# \[PATCH 12/44\] microblaze: remove DMA\_ERROR\_CODE

- From: Christoph Hellwig \<hch@lst.de\>
- Date: 2017-06-08 13:27:20 
- List: linux-arm-kernel
- Page: https://ratatoskr.run/linux-arm-kernel/2017/06/5016116
- Thread: https://ratatoskr.run/linux-arm-kernel/2017/06/5016133/t.md

```text
microblaze does not return errors for dma_map_page.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/microblaze/include/asm/dma-mapping.h | 2 --
 1 file changed, 2 deletions(-)

diff --git a/arch/microblaze/include/asm/dma-mapping.h b/arch/microblaze/include/asm/dma-mapping.h
index 3fad5e722a66..e15cd2f76e23 100644
--- a/arch/microblaze/include/asm/dma-mapping.h
+++ b/arch/microblaze/include/asm/dma-mapping.h
@@ -28,8 +28,6 @@
 #include <asm/io.h>
 #include <asm/cacheflush.h>
 
-#define DMA_ERROR_CODE		(~(dma_addr_t)0x0)
-
 #define __dma_alloc_coherent(dev, gfp, size, handle)	NULL
 #define __dma_free_coherent(size, addr)		((void)0)
 
-- 
2.11.0
```