tipc: eliminate function tipc_link_activate()

The function tipc_link_activate() is redundant, since it mostly performs
settings that have already been done in a preceding tipc_link_reset().

There are three exceptions to this:
- The actual state change to TIPC_LINK_WORKING. This should anyway be done
  in the FSM, and not in a separate function.
- Registration of the link with the bearer. This should be done by the
  node, since we don't want the link to have any knowledge about its
  specific bearer.
- Call to tipc_node_link_up() for user access registration. With the new
  role distribution between link aggregation and link level this becomes
  the wrong call order; tipc_node_link_up() should instead be called
  directly as a result of a TIPC_LINK_UP event, hence by the node itself.

This commit implements those changes.

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>

1 files changed, 4 insertions, 2 deletions

diff --git a/net/tipc/node.c b/net/tipc/node.c
index e92f84afbf95..558df25a7fc6 100644
--- a/net/tipc/node.c
+++ b/net/tipc/node.c
@@ -295,11 +295,13 @@ void tipc_node_link_up(struct tipc_node *n, int bearer_id)
         n->action_flags |= TIPC_NOTIFY_LINK_UP;
         n->link_id = l->peer_bearer_id << 16 | l->bearer_id;
 
+        tipc_bearer_add_dest(n->net, bearer_id, n->addr);
+
         pr_debug("Established link <%s> on network plane %c\n",
                  l->name, l->net_plane);
 
         /* No active links ? => take both active slots */
-        if (*slot0 < 0) {
+        if (!tipc_node_is_up(n)) {
                 *slot0 = bearer_id;
                 *slot1 = bearer_id;
                 node_established_contact(n);
@@ -896,7 +898,7 @@ void tipc_rcv(struct net *net, struct sk_buff *skb, struct tipc_bearer *b)
         rc = tipc_link_rcv(l, skb, &xmitq);
 
         if (unlikely(rc & TIPC_LINK_UP_EVT))
-                tipc_link_activate(l);
+                tipc_node_link_up(n, bearer_id);
         if (unlikely(rc & TIPC_LINK_DOWN_EVT))
                 tipc_link_reset(l);
         skb = NULL;