From: Christoph Hellwig <hch@lst.de>
Date: Wed, 20 Dec 2017 14:56:04 +0000 (+0100)
Subject: riscv: remove the unused dma_capable helper
X-Git-Tag: android-x86-8.1-r1~1785^2~50
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=b8ee205af46cd060648814bc248fe57d85f61ac9;p=android-x86%2Fkernel.git

riscv: remove the unused dma_capable helper

Signed-off-by: Christoph Hellwig <hch@lst.de>
---

diff --git a/arch/riscv/include/asm/dma-mapping.h b/arch/riscv/include/asm/dma-mapping.h
index 3eec1000196d..73849e2cc761 100644
--- a/arch/riscv/include/asm/dma-mapping.h
+++ b/arch/riscv/include/asm/dma-mapping.h
@@ -27,12 +27,4 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 	return &dma_noop_ops;
 }
 
-static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
-{
-	if (!dev->dma_mask)
-		return false;
-
-	return addr + size - 1 <= *dev->dma_mask;
-}
-
 #endif	/* __ASM_RISCV_DMA_MAPPING_H */