* [PATCH] media: platform: s3c-camif: constify v4l2_subdev_ops structures
@ 2016-12-14 11:11 ` Bhumika Goyal
2016-12-15 10:34 ` Sylwester Nawrocki
0 siblings, 1 reply; 2+ messages in thread
From: Bhumika Goyal @ 2016-12-14 11:11 UTC (permalink / raw)
To: julia.lawall, sylvester.nawrocki, mchehab, linux-media,
linux-samsung-soc, linux-kernel
Cc: Bhumika Goyal
Check for v4l2_subdev_ops structures that are only passed as an
argument to the function v4l2_subdev_init. This argument is of type
const, so v4l2_subdev_ops structures having this property can also be
declared const.
Done using Coccinelle:
@r1 disable optional_qualifier @
identifier i;
position p;
@@
static struct v4l2_subdev_ops i@p = {...};
@ok1@
identifier r1.i;
position p;
@@
v4l2_subdev_init(...,&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_ops i;
File size before:
text data bss dec hex filename
17171 1912 20 19103 4a9f
platform/s3c-camif/camif-capture.o
File size after:
text data bss dec hex filename
17235 1848 20 19103 4a9f
platform/s3c-camif/camif-capture.o
Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
---
drivers/media/platform/s3c-camif/camif-capture.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/media/platform/s3c-camif/camif-capture.c b/drivers/media/platform/s3c-camif/camif-capture.c
index 0413a86..6125e72 100644
--- a/drivers/media/platform/s3c-camif/camif-capture.c
+++ b/drivers/media/platform/s3c-camif/camif-capture.c
@@ -1488,7 +1488,7 @@ static int s3c_camif_subdev_set_selection(struct v4l2_subdev *sd,
.set_fmt = s3c_camif_subdev_set_fmt,
};
-static struct v4l2_subdev_ops s3c_camif_subdev_ops = {
+static const struct v4l2_subdev_ops s3c_camif_subdev_ops = {
.pad = &s3c_camif_subdev_pad_ops,
};
--
1.9.1
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