From: Christoph Hellwig <hch@lst.de>
Date: Mon, 22 May 2017 09:11:20 +0000 (+0200)
Subject: openrisc: remove arch-specific dma_supported implementation
X-Git-Tag: rel_imx_4.19.35_1.1.0~12231^2~23
X-Git-Url: https://git.somdevices.com/?a=commitdiff_plain;h=19ad53e498745416a77c0377cbb4ee771eedd35b;p=linux.git

openrisc: remove arch-specific dma_supported implementation

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

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

diff --git a/arch/openrisc/include/asm/dma-mapping.h b/arch/openrisc/include/asm/dma-mapping.h
index a4ea139c2ef9..f41bd3cb76d9 100644
--- a/arch/openrisc/include/asm/dma-mapping.h
+++ b/arch/openrisc/include/asm/dma-mapping.h
@@ -33,11 +33,4 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 	return &or1k_dma_map_ops;
 }
 
-#define HAVE_ARCH_DMA_SUPPORTED 1
-static inline int dma_supported(struct device *dev, u64 dma_mask)
-{
-	/* Support 32 bit DMA mask exclusively */
-	return dma_mask == DMA_BIT_MASK(32);
-}
-
 #endif	/* __ASM_OPENRISC_DMA_MAPPING_H */