linux-kernel - [PATCH 4/9] microblaze: dma-mapping: support debug_dma_mapping

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Date:	Fri, 23 Nov 2012 14:33:42 -0700
From:	Shuah Khan <shuah.khan@...com>
To:	Joerg Roedel <joro@...tes.org>, a-jacquiot@...com,
	fenghua.yu@...el.com, catalin.marinas@....com, lethal@...ux-sh.org,
	benh@...nel.crashing.org, ralf@...ux-mips.org, tony.luck@...el.com,
	davem@...emloft.net, m.szyprowski@...sung.com, msalter@...hat.com,
	monstr@...str.eu, Ming Lei <ming.lei@...onical.com>
Cc:	linux-arm-kernel@...ts.infradead.org, linux-c6x-dev@...ux-c6x.org,
	linux-ia64@...r.kernel.org, linux-mips@...ux-mips.org,
	linuxppc-dev@...ts.ozlabs.org, linux-sh@...r.kernel.org,
	sparclinux@...r.kernel.org, microblaze-uclinux@...e.uq.edu.au,
	shuahkhan@...il.com, LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH 4/9] 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>
---

This patch is already in linux-next. Including it in this series for
completeness. linux-next commit f229605441030bcd315c21d97b25889d63ed0130

-- shuah
---
 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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