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

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Date:	Fri, 26 Oct 2012 10:48:13 -0600
From:	Shuah Khan <shuah.khan@...com>
To:	dhowells@...hat.com
Cc:	LKML <linux-kernel@...r.kernel.org>, shuahkhan@...il.com
Subject: [PATCH RFT linux-next] frv: 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/frv/include/asm/dma-mapping.h |    2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/frv/include/asm/dma-mapping.h b/arch/frv/include/asm/dma-mapping.h
index dfb8110..d8a8aac 100644
--- a/arch/frv/include/asm/dma-mapping.h
+++ b/arch/frv/include/asm/dma-mapping.h
@@ -6,6 +6,7 @@
 #include <asm/cacheflush.h>
 #include <asm/scatterlist.h>
 #include <asm/io.h>
+#include <linux/dma-debug.h>
 
 /*
  * See Documentation/DMA-API.txt for the description of how the
@@ -97,6 +98,7 @@ void dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg, int nele
 static inline
 int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
 {
+	debug_dma_mapping_error(dev, dma_addr);
 	return 0;
 }
 
-- 
1.7.9.5



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