> From: Christoph Hellwig
> Sent: Thursday, April 7, 2022 2:26 PM
>
> All drivers that implement get_resv_regions just use
> generic_put_resv_regions to implement the put side. Remove the
> indirections and document the allocations constraints.
>
Looks no document after removal:
> void iommu_put_resv_regions(struct device *dev, struct list_head *list)
> -{
> - const struct iommu_ops *ops = dev_iommu_ops(dev);
> -
> - if (ops->put_resv_regions)
> - ops->put_resv_regions(dev, list);
> -}
> -
> -/**
> - * generic_iommu_put_resv_regions - Reserved region driver helper
> - * @dev: device for which to free reserved regions
> - * @list: reserved region list for device
> - *
> - * IOMMU drivers can use this to implement their .put_resv_regions()
> callback
> - * for simple reservations. Memory allocated for each reserved region will
> be
> - * freed. If an IOMMU driver allocates additional resources per region, it is
> - * going to have to implement a custom callback.
> - */
> -void generic_iommu_put_resv_regions(struct device *dev, struct list_head
> *list)
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