Hi Arvind,

On 2017-07-01 13:37, Arvind Yadav wrote:
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...@gmail.com>

Acked-by: Marek Szyprowski <m.szyprow...@samsung.com>

---
  drivers/media/v4l2-core/videobuf2-vmalloc.c | 2 +-
  1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/v4l2-core/videobuf2-vmalloc.c 
b/drivers/media/v4l2-core/videobuf2-vmalloc.c
index b337d78..6bc130f 100644
--- a/drivers/media/v4l2-core/videobuf2-vmalloc.c
+++ b/drivers/media/v4l2-core/videobuf2-vmalloc.c
@@ -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,

Best regards
--
Marek Szyprowski, PhD
Samsung R&D Institute Poland

Reply via email to