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-rw-r--r--arch/arm/mm/dma-mapping.c2
-rw-r--r--arch/arm64/mm/dma-mapping.c2
2 files changed, 2 insertions, 2 deletions
diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index d41957eae6ef..f5dab4e9fb4b 100644
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -2078,7 +2078,7 @@ arm_iommu_create_mapping(struct bus_type *bus, dma_addr_t base, u64 size)
mapping->nr_bitmaps = 1;
mapping->extensions = extensions;
mapping->base = base;
- mapping->bits = BITS_PER_BYTE * bitmap_size;
+ mapping->bits = bits;
spin_lock_init(&mapping->lock);
diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c
index 06f9ffccd562..196c73e2cf9c 100644
--- a/arch/arm64/mm/dma-mapping.c
+++ b/arch/arm64/mm/dma-mapping.c
@@ -2064,7 +2064,7 @@ arm_iommu_create_mapping(struct bus_type *bus, dma_addr_t base, size_t size)
goto err2;
mapping->base = base;
- mapping->bits = BITS_PER_BYTE * bitmap_size;
+ mapping->bits = bits;
spin_lock_init(&mapping->lock);
mapping->domain = iommu_domain_alloc(bus);