NSEC_PER_MSEC
return (ktime_divns(kt, NSEC_PER_MSEC));
return (ms * NSEC_PER_MSEC);
return (ktime_add_ns(kt, ms * NSEC_PER_MSEC));
(delta.tv_nsec / NSEC_PER_MSEC);
return (uint64_t)(ts->tv_sec * (1000)) + (ts->tv_nsec / NSEC_PER_MSEC);