Messages in this thread | | | From | Matt Turner <> | Date | Wed, 4 May 2011 17:59:29 -0400 | Subject | Re: [PATCH] alpha: Add DMA_ERROR_CODE defn to avert compiler error in drm |
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On Wed, May 4, 2011 at 4:13 AM, Michael Cree <mcree@orcon.net.nz> wrote: > The radeon drm code now relies on DMA_ERROR_CODE. This defines > it in alpha dma-mapping header to at least enable me to compile > radeon drm/kms into kernel. > > Signed-off-by: Michael Cree <mcree@orcon.net.nz> > --- > arch/alpha/include/asm/dma-mapping.h | 2 ++ > 1 files changed, 2 insertions(+), 0 deletions(-) > > diff --git a/arch/alpha/include/asm/dma-mapping.h b/arch/alpha/include/asm/dma-mapping.h > index 4567aca..644d9c3 100644 > --- a/arch/alpha/include/asm/dma-mapping.h > +++ b/arch/alpha/include/asm/dma-mapping.h > @@ -3,6 +3,8 @@ > > #include <linux/dma-attrs.h> > > +#define DMA_ERROR_CODE 0 > + > extern struct dma_map_ops *dma_ops; > > static inline struct dma_map_ops *get_dma_ops(struct device *dev) > -- > 1.7.4.3 > >
Other architectures define this differently.
arch/ia64/include/asm/dma-mapping.h:#define DMA_ERROR_CODE 0 arch/microblaze/include/asm/dma-mapping.h:#define DMA_ERROR_CODE (~(dma_addr_t)0x0) arch/powerpc/include/asm/dma-mapping.h:#define DMA_ERROR_CODE (~(dma_addr_t)0x0) arch/sparc/include/asm/dma-mapping.h:#define DMA_ERROR_CODE (~(dma_addr_t)0x0) arch/x86/include/asm/dma-mapping.h:#define DMA_ERROR_CODE 0
Any idea what the reason is?
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