ktime_dt 96 drivers/iio/proximity/srf04.c ktime_t ktime_dt; ktime_dt 133 drivers/iio/proximity/srf04.c ktime_dt = ktime_sub(data->ts_falling, data->ts_rising); ktime_dt 137 drivers/iio/proximity/srf04.c dt_ns = ktime_to_ns(ktime_dt);