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authorChristoph Hellwig <hch@lst.de>2017-05-22 11:07:48 +0200
committerChristoph Hellwig <hch@lst.de>2017-06-28 06:54:42 -0700
commita2b63aa2f45314bea077275c6009ba00c83826a0 (patch)
tree69d3b371920b3cc397b6e6a01457c7021ebe2bf4 /arch
parentdma-virt: remove dma_supported and mapping_error methods (diff)
downloadlinux-dev-a2b63aa2f45314bea077275c6009ba00c83826a0.tar.xz
linux-dev-a2b63aa2f45314bea077275c6009ba00c83826a0.zip
hexagon: remove arch-specific dma_supported implementation
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@lst.de> Acked-by: Richard Kuo <rkuo@codeaurora.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/hexagon/include/asm/dma-mapping.h2
-rw-r--r--arch/hexagon/kernel/dma.c9
2 files changed, 0 insertions, 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 8140b1c5de68..546792d176a4 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;