From: Julia Lawall <Julia.Lawall@lip6.fr>
Date: Sat, 5 Aug 2017 10:47:11 +0000 (-0400)
Subject: media: blackfin: bfin_capture: constify vb2_ops structures
X-Git-Tag: v4.14-rc1~113^2~303
X-Git-Url: http://git.samba.org/samba.git/?a=commitdiff_plain;h=ea3b08cdb1adf05cf3ab83deb6b6035c79c0d015;p=sfrench%2Fcifs-2.6.git

media: blackfin: bfin_capture: constify vb2_ops structures

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.Lawall@lip6.fr>
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/blackfin/bfin_capture.c b/drivers/media/platform/blackfin/bfin_capture.c
index 294d696c4a3b..41f179117fb0 100644
--- a/drivers/media/platform/blackfin/bfin_capture.c
+++ b/drivers/media/platform/blackfin/bfin_capture.c
@@ -375,7 +375,7 @@ static void bcap_stop_streaming(struct vb2_queue *vq)
 	}
 }
 
-static struct vb2_ops bcap_video_qops = {
+static const struct vb2_ops bcap_video_qops = {
 	.queue_setup            = bcap_queue_setup,
 	.buf_prepare            = bcap_buffer_prepare,
 	.buf_cleanup            = bcap_buffer_cleanup,