From 4d7aa5e9911c47cb40b0a5ed1b192ff50f4d6832 Mon Sep 17 00:00:00 2001 From: Bhumika Goyal Date: Tue, 13 Dec 2016 15:26:13 -0200 Subject: [PATCH] [media] drivers: media: i2c: ak881x: constify v4l2_subdev_* structures 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 used) @r1 disable optional_qualifier @ identifier i; position p; @@ static struct v4l2_subdev_video_ops i@p = {...}; @ok1@ identifier r1.i; position p; struct v4l2_subdev_ops obj; @@ obj.video=&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_video_ops i; File size before: text data bss dec hex filename 1809 872 0 2681 a79 drivers/media/i2c/ak881x.o File size after: text data bss dec hex filename 2185 496 0 2681 a79 drivers/media/i2c/ak881x.o Signed-off-by: Bhumika Goyal Signed-off-by: Mauro Carvalho Chehab --- drivers/media/i2c/ak881x.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/media/i2c/ak881x.c b/drivers/media/i2c/ak881x.c index 3a795dcb7d8e..16682c8477d1 100644 --- a/drivers/media/i2c/ak881x.c +++ b/drivers/media/i2c/ak881x.c @@ -205,14 +205,14 @@ static int ak881x_s_stream(struct v4l2_subdev *sd, int enable) return 0; } -static struct v4l2_subdev_core_ops ak881x_subdev_core_ops = { +static const struct v4l2_subdev_core_ops ak881x_subdev_core_ops = { #ifdef CONFIG_VIDEO_ADV_DEBUG .g_register = ak881x_g_register, .s_register = ak881x_s_register, #endif }; -static struct v4l2_subdev_video_ops ak881x_subdev_video_ops = { +static const struct v4l2_subdev_video_ops ak881x_subdev_video_ops = { .s_std_output = ak881x_s_std_output, .s_stream = ak881x_s_stream, }; @@ -224,7 +224,7 @@ static const struct v4l2_subdev_pad_ops ak881x_subdev_pad_ops = { .get_fmt = ak881x_fill_fmt, }; -static struct v4l2_subdev_ops ak881x_subdev_ops = { +static const struct v4l2_subdev_ops ak881x_subdev_ops = { .core = &ak881x_subdev_core_ops, .video = &ak881x_subdev_video_ops, .pad = &ak881x_subdev_pad_ops,