linux-kernel - [PATCH 2/2 v2] Blackfin: fix dma-mapping build errors

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Date:	Mon, 22 Jun 2009 22:33:40 -0400
From:	Mike Frysinger <vapier@...too.org>
To:	linux-kernel@...r.kernel.org
Cc:	uclinux-dist-devel@...ckfin.uclinux.org,
	FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>
Subject: [PATCH 2/2 v2] Blackfin: fix dma-mapping build errors

From: FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>

The recent deprecation of dma_sync_{sg,single} ironically broke Blackfin
systems.  This is because we don't define dma_sync_sg_for_cpu at all, so
until the DMA asm-generic conversion/cleanup is done after the next
release, simply stub out the dma_sync_sg_for_{cpu,device} functions.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>
Signed-off-by: Mike Frysinger <vapier@...too.org>
---
 arch/blackfin/include/asm/dma-mapping.h |   13 +++++++++++++
 1 files changed, 13 insertions(+), 0 deletions(-)

diff --git a/arch/blackfin/include/asm/dma-mapping.h b/arch/blackfin/include/asm/dma-mapping.h
index d7d9148..ed6b1f3 100644
--- a/arch/blackfin/include/asm/dma-mapping.h
+++ b/arch/blackfin/include/asm/dma-mapping.h
@@ -95,4 +95,17 @@ static inline void dma_sync_single_for_device(struct device *dev,
 					enum dma_data_direction dir)
 {
 }
+
+static inline void dma_sync_sg_for_cpu(struct device *dev,
+					struct scatterlist *sg,
+					int nents, enum dma_data_direction dir)
+{
+}
+
+static inline void dma_sync_sg_for_device(struct device *dev,
+					struct scatterlist *sg,
+					int nents, enum dma_data_direction dir)
+{
+}
+
 #endif				/* _BLACKFIN_DMA_MAPPING_H */
-- 
1.6.3.1

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