[TIPC]: First phase of assert() cleanup

This also contains enhancements to simplify comparisons in name table
publication removal algorithm and to simplify name table sanity checking
when shutting down TIPC.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Per Liden <per.liden@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/tipc/link.c

@@ -574,7 +574,6 @@ void tipc_link_wakeup_ports(struct link *l_ptr, int all)
 			break;
 		list_del_init(&p_ptr->wait_list);
 		p_ptr->congested_link = NULL;
-		assert(p_ptr->wakeup);
 		spin_lock_bh(p_ptr->publ.lock);
 		p_ptr->publ.congested = 0;
 		p_ptr->wakeup(&p_ptr->publ);
@@ -1246,8 +1245,6 @@ int tipc_link_send_sections_fast(struct port *sender,
 	int res;
 	u32 selector = msg_origport(hdr) & 1;
 
-	assert(destaddr != tipc_own_addr);
-
 again:
 	/*
 	 * Try building message using port's max_pkt hint.
@@ -2310,7 +2307,6 @@ void tipc_link_tunnel(struct link *l_ptr,
 	memcpy(buf->data + INT_H_SIZE, (unchar *)msg, length);
 	dbg("%c->%c:", l_ptr->b_ptr->net_plane, tunnel->b_ptr->net_plane);
 	msg_dbg(buf_msg(buf), ">SEND>");
-	assert(tunnel);
 	tipc_link_send_buf(tunnel, buf);
 }
 
@@ -2339,10 +2335,10 @@ void tipc_link_changeover(struct link *l_ptr)
 		 ORIGINAL_MSG, TIPC_OK, INT_H_SIZE, l_ptr->addr);
 	msg_set_bearer_id(&tunnel_hdr, l_ptr->peer_bearer_id);
 	msg_set_msgcnt(&tunnel_hdr, msgcount);
+
 	if (!l_ptr->first_out) {
 		struct sk_buff *buf;
 
-		assert(!msgcount);
 		buf = buf_acquire(INT_H_SIZE);
 		if (buf) {
 			memcpy(buf->data, (unchar *)&tunnel_hdr, INT_H_SIZE);
@@ -2356,6 +2352,7 @@ void tipc_link_changeover(struct link *l_ptr)
 		}
 		return;
 	}
+
 	while (crs) {
 		struct tipc_msg *msg = buf_msg(crs);
 
@@ -2455,11 +2452,15 @@ static int link_recv_changeover_msg(struct link **l_ptr,
 	u32 msg_count = msg_msgcnt(tunnel_msg);
 
 	dest_link = (*l_ptr)->owner->links[msg_bearer_id(tunnel_msg)];
-	assert(dest_link != *l_ptr);
 	if (!dest_link) {
 		msg_dbg(tunnel_msg, "NOLINK/<REC<");
 		goto exit;
 	}
+	if (dest_link == *l_ptr) {
+		err("Unexpected changeover message on link <%s>\n", 
+		    (*l_ptr)->name);
+		goto exit;
+	}
 	dbg("%c<-%c:", dest_link->b_ptr->net_plane,
 	    (*l_ptr)->b_ptr->net_plane);
 	*l_ptr = dest_link;

net/tipc/name_distr.c

@@ -174,7 +174,6 @@ void tipc_named_node_up(unsigned long node)
 	u32 rest;
 	u32 max_item_buf;
 
-	assert(in_own_cluster(node));
 	read_lock_bh(&tipc_nametbl_lock); 
 	max_item_buf = TIPC_MAX_USER_MSG_SIZE / ITEM_SIZE;
 	max_item_buf *= ITEM_SIZE;
@@ -221,15 +220,24 @@ void tipc_named_node_up(unsigned long node)
 static void node_is_down(struct publication *publ)
 {
 	struct publication *p;
+
         write_lock_bh(&tipc_nametbl_lock);
 	dbg("node_is_down: withdrawing %u, %u, %u\n", 
 	    publ->type, publ->lower, publ->upper);
         publ->key += 1222345;
 	p = tipc_nametbl_remove_publ(publ->type, publ->lower, 
 				     publ->node, publ->ref, publ->key);
-        assert(p == publ);
 	write_unlock_bh(&tipc_nametbl_lock);
-	kfree(publ);
+
+        if (p != publ) {
+		err("Unable to remove publication from failed node\n"
+		    "(type=%u, lower=%u, node=0x%x, ref=%u, key=%u)\n",
+		    publ->type, publ->lower, publ->node, publ->ref, publ->key);
+	}
+
+	if (p) {
+		kfree(p);
+	}
 }
 
 /**
@@ -275,6 +283,12 @@ void tipc_named_recv(struct sk_buff *buf)
 			if (publ) {
 				tipc_nodesub_unsubscribe(&publ->subscr);
         			kfree(publ);
+			} else {
+				err("Unable to remove publication by node 0x%x\n"
+				    "(type=%u, lower=%u, ref=%u, key=%u)\n",
+				    msg_orignode(msg),
+				    ntohl(item->type), ntohl(item->lower),
+				    ntohl(item->ref), ntohl(item->key));
 			}
 		} else {
 			warn("tipc_named_recv: unknown msg\n");