tipc: Don't use structure names which easily globally conflict.

Andrew Morton reported a build failure on sparc32, because TIPC
uses names like "struct node" and there is a like named data
structure defined in linux/node.h

This just regexp replaces "struct node*" to "struct tipc_node*"
to avoid this and any future similar problems.

Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/tipc/discover.c b/net/tipc/discover.c
index 1657f0e..74b7d1e 100644
--- a/net/tipc/discover.c
+++ b/net/tipc/discover.c
@@ -193,7 +193,7 @@
 		/* Always accept link here */
 		struct sk_buff *rbuf;
 		struct tipc_media_addr *addr;
-		struct node *n_ptr = tipc_node_find(orig);
+		struct tipc_node *n_ptr = tipc_node_find(orig);
 		int link_fully_up;
 
 		dbg(" in own cluster\n");