[PATCH 2/4] iommu/vt-d: Clean up unused variable in find_or_alloc_domain

From: Lu Baolu
Date: Fri May 04 2018 - 01:17:57 EST


Remove it to make the code more concise.

Signed-off-by: Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx>
---
drivers/iommu/intel-iommu.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index 749d8f2..9064607 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -2533,7 +2533,7 @@ static struct dmar_domain *find_or_alloc_domain(struct device *dev, int gaw)
struct device_domain_info *info = NULL;
struct dmar_domain *domain = NULL;
struct intel_iommu *iommu;
- u16 req_id, dma_alias;
+ u16 dma_alias;
unsigned long flags;
u8 bus, devfn;

@@ -2541,8 +2541,6 @@ static struct dmar_domain *find_or_alloc_domain(struct device *dev, int gaw)
if (!iommu)
return NULL;

- req_id = ((u16)bus << 8) | devfn;
-
if (dev_is_pci(dev)) {
struct pci_dev *pdev = to_pci_dev(dev);

--
2.7.4