noiommu device only has auto domain, does not need to attach to other ioas.

Signed-off-by: Jacob Pan <jacob.pan@linux.microsoft.com>
---
 drivers/vfio/vfio_main.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/vfio/vfio_main.c b/drivers/vfio/vfio_main.c
index 38c8e9350a60..805d30b0b82f 100644
--- a/drivers/vfio/vfio_main.c
+++ b/drivers/vfio/vfio_main.c
@@ -317,9 +317,7 @@ static int __vfio_register_dev(struct vfio_device *device,
 
 	if (WARN_ON(IS_ENABLED(CONFIG_IOMMUFD) &&
 		    (!device->ops->bind_iommufd ||
-		     !device->ops->unbind_iommufd ||
-		     !device->ops->attach_ioas ||
-		     !device->ops->detach_ioas)))
+		     !device->ops->unbind_iommufd)))
 		return -EINVAL;
 
 	/*
-- 
2.34.1