Blackfin: fix dma-mapping build errors

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@lab.ntt.co.jp>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>

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 d7d9148e433c..ed6b1f3cccce 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 */