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authorJoerg Roedel <joerg.roedel@amd.com>2011-09-06 18:58:54 +0200
committerJoerg Roedel <joerg.roedel@amd.com>2011-10-21 14:37:23 +0200
commit94441c3bd99287b9d84f148a08cc9a44675ec749 (patch)
treeedf4c7b2b9a78e30cb99f25cc5ac9ec0ec2f74bb /drivers
parent85eebbc5e4633e6eee10bdddd00d175daadd5841 (diff)
iommu/core: Remove global iommu_ops and register_iommu
With all IOMMU drivers being converted to bus_set_iommu the global iommu_ops are no longer required. The same is true for the deprecated register_iommu function. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/iommu/iommu.c27
1 files changed, 4 insertions, 23 deletions
diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index 1575aaa36c94..64419c88727e 100644
--- a/drivers/iommu/iommu.c
+++ b/drivers/iommu/iommu.c
@@ -25,16 +25,6 @@
#include <linux/errno.h>
#include <linux/iommu.h>
-static struct iommu_ops *iommu_ops;
-
-void register_iommu(struct iommu_ops *ops)
-{
- if (iommu_ops)
- BUG();
-
- iommu_ops = ops;
-}
-
static void iommu_bus_init(struct bus_type *bus, struct iommu_ops *ops)
{
}
@@ -68,34 +58,25 @@ EXPORT_SYMBOL_GPL(bus_set_iommu);
bool iommu_present(struct bus_type *bus)
{
- if (bus->iommu_ops != NULL)
- return true;
- else
- return iommu_ops != NULL;
+ return bus->iommu_ops != NULL;
}
EXPORT_SYMBOL_GPL(iommu_present);
struct iommu_domain *iommu_domain_alloc(struct bus_type *bus)
{
struct iommu_domain *domain;
- struct iommu_ops *ops;
int ret;
- if (bus->iommu_ops)
- ops = bus->iommu_ops;
- else
- ops = iommu_ops;
-
- if (ops == NULL)
+ if (bus == NULL || bus->iommu_ops == NULL)
return NULL;
domain = kmalloc(sizeof(*domain), GFP_KERNEL);
if (!domain)
return NULL;
- domain->ops = ops;
+ domain->ops = bus->iommu_ops;
- ret = iommu_ops->domain_init(domain);
+ ret = domain->ops->domain_init(domain);
if (ret)
goto out_free;