QFQ_MAX_INDEX
#define QFQ_MIN_SLOT_SHIFT (FRAC_BITS + QFQ_MTU_SHIFT - QFQ_MAX_INDEX)
struct qfq_group groups[QFQ_MAX_INDEX + 1]; /* The groups. */
for (i = 0; i <= QFQ_MAX_INDEX; i++) {
(QFQ_MAX_INDEX - i);
for (i = 0; i < QFQ_MAX_INDEX + 1; i++) {