linux-kernel - [PATCH v2 linux-next] microblaze: dma-mapping: support debug_dma_mapping

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Date:	Fri, 26 Oct 2012 09:53:32 -0600
From:	Shuah Khan <shuah.khan@...com>
To:	monstr@...str.eu
Cc:	kyungmin.park@...sung.com, m.szyprowski@...sung.com, arnd@...db.de,
	andrzej.p@...sung.com, microblaze-uclinux@...e.uq.edu.au,
	LKML <linux-kernel@...r.kernel.org>, shuahkhan@...il.com
Subject: [PATCH v2 linux-next] 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>
Acked-by: Michal Simek <monstr@...str.eu>
---
 arch/microblaze/include/asm/dma-mapping.h |    2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/microblaze/include/asm/dma-mapping.h b/arch/microblaze/include/asm/dma-mapping.h
index 01d2282..46460f1 100644
--- a/arch/microblaze/include/asm/dma-mapping.h
+++ b/arch/microblaze/include/asm/dma-mapping.h
@@ -114,6 +114,8 @@ 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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