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soundwire: sysfs: Constiyf static struct attribute_group

Message ID 20210117220611.30921-1-rikard.falkeborn@gmail.com (mailing list archive)
State New, archived
Headers show
Series soundwire: sysfs: Constiyf static struct attribute_group | expand

Commit Message

Rikard Falkeborn Jan. 17, 2021, 10:06 p.m. UTC 
The only place sdw_slave_dev_attr_group is used is when its address is
passed to devm_device_add_group() which takes a pointer to const struct
attribute_group. Make it const to allow the compiler to put it in
read-only memory. This makes all attribute_group structs in the file
const. Done with the help of Coccinelle.

Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
---
 drivers/soundwire/sysfs_slave.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/drivers/soundwire/sysfs_slave.c b/drivers/soundwire/sysfs_slave.c
index b48b6617a396..3210359cd944 100644
--- a/drivers/soundwire/sysfs_slave.c
+++ b/drivers/soundwire/sysfs_slave.c
@@ -130,7 +130,7 @@  static struct attribute *slave_dev_attrs[] = {
  * we don't use ATTRIBUTES_GROUP here since we want to add a subdirectory
  * for device-level properties
  */
-static struct attribute_group sdw_slave_dev_attr_group = {
+static const struct attribute_group sdw_slave_dev_attr_group = {
 	.attrs	= slave_dev_attrs,
 	.name = "dev-properties",
 };