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authorChristoph Hellwig <hch@lst.de>2018-11-21 20:52:35 +0300
committerChristoph Hellwig <hch@lst.de>2018-12-06 17:56:36 +0300
commitb0cbeae4944924640bf550b75487729a20204c14 (patch)
treead7ddcb65ac796861e1a9af8db84a8eb116bb2e1 /include/linux/dma-direct.h
parent42ee3cae0ed38b6c04038bf851ea2496da2135bb (diff)
downloadlinux-b0cbeae4944924640bf550b75487729a20204c14.tar.xz
dma-direct: remove the mapping_error dma_map_ops method
The dma-direct code already returns (~(dma_addr_t)0x0) on mapping failures, so we can switch over to returning DMA_MAPPING_ERROR and let the core dma-mapping code handle the rest. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/dma-direct.h')
-rw-r--r--include/linux/dma-direct.h3
1 files changed, 0 insertions, 3 deletions
diff --git a/include/linux/dma-direct.h b/include/linux/dma-direct.h
index 61b78f934f64..6e5a47ae7d64 100644
--- a/include/linux/dma-direct.h
+++ b/include/linux/dma-direct.h
@@ -5,8 +5,6 @@
#include <linux/dma-mapping.h>
#include <linux/mem_encrypt.h>
-#define DIRECT_MAPPING_ERROR (~(dma_addr_t)0)
-
#ifdef CONFIG_ARCH_HAS_PHYS_TO_DMA
#include <asm/dma-direct.h>
#else
@@ -76,5 +74,4 @@ dma_addr_t dma_direct_map_page(struct device *dev, struct page *page,
int dma_direct_map_sg(struct device *dev, struct scatterlist *sgl, int nents,
enum dma_data_direction dir, unsigned long attrs);
int dma_direct_supported(struct device *dev, u64 mask);
-int dma_direct_mapping_error(struct device *dev, dma_addr_t dma_addr);
#endif /* _LINUX_DMA_DIRECT_H */