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| author |  Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| 2023-03-13 19:29:16 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| 2023-03-23 13:21:54 +0100 |
| commit | b18d0a0f92a8fe9e56d812808184c8c4b9f18f92 (patch) | |
| tree | cf261d8f973b64816b8edeb67f3e3dd376491523 /drivers | |
| parent | ARM/dma-mapping: const a pointer to bus_type in arm_iommu_create_mapping() (diff) | |
| download | linux-b18d0a0f92a8fe9e56d812808184c8c4b9f18f92.tar.gz linux-b18d0a0f92a8fe9e56d812808184c8c4b9f18f92.tar.bz2 linux-b18d0a0f92a8fe9e56d812808184c8c4b9f18f92.zip | |
iommu: make the pointer to struct bus_type constant
A number of iommu functions take a struct bus_type * and never modify
the data passed in, so make them all const * as that is what the driver
core is expecting to have passed into as well.
This is a step toward making all struct bus_type pointers constant in
the kernel.
Cc: Will Deacon <will@kernel.org>
Cc: Robin Murphy <robin.murphy@arm.com>
Cc: iommu@lists.linux.dev
Acked-by: Joerg Roedel <jroedel@suse.de>
Link: https://lore.kernel.org/r/20230313182918.1312597-34-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/iommu/iommu.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c index 10db680acaed..0b5e181998c9 100644 --- a/drivers/iommu/iommu.c +++ b/drivers/iommu/iommu.c @@ -89,7 +89,7 @@ static int iommu_bus_notifier(struct notifier_block *nb, unsigned long action, void *data); static int iommu_alloc_default_domain(struct iommu_group *group, struct device *dev); -static struct iommu_domain *__iommu_domain_alloc(struct bus_type *bus, +static struct iommu_domain *__iommu_domain_alloc(const struct bus_type *bus, unsigned type); static int __iommu_attach_device(struct iommu_domain *domain, struct device *dev); @@ -1631,7 +1631,7 @@ static int iommu_get_def_domain_type(struct device *dev) return 0; } -static int iommu_group_alloc_default_domain(struct bus_type *bus, +static int iommu_group_alloc_default_domain(const struct bus_type *bus, struct iommu_group *group, unsigned int type) { @@ -1777,7 +1777,7 @@ static int probe_get_default_domain_type(struct device *dev, void *data) return 0; } -static void probe_alloc_default_domain(struct bus_type *bus, +static void probe_alloc_default_domain(const struct bus_type *bus, struct iommu_group *group) { struct __group_domain_type gtype; @@ -1832,7 +1832,7 @@ static int iommu_group_create_direct_mappings(struct iommu_group *group) iommu_do_create_direct_mappings); } -int bus_iommu_probe(struct bus_type *bus) +int bus_iommu_probe(const struct bus_type *bus) { struct iommu_group *group, *next; LIST_HEAD(group_list); @@ -1876,7 +1876,7 @@ int bus_iommu_probe(struct bus_type *bus) return ret; } -bool iommu_present(struct bus_type *bus) +bool iommu_present(const struct bus_type *bus) { return bus->iommu_ops != NULL; } @@ -1951,7 +1951,7 @@ void iommu_set_fault_handler(struct iommu_domain *domain, } EXPORT_SYMBOL_GPL(iommu_set_fault_handler); -static struct iommu_domain *__iommu_domain_alloc(struct bus_type *bus, +static struct iommu_domain *__iommu_domain_alloc(const struct bus_type *bus, unsigned type) { struct iommu_domain *domain; @@ -1976,7 +1976,7 @@ static struct iommu_domain *__iommu_domain_alloc(struct bus_type *bus, return domain; } -struct iommu_domain *iommu_domain_alloc(struct bus_type *bus) +struct iommu_domain *iommu_domain_alloc(const struct bus_type *bus) { return __iommu_domain_alloc(bus, IOMMU_DOMAIN_UNMANAGED); } |