# \[PATCH 32/44\] hexagon: remove the unused dma\_is\_consistent prototype

- From: Christoph Hellwig \<hch@lst.de\>
- Date: 2017-06-08 13:32:20 
- List: linux-arm-kernel
- Page: https://ratatoskr.run/linux-arm-kernel/2017/06/5016089
- Thread: https://ratatoskr.run/linux-arm-kernel/2017/06/5016133/t.md

```text
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/hexagon/include/asm/dma-mapping.h | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/hexagon/include/asm/dma-mapping.h b/arch/hexagon/include/asm/dma-mapping.h
index 9c15cb5271a6..463dbc18f853 100644
--- a/arch/hexagon/include/asm/dma-mapping.h
+++ b/arch/hexagon/include/asm/dma-mapping.h
@@ -37,7 +37,6 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 	return dma_ops;
 }
 
-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);
 
-- 
2.11.0
```
