cap_ndoms
cap_ndoms(iommu->cap) - 1, GFP_KERNEL);
if (did_old < cap_ndoms(iommu->cap)) {
if (did >= 0 && did < cap_ndoms(iommu->cap))
return sysfs_emit(buf, "%ld\n", cap_ndoms(iommu->cap));
for (id = 0; id < cap_ndoms(iommu->cap); id++)