ND_REGION_CXL
set_bit(ND_REGION_CXL, &ndr_desc.flags);
if (!test_bit(ND_REGION_CXL, &ndr_desc->flags))
if (!test_bit(ND_REGION_CXL, &nd_region->flags))
if (test_bit(ND_REGION_CXL, &ndr_desc->flags)) {