[PATCH v4 4/5] vfio/type1: Use iommu_aux_at(de)tach_group() APIs

[Lu Baolu]

Replace iommu_aux_at(de)tach_device() with iommu_at(de)tach_subdev_group().

Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
---
 drivers/vfio/vfio_iommu_type1.c | 43 +++++----------------------------
 1 file changed, 6 insertions(+), 37 deletions(-)

diff --git a/drivers/vfio/vfio_iommu_type1.c b/drivers/vfio/vfio_iommu_type1.c
index 5e556ac9102a..8d5eb7ce0986 100644
--- a/drivers/vfio/vfio_iommu_type1.c
+++ b/drivers/vfio/vfio_iommu_type1.c
@@ -1627,45 +1627,13 @@ static struct device *vfio_mdev_get_iommu_device(struct 
device *dev)
        return NULL;
 }
 
-static int vfio_mdev_attach_domain(struct device *dev, void *data)
-{
-       struct iommu_domain *domain = data;
-       struct device *iommu_device;
-
-       iommu_device = vfio_mdev_get_iommu_device(dev);
-       if (iommu_device) {
-               if (iommu_dev_feature_enabled(iommu_device, IOMMU_DEV_FEAT_AUX))
-                       return iommu_aux_attach_device(domain, iommu_device);
-               else
-                       return iommu_attach_device(domain, iommu_device);
-       }
-
-       return -EINVAL;
-}
-
-static int vfio_mdev_detach_domain(struct device *dev, void *data)
-{
-       struct iommu_domain *domain = data;
-       struct device *iommu_device;
-
-       iommu_device = vfio_mdev_get_iommu_device(dev);
-       if (iommu_device) {
-               if (iommu_dev_feature_enabled(iommu_device, IOMMU_DEV_FEAT_AUX))
-                       iommu_aux_detach_device(domain, iommu_device);
-               else
-                       iommu_detach_device(domain, iommu_device);
-       }
-
-       return 0;
-}
-
 static int vfio_iommu_attach_group(struct vfio_domain *domain,
                                   struct vfio_group *group)
 {
        if (group->mdev_group)
-               return iommu_group_for_each_dev(group->iommu_group,
-                                               domain->domain,
-                                               vfio_mdev_attach_domain);
+               return iommu_attach_subdev_group(domain->domain,
+                                                group->iommu_group,
+                                                vfio_mdev_get_iommu_device);
        else
                return iommu_attach_group(domain->domain, group->iommu_group);
 }
@@ -1674,8 +1642,9 @@ static void vfio_iommu_detach_group(struct vfio_domain 
*domain,
                                    struct vfio_group *group)
 {
        if (group->mdev_group)
-               iommu_group_for_each_dev(group->iommu_group, domain->domain,
-                                        vfio_mdev_detach_domain);
+               iommu_detach_subdev_group(domain->domain,
+                                         group->iommu_group,
+                                         vfio_mdev_get_iommu_device);
        else
                iommu_detach_group(domain->domain, group->iommu_group);
 }
-- 
2.17.1

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