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Subject[PATCH] iio: adc: ad799x: 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
26051 464 0 26515 6793 drivers/iio/adc/ad799x.o

File size after:
text data bss dec hex filename
26115 400 0 26515 6793 drivers/iio/adc/ad799x.o

Signed-off-by: simran singhal <singhalsimran0@gmail.com>
---
drivers/iio/adc/ad799x.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iio/adc/ad799x.c b/drivers/iio/adc/ad799x.c
index 9704090..22426ae 100644
--- a/drivers/iio/adc/ad799x.c
+++ b/drivers/iio/adc/ad799x.c
@@ -520,7 +520,7 @@ static struct attribute *ad799x_event_attributes[] = {
NULL,
};

-static struct attribute_group ad799x_event_attrs_group = {
+static const struct attribute_group ad799x_event_attrs_group = {
.attrs = ad799x_event_attributes,
};

--
2.7.4
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