No need for a __KERNEL__ guard outside uapi and add a missing comment describing the #else cpp statement. Last but not least include <linux/errno.h> instead of the asm version, which is frowned upon.
Signed-off-by: Christoph Hellwig <h...@lst.de> Reviewed-by: Robin Murphy <robin.mur...@arm.com> --- include/linux/dma-iommu.h | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/include/linux/dma-iommu.h b/include/linux/dma-iommu.h index 476e0c54de2d..dfb83f9c24dc 100644 --- a/include/linux/dma-iommu.h +++ b/include/linux/dma-iommu.h @@ -16,9 +16,8 @@ #ifndef __DMA_IOMMU_H #define __DMA_IOMMU_H -#ifdef __KERNEL__ +#include <linux/errno.h> #include <linux/types.h> -#include <asm/errno.h> #ifdef CONFIG_IOMMU_DMA #include <linux/dma-mapping.h> @@ -86,7 +85,7 @@ void iommu_dma_compose_msi_msg(struct msi_desc *desc, void iommu_dma_get_resv_regions(struct device *dev, struct list_head *list); -#else +#else /* CONFIG_IOMMU_DMA */ struct iommu_domain; struct msi_desc; @@ -128,5 +127,4 @@ static inline void iommu_dma_get_resv_regions(struct device *dev, struct list_he } #endif /* CONFIG_IOMMU_DMA */ -#endif /* __KERNEL__ */ #endif /* __DMA_IOMMU_H */ -- 2.20.1
