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authorLu Baolu <baolu.lu@linux.intel.com>2020-11-27 09:33:08 +0800
committerWill Deacon <will@kernel.org>2020-11-27 09:52:28 +0000
commit405a43cc00471d9f06c58704448f1a43e331826a (patch)
tree069d1504e84161d39270717a371823589c6a3fbb /drivers/iommu
parent58a8bb39490db31acbe8f4e24593a88533b4d947 (diff)
iommu/vt-d: Remove set but not used variable
Fixes gcc '-Wunused-but-set-variable' warning: drivers/iommu/intel/iommu.c:5643:27: warning: variable 'last_pfn' set but not used [-Wunused-but-set-variable] 5643 | unsigned long start_pfn, last_pfn; | ^~~~~~~~ This variable is never used, so remove it. Fixes: 2a2b8eaa5b25 ("iommu: Handle freelists when using deferred flushing in iommu drivers") Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> Link: https://lore.kernel.org/r/20201127013308.1833610-1-baolu.lu@linux.intel.com Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'drivers/iommu')
-rw-r--r--drivers/iommu/intel/iommu.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/iommu/intel/iommu.c b/drivers/iommu/intel/iommu.c
index 6d519a699ac2..e27eb6fc15f7 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,