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Commit 7181772d authored by Laurent Pinchart's avatar Laurent Pinchart Committed by Mauro Carvalho Chehab
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V4L/DVB: videobuf: Don't export videobuf_(vmalloc|pages)_to_sg 



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

Signed-off-by: default avatarLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent fecfedeb

drivers/media/video/videobuf-dma-sg.c

+14 −4
Original line number Diff line number Diff line
@@ -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;

include/media/videobuf-dma-sg.h

+0 −17
Original line number Diff line number Diff line
@@ -24,23 +24,6 @@ 


/* --------------------------------------------------------------------- */



/*

 * 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.