X25: Move interrupt flag to bitfield

[safe/jmp/linux-2.6] / net / tipc / bcast.c

diff --git a/net/tipc/bcast.c b/net/tipc/bcast.c
index 1ee6424..a008c66 100644 (file)
--- a/net/tipc/bcast.c
+++ b/net/tipc/bcast.c
@@ -882,3 +882,53 @@ void tipc_nmap_diff(struct tipc_node_map *nm_a, struct tipc_node_map *nm_b,
                }
        }
 }
+
+/**
+ * tipc_port_list_add - add a port to a port list, ensuring no duplicates
+ */
+
+void tipc_port_list_add(struct port_list *pl_ptr, u32 port)
+{
+       struct port_list *item = pl_ptr;
+       int i;
+       int item_sz = PLSIZE;
+       int cnt = pl_ptr->count;
+
+       for (; ; cnt -= item_sz, item = item->next) {
+               if (cnt < PLSIZE)
+                       item_sz = cnt;
+               for (i = 0; i < item_sz; i++)
+                       if (item->ports[i] == port)
+                               return;
+               if (i < PLSIZE) {
+                       item->ports[i] = port;
+                       pl_ptr->count++;
+                       return;
+               }
+               if (!item->next) {
+                       item->next = kmalloc(sizeof(*item), GFP_ATOMIC);
+                       if (!item->next) {
+                               warn("Incomplete multicast delivery, no memory\n");
+                               return;
+                       }
+                       item->next->next = NULL;
+               }
+       }
+}
+
+/**
+ * tipc_port_list_free - free dynamically created entries in port_list chain
+ *
+ */
+
+void tipc_port_list_free(struct port_list *pl_ptr)
+{
+       struct port_list *item;
+       struct port_list *next;
+
+       for (item = pl_ptr->next; item; item = next) {
+               next = item->next;
+               kfree(item);
+       }
+}
+