iommu/vt-d: Clean up unused variable in find_or_alloc_domain

Remove it to make the code more concise.

Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>

diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index 601d3789211f511a1e67fae3ff90fcb519bc8a4e..fd5cfd85c166852ff724770b8de18517e431512b 100644 (file)
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -2574,7 +2574,7 @@ 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;
 
@@ -2582,8 +2582,6 @@ 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);