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authorChristoph Hellwig <hch@lst.de>2019-05-20 09:29:26 +0200
committerJoerg Roedel <jroedel@suse.de>2019-05-27 17:31:10 +0200
commit185da893fab1caa458c47f032a6f53717dbae2eb (patch)
tree579dc81b1f505ab62aad1113f4a974c8e5858726 /include/linux/dma-iommu.h
parentcd6c84d8f0cdc911df435bb075ba22ce3c605b07 (diff)
downloadlwn-185da893fab1caa458c47f032a6f53717dbae2eb.tar.gz
lwn-185da893fab1caa458c47f032a6f53717dbae2eb.zip
iommu/dma: Cleanup dma-iommu.h
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 <hch@lst.de> Reviewed-by: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'include/linux/dma-iommu.h')
-rw-r--r--include/linux/dma-iommu.h6
1 files 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 */