s1394_compare_swap
if (s1394_compare_swap(hal, target, tmp_cmd) != DDI_SUCCESS) {
if (s1394_compare_swap(to_hal, target, cmd) !=
ret = s1394_compare_swap(to_hal, target, cmd);
int s1394_compare_swap(s1394_hal_t *hal, s1394_target_t *target,