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| author | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2010-05-11 10:36:32 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2010-08-02 15:22:36 -0300 |
| commit | 7181772d8915e6025ee4f2f6c5b16064689646f0 (patch) | |
| tree | d482d5cb773ef1a08f94c980072dc422b85348f9 /drivers/media/video/videobuf-dma-sg.c | |
| parent | fecfedeb27ab9497cbdd2c6fb7972082a7ed9263 (diff) | |
| download | lwn-7181772d8915e6025ee4f2f6c5b16064689646f0.tar.gz lwn-7181772d8915e6025ee4f2f6c5b16064689646f0.zip | |
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: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/videobuf-dma-sg.c')
| -rw-r--r-- | drivers/media/video/videobuf-dma-sg.c | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/drivers/media/video/videobuf-dma-sg.c b/drivers/media/video/videobuf-dma-sg.c index 17b1f89e8133..8924e51408c1 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; |