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authorRobin Murphy <Robin.Murphy@arm.com>2016-04-07 18:42:05 +0100
committerJoerg Roedel <jroedel@suse.de>2016-05-09 15:33:29 +0200
commit53c92d793395fdab9edbd2f79b084bb6b2e6ae79 (patch)
tree57a3dd2ec3c8c3b280adab8dbe400c8c19345b40 /include/linux/of_iommu.h
parent3c3e8943ac6f36ca5d18ca61b30634fb560b4ebb (diff)
iommu: of: enforce const-ness of struct iommu_ops
As a set of driver-provided callbacks and static data, there is no compelling reason for struct iommu_ops to be mutable in core code, so enforce const-ness throughout. Acked-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Robin Murphy <robin.murphy@arm.com> Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'include/linux/of_iommu.h')
-rw-r--r--include/linux/of_iommu.h8
1 files changed, 4 insertions, 4 deletions
diff --git a/include/linux/of_iommu.h b/include/linux/of_iommu.h
index ffbe4707d4aa..bd02b44902d0 100644
--- a/include/linux/of_iommu.h
+++ b/include/linux/of_iommu.h
@@ -12,7 +12,7 @@ extern int of_get_dma_window(struct device_node *dn, const char *prefix,
size_t *size);
extern void of_iommu_init(void);
-extern struct iommu_ops *of_iommu_configure(struct device *dev,
+extern const struct iommu_ops *of_iommu_configure(struct device *dev,
struct device_node *master_np);
#else
@@ -25,7 +25,7 @@ static inline int of_get_dma_window(struct device_node *dn, const char *prefix,
}
static inline void of_iommu_init(void) { }
-static inline struct iommu_ops *of_iommu_configure(struct device *dev,
+static inline const struct iommu_ops *of_iommu_configure(struct device *dev,
struct device_node *master_np)
{
return NULL;
@@ -33,8 +33,8 @@ static inline struct iommu_ops *of_iommu_configure(struct device *dev,
#endif /* CONFIG_OF_IOMMU */
-void of_iommu_set_ops(struct device_node *np, struct iommu_ops *ops);
-struct iommu_ops *of_iommu_get_ops(struct device_node *np);
+void of_iommu_set_ops(struct device_node *np, const struct iommu_ops *ops);
+const struct iommu_ops *of_iommu_get_ops(struct device_node *np);
extern struct of_device_id __iommu_of_table;