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iommu/dma: Remove unused variable

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end_pfn is never used after commit <aa3ac9469c18> ('iommu/iova: Make dma
32bit pfn implicit'), cleanup it.

Cc: Joerg Roedel <jroedel@suse.de>
Cc: Robin Murphy <robin.murphy@arm.com>
Cc: Zhen Lei <thunder.leizhen@huawei.com>
Signed-off-by: Shaokun Zhang <zhangshaokun@hisilicon.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Shaokun Zhang 2019-01-24 15:10:02 +08:00 committed by Joerg Roedel
parent bd3c2e66e4
commit c61a4633a5
1 changed files with 1 additions and 2 deletions
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3
drivers/iommu/dma-iommu.c
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@ -289,7 +289,7 @@ int iommu_dma_init_domain(struct iommu_domain *domain, dma_addr_t base,
{
struct iommu_dma_cookie *cookie = domain->iova_cookie;
struct iova_domain *iovad = &cookie->iovad;
unsigned long order, base_pfn, end_pfn;
unsigned long order, base_pfn;
int attr;
if (!cookie || cookie->type != IOMMU_DMA_IOVA_COOKIE)
@ -298,7 +298,6 @@ int iommu_dma_init_domain(struct iommu_domain *domain, dma_addr_t base,
/* Use the smallest supported page size for IOVA granularity */
order = __ffs(domain->pgsize_bitmap);
base_pfn = max_t(unsigned long, 1, base >> order);
end_pfn = (base + size - 1) >> order;
/* Check the domain allows at least some access to the device... */
if (domain->geometry.force_aperture) {