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

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Message-ID: <1351211773.6851.24.camel@lorien2>
Date:	Thu, 25 Oct 2012 18:36:13 -0600
From:	Shuah Khan <shuah.khan@...com>
To:	davem@...emloft.net, kyungmin.park@...sung.com,
	m.szyprowski@...sung.com, sam@...nborg.org, arnd@...db.de
Cc:	sparclinux@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>,
	shuahkhan@...il.com
Subject: [PATCH RFT] sparc: dma-mapping: support debug_dma_mapping_error

>From 9e8feb61482288c5a5dd609e0dd17c1a262a48a3 Mon Sep 17 00:00:00 2001
From: Shuah Khan <shuahkhan@...il.com>
Date: Thu, 25 Oct 2012 18:31:42 -0600
Subject: [PATCH RFT] sparc: 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/sparc/include/asm/dma-mapping.h |    1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/sparc/include/asm/dma-mapping.h b/arch/sparc/include/asm/dma-mapping.h
index 8493fd3..05fe53f 100644
--- a/arch/sparc/include/asm/dma-mapping.h
+++ b/arch/sparc/include/asm/dma-mapping.h
@@ -59,6 +59,7 @@ static inline void dma_free_attrs(struct device *dev, size_t size,
 
 static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
 {
+	debug_dma_mapping_error(dev, dma_addr);
 	return (dma_addr == DMA_ERROR_CODE);
 }
 
-- 
1.7.9.5



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