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authorChristoph Hellwig <hch@lst.de>2017-05-21 14:17:10 +0200
committerChristoph Hellwig <hch@lst.de>2017-06-28 06:54:33 -0700
commit6009faa43f804c99b3d8fff94fa1e0692be70358 (patch)
tree05168471d1bc2b5d056a7e77bdc1bfd8ff844eb2 /arch/powerpc/include/asm/dma-mapping.h
parentceaf481c4f6ae6090288528825abc7d051bb1032 (diff)
powerpc: implement ->mapping_error
DMA_ERROR_CODE is going to go away, so don't rely on it. Instead define a ->mapping_error method for all IOMMU based dma operation instances. The direct ops don't ever return an error and don't need a ->mapping_error method. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/include/asm/dma-mapping.h')
-rw-r--r--arch/powerpc/include/asm/dma-mapping.h4
1 files changed, 0 insertions, 4 deletions
diff --git a/arch/powerpc/include/asm/dma-mapping.h b/arch/powerpc/include/asm/dma-mapping.h
index 181a095468e4..73aedbe6c977 100644
--- a/arch/powerpc/include/asm/dma-mapping.h
+++ b/arch/powerpc/include/asm/dma-mapping.h
@@ -17,10 +17,6 @@
#include <asm/io.h>
#include <asm/swiotlb.h>
-#ifdef CONFIG_PPC64
-#define DMA_ERROR_CODE (~(dma_addr_t)0x0)
-#endif
-
/* Some dma direct funcs must be visible for use in other dma_ops */
extern void *__dma_direct_alloc_coherent(struct device *dev, size_t size,
dma_addr_t *dma_handle, gfp_t flag,