[PATCH] media: platform: soc_camera_platform : constify v4l2_subdev_* structures
From: Bhumika Goyal
Date: Mon Dec 12 2016 - 03:10:16 EST
v4l2_subdev_{core/video}_ops structures are stored in the
fields of the v4l2_subdev_ops structure which are of type const.
Also, v4l2_subdev_ops structure is passed to a function
having its argument of type const. As these structures are never
modified, so declare them as const.
Done using Coccinelle:(One of the scripts)
@r1 disable optional_qualifier @
identifier i;
position p;
@@
static struct v4l2_subdev_core_ops i@p = {...};
@ok1@
identifier r1.i;
position p;
struct v4l2_subdev_ops obj;
@@
obj.core=&i@p;
@bad@
position p!={r1.p,ok1.p};
identifier r1.i;
@@
i@p
@depends on !bad disable optional_qualifier@
identifier r1.i;
@@
+const
struct v4l2_subdev_core_ops i;
File size before:
text data bss dec hex filename
858 576 0 1434 59a soc_camera/soc_camera_platform.o
File size after:
text data bss dec hex filename
1234 192 0 1426 592 soc_camera/soc_camera_platform.o
Signed-off-by: Bhumika Goyal <bhumirks@xxxxxxxxx>
---
drivers/media/platform/soc_camera/soc_camera_platform.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/media/platform/soc_camera/soc_camera_platform.c b/drivers/media/platform/soc_camera/soc_camera_platform.c
index 534d6c3..cb4986b 100644
--- a/drivers/media/platform/soc_camera/soc_camera_platform.c
+++ b/drivers/media/platform/soc_camera/soc_camera_platform.c
@@ -59,7 +59,7 @@ static int soc_camera_platform_s_power(struct v4l2_subdev *sd, int on)
return soc_camera_set_power(p->icd->control, &p->icd->sdesc->subdev_desc, NULL, on);
}
-static struct v4l2_subdev_core_ops platform_subdev_core_ops = {
+static const struct v4l2_subdev_core_ops platform_subdev_core_ops = {
.s_power = soc_camera_platform_s_power,
};
@@ -110,7 +110,7 @@ static int soc_camera_platform_g_mbus_config(struct v4l2_subdev *sd,
return 0;
}
-static struct v4l2_subdev_video_ops platform_subdev_video_ops = {
+static const struct v4l2_subdev_video_ops platform_subdev_video_ops = {
.s_stream = soc_camera_platform_s_stream,
.g_mbus_config = soc_camera_platform_g_mbus_config,
};
@@ -122,7 +122,7 @@ static int soc_camera_platform_g_mbus_config(struct v4l2_subdev *sd,
.set_fmt = soc_camera_platform_fill_fmt,
};
-static struct v4l2_subdev_ops platform_subdev_ops = {
+static const struct v4l2_subdev_ops platform_subdev_ops = {
.core = &platform_subdev_core_ops,
.video = &platform_subdev_video_ops,
.pad = &platform_subdev_pad_ops,
--
1.9.1