iommu: Remove domain_init and domain_free iommu_ops

All drivers have been converted to the new domain_alloc and
domain_free iommu-ops. So remove the old ones and get rid of
iommu_domain->priv too, as this is no longer needed when the
struct iommu_domain is embedded in the private structures of
the iommu drivers.

Tested-by: Thierry Reding <treding@nvidia.com>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Alex Williamson <alex.williamson@redhat.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>

1 files changed, 2 insertions, 28 deletions

diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index 656b9499e748..d4f527e56679 100644
--- a/drivers/iommu/iommu.c
+++ b/drivers/iommu/iommu.c
@@ -900,51 +900,25 @@ EXPORT_SYMBOL_GPL(iommu_set_fault_handler);
 
 struct iommu_domain *iommu_domain_alloc(struct bus_type *bus)
 {
-	const struct iommu_ops *ops;
 	struct iommu_domain *domain;
 
 	if (bus == NULL || bus->iommu_ops == NULL)
 		return NULL;
 
-	ops = bus->iommu_ops;
-
-	if (ops->domain_alloc)
-		domain = ops->domain_alloc(IOMMU_DOMAIN_UNMANAGED);
-	else
-		domain = kzalloc(sizeof(*domain), GFP_KERNEL);
-
+	domain = bus->iommu_ops->domain_alloc(IOMMU_DOMAIN_UNMANAGED);
 	if (!domain)
 		return NULL;
 
 	domain->ops  = bus->iommu_ops;
 	domain->type = IOMMU_DOMAIN_UNMANAGED;
 
-	if (ops->domain_init && domain->ops->domain_init(domain))
-		goto out_free;
-
 	return domain;
-
-out_free:
-	if (ops->domain_free)
-		ops->domain_free(domain);
-	else
-		kfree(domain);
-
-	return NULL;
 }
 EXPORT_SYMBOL_GPL(iommu_domain_alloc);
 
 void iommu_domain_free(struct iommu_domain *domain)
 {
-	const struct iommu_ops *ops = domain->ops;
-
-	if (likely(ops->domain_destroy != NULL))
-		ops->domain_destroy(domain);
-
-	if (ops->domain_free)
-		ops->domain_free(domain);
-	else
-		kfree(domain);
+	domain->ops->domain_free(domain);
 }
 EXPORT_SYMBOL_GPL(iommu_domain_free);