int addr_to_string(char *buff, uint8_t *addr)
 {
-       return sprintf(buff, MAC_FMT,
-                      addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]);
+       return sprintf(buff, "%pM", addr);
 }
 
 /* returns 1 if they are the same originator */
 
        while (hash_iterate(hna_local_hash, &hashit)) {
                hna_local_entry = hashit.bucket->data;
 
-               pos += snprintf(buff + pos, 22, " * " MAC_FMT "\n",
-                               hna_local_entry->addr[0],
-                               hna_local_entry->addr[1],
-                               hna_local_entry->addr[2],
-                               hna_local_entry->addr[3],
-                               hna_local_entry->addr[4],
-                               hna_local_entry->addr[5]);
+               pos += snprintf(buff + pos, 22, " * %pM\n",
+                               hna_local_entry->addr);
        }
 
        spin_unlock_irqrestore(&hna_local_hash_lock, flags);
                hna_global_entry = hashit.bucket->data;
 
                pos += snprintf(buff + pos, 44,
-                               " * " MAC_FMT " via " MAC_FMT "\n",
-                               hna_global_entry->addr[0],
-                               hna_global_entry->addr[1],
-                               hna_global_entry->addr[2],
-                               hna_global_entry->addr[3],
-                               hna_global_entry->addr[4],
-                               hna_global_entry->addr[5],
-                               hna_global_entry->orig_node->orig[0],
-                               hna_global_entry->orig_node->orig[1],
-                               hna_global_entry->orig_node->orig[2],
-                               hna_global_entry->orig_node->orig[3],
-                               hna_global_entry->orig_node->orig[4],
-                               hna_global_entry->orig_node->orig[5]);
+                               " * %pM via %pM\n", hna_global_entry->addr,
+                               hna_global_entry->orig_node->orig);
        }
 
        spin_unlock_irqrestore(&hna_global_hash_lock, flags);