tipc: Prune unused data structures from configuration service

Eliminate some unused data structures in the TIPC
configuration service that relate to the handling of link
subscriptions, which were not supported when TIPC 1.5 was
introduced.  If and when support for link subscriptions is
offered in TIPC, these elements may need to be re-introduced.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/tipc/config.c

@@ -56,9 +56,6 @@ struct subscr_data {
 struct manager {
 	u32 user_ref;
 	u32 port_ref;
-	u32 subscr_ref;
-	u32 link_subscriptions;
-	struct list_head link_subscribers;
 };
 
 static struct manager mng = { 0};
@@ -70,12 +67,6 @@ static int req_tlv_space;		/* request message TLV area size */
 static int rep_headroom;		/* reply message headroom to use */
 
 
-void tipc_cfg_link_event(u32 addr, char *name, int up)
-{
-	/* TIPC DOESN'T HANDLE LINK EVENT SUBSCRIPTIONS AT THE MOMENT */
-}
-
-
 struct sk_buff *tipc_cfg_reply_alloc(int payload_size)
 {
 	struct sk_buff *buf;
@@ -130,12 +121,24 @@ struct sk_buff *tipc_cfg_reply_string_type(u16 tlv_type, char *string)
 }
 
 
-
-
 #if 0
 
 /* Now obsolete code for handling commands not yet implemented the new way */
 
+/*
+ * Some of this code assumed that the manager structure contains two added
+ * fields:
+ *	u32 link_subscriptions;
+ *	struct list_head link_subscribers;
+ * which are currently not present.  These fields may need to be re-introduced
+ * if and when support for link subscriptions is added.
+ */
+
+void tipc_cfg_link_event(u32 addr, char *name, int up)
+{
+	/* TIPC DOESN'T HANDLE LINK EVENT SUBSCRIPTIONS AT THE MOMENT */
+}
+
 int tipc_cfg_cmd(const struct tipc_cmd_msg * msg,
 		 char *data,
 		 u32 sz,
@@ -667,9 +670,6 @@ int tipc_cfg_init(void)
 	struct tipc_name_seq seq;
 	int res;
 
-	memset(&mng, 0, sizeof(mng));
-	INIT_LIST_HEAD(&mng.link_subscribers);
-
 	res = tipc_attach(&mng.user_ref, NULL, NULL);
 	if (res)
 		goto failed;