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media: vb2 vmalloc: Constify dma_buf_ops structures

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dma_buf_ops are not supposed to change at runtime. All functions
working with dma_buf_ops provided by <linux/dma-buf.h> work with
const dma_buf_ops. So mark the non-const structs as const.

File size before:
   text	   data	    bss	    dec	    hex	filename
   3171	    192	      0	   3363	    d23 drivers/media/v4l2-core/videobuf2-vmalloc.o

File size After adding 'const':
   text	   data	    bss	    dec	    hex	filename
   3291	     80	      0	   3371	    d2b drivers/media/v4l2-core/videobuf2-vmalloc.o

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This commit is contained in:
Arvind Yadav 2017-07-01 07:37:26 -04:00 committed by Mauro Carvalho Chehab
parent 6e03db3863
commit 59310b7a06
1 changed files with 1 additions and 1 deletions
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2
drivers/media/v4l2-core/videobuf2-vmalloc.c
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@ -338,7 +338,7 @@ static int vb2_vmalloc_dmabuf_ops_mmap(struct dma_buf *dbuf,
return vb2_vmalloc_mmap(dbuf->priv, vma);
}
static struct dma_buf_ops vb2_vmalloc_dmabuf_ops = {
static const struct dma_buf_ops vb2_vmalloc_dmabuf_ops = {
.attach = vb2_vmalloc_dmabuf_ops_attach,
.detach = vb2_vmalloc_dmabuf_ops_detach,
.map_dma_buf = vb2_vmalloc_dmabuf_ops_map,