This can be built without CONFIG_ARM_DMA_USE_IOMMU.
Signed-off-by: Hiroshi Doyu <hd...@nvidia.com>
---
arch/arm/include/asm/device.h | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/arch/arm/include/asm/device.h b/arch/arm/include/asm/device.h
index 5191a83..6fbe514 100644
--- a/arch/arm/include/asm/device.h
+++ b/arch/arm/include/asm/device.h
@@ -33,4 +33,10 @@ struct pdev_archdata {
#endif
};
+#ifdef CONFIG_ARM_DMA_USE_IOMMU
+#define to_dma_iommu_mapping(dev) ((dev)->archdata.mapping)
+#else
+#define to_dma_iommu_mapping(dev) NULL
+#endif
+
#endif
--
1.7.9.5
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