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

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Message-ID: <1351269163.4013.27.camel@lorien2>
Date:	Fri, 26 Oct 2012 10:32:43 -0600
From:	Shuah Khan <shuah.khan@...com>
To:	rth@...ddle.net, ink@...assic.park.msu.ru, mattst88@...il.com,
	kyungmin.park@...sung.com, m.szyprowski@...sung.com, arnd@...db.de,
	andrzej.p@...sung.com
Cc:	linux-alpha@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>,
	shuahkhan@...il.com
Subject: [PATCH RFT linux-next] alpha: 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/alpha/include/asm/dma-mapping.h |    1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/alpha/include/asm/dma-mapping.h b/arch/alpha/include/asm/dma-mapping.h
index dfa32f0..b4d483b 100644
--- a/arch/alpha/include/asm/dma-mapping.h
+++ b/arch/alpha/include/asm/dma-mapping.h
@@ -32,6 +32,7 @@ static inline void dma_free_attrs(struct device *dev, size_t size,
 
 static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
 {
+	debug_dma_mapping_error(dev, dma_addr);
 	return get_dma_ops(dev)->mapping_error(dev, dma_addr);
 }
 
-- 
1.7.9.5



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