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7c137c601b
v4l2_subdev_{core/pad/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:
text data bss dec hex filename
7810 736 16 8562 2172 drivers/media/i2c/mt9p031.o
9652 736 24 10412 28ac drivers/media/i2c/mt9v032.o
4613 552 20 5185 1441 drivers/media/i2c/noon010pc30.o
2615 552 8 3175 c67 drivers/media/i2c/s5k6a3.o
File sizes after:
text data bss dec hex filename
8322 232 16 8570 217a drivers/media/i2c/mt9p031.o
10164 232 24 10420 28b4 drivers/media/i2c/mt9v032.o
4933 232 20 5185 1441 drivers/media/i2c/noon010pc30.o
2935 232 8 3175 c67 drivers/media/i2c/s5k6a3.o
Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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.