> From: Jason Gunthorpe <jgg@xxxxxxxxxx> > Sent: Thursday, August 10, 2023 12:46 AM > > On Tue, Aug 08, 2023 at 08:35:10AM -0700, Yi Liu wrote: > > From: Nicolin Chen <nicolinc@xxxxxxxxxx> > > > > Add a mock_domain_hw_info function and an iommu_test_hw_info data > > structure. This allows to test the IOMMU_GET_HW_INFO ioctl passing > > the test_reg value for the mock_dev. > > > > Signed-off-by: Nicolin Chen <nicolinc@xxxxxxxxxx> > > Signed-off-by: Yi Liu <yi.l.liu@xxxxxxxxx> > > --- > > drivers/iommu/iommufd/iommufd_test.h | 9 +++++++ > > drivers/iommu/iommufd/selftest.c | 16 ++++++++++++ > > tools/testing/selftests/iommu/iommufd.c | 17 +++++++++++- > > tools/testing/selftests/iommu/iommufd_utils.h | 26 +++++++++++++++++++ > > 4 files changed, 67 insertions(+), 1 deletion(-) > > Don't forget to add it to fail_nth Sure. Btw. Would you share us the rule on determining whether an ioctl/path requires fail_nth case or not. Regards, Yi Liu