[PATCH 02/13] drm/debugfs: Create helper to create debugfs files from list

[Maíra Canal]

Create a helper to encapsulate the code that creates a new debugfs file
from a linked list related to an object. Moreover, the helper also provides
more flexibily on the type of the object.

Signed-off-by: Maíra Canal <mcanal at igalia.com>
---
 drivers/gpu/drm/drm_debugfs.c | 22 ++++++++++++----------
 1 file changed, 12 insertions(+), 10 deletions(-)

diff --git a/drivers/gpu/drm/drm_debugfs.c b/drivers/gpu/drm/drm_debugfs.c
index 255d2068ac16..23f6ed7b5d68 100644
--- a/drivers/gpu/drm/drm_debugfs.c
+++ b/drivers/gpu/drm/drm_debugfs.c
@@ -218,6 +218,16 @@ void drm_debugfs_create_files(const struct drm_info_list *files, int count,
 }
 EXPORT_SYMBOL(drm_debugfs_create_files);
 
+#define drm_create_file_from_list(component) do {					\
+		list_for_each_entry_safe(entry, tmp, &(component)->debugfs_list,	\
+					 list) {					\
+			debugfs_create_file(entry->file.name, 0444,			\
+					    minor->debugfs_root, entry,			\
+					    &drm_debugfs_entry_fops);			\
+			list_del(&entry->list);						\
+		}									\
+	} while (0)
+
 int drm_debugfs_init(struct drm_minor *minor, int minor_id,
 		     struct dentry *root)
 {
@@ -245,11 +255,7 @@ int drm_debugfs_init(struct drm_minor *minor, int minor_id,
 	if (dev->driver->debugfs_init)
 		dev->driver->debugfs_init(minor);
 
-	list_for_each_entry_safe(entry, tmp, &dev->debugfs_list, list) {
-		debugfs_create_file(entry->file.name, 0444,
-				    minor->debugfs_root, entry, &drm_debugfs_entry_fops);
-		list_del(&entry->list);
-	}
+	drm_create_file_from_list(dev);
 
 	return 0;
 }
@@ -262,11 +268,7 @@ void drm_debugfs_late_register(struct drm_device *dev)
 	if (!minor)
 		return;
 
-	list_for_each_entry_safe(entry, tmp, &dev->debugfs_list, list) {
-		debugfs_create_file(entry->file.name, 0444,
-				    minor->debugfs_root, entry, &drm_debugfs_entry_fops);
-		list_del(&entry->list);
-	}
+	drm_create_file_from_list(dev);
 }
 
 int drm_debugfs_remove_files(const struct drm_info_list *files, int count,
-- 
2.39.0