rvt_qp_iter_next
if (rvt_qp_iter_next(iter)) {
if (rvt_qp_iter_next(iter)) {
EXPORT_SYMBOL(rvt_qp_iter_next);
ret = rvt_qp_iter_next(&i);
int rvt_qp_iter_next(struct rvt_qp_iter *iter);