On Mon, Jun 10, 2024 at 04:55:35PM +0800, Lu Baolu wrote: > Commit <17de3f5fdd35> ("iommu: Retire bus ops") removes iommu ops from > bus. The iommu subsystem no longer relies on bus for operations. So the > bus parameter in iommu_domain_alloc() is no longer relevant. > > Add a new interface named iommu_paging_domain_alloc(), which explicitly > indicates the allocation of a paging domain for DMA managed by a kernel > driver. The new interface takes a device pointer as its parameter, that > better aligns with the current iommu subsystem. > > Signed-off-by: Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx> > --- > include/linux/iommu.h | 6 ++++++ > drivers/iommu/iommu.c | 20 ++++++++++++++++++++ > 2 files changed, 26 insertions(+) Reviewed-by: Jason Gunthorpe <jgg@xxxxxxxxxx> Jason