ecc_disable_nowait
bus_func_register(BF_TYPE_ERRDIS, (busfunc_t)ecc_disable_nowait, ecc_p);
(busfunc_t)ecc_disable_nowait, ecc_p);
(void) ecc_disable_nowait(ecc_p);
extern uint_t ecc_disable_nowait(ecc_t *ecc_p);