ri_entry
struct irte *ri_entry;
ri_entry = &iommu->ir_table->base[idx];
if (!ri_entry->present || ri_entry->p_pst)
idx, PCI_BUS_NUM(ri_entry->sid),
PCI_SLOT(ri_entry->sid), PCI_FUNC(ri_entry->sid),
ri_entry->dest_id, ri_entry->vector,
ri_entry->high, ri_entry->low);
struct xfs_rmap_intent *ra = ri_entry(a);
struct xfs_rmap_intent *rb = ri_entry(b);
struct xfs_rmap_intent *ri = ri_entry(item);
struct xfs_rmap_intent *ri = ri_entry(item);