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iommu: constify pointer to bus_type

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

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>
Link: https://lore.kernel.org/r/20240216144027.185959-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Krzysztof Kozlowski 2024-02-16 15:40:24 +01:00 committed by Joerg Roedel
parent 3dfa64aecb
commit e70e9ecd7c
2 changed files with 6 additions and 4 deletions
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5
drivers/iommu/iommu-priv.h
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@ -21,10 +21,11 @@ int iommu_group_replace_domain(struct iommu_group *group,
struct iommu_domain *new_domain); struct iommu_domain *new_domain);
int iommu_device_register_bus(struct iommu_device *iommu, int iommu_device_register_bus(struct iommu_device *iommu,
const struct iommu_ops *ops, struct bus_type *bus, const struct iommu_ops *ops,
const struct bus_type *bus,
struct notifier_block *nb); struct notifier_block *nb);
void iommu_device_unregister_bus(struct iommu_device *iommu, void iommu_device_unregister_bus(struct iommu_device *iommu,
struct bus_type *bus, const struct bus_type *bus,
struct notifier_block *nb); struct notifier_block *nb);
#endif /* __LINUX_IOMMU_PRIV_H */ #endif /* __LINUX_IOMMU_PRIV_H */

5
drivers/iommu/iommu.c
View File

@ -289,7 +289,7 @@ EXPORT_SYMBOL_GPL(iommu_device_unregister);
#if IS_ENABLED(CONFIG_IOMMUFD_TEST) #if IS_ENABLED(CONFIG_IOMMUFD_TEST)
void iommu_device_unregister_bus(struct iommu_device *iommu, void iommu_device_unregister_bus(struct iommu_device *iommu,
struct bus_type *bus, const struct bus_type *bus,
struct notifier_block *nb) struct notifier_block *nb)
{ {
bus_unregister_notifier(bus, nb); bus_unregister_notifier(bus, nb);
@ -303,7 +303,8 @@ EXPORT_SYMBOL_GPL(iommu_device_unregister_bus);
* some memory to hold a notifier_block. * some memory to hold a notifier_block.
*/ */
int iommu_device_register_bus(struct iommu_device *iommu, int iommu_device_register_bus(struct iommu_device *iommu,
const struct iommu_ops *ops, struct bus_type *bus, const struct iommu_ops *ops,
const struct bus_type *bus,
struct notifier_block *nb) struct notifier_block *nb)
{ {
int err; int err;