iommu/dma: Remove unused variable

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>

diff --git a/drivers/iommu/dma-iommu.c b/drivers/iommu/dma-iommu.c
index d19f3d6..77aabe6 100644 (file)
--- a/drivers/iommu/dma-iommu.c
+++ b/drivers/iommu/dma-iommu.c
@@ -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) {