iommu/vt-d: Don't use magic number in dma_pte_superpage

Use the already defined DMA_PTE_LARGE_PAGE for testing
instead of hardcoding the value again.

Signed-off-by: Joerg Roedel <jroedel@suse.de>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index 9b9f28ea3db2..5d86e932c8dc 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -304,7 +304,7 @@ static inline bool dma_pte_present(struct dma_pte *pte)
 
 static inline bool dma_pte_superpage(struct dma_pte *pte)
 {
-        return (pte->val & (1 << 7));
+        return (pte->val & DMA_PTE_LARGE_PAGE);
 }
 
 static inline int first_pte_in_page(struct dma_pte *pte)