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Subject[PATCH] iio: dac: ad5504: constify attribute_group structures
Check for attribute_group structures that are only stored in the
event_attrs filed of iio_info structure. As the event_attrs field of
iio_info structures is constant, so these attribute_group structures can
also be declared constant. Done using coccinelle:

@r1 disable optional_qualifier @
identifier i;
position p;
@@
static struct attribute_group i@p = {...};

@ok1@
identifier r1.i;
position p;
struct iio_info x;
@@
x.event_attrs=&i@p;

@bad@
position p!={r1.p,ok1.p};
identifier r1.i;
@@
i@p

@depends on !bad disable optional_qualifier@
identifier r1.i;
@@
static
+const
struct attribute_group i={...};

@depends on !bad disable optional_qualifier@
identifier r1.i;
@@
+const
struct attribute_group i;

File size before:
text data bss dec hex filename
3046 360 0 3406 d4e drivers/iio/dac/ad5504.o

File size after:
text data bss dec hex filename
3110 296 0 3406 d4e drivers/iio/dac/ad5504.o

Signed-off-by: simran singhal <singhalsimran0@gmail.com>
---
drivers/iio/dac/ad5504.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iio/dac/ad5504.c b/drivers/iio/dac/ad5504.c
index 788b3d6..22a027d 100644
--- a/drivers/iio/dac/ad5504.c
+++ b/drivers/iio/dac/ad5504.c
@@ -212,7 +212,7 @@ static struct attribute *ad5504_ev_attributes[] = {
NULL,
};

-static struct attribute_group ad5504_ev_attribute_group = {
+static const struct attribute_group ad5504_ev_attribute_group = {
.attrs = ad5504_ev_attributes,
};

--
2.7.4
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