NDEBUG_MAIN
dsprintk(NDEBUG_MAIN, instance, "main: dequeued %p\n", cmd);
dsprintk(NDEBUG_MAIN, instance, "main: select complete\n");
dsprintk(NDEBUG_MAIN | NDEBUG_QUEUES, instance,
dsprintk(NDEBUG_MAIN, instance, "main: performing information transfer\n");