diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
index cb286b1..c271608 100644
--- a/include/linux/dmaengine.h
+++ b/include/linux/dmaengine.h
@@ -995,6 +995,7 @@
 void dma_async_device_unregister(struct dma_device *device);
 void dma_run_dependencies(struct dma_async_tx_descriptor *tx);
 struct dma_chan *dma_find_channel(enum dma_transaction_type tx_type);
+struct dma_chan *dma_get_slave_channel(struct dma_chan *chan);
 struct dma_chan *net_dma_find_channel(void);
 #define dma_request_channel(mask, x, y) __dma_request_channel(&(mask), x, y)
 #define dma_request_slave_channel_compat(mask, x, y, dev, name) \