[PATCH 15/15] iommu: Remove domain_init and domain_free iommu_ops

Joerg Roedel
2015-01-26T23:52:47Z

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.

Signed-off-by: Joerg Roedel <jroedel@suse.de>
---
drivers/iommu/iommu.c | 30 ++----------------------------
include/linux/iommu.h | 3 ---
2 files changed, 2 insertions(+), 31 deletions(-)

diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index ab24d77..e66cc08 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);

diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index 0b67f65..2951dca 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -62,7 +62,6 @@ enum iommu_domain_type {
struct iommu_domain {
enum iommu_domain_type type;
const struct iommu_ops *ops;
- void *priv;
iommu_fault_handler_t handler;
void *handler_token;
struct iommu_domain_geometry geometry;
@@ -122,8 +121,6 @@ enum iommu_attr {
*/
struct iommu_ops {
bool (*capable)(enum iommu_cap);
- int (*domain_init)(struct iommu_domain *domain);
- void (*domain_destroy)(struct iommu_domain *domain);

/* Domain allocation and freeing by the iommu driver */
struct iommu_domain *(*domain_alloc)(enum iommu_domain_type);
--
1.8.4.5