There is need to get the selftest device (sobj->type == TYPE_IDEV) in multiple places, so have a helper to for it.
Signed-off-by: Yi Liu yi.l.liu@intel.com --- drivers/iommu/iommufd/selftest.c | 32 +++++++++++++++++++++----------- 1 file changed, 21 insertions(+), 11 deletions(-)
diff --git a/drivers/iommu/iommufd/selftest.c b/drivers/iommu/iommufd/selftest.c index 7fd8dc5a667f..b7e0cbb46f9f 100644 --- a/drivers/iommu/iommufd/selftest.c +++ b/drivers/iommu/iommufd/selftest.c @@ -831,29 +831,39 @@ static int iommufd_test_mock_domain(struct iommufd_ucmd *ucmd, return rc; }
-/* Replace the mock domain with a manually allocated hw_pagetable */ -static int iommufd_test_mock_domain_replace(struct iommufd_ucmd *ucmd, - unsigned int device_id, u32 pt_id, - struct iommu_test_cmd *cmd) +static struct selftest_obj * +iommufd_test_get_self_test_device(struct iommufd_ctx *ictx, u32 id) { struct iommufd_object *dev_obj; struct selftest_obj *sobj; - int rc;
/* * Prefer to use the OBJ_SELFTEST because the destroy_rwsem will ensure * it doesn't race with detach, which is not allowed. */ - dev_obj = - iommufd_get_object(ucmd->ictx, device_id, IOMMUFD_OBJ_SELFTEST); + dev_obj = iommufd_get_object(ictx, id, IOMMUFD_OBJ_SELFTEST); if (IS_ERR(dev_obj)) - return PTR_ERR(dev_obj); + return ERR_CAST(dev_obj);
sobj = container_of(dev_obj, struct selftest_obj, obj); if (sobj->type != TYPE_IDEV) { - rc = -EINVAL; - goto out_dev_obj; + iommufd_put_object(ictx, dev_obj); + return ERR_PTR(-EINVAL); } + return sobj; +} + +/* Replace the mock domain with a manually allocated hw_pagetable */ +static int iommufd_test_mock_domain_replace(struct iommufd_ucmd *ucmd, + unsigned int device_id, u32 pt_id, + struct iommu_test_cmd *cmd) +{ + struct selftest_obj *sobj; + int rc; + + sobj = iommufd_test_get_self_test_device(ucmd->ictx, device_id); + if (IS_ERR(sobj)) + return PTR_ERR(sobj);
rc = iommufd_device_replace(sobj->idev.idev, &pt_id); if (rc) @@ -863,7 +873,7 @@ static int iommufd_test_mock_domain_replace(struct iommufd_ucmd *ucmd, rc = iommufd_ucmd_respond(ucmd, sizeof(*cmd));
out_dev_obj: - iommufd_put_object(ucmd->ictx, dev_obj); + iommufd_put_object(ucmd->ictx, &sobj->obj); return rc; }