efi: use default_groups in kobj_type

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 firmware efi sysfs code to use default_groups
field which has been the preferred way since aa30f47 ("kobject: Add
support for default attribute groups to kobj_type") so that we can soon
get rid of the obsolete default_attrs field.

Cc: Ard Biesheuvel <ardb@kernel.org>
Cc: linux-efi@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>

drivers/firmware/efi/efivars.c

@@ -352,11 +352,12 @@ static struct attribute *def_attrs[] = {
 	&efivar_attr_raw_var.attr,
 	NULL,
 };
+ATTRIBUTE_GROUPS(def);
 
 static struct kobj_type efivar_ktype = {
 	.release = efivar_release,
 	.sysfs_ops = &efivar_attr_ops,
-	.default_attrs = def_attrs,
+	.default_groups = def_groups,
 };
 
 static ssize_t efivar_create(struct file *filp, struct kobject *kobj,

drivers/firmware/efi/esrt.c

@@ -146,6 +146,8 @@ static struct attribute *esre1_attrs[] = {
 	&esre_last_attempt_status.attr,
 	NULL
 };
+ATTRIBUTE_GROUPS(esre1);
+
 static void esre_release(struct kobject *kobj)
 {
 	struct esre_entry *entry = to_entry(kobj);
@@ -157,7 +159,7 @@ static void esre_release(struct kobject *kobj)
 static struct kobj_type esre1_ktype = {
 	.release = esre_release,
 	.sysfs_ops = &esre_attr_ops,
-	.default_attrs = esre1_attrs,
+	.default_groups = esre1_groups,
 };
 
 

drivers/firmware/efi/runtime-map.c

@@ -79,6 +79,7 @@ static struct attribute *def_attrs[] = {
 	&map_attribute_attr.attr,
 	NULL
 };
+ATTRIBUTE_GROUPS(def);
 
 static const struct sysfs_ops map_attr_ops = {
 	.show = map_attr_show,
@@ -94,7 +95,7 @@ static void map_release(struct kobject *kobj)
 
 static struct kobj_type __refdata map_ktype = {
 	.sysfs_ops	= &map_attr_ops,
-	.default_attrs	= def_attrs,
+	.default_groups	= def_groups,
 	.release	= map_release,
 };