drm/msm: Remove drm_debugfs_remove_files() calls

drm_debugfs_cleanup() now removes all minor->debugfs_list entries
automatically, so it's not necessary to call
drm_debugfs_remove_files(). Additionally it uses
debugfs_remove_recursive() to clean up the debugfs files, so no need
to do that.

Cc: robdclark@gmail.com
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170126225621.12314-10-noralf@tronnes.org

drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c

@@ -214,12 +214,6 @@ static int mdp5_kms_debugfs_init(struct msm_kms *kms, struct drm_minor *minor)
 
 	return 0;
 }
-
-static void mdp5_kms_debugfs_cleanup(struct msm_kms *kms, struct drm_minor *minor)
-{
-	drm_debugfs_remove_files(mdp5_debugfs_list,
-			ARRAY_SIZE(mdp5_debugfs_list), minor);
-}
 #endif
 
 static const struct mdp_kms_funcs kms_funcs = {
@@ -242,7 +236,6 @@ static const struct mdp_kms_funcs kms_funcs = {
 		.destroy         = mdp5_kms_destroy,
 #ifdef CONFIG_DEBUG_FS
 		.debugfs_init    = mdp5_kms_debugfs_init,
-		.debugfs_cleanup = mdp5_kms_debugfs_cleanup,
 #endif
 	},
 	.set_irqmask         = mdp5_set_irqmask,

drivers/gpu/drm/msm/msm_debugfs.c

@@ -170,8 +170,6 @@ void msm_debugfs_cleanup(struct drm_minor *minor)
 	struct drm_device *dev = minor->dev;
 	struct msm_drm_private *priv = dev->dev_private;
 
-	drm_debugfs_remove_files(msm_debugfs_list,
-			ARRAY_SIZE(msm_debugfs_list), minor);
 	if (!priv)
 		return;
 

drivers/gpu/drm/msm/msm_perf.c

@@ -41,9 +41,6 @@ struct msm_perf_state {
 	int buftot, bufpos;
 
 	unsigned long next_jiffies;
-
-	struct dentry *ent;
-	struct drm_info_node *node;
 };
 
 #define SAMPLE_TIME (HZ/4)
@@ -208,6 +205,7 @@ int msm_perf_debugfs_init(struct drm_minor *minor)
 {
 	struct msm_drm_private *priv = minor->dev->dev_private;
 	struct msm_perf_state *perf;
+	struct dentry *ent;
 
 	/* only create on first minor: */
 	if (priv->perf)
@@ -222,26 +220,14 @@ int msm_perf_debugfs_init(struct drm_minor *minor)
 	mutex_init(&perf->read_lock);
 	priv->perf = perf;
 
-	perf->node = kzalloc(sizeof(*perf->node), GFP_KERNEL);
-	if (!perf->node)
-		goto fail;
-
-	perf->ent = debugfs_create_file("perf", S_IFREG | S_IRUGO,
+	ent = debugfs_create_file("perf", S_IFREG | S_IRUGO,
 			minor->debugfs_root, perf, &perf_debugfs_fops);
-	if (!perf->ent) {
+	if (!ent) {
 		DRM_ERROR("Cannot create /sys/kernel/debug/dri/%pd/perf\n",
 				minor->debugfs_root);
 		goto fail;
 	}
 
-	perf->node->minor = minor;
-	perf->node->dent  = perf->ent;
-	perf->node->info_ent = NULL;
-
-	mutex_lock(&minor->debugfs_lock);
-	list_add(&perf->node->list, &minor->debugfs_list);
-	mutex_unlock(&minor->debugfs_lock);
-
 	return 0;
 
 fail:
@@ -259,15 +245,6 @@ void msm_perf_debugfs_cleanup(struct drm_minor *minor)
 
 	priv->perf = NULL;
 
-	debugfs_remove(perf->ent);
-
-	if (perf->node) {
-		mutex_lock(&minor->debugfs_lock);
-		list_del(&perf->node->list);
-		mutex_unlock(&minor->debugfs_lock);
-		kfree(perf->node);
-	}
-
 	mutex_destroy(&perf->read_lock);
 
 	kfree(perf);

drivers/gpu/drm/msm/msm_rd.c

@@ -84,9 +84,6 @@ struct msm_rd_state {
 
 	bool open;
 
-	struct dentry *ent;
-	struct drm_info_node *node;
-
 	/* current submit to read out: */
 	struct msm_gem_submit *submit;
 
@@ -219,6 +216,7 @@ int msm_rd_debugfs_init(struct drm_minor *minor)
 {
 	struct msm_drm_private *priv = minor->dev->dev_private;
 	struct msm_rd_state *rd;
+	struct dentry *ent;
 
 	/* only create on first minor: */
 	if (priv->rd)
@@ -236,26 +234,14 @@ int msm_rd_debugfs_init(struct drm_minor *minor)
 
 	init_waitqueue_head(&rd->fifo_event);
 
-	rd->node = kzalloc(sizeof(*rd->node), GFP_KERNEL);
-	if (!rd->node)
-		goto fail;
-
-	rd->ent = debugfs_create_file("rd", S_IFREG | S_IRUGO,
+	ent = debugfs_create_file("rd", S_IFREG | S_IRUGO,
 			minor->debugfs_root, rd, &rd_debugfs_fops);
-	if (!rd->ent) {
+	if (!ent) {
 		DRM_ERROR("Cannot create /sys/kernel/debug/dri/%pd/rd\n",
 				minor->debugfs_root);
 		goto fail;
 	}
 
-	rd->node->minor = minor;
-	rd->node->dent  = rd->ent;
-	rd->node->info_ent = NULL;
-
-	mutex_lock(&minor->debugfs_lock);
-	list_add(&rd->node->list, &minor->debugfs_list);
-	mutex_unlock(&minor->debugfs_lock);
-
 	return 0;
 
 fail:
@@ -272,18 +258,7 @@ void msm_rd_debugfs_cleanup(struct drm_minor *minor)
 		return;
 
 	priv->rd = NULL;
-
-	debugfs_remove(rd->ent);
-
-	if (rd->node) {
-		mutex_lock(&minor->debugfs_lock);
-		list_del(&rd->node->list);
-		mutex_unlock(&minor->debugfs_lock);
-		kfree(rd->node);
-	}
-
 	mutex_destroy(&rd->read_lock);
-
 	kfree(rd);
 }