summary refs log tree commit diff
path: root/drivers/iio
diff options
context:
space:
mode:
authorsimran singhal <singhalsimran0@gmail.com>2017-03-31 00:10:38 +0530
committerJonathan Cameron <jic23@kernel.org>2017-04-02 09:08:55 +0100
commit98b6d2b6764d75e386ce3236d771a7624a645e07 (patch)
treeab18735c8a1e48c2ff97176ccab44c68fd960e7d /drivers/iio
parent573803234e72d182ec39692770110e574cd5b222 (diff)
downloadlinux-98b6d2b6764d75e386ce3236d771a7624a645e07.tar.gz
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;

As the attrs field of iio_info structures is also constant, so these
attribute_group structures can also be declared constant. Done manually.

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
   5926	   2248	      0	   8174	   1fee	drivers/iio/light/lm3533-als.o

Signed-off-by: simran singhal <singhalsimran0@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'drivers/iio')
-rw-r--r--drivers/iio/light/lm3533-als.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/iio/light/lm3533-als.c b/drivers/iio/light/lm3533-als.c
index f409c2047c05..0443fd2e8757 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
 };
 
@@ -714,7 +714,7 @@ static struct attribute *lm3533_als_attributes[] = {
 	NULL
 };
 
-static struct attribute_group lm3533_als_attribute_group = {
+static const struct attribute_group lm3533_als_attribute_group = {
 	.attrs = lm3533_als_attributes
 };