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2023-12-08 01573e231f18eb2d99162747186f59511f56b64d

 kernel/net/tipc/bearer.h
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@@ -119,7 +119,8 @@
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 			char *raw);
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 	u32 priority;
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 	u32 tolerance;
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-	u32 window;
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+	u32 min_win;
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+	u32 max_win;
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 	u32 mtu;
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 	u32 type_id;
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 	u32 hwaddr_len;
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@@ -158,13 +159,15 @@
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 	struct packet_type pt;
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 	struct rcu_head rcu;
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 	u32 priority;
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-	u32 window;
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+	u32 min_win;
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+	u32 max_win;
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 	u32 tolerance;
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 	u32 domain;
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 	u32 identity;
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 	struct tipc_discoverer *disc;
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 	char net_plane;
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 	unsigned long up;
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+	refcount_t refcnt;
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 };
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 struct tipc_bearer_names {
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@@ -207,9 +210,11 @@
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 int tipc_media_set_priority(const char *name, u32 new_value);
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 int tipc_media_set_window(const char *name, u32 new_value);
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-void tipc_media_addr_printf(char *buf, int len, struct tipc_media_addr *a);
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+int tipc_media_addr_printf(char *buf, int len, struct tipc_media_addr *a);
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 int tipc_enable_l2_media(struct net *net, struct tipc_bearer *b,
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 			 struct nlattr *attrs[]);
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+bool tipc_bearer_hold(struct tipc_bearer *b);
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+void tipc_bearer_put(struct tipc_bearer *b);
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 void tipc_disable_l2_media(struct tipc_bearer *b);
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 int tipc_l2_send_msg(struct net *net, struct sk_buff *buf,
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 		     struct tipc_bearer *b, struct tipc_media_addr *dest);
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@@ -229,9 +234,20 @@
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 			  struct tipc_media_addr *dest);
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 void tipc_bearer_xmit(struct net *net, u32 bearer_id,
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 		      struct sk_buff_head *xmitq,
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-		      struct tipc_media_addr *dst);
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+		      struct tipc_media_addr *dst,
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+		      struct tipc_node *__dnode);
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 void tipc_bearer_bc_xmit(struct net *net, u32 bearer_id,
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 			 struct sk_buff_head *xmitq);
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+void tipc_clone_to_loopback(struct net *net, struct sk_buff_head *pkts);
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+int tipc_attach_loopback(struct net *net);
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+void tipc_detach_loopback(struct net *net);
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+
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+static inline void tipc_loopback_trace(struct net *net,
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+				       struct sk_buff_head *pkts)
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+{
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+	if (unlikely(dev_nit_active(net->loopback_dev)))
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+		tipc_clone_to_loopback(net, pkts);
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+}
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 /* check if device MTU is too low for tipc headers */
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 static inline bool tipc_mtu_bad(struct net_device *dev, unsigned int reserve)