On Fri, Aug 26, 2022 at 08:11:33PM +0800, Lu Baolu wrote: > The Intel IOMMU hardwares support blocking DMA transactions by clearing > the translation table entries. This implements a real blocking domain to > avoid using an empty UNMANAGED domain. The detach_dev callback of the > domain ops is not used in any path. Remove it to avoid dead code as well. > > Signed-off-by: Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx> > Tested-by: Tony Zhu <tony.zhu@xxxxxxxxx> > --- > drivers/iommu/intel/iommu.c | 25 ++++++++++++++++++------- > 1 file changed, 18 insertions(+), 7 deletions(-) At this point I'd suggest to make a little series that does all the blocking domain stuff in one shot The removal of detach_dev callbacks is pretty nice for clarity. Jason