union {
+		struct {
+			u16		id;
+			__be16		proto;
+			u8		h_dest[ETH_ALEN];
+		} encap;
+		struct {
+			enum {
+				DEV_PATH_BR_VLAN_KEEP,
+				DEV_PATH_BR_VLAN_TAG,
+				DEV_PATH_BR_VLAN_UNTAG,
+				DEV_PATH_BR_VLAN_UNTAG_HW,
+			}		vlan_mode;
+			u16		vlan_id;
+			__be16		vlan_proto;
+		} bridge;
+		struct {
+			int port;
+			u16 proto;
+		} dsa;
+	};
+};
+
+#define NET_DEVICE_PATH_STACK_MAX	5
+#define NET_DEVICE_PATH_VLAN_MAX	2
+
+struct net_device_path_stack {
+	int			num_paths;
+	struct net_device_path	path[NET_DEVICE_PATH_STACK_MAX];
+};
+
+struct net_device_path_ctx {
+	const struct net_device *dev;
+	const u8		*daddr;
+
+	int			num_vlans;
+	struct {
+		u16		id;
+		__be16		proto;
+	} vlan[NET_DEVICE_PATH_VLAN_MAX];
+};
+#endif /* NET_DEVICE_PATH_STACK_MAX */
+
 #endif /* __BACKPORT_NETDEVICE_H */
diff --git a/patches/0107-net-forward-path.cocci b/patches/0107-net-forward-path.cocci
new file mode 100644
index 000000000000..f612239404a6
--- /dev/null
+++ b/patches/0107-net-forward-path.cocci
@@ -0,0 +1,19 @@
+@ops@
+identifier ops, fn;
+@@
+const struct net_device_ops ops = {
++#if LINUX_VERSION_IS_GEQ(5,13,0)
+  .ndo_fill_forward_path = fn,
++#endif
+  ...
+};
+
+@@
+identifier ops.fn;
+@@
++#if LINUX_VERSION_IS_GEQ(5,13,0)
+int fn(...)
+{
+...
+}
++#endif /* LINUX_VERSION_IS_GEQ(5,13,0) */
-- 
2.37.3

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