On Sat, Nov 4, 2023 at 1:18 AM Cindy Lu <lulu@xxxxxxxxxx> wrote:
>
> Expose the function iommu_device_use_default_domain() and
> iommu_device_unuse_default_domain()，
> While vdpa bind the iommufd device and detach the iommu device,
> vdpa need to call the function
> iommu_device_unuse_default_domain() to release the owner
>
> Signed-off-by: Cindy Lu <lulu@xxxxxxxxxx>
This is the end of the series, who is the user then?
Thanks
> ---
> drivers/iommu/iommu.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
> index 3bfc56df4f78..987cbf8c9a87 100644
> --- a/drivers/iommu/iommu.c
> +++ b/drivers/iommu/iommu.c
> @@ -3164,6 +3164,7 @@ int iommu_device_use_default_domain(struct device *dev)
>
> return ret;
> }
> +EXPORT_SYMBOL_GPL(iommu_device_use_default_domain);
>
> /**
> * iommu_device_unuse_default_domain() - Device driver stops handling device
> @@ -3187,6 +3188,7 @@ void iommu_device_unuse_default_domain(struct device *dev)
> mutex_unlock(&group->mutex);
> iommu_group_put(group);
> }
> +EXPORT_SYMBOL_GPL(iommu_device_unuse_default_domain);
>
> static int __iommu_group_alloc_blocking_domain(struct iommu_group *group)
> {
> --
> 2.34.3
>
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