media: V4L2: platform: rcar_jpu: constify v4l2_m2m_ops structures

The v4l2_m2m_ops structures are only passed as the only
argument to v4l2_m2m_init, which is declared as const.
Thus the v4l2_m2m_ops structures themselves can be const.

Done with the help of Coccinelle.

// <smpl>
@r disable optional_qualifier@
identifier i;
position p;
@@
static struct v4l2_m2m_ops i@p = { ... };

@ok1@
identifier r.i;
position p;
@@
v4l2_m2m_init(&i@p)

@bad@
position p != {r.p,ok1.p};
identifier r.i;
struct v4l2_m2m_ops e;
@@
e@i@p

@depends on !bad disable optional_qualifier@
identifier r.i;
@@
static
+const
 struct v4l2_m2m_ops i = { ... };
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Acked-by: Ulyanov Mikhail <mikhail.ulyanov@cogentembedded.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

diff --git a/drivers/media/platform/rcar_jpu.c b/drivers/media/platform/rcar_jpu.c
index d1746ecc645de87d50cde9745fb2f9e154900550..070bac36d766891dabeb01e1f1bf064eb989de58 100644 (file)
--- a/drivers/media/platform/rcar_jpu.c
+++ b/drivers/media/platform/rcar_jpu.c
@@ -1506,7 +1506,7 @@ static void jpu_job_abort(void *priv)
                jpu_cleanup(ctx, true);
 }
 
-static struct v4l2_m2m_ops jpu_m2m_ops = {
+static const struct v4l2_m2m_ops jpu_m2m_ops = {
        .device_run     = jpu_device_run,
        .job_ready      = jpu_job_ready,
        .job_abort      = jpu_job_abort,