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6713c88fd0
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 sizes before and after the changes:
text data bss dec hex filename
3459 696 0 4155 103b /media/i2c/soc_camera/imx074.o
3835 320 0 4155 103b /media/i2c/soc_camera/imx074.o
4749 1048 8 5805 16ad /media/i2c/soc_camera/mt9m001.o
5133 672 8 5813 16b5 /media/i2c/soc_camera/mt9m001.o
5658 1112 8 6778 1a7a /media/i2c/soc_camera/mt9t031.o
6042 728 8 6778 1a7a /media/i2c/soc_camera/mt9t031.o
6726 784 0 7510 1d56 /media/i2c/soc_camera/mt9t112.o
7110 408 0 7518 1d5e /media/i2c/soc_camera/mt9t112.o
6700 960 16 7676 1dfc /media/i2c/soc_camera/mt9v022.o
7084 584 16 7684 1e04 /media/i2c/soc_camera/mt9v022.o
5569 1576 8 7153 1bf1 /media/i2c/soc_camera/ov2640.o
5953 1200 8 7161 1bf9 /media/i2c/soc_camera/ov2640.o
3018 2736 0 5754 167a /media/i2c/soc_camera/ov5642.o
3394 2352 0 5746 1672 /media/i2c/soc_camera/ov5642.o
8348 2104 8 10460 28dc /media/i2c/soc_camera/ov6650.o
8716 1728 8 10452 28d4 /media/i2c/soc_camera/ov6650.o
4165 696 8 4869 1305 /media/i2c/soc_camera/ov772x.o
4549 320 8 4877 130d /media/i2c/soc_camera/ov772x.o
4033 608 8 4649 1229 /media/i2c/soc_camera/ov9640.o
4417 232 8 4657 1231 /media/i2c/soc_camera/ov9640.o
4983 784 8 5775 168f /media/i2c/soc_camera/ov9740.o
5367 408 8 5783 1697 /media/i2c/soc_camera/ov9740.o
8578 1312 8 9898 26aa i2c/soc_camera/rj54n1cb0c.o
8962 936 8 9906 26b2 i2c/soc_camera/rj54n1cb0c.o
3886 696 0 4582 11e6 /media/i2c/soc_camera/tw9910.o
4270 320 0 4590 11ee /media/i2c/soc_camera/tw9910.o
Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.