[PATCH 2/6] configfs: Constify is_visible/is_visible_bin in configfs_group_operations

These callbacks are never meant to modify their configfs_attribute
structure. Enforce this in the type system.

As there are only two implementers of these callbacks, adapt them right
away, avoiding a phased transition.

Signed-off-by: Thomas Weißschuh <[email protected]>
---
 drivers/gpu/drm/xe/xe_configfs.c | 4 ++--
 drivers/virt/coco/guest/report.c | 4 ++--
 include/linux/configfs.h         | 4 ++--
 3 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/xe/xe_configfs.c b/drivers/gpu/drm/xe/xe_configfs.c
index 32102600a148..a5f696e7b329 100644
--- a/drivers/gpu/drm/xe/xe_configfs.c
+++ b/drivers/gpu/drm/xe/xe_configfs.c
@@ -843,7 +843,7 @@ static struct configfs_item_operations xe_config_device_ops = {
 };
 
 static bool xe_config_device_is_visible(struct config_item *item,
-					struct configfs_attribute *attr, int n)
+					const struct configfs_attribute *attr, int n)
 {
 	struct xe_config_group_device *dev = to_xe_config_group_device(item);
 
@@ -938,7 +938,7 @@ static struct configfs_attribute *xe_config_sriov_attrs[] = {
 };
 
 static bool xe_config_sriov_is_visible(struct config_item *item,
-				       struct configfs_attribute *attr, int n)
+				       const struct configfs_attribute *attr, int n)
 {
 	struct xe_config_group_device *dev = to_xe_config_group_device(item->ci_parent);
 
diff --git a/drivers/virt/coco/guest/report.c b/drivers/virt/coco/guest/report.c
index b254a1416286..96e89ddf4989 100644
--- a/drivers/virt/coco/guest/report.c
+++ b/drivers/virt/coco/guest/report.c
@@ -381,7 +381,7 @@ static struct configfs_item_operations tsm_report_item_ops = {
 };
 
 static bool tsm_report_is_visible(struct config_item *item,
-				  struct configfs_attribute *attr, int n)
+				  const struct configfs_attribute *attr, int n)
 {
 	guard(rwsem_read)(&tsm_rwsem);
 	if (!provider.ops)
@@ -394,7 +394,7 @@ static bool tsm_report_is_visible(struct config_item *item,
 }
 
 static bool tsm_report_is_bin_visible(struct config_item *item,
-				      struct configfs_bin_attribute *attr, int n)
+				      const struct configfs_bin_attribute *attr, int n)
 {
 	guard(rwsem_read)(&tsm_rwsem);
 	if (!provider.ops)
diff --git a/include/linux/configfs.h b/include/linux/configfs.h
index ef65c75beeaa..5d3fc8822a1d 100644
--- a/include/linux/configfs.h
+++ b/include/linux/configfs.h
@@ -220,8 +220,8 @@ struct configfs_group_operations {
 	struct config_group *(*make_group)(struct config_group *group, const char *name);
 	void (*disconnect_notify)(struct config_group *group, struct config_item *item);
 	void (*drop_item)(struct config_group *group, struct config_item *item);
-	bool (*is_visible)(struct config_item *item, struct configfs_attribute *attr, int n);
-	bool (*is_bin_visible)(struct config_item *item, struct configfs_bin_attribute *attr,
+	bool (*is_visible)(struct config_item *item, const struct configfs_attribute *attr, int n);
+	bool (*is_bin_visible)(struct config_item *item, const struct configfs_bin_attribute *attr,
 			       int n);
 };
 

-- 
2.55.0