[PATCH] UIO: use default_groups in kobj_type

From: Greg Kroah-Hartman
Date: Tue Dec 28 2021 - 08:13:32 EST


There are currently 2 ways to create a set of sysfs files for a
kobj_type, through the default_attrs field, and the default_groups
field. Move the UIO code to use default_groups field which has been the
preferred way since aa30f47cf666 ("kobject: Add support for default
attribute groups to kobj_type") so that we can soon get rid of the
obsolete default_attrs field.

Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/uio/uio.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/uio/uio.c b/drivers/uio/uio.c
index ea96e319c8a0..43afbb7c5ab9 100644
--- a/drivers/uio/uio.c
+++ b/drivers/uio/uio.c
@@ -83,13 +83,14 @@ static struct map_sysfs_entry size_attribute =
static struct map_sysfs_entry offset_attribute =
__ATTR(offset, S_IRUGO, map_offset_show, NULL);

-static struct attribute *attrs[] = {
+static struct attribute *map_attrs[] = {
&name_attribute.attr,
&addr_attribute.attr,
&size_attribute.attr,
&offset_attribute.attr,
NULL, /* need to NULL terminate the list of attributes */
};
+ATTRIBUTE_GROUPS(map);

static void map_release(struct kobject *kobj)
{
@@ -119,7 +120,7 @@ static const struct sysfs_ops map_sysfs_ops = {
static struct kobj_type map_attr_type = {
.release = map_release,
.sysfs_ops = &map_sysfs_ops,
- .default_attrs = attrs,
+ .default_groups = map_groups,
};

struct uio_portio {
@@ -178,6 +179,7 @@ static struct attribute *portio_attrs[] = {
&portio_porttype_attribute.attr,
NULL,
};
+ATTRIBUTE_GROUPS(portio);

static void portio_release(struct kobject *kobj)
{
@@ -207,7 +209,7 @@ static const struct sysfs_ops portio_sysfs_ops = {
static struct kobj_type portio_attr_type = {
.release = portio_release,
.sysfs_ops = &portio_sysfs_ops,
- .default_attrs = portio_attrs,
+ .default_groups = portio_groups,
};

static ssize_t name_show(struct device *dev,
--
2.34.1