}
void vchan_dma_desc_free_list(struct virt_dma_chan *vc, struct list_head *head);
-
void vchan_init(struct virt_dma_chan *vc, struct dma_device *dmadev);
+struct virt_dma_desc *vchan_find_desc(struct virt_dma_chan *, dma_cookie_t);
/**
* vchan_tx_prep - prepare a descriptor