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iommu/vt-d: Remove unused domain_get_iommu() 

It is not used anywhere. Remove it to avoid dead code.

Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Steve Wahl <steve.wahl@hpe.com>
Link: https://lore.kernel.org/r/20220702015610.2849494-2-baolu.lu@linux.intel.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Lu Baolu 2022-07-12 08:09:03 +08:00 committed by Joerg Roedel
parent 5eaafdf0c0
commit c3f27c834a
2 changed files with 0 additions and 19 deletions
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18
drivers/iommu/intel/iommu.c
View File

@ -445,24 +445,6 @@ int iommu_calculate_agaw(struct intel_iommu *iommu)
return __iommu_calculate_agaw(iommu, DEFAULT_DOMAIN_ADDRESS_WIDTH);
}
/* This functionin only returns single iommu in a domain */
struct intel_iommu *domain_get_iommu(struct dmar_domain *domain)
{
int iommu_id;
/* si_domain and vm domain should not get here. */
if (WARN_ON(!iommu_is_dma_domain(&domain->domain)))
return NULL;
for_each_domain_iommu(iommu_id, domain)
break;
if (iommu_id < 0 || iommu_id >= g_num_of_iommus)
return NULL;
return g_iommus[iommu_id];
}
static inline bool iommu_paging_structure_coherency(struct intel_iommu *iommu)
{
return sm_supported(iommu) ?

1
drivers/iommu/intel/iommu.h
View File

@ -725,7 +725,6 @@ extern int dmar_ir_support(void);
void *alloc_pgtable_page(int node);
void free_pgtable_page(void *vaddr);
struct intel_iommu *domain_get_iommu(struct dmar_domain *domain);
void iommu_flush_write_buffer(struct intel_iommu *iommu);
int intel_iommu_enable_pasid(struct intel_iommu *iommu, struct device *dev);
struct intel_iommu *device_to_iommu(struct device *dev, u8 *bus, u8 *devfn);