+#ifdef CONFIG_ASYNC_TX_DMA
+#define async_dmaengine_get() dmaengine_get()
+#define async_dmaengine_put() dmaengine_put()
+#define async_dma_find_channel(type) dma_find_channel(type)
+#else
+static inline void async_dmaengine_get(void)
+{
+}
+static inline void async_dmaengine_put(void)
+{
+}
+static inline struct dma_chan *
+async_dma_find_channel(enum dma_transaction_type type)
+{
+ return NULL;
+}
+#endif
+