iommu: Constify struct iommu_ops

This structure is read-only data and should never be modified.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Joerg Roedel <jroedel@suse.de>

2 files changed, 3 insertions, 3 deletions

diff --git a/include/linux/device.h b/include/linux/device.h
index af424acd393d..75f5bcb8930b 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -124,7 +124,7 @@ struct bus_type {
 
         const struct dev_pm_ops *pm;
 
-        struct iommu_ops *iommu_ops;
+        const struct iommu_ops *iommu_ops;
 
         struct subsys_private *p;
         struct lock_class_key lock_key;
diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index 7fd16e3d1f25..c7097d7f024c 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -50,7 +50,7 @@ struct iommu_domain_geometry {
 };
 
 struct iommu_domain {
-        struct iommu_ops *ops;
+        const struct iommu_ops *ops;
         void *priv;
         iommu_fault_handler_t handler;
         void *handler_token;
@@ -140,7 +140,7 @@ struct iommu_ops {
 #define IOMMU_GROUP_NOTIFY_UNBIND_DRIVER        5 /* Pre Driver unbind */
 #define IOMMU_GROUP_NOTIFY_UNBOUND_DRIVER       6 /* Post Driver unbind */
 
-extern int bus_set_iommu(struct bus_type *bus, struct iommu_ops *ops);
+extern int bus_set_iommu(struct bus_type *bus, const struct iommu_ops *ops);
 extern bool iommu_present(struct bus_type *bus);
 extern struct iommu_domain *iommu_domain_alloc(struct bus_type *bus);
 extern struct iommu_group *iommu_group_get_by_id(int id);