These vb2_ops structures are only stored in the ops field of a
vb2_queue structure, which is declared as const.  Thus the vb2_ops
structures themselves can be const.

Done with the help of Coccinelle.

// <smpl>
@r disable optional_qualifier@
identifier i;
position p;
@@
static struct vb2_ops i@p = { ... };

@ok@
identifier r.i;
struct vb2_queue e;
position p;
@@
e.ops = &i@p;

@bad@
position p != {r.p,ok.p};
identifier r.i;
struct vb2_ops e;
@@
e@i@p

@depends on !bad disable optional_qualifier@
identifier r.i;
@@
static
+const
 struct vb2_ops i = { ... };
// </smpl>

Signed-off-by: Julia Lawall <julia.law...@lip6.fr>

---
 drivers/staging/media/davinci_vpfe/vpfe_video.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/media/davinci_vpfe/vpfe_video.c 
b/drivers/staging/media/davinci_vpfe/vpfe_video.c
index 8b2117e..155e8c7 100644
--- a/drivers/staging/media/davinci_vpfe/vpfe_video.c
+++ b/drivers/staging/media/davinci_vpfe/vpfe_video.c
@@ -1304,7 +1304,7 @@ static void vpfe_buf_cleanup(struct vb2_buffer *vb)
                list_del_init(&buf->list);
 }
 
-static struct vb2_ops video_qops = {
+static const struct vb2_ops video_qops = {
        .queue_setup            = vpfe_buffer_queue_setup,
        .buf_init               = vpfe_buffer_init,
        .buf_prepare            = vpfe_buffer_prepare,

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