[Xen-devel] [PATCH 31/44] hexagon: remove arch-specific dma_supported implementation

[Christoph Hellwig <hch@xxxxxx>]

This implementation is simply bogus - hexagon only has a simple
direct mapped DMA implementation and thus doesn't care about the
address.

Signed-off-by: Christoph Hellwig <hch@xxxxxx>
---
 arch/hexagon/include/asm/dma-mapping.h | 2 --
 arch/hexagon/kernel/dma.c              | 9 ---------
 2 files changed, 11 deletions(-)

diff --git a/arch/hexagon/include/asm/dma-mapping.h 
b/arch/hexagon/include/asm/dma-mapping.h
index 00e3f10113b0..9c15cb5271a6 100644
--- a/arch/hexagon/include/asm/dma-mapping.h
+++ b/arch/hexagon/include/asm/dma-mapping.h
@@ -37,8 +37,6 @@ static inline const struct dma_map_ops 
*get_arch_dma_ops(struct bus_type *bus)
        return dma_ops;
 }
 
-#define HAVE_ARCH_DMA_SUPPORTED 1
-extern int dma_supported(struct device *dev, u64 mask);
 extern int dma_is_consistent(struct device *dev, dma_addr_t dma_handle);
 extern void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
                           enum dma_data_direction direction);
diff --git a/arch/hexagon/kernel/dma.c b/arch/hexagon/kernel/dma.c
index 71269dc0f225..9ff1b2041f85 100644
--- a/arch/hexagon/kernel/dma.c
+++ b/arch/hexagon/kernel/dma.c
@@ -35,15 +35,6 @@ static inline void *dma_addr_to_virt(dma_addr_t dma_addr)
        return phys_to_virt((unsigned long) dma_addr);
 }
 
-int dma_supported(struct device *dev, u64 mask)
-{
-       if (mask == DMA_BIT_MASK(32))
-               return 1;
-       else
-               return 0;
-}
-EXPORT_SYMBOL(dma_supported);
-
 static struct gen_pool *coherent_pool;
 
 
-- 
2.11.0


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