linux-kernel - [PATCH 4/4] xtensa: fix error with dma_set

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Date:	Tue,  8 Sep 2015 18:48:34 +0530
From:	Sudip Mukherjee <sudipm.mukherjee@...il.com>
To:	Chris Zankel <chris@...kel.net>, Max Filippov <jcmvbkbc@...il.com>
Cc:	linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	Christoph Hellwig <hch@....de>, linux-xtensa@...ux-xtensa.org,
	Sudip Mukherjee <sudipm.mukherjee@...il.com>
Subject: [PATCH 4/4] xtensa: fix error with dma_set_mask

commit 13bad70fb5ba ("dma-mapping: consolidate dma_set_mask") has
removed dma_set_mask() from individual arch files to
asm-generic/dma-mapping-common.h. But it was not removed for xtensa
architecture and as a result we were getting errors like:
error: redefinition of 'dma_set_mask'
while building with allmodconfig.

Signed-off-by: Sudip Mukherjee <sudip@...torindia.org>
---
 arch/xtensa/include/asm/dma-mapping.h | 11 -----------
 1 file changed, 11 deletions(-)

diff --git a/arch/xtensa/include/asm/dma-mapping.h b/arch/xtensa/include/asm/dma-mapping.h
index 019a94a..15992a3 100644
--- a/arch/xtensa/include/asm/dma-mapping.h
+++ b/arch/xtensa/include/asm/dma-mapping.h
@@ -43,17 +43,6 @@ dma_supported(struct device *dev, u64 mask)
 #define dma_alloc_noncoherent(d, s, h, f) dma_alloc_attrs(d, s, h, f, NULL)
 #define dma_free_noncoherent(d, s, v, h) dma_free_attrs(d, s, v, h, NULL)
 
-static inline int
-dma_set_mask(struct device *dev, u64 mask)
-{
-	if(!dev->dma_mask || !dma_supported(dev, mask))
-		return -EIO;
-
-	*dev->dma_mask = mask;
-
-	return 0;
-}
-
 void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
 		    enum dma_data_direction direction);
 
-- 
1.9.1

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