[PATCH 2/2] iommu: Implement a dummy bus_set_iommu()

[Thierry Reding]

From: Thierry Reding <treding@xxxxxxxxxx>

This allows IOMMU drivers to compile even if IOMMU_API is not selected
and helps improve compile coverage.

Signed-off-by: Thierry Reding <treding@xxxxxxxxxx>
---
 include/linux/iommu.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index 0b5222c7ff97..415608ea2999 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -242,6 +242,12 @@ static inline int report_iommu_fault(struct iommu_domain *domain,
 
 #else /* CONFIG_IOMMU_API */
 
+static inline int bus_set_iommu(struct bus_type *bus,
+				const struct iommu_ops *ops)
+{
+	return -ENOSYS;
+}
+
 static inline bool iommu_present(struct bus_type *bus)
 {
 	return false;
-- 
2.0.3

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