From: Thierry Reding <thierry.reding@gmail.com>
Date: Thu, 12 Dec 2013 14:44:04 +0000 (+0100)
Subject: drm: Implement dummies for debugfs helpers
X-Git-Tag: firefly_0821_release~176^2~4523^2~82
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=66ee52e284a6cb387a7b28e29e8282da253efc97;p=firefly-linux-kernel-4.4.55.git

drm: Implement dummies for debugfs helpers

In case where debugfs support is disabled, define dummy functions to
avoid the need for #ifdefery in drivers.

Based on an earlier patch by Arnd Bergmann.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---

diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index bc07c7af0f6e..8f916d03a638 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -1478,6 +1478,30 @@ extern int drm_debugfs_create_files(const struct drm_info_list *files,
 extern int drm_debugfs_remove_files(const struct drm_info_list *files,
 				    int count, struct drm_minor *minor);
 extern int drm_debugfs_cleanup(struct drm_minor *minor);
+#else
+static inline int drm_debugfs_init(struct drm_minor *minor, int minor_id,
+				   struct dentry *root)
+{
+	return 0;
+}
+
+static inline int drm_debugfs_create_files(const struct drm_info_list *files,
+					   int count, struct dentry *root,
+					   struct drm_minor *minor)
+{
+	return 0;
+}
+
+static inline int drm_debugfs_remove_files(const struct drm_info_list *files,
+					   int count, struct drm_minor *minor)
+{
+	return 0;
+}
+
+static inline int drm_debugfs_cleanup(struct drm_minor *minor)
+{
+	return 0;
+}
 #endif
 
 				/* Info file support */