powerpc: Fix !CONFIG_PPC_NEED_DMA_SYNC_OPS build warning

Change #define stubs of dma_sync ops to be empty static inlines
to avoid build warning.

Signed-off-by: Becky Bruce <beckyb@kernel.crashing.org>
Acked-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>

diff --git a/arch/powerpc/include/asm/dma-mapping.h b/arch/powerpc/include/asm/dma-mapping.h
index 9063184fa6fec3a345bb1ae877e8c0e9197b8a96..86cef7ddc8d5f251b07c6c838bf7dcba9d8d579d 100644 (file)
--- a/arch/powerpc/include/asm/dma-mapping.h
+++ b/arch/powerpc/include/asm/dma-mapping.h
@@ -363,12 +363,41 @@ static inline void dma_sync_single_range_for_device(struct device *dev,
                                              size, direction);
 }
 #else /* CONFIG_PPC_NEED_DMA_SYNC_OPS */
-#define dma_sync_single_for_cpu(d, h, s, dir) ((void)0)
-#define dma_sync_single_for_device(d, h, s, dir) ((void)0)
-#define dma_sync_single_range_for_cpu(d, h, o, s, dir) ((void)0)
-#define dma_sync_single_range_for_device(d, h, o, s, dir) ((void)0)
-#define dma_sync_sg_for_cpu(d, s, n, dir) ((void)0)
-#define dma_sync_sg_for_device(d, s, n, dir) ((void)0)
+static inline void dma_sync_single_for_cpu(struct device *dev,
+               dma_addr_t dma_handle, size_t size,
+               enum dma_data_direction direction)
+{
+}
+
+static inline void dma_sync_single_for_device(struct device *dev,
+               dma_addr_t dma_handle, size_t size,
+               enum dma_data_direction direction)
+{
+}
+
+static inline void dma_sync_sg_for_cpu(struct device *dev,
+               struct scatterlist *sgl, int nents,
+               enum dma_data_direction direction)
+{
+}
+
+static inline void dma_sync_sg_for_device(struct device *dev,
+               struct scatterlist *sgl, int nents,
+               enum dma_data_direction direction)
+{
+}
+
+static inline void dma_sync_single_range_for_cpu(struct device *dev,
+               dma_addr_t dma_handle, unsigned long offset, size_t size,
+               enum dma_data_direction direction)
+{
+}
+
+static inline void dma_sync_single_range_for_device(struct device *dev,
+               dma_addr_t dma_handle, unsigned long offset, size_t size,
+               enum dma_data_direction direction)
+{
+}
 #endif
 
 static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)