IDX_PER_GROUP
#define NR_MSI_BITS (IDX_PER_GROUP * IRQS_PER_IDX * NR_HW_IRQS)
for_each_set_bit(msir_idx, &grp_pending, IDX_PER_GROUP) {
for (int msi_idx = 0; msi_idx < IDX_PER_GROUP; msi_idx++)