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microblaze: remove DMA_ERROR_CODE

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microblaze does not return errors for dma_map_page.

Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Christoph Hellwig 2017-05-21 12:30:35 +02:00
commit b0230a6952
1 changed files with 0 additions and 2 deletions
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arch/microblaze/include/asm/dma-mapping.h
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@ -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)