tipc: move all link_reset() calls to link aggregation level

In line with our effort to let the node level have full control over
its links, we want to move all link reset calls from link.c to node.c.
Some of the calls can be moved by simply moving the calling function,
when this is the right thing to do. For the remaining calls we use
the now established technique of returning a TIPC_LINK_DOWN_EVT
flag from tipc_link_rcv(), whereafter we perform the reset call when
the call returns.

This change serves as a preparation for the coming commits.

Tested-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/tipc/node.h b/net/tipc/node.h
index 5e70168..49df0e93 100644
--- a/net/tipc/node.h
+++ b/net/tipc/node.h
@@ -171,6 +171,7 @@
 			  struct tipc_media_addr *maddr);
 bool tipc_node_update_dest(struct tipc_node *n, struct tipc_bearer *bearer,
 			   struct tipc_media_addr *maddr);
+void tipc_node_delete_links(struct net *net, int bearer_id);
 void tipc_node_attach_link(struct tipc_node *n_ptr, struct tipc_link *l_ptr);
 void tipc_node_detach_link(struct tipc_node *n_ptr, struct tipc_link *l_ptr);
 void tipc_node_link_down(struct tipc_node *n_ptr, int bearer_id);