summaryrefslogtreecommitdiff
path: root/drivers/iommu
diff options
context:
space:
mode:
authorShaokun Zhang <zhangshaokun@hisilicon.com>2019-01-24 15:10:02 +0800
committerJoerg Roedel <jroedel@suse.de>2019-01-24 15:14:35 +0100
commitc61a4633a56aaa85bd61645c4188340f8bb2f7f1 (patch)
treeb6f9b8f2c47167049d53e23e78c91ee15f8c7171 /drivers/iommu
parentbd3c2e66e4cb91ed9294b5da920deeb45db0c13a (diff)
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>
Diffstat (limited to 'drivers/iommu')
-rw-r--r--drivers/iommu/dma-iommu.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/iommu/dma-iommu.c b/drivers/iommu/dma-iommu.c
index d19f3d6b43c1..77aabe637a60 100644
--- 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) {