iommu/core: Convert iommu_found to iommu_present
With per-bus iommu_ops the iommu_found function needs to
work on a bus_type too. This patch adds a bus_type parameter
to that function and converts all call-places.
The function is also renamed to iommu_present because the
function now checks if an iommu is present for a given bus
and does not check for a global iommu anymore.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index 46e1c24..ad8ce1a 100644
--- a/drivers/iommu/iommu.c
+++ b/drivers/iommu/iommu.c
@@ -66,11 +66,14 @@
}
EXPORT_SYMBOL_GPL(bus_set_iommu);
-bool iommu_found(void)
+bool iommu_present(struct bus_type *bus)
{
- return iommu_ops != NULL;
+ if (bus->iommu_ops != NULL)
+ return true;
+ else
+ return iommu_ops != NULL;
}
-EXPORT_SYMBOL_GPL(iommu_found);
+EXPORT_SYMBOL_GPL(iommu_present);
struct iommu_domain *iommu_domain_alloc(struct bus_type *bus)
{