linux-kernel - [PATCH RFT] ia64: dma-mapping: support debug_dma_mapping

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Date:	Thu, 25 Oct 2012 17:21:26 -0600
From:	Shuah Khan <shuah.khan@...com>
To:	tony.luck@...el.com, fenghua.yu@...el.com,
	kyungmin.park@...sung.com, m.szyprowski@...sung.com, arnd@...db.de,
	andrzej.p@...sung.com
Cc:	linux-ia64@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>,
	shuahkhan@...il.com
Subject: [PATCH RFT] ia64: dma-mapping: support debug_dma_mapping_error

Add support for debug_dma_mapping_error() call to avoid warning from
debug_dma_unmap() interface when it checks for mapping error checked
status. Without this patch, device driver failed to check map error
warning is generated.

Signed-off-by: Shuah Khan <shuah.khan@...com>
---
 arch/ia64/include/asm/dma-mapping.h |    1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/ia64/include/asm/dma-mapping.h b/arch/ia64/include/asm/dma-mapping.h
index 4f5e814..cf3ab7e 100644
--- a/arch/ia64/include/asm/dma-mapping.h
+++ b/arch/ia64/include/asm/dma-mapping.h
@@ -58,6 +58,7 @@ static inline void dma_free_attrs(struct device *dev, size_t size,
 static inline int dma_mapping_error(struct device *dev, dma_addr_t daddr)
 {
 	struct dma_map_ops *ops = platform_dma_get_ops(dev);
+	debug_dma_mapping_error(dev, daddr);
 	return ops->mapping_error(dev, daddr);
 }
 
-- 
1.7.9.5



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