lkml.org 
[lkml]   [2017]   [Mar]   [28]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[PATCH] iio: light: lm3533-als: 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
5798 2376 0 8174 1fee drivers/iio/light/lm3533-als.o

File size after:
text data bss dec hex filename
5862 2312 0 8174 1fee drivers/iio/light/lm3533-als.o

Signed-off-by: simran singhal <singhalsimran0@gmail.com>
---
drivers/iio/light/lm3533-als.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iio/light/lm3533-als.c b/drivers/iio/light/lm3533-als.c
index f409c20..0bcc843 100644
--- a/drivers/iio/light/lm3533-als.c
+++ b/drivers/iio/light/lm3533-als.c
@@ -690,7 +690,7 @@ static struct attribute *lm3533_als_event_attributes[] = {
NULL
};

-static struct attribute_group lm3533_als_event_attribute_group = {
+static const struct attribute_group lm3533_als_event_attribute_group = {
.attrs = lm3533_als_event_attributes
};

--
2.7.4
\
 
 \ /
  Last update: 2017-03-28 22:27    [W:0.027 / U:0.068 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site