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iommu/amd: Remove the unused amd_iommu_get_v2_domain function 

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20210402143312.372386-3-hch@lst.de
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Christoph Hellwig 2021-04-02 16:33:10 +02:00 committed by Joerg Roedel
parent d151c85c52
commit 42fa2bda18
2 changed files with 0 additions and 35 deletions
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1
drivers/iommu/amd/amd_iommu.h
View File

@ -65,7 +65,6 @@ extern int amd_iommu_flush_tlb(struct iommu_domain *dom, u32 pasid);
extern int amd_iommu_domain_set_gcr3(struct iommu_domain *dom, u32 pasid,
unsigned long cr3);
extern int amd_iommu_domain_clear_gcr3(struct iommu_domain *dom, u32 pasid);
extern struct iommu_domain *amd_iommu_get_v2_domain(struct pci_dev *pdev);
#ifdef CONFIG_IRQ_REMAP
extern int amd_iommu_create_irq_domain(struct amd_iommu *iommu);

34
drivers/iommu/amd/iommu.c
View File

@ -2522,40 +2522,6 @@ int amd_iommu_complete_ppr(struct pci_dev *pdev, u32 pasid,
}
EXPORT_SYMBOL(amd_iommu_complete_ppr);
struct iommu_domain *amd_iommu_get_v2_domain(struct pci_dev *pdev)
{
struct protection_domain *pdomain;
struct iommu_dev_data *dev_data;
struct device *dev = &pdev->dev;
struct iommu_domain *io_domain;
if (!check_device(dev))
return NULL;
dev_data = dev_iommu_priv_get(&pdev->dev);
pdomain = dev_data->domain;
io_domain = iommu_get_domain_for_dev(dev);
if (pdomain == NULL && dev_data->defer_attach) {
dev_data->defer_attach = false;
pdomain = to_pdomain(io_domain);
attach_device(dev, pdomain);
}
if (pdomain == NULL)
return NULL;
if (io_domain->type != IOMMU_DOMAIN_DMA)
return NULL;
/* Only return IOMMUv2 domains */
if (!(pdomain->flags & PD_IOMMUV2_MASK))
return NULL;
return &pdomain->domain;
}
EXPORT_SYMBOL(amd_iommu_get_v2_domain);
int amd_iommu_device_info(struct pci_dev *pdev,
struct amd_iommu_device_info *info)
{