[PATCH 6/9] powerpc: dma_debug: add debug_dma_mapping_error support
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- To: Joerg Roedel <joro@xxxxxxxxxx>, a-jacquiot@xxxxxx, fenghua.yu@xxxxxxxxx, catalin.marinas@xxxxxxx, lethal@xxxxxxxxxxxx, benh@xxxxxxxxxxxxxxxxxxx, ralf@xxxxxxxxxxxxxx, tony.luck@xxxxxxxxx, davem@xxxxxxxxxxxxx, m.szyprowski@xxxxxxxxxxx, msalter@xxxxxxxxxx, monstr@xxxxxxxxx, Ming Lei <ming.lei@xxxxxxxxxxxxx>
- Subject: [PATCH 6/9] powerpc: dma_debug: add debug_dma_mapping_error support
- From: Shuah Khan <shuah.khan@xxxxxx>
- Date: Fri, 23 Nov 2012 14:35:36 -0700
- Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx, linux-c6x-dev@xxxxxxxxxxxxx, linux-ia64@xxxxxxxxxxxxxxx, linux-mips@xxxxxxxxxxxxxx, linuxppc-dev@xxxxxxxxxxxxxxxx, linux-sh@xxxxxxxxxxxxxxx, sparclinux@xxxxxxxxxxxxxxx, microblaze-uclinux@xxxxxxxxxxxxxx, shuahkhan@xxxxxxxxx, LKML <linux-kernel@xxxxxxxxxxxxxxx>
- List-id: <linux-ia64.vger.kernel.org>
- Organization: ISS-Linux
- Reply-to: shuah.khan@xxxxxx
Add dma-debug interface debug_dma_mapping_error() to debug drivers that fail
to check dma mapping errors on addresses returned by dma_map_single() and
dma_map_page() interfaces.
Signed-off-by: Shuah Khan <shuah.khan@xxxxxx>
---
arch/powerpc/include/asm/dma-mapping.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/powerpc/include/asm/dma-mapping.h b/arch/powerpc/include/asm/dma-mapping.h
index 7816087..e27e9ad 100644
--- a/arch/powerpc/include/asm/dma-mapping.h
+++ b/arch/powerpc/include/asm/dma-mapping.h
@@ -172,6 +172,7 @@ static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
{
struct dma_map_ops *dma_ops = get_dma_ops(dev);
+ debug_dma_mapping_error(dev, dma_addr);
if (dma_ops->mapping_error)
return dma_ops->mapping_error(dev, dma_addr);
--
1.7.9.5
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