--- zzzz-none-000/linux-3.10.107/include/media/videobuf-dma-sg.h	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/include/media/videobuf-dma-sg.h	2021-02-04 17:41:59.000000000 +0000
@@ -53,6 +53,9 @@
 
 	/* for kernel buffers */
 	void                *vaddr;
+	struct page         **vaddr_pages;
+	dma_addr_t          *dma_addr;
+	struct device       *dev;
 
 	/* for overlay buffers (pci-pci dma) */
 	dma_addr_t          bus_addr;
@@ -81,16 +84,8 @@
  * Despite the name, this is totally unrelated to videobuf, except that
  * videobuf-dma-sg uses the same API internally.
  */
-void videobuf_dma_init(struct videobuf_dmabuf *dma);
-int videobuf_dma_init_user(struct videobuf_dmabuf *dma, int direction,
-			   unsigned long data, unsigned long size);
-int videobuf_dma_init_kernel(struct videobuf_dmabuf *dma, int direction,
-			     int nr_pages);
-int videobuf_dma_init_overlay(struct videobuf_dmabuf *dma, int direction,
-			      dma_addr_t addr, int nr_pages);
 int videobuf_dma_free(struct videobuf_dmabuf *dma);
 
-int videobuf_dma_map(struct device *dev, struct videobuf_dmabuf *dma);
 int videobuf_dma_unmap(struct device *dev, struct videobuf_dmabuf *dma);
 struct videobuf_dmabuf *videobuf_to_dma(struct videobuf_buffer *buf);