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

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Message-ID: <1351207747.6851.15.camel@lorien2>
Date:	Thu, 25 Oct 2012 17:29:07 -0600
From:	Shuah Khan <shuah.khan@...com>
To:	monstr@...str.eu, kyungmin.park@...sung.com,
	m.szyprowski@...sung.com, arnd@...db.de, andrzej.p@...sung.com
Cc:	microblaze-uclinux@...e.uq.edu.au,
	LKML <linux-kernel@...r.kernel.org>, shuahkhan@...il.com
Subject: [PATCH RFT] microblaze: 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/microblaze/include/asm/dma-mapping.h |    1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/microblaze/include/asm/dma-mapping.h b/arch/microblaze/include/asm/dma-mapping.h
index 01d2282..4451c7a 100644
--- a/arch/microblaze/include/asm/dma-mapping.h
+++ b/arch/microblaze/include/asm/dma-mapping.h
@@ -114,6 +114,7 @@ static inline void __dma_sync(unsigned long paddr,
 static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
 {
 	struct dma_map_ops *ops = get_dma_ops(dev);
+	debug_dma_mapping_error(dev, dma_addr);
 	if (ops->mapping_error)
 		return ops->mapping_error(dev, dma_addr);
 
-- 
1.7.9.5



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