Those functions are only called inside videobuf-dma-sg.c, make them
static.

Signed-off-by: Laurent Pinchart <laurent.pinch...@ideasonboard.com>
---
 drivers/media/video/videobuf-dma-sg.c |   18 ++++++++++++++----
 include/media/videobuf-dma-sg.h       |   17 -----------------
 2 files changed, 14 insertions(+), 21 deletions(-)

diff --git a/drivers/media/video/videobuf-dma-sg.c 
b/drivers/media/video/videobuf-dma-sg.c
index 17b1f89..8924e51 100644
--- a/drivers/media/video/videobuf-dma-sg.c
+++ b/drivers/media/video/videobuf-dma-sg.c
@@ -57,7 +57,13 @@ MODULE_LICENSE("GPL");
 
 /* --------------------------------------------------------------------- */
 
-struct scatterlist *videobuf_vmalloc_to_sg(unsigned char *virt, int nr_pages)
+/*
+ * Return a scatterlist for some page-aligned vmalloc()'ed memory
+ * block (NULL on errors).  Memory for the scatterlist is allocated
+ * using kmalloc.  The caller must free the memory.
+ */
+static struct scatterlist *videobuf_vmalloc_to_sg(unsigned char *virt,
+                                                 int nr_pages)
 {
        struct scatterlist *sglist;
        struct page *pg;
@@ -81,10 +87,14 @@ err:
        vfree(sglist);
        return NULL;
 }
-EXPORT_SYMBOL_GPL(videobuf_vmalloc_to_sg);
 
-struct scatterlist *videobuf_pages_to_sg(struct page **pages, int nr_pages,
-                                        int offset)
+/*
+ * Return a scatterlist for a an array of userpages (NULL on errors).
+ * Memory for the scatterlist is allocated using kmalloc.  The caller
+ * must free the memory.
+ */
+static struct scatterlist *videobuf_pages_to_sg(struct page **pages,
+                                               int nr_pages, int offset)
 {
        struct scatterlist *sglist;
        int i;
diff --git a/include/media/videobuf-dma-sg.h b/include/media/videobuf-dma-sg.h
index 8013010..913860e 100644
--- a/include/media/videobuf-dma-sg.h
+++ b/include/media/videobuf-dma-sg.h
@@ -25,23 +25,6 @@
 /* --------------------------------------------------------------------- */
 
 /*
- * Return a scatterlist for some page-aligned vmalloc()'ed memory
- * block (NULL on errors).  Memory for the scatterlist is allocated
- * using kmalloc.  The caller must free the memory.
- */
-struct scatterlist *videobuf_vmalloc_to_sg(unsigned char *virt, int nr_pages);
-
-/*
- * Return a scatterlist for a an array of userpages (NULL on errors).
- * Memory for the scatterlist is allocated using kmalloc.  The caller
- * must free the memory.
- */
-struct scatterlist *videobuf_pages_to_sg(struct page **pages, int nr_pages,
-                                        int offset);
-
-/* --------------------------------------------------------------------- */
-
-/*
  * A small set of helper functions to manage buffers (both userland
  * and kernel) for DMA.
  *
-- 
1.6.4.4

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