Use struct destination in find_route.

route.c

@@ -42,12 +42,11 @@ int route_timeout_delay = 50;
 int route_gc_delay = 95;
 
 struct route *
-find_route(const unsigned char *dest, struct neighbour *nexthop)
+find_route(struct destination *dest, struct neighbour *nexthop)
 {
     int i;
     for(i = 0; i < numroutes; i++) {
-        if(routes[i].nexthop == nexthop &&
-           memcmp(routes[i].dest->address, dest, 16) == 0)
+        if(routes[i].nexthop == nexthop && routes[i].dest == dest)
             return &routes[i];
     }
     return NULL;
@@ -306,7 +305,7 @@ update_route(const unsigned char *d, int seqno, int refmetric,
 
     metric = MIN(refmetric + neighbour_cost(nexthop), INFINITY);
 
-    route = find_route(d, nexthop);
+    route = find_route(dest, nexthop);
 
     if(route) {
         int oldseqno;

route.h

@@ -39,7 +39,7 @@ extern int kernel_metric;
 extern int route_timeout_delay;
 extern int route_gc_delay;
 
-struct route *find_route(const unsigned char *dest, struct neighbour *nexthop);
+struct route *find_route(struct destination *dest, struct neighbour *nexthop);
 struct route *find_installed_route(struct destination *dest);
 void flush_route(struct route *route);
 void flush_neighbour_routes(struct neighbour *neigh);