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iommu: Make iommu-dma helpers private

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Most of iommu-dma's own internals were privatised a while ago, but
there are still a couple of DMA-domain-specific helpers provided
by the core code. These now definitely have no reason to be exposed
publicly, so move their declarations into the private header.

Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
This commit is contained in:
Robin Murphy 2026-09-28 12:51:47 +01:00 committed by Joerg Roedel
parent aa416fa911
commit 1ae140d0f2
3 changed files with 5 additions and 2 deletions
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1
drivers/iommu/dma-iommu.c
View File

@ -37,6 +37,7 @@
#include "dma-iommu.h"
#include "iommu-pages.h"
#include "iommu-priv.h"
struct iommu_dma_msi_page {
struct list_head list;

4
drivers/iommu/iommu-priv.h
View File

@ -30,6 +30,10 @@ static inline const struct iommu_ops *iommu_fwspec_ops(struct iommu_fwspec *fwsp
void iommu_fwspec_free(struct device *dev);
int iommu_deferred_attach(struct device *dev, struct iommu_domain *domain);
struct iommu_domain *iommu_get_dma_domain(struct device *dev);
int iommu_device_register_bus(struct iommu_device *iommu,
const struct iommu_ops *ops,
const struct bus_type *bus,

2
include/linux/iommu.h
View File

@ -898,7 +898,6 @@ int iommu_device_sysfs_add(struct iommu_device *iommu,
void iommu_device_sysfs_remove(struct iommu_device *iommu);
int iommu_device_link(struct iommu_device *iommu, struct device *link);
void iommu_device_unlink(struct iommu_device *iommu, struct device *link);
int iommu_deferred_attach(struct device *dev, struct iommu_domain *domain);
static inline struct iommu_device *dev_to_iommu_device(struct device *dev)
{
@ -943,7 +942,6 @@ extern void iommu_detach_device(struct iommu_domain *domain,
struct device *dev);
extern struct iommu_domain *iommu_get_domain_for_dev(struct device *dev);
struct iommu_domain *iommu_driver_get_domain_for_dev(struct device *dev);
extern struct iommu_domain *iommu_get_dma_domain(struct device *dev);
extern int iommu_map(struct iommu_domain *domain, unsigned long iova,
phys_addr_t paddr, size_t size, int prot, gfp_t gfp);
int iommu_map_nosync(struct iommu_domain *domain, unsigned long iova,