I fixed this as shown: diff --git a/arch/powerpc/kernel/dma-iommu.c b/arch/powerpc/kernel/dma-iommu.c index c724548ca295c0..111249fd619de8 100644 --- a/arch/powerpc/kernel/dma-iommu.c +++ b/arch/powerpc/kernel/dma-iommu.c @@ -10,6 +10,7 @@ #include <linux/pci.h> #include <asm/iommu.h> +#ifdef CONFIG_ARCH_HAS_DMA_MAP_DIRECT #define can_map_direct(dev, addr) \ ((dev)->bus_dma_limit >= phys_to_dma((dev), (addr))) @@ -64,6 +65,7 @@ bool arch_dma_unmap_sg_direct(struct device *dev, struct scatterlist *sg, return true; } +#endif /* CONFIG_ARCH_HAS_DMA_MAP_DIRECT */ /* * Generic iommu implementation
