remove_ddw        857 arch/powerpc/platforms/pseries/iommu.c 			remove_ddw(pdn, true);
remove_ddw       1128 arch/powerpc/platforms/pseries/iommu.c 	remove_ddw(pdn, true);
remove_ddw       1290 arch/powerpc/platforms/pseries/iommu.c 		remove_ddw(np, false);