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-rw-r--r--arch/x86/kernel/pci-dma.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c
index 967dfcf..00527e7 100644
--- a/arch/x86/kernel/pci-dma.c
+++ b/arch/x86/kernel/pci-dma.c
@@ -35,6 +35,8 @@ int iommu_detected __read_mostly = 0;
int iommu_bio_merge __read_mostly = 0;
EXPORT_SYMBOL(iommu_bio_merge);
+dma_addr_t bad_dma_address __read_mostly = 0;
+EXPORT_SYMBOL(bad_dma_address);
int dma_set_mask(struct device *dev, u64 mask)
{