microblaze: remove DMA_ERROR_CODE

microblaze does not return errors for dma_map_page.

Signed-off-by: Christoph Hellwig <hch@lst.de>

diff --git a/arch/microblaze/include/asm/dma-mapping.h b/arch/microblaze/include/asm/dma-mapping.h
index 3fad5e722a6690b43ddae12092dfc53f73e52501..e15cd2f76e23afb8a086a77ebf2ea2ee2f7e8b22 100644 (file)
--- 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)