* Iterate through all ports, all codes to
         * find hardware that is in our known list.
         */
-       for (i = 0;i < sizeof(config_ports)/sizeof(int);i++)
-       {
+       for (i = 0; i < ARRAY_SIZE(config_ports); i++) {
                if (!request_region(config_ports[i], 2, DRIVER_NAME))
                        continue;
 
-               for (j = 0;j < sizeof(unlock_codes)/sizeof(int);j++)
-               {
+               for (j = 0; j < ARRAY_SIZE(unlock_codes); j++) {
                        id = 0xFFFF;
 
                        host->config = config_ports[i];
 
                        wbsd_lock_config(host);
 
-                       for (k = 0;k < sizeof(valid_ids)/sizeof(int);k++)
-                       {
+                       for (k = 0; k < ARRAY_SIZE(valid_ids); k++) {
                                if (id == valid_ids[k])
                                {
                                        host->chip_id = id;