diff --git a/drivers/iommu/intel/iommu.c b/drivers/iommu/intel/iommu.c
index 6d519a699ac2109e5ec1c02251711e43bbac5033..e27eb6fc15f7f4089d3ddc30b8dd59f71c9c0e51 100644
--- a/drivers/iommu/intel/iommu.c
+++ b/drivers/iommu/intel/iommu.c
@@ -4948,13 +4948,12 @@ static void intel_iommu_tlb_sync(struct iommu_domain *domain,
 	struct dmar_domain *dmar_domain = to_dmar_domain(domain);
 	unsigned long iova_pfn = IOVA_PFN(gather->start);
 	size_t size = gather->end - gather->start;
-	unsigned long start_pfn, last_pfn;
+	unsigned long start_pfn;
 	unsigned long nrpages;
 	int iommu_id;
 
 	nrpages = aligned_nrpages(gather->start, size);
 	start_pfn = mm_to_dma_pfn(iova_pfn);
-	last_pfn = start_pfn + nrpages - 1;
 
 	for_each_domain_iommu(iommu_id, dmar_domain)
 		iommu_flush_iotlb_psi(g_iommus[iommu_id], dmar_domain,