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iommu: constify fwnode in iommu_ops_from_fwnode()

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Make pointer to fwnode_handle a pointer to const for code safety.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240216144027.185959-3-krzysztof.kozlowski@linaro.org
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Krzysztof Kozlowski 2024-02-16 15:40:26 +01:00 committed by Joerg Roedel
parent b42a905b6a
commit 5896e6e39b
2 changed files with 3 additions and 3 deletions
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2
drivers/iommu/iommu.c
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@ -2774,7 +2774,7 @@ bool iommu_default_passthrough(void)
} }
EXPORT_SYMBOL_GPL(iommu_default_passthrough); EXPORT_SYMBOL_GPL(iommu_default_passthrough);
const struct iommu_ops *iommu_ops_from_fwnode(struct fwnode_handle *fwnode) const struct iommu_ops *iommu_ops_from_fwnode(const struct fwnode_handle *fwnode)
{ {
const struct iommu_ops *ops = NULL; const struct iommu_ops *ops = NULL;
struct iommu_device *iommu; struct iommu_device *iommu;

4
include/linux/iommu.h
View File

@ -986,7 +986,7 @@ int iommu_fwspec_init(struct device *dev, struct fwnode_handle *iommu_fwnode,
const struct iommu_ops *ops); const struct iommu_ops *ops);
void iommu_fwspec_free(struct device *dev); void iommu_fwspec_free(struct device *dev);
int iommu_fwspec_add_ids(struct device *dev, const u32 *ids, int num_ids); int iommu_fwspec_add_ids(struct device *dev, const u32 *ids, int num_ids);
const struct iommu_ops *iommu_ops_from_fwnode(struct fwnode_handle *fwnode); const struct iommu_ops *iommu_ops_from_fwnode(const struct fwnode_handle *fwnode);
static inline struct iommu_fwspec *dev_iommu_fwspec_get(struct device *dev) static inline struct iommu_fwspec *dev_iommu_fwspec_get(struct device *dev)
{ {
@ -1309,7 +1309,7 @@ static inline int iommu_fwspec_add_ids(struct device *dev, u32 *ids,
} }
static inline static inline
const struct iommu_ops *iommu_ops_from_fwnode(struct fwnode_handle *fwnode) const struct iommu_ops *iommu_ops_from_fwnode(const struct fwnode_handle *fwnode)
{ {
return NULL; return NULL;
} }