[PATCH 13/19] drm/sti: Remove drm_debugfs_remove_files() calls

Vincent ABRIOU vincent.abriou at st.com
Fri Jan 27 10:38:28 UTC 2017


Thank for this patch.
It is working fine with sti driver.

Acked-by: Vincent Abriou <vincent.abriou at st.com>
Tested-by: Vincent Abriou <vincent.abriou at st.com>

Vincent

On 01/26/2017 11:56 PM, Noralf Trønnes wrote:
> 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
> for adding fake drm_info_node entries.
>
> Cc: benjamin.gaignard at linaro.org
> Cc: vincent.abriou at st.com
> Signed-off-by: Noralf Trønnes <noralf at tronnes.org>
> ---
>  drivers/gpu/drm/sti/sti_drv.c   | 48 ++++++-----------------------------------
>  drivers/gpu/drm/sti/sti_dvo.c   | 10 ---------
>  drivers/gpu/drm/sti/sti_hda.c   | 11 ----------
>  drivers/gpu/drm/sti/sti_hdmi.c  | 11 ----------
>  drivers/gpu/drm/sti/sti_tvout.c |  8 -------
>  5 files changed, 6 insertions(+), 82 deletions(-)
>
> diff --git a/drivers/gpu/drm/sti/sti_drv.c b/drivers/gpu/drm/sti/sti_drv.c
> index ff71e25..d3db224 100644
> --- a/drivers/gpu/drm/sti/sti_drv.c
> +++ b/drivers/gpu/drm/sti/sti_drv.c
> @@ -89,38 +89,9 @@ static struct drm_info_list sti_drm_dbg_list[] = {
>  	{"fps_get", sti_drm_fps_dbg_show, 0},
>  };
>
> -static int sti_drm_debugfs_create(struct dentry *root,
> -				  struct drm_minor *minor,
> -				  const char *name,
> -				  const struct file_operations *fops)
> -{
> -	struct drm_device *dev = minor->dev;
> -	struct drm_info_node *node;
> -	struct dentry *ent;
> -
> -	ent = debugfs_create_file(name, S_IRUGO | S_IWUSR, root, dev, fops);
> -	if (IS_ERR(ent))
> -		return PTR_ERR(ent);
> -
> -	node = kmalloc(sizeof(*node), GFP_KERNEL);
> -	if (!node) {
> -		debugfs_remove(ent);
> -		return -ENOMEM;
> -	}
> -
> -	node->minor = minor;
> -	node->dent = ent;
> -	node->info_ent = (void *)fops;
> -
> -	mutex_lock(&minor->debugfs_lock);
> -	list_add(&node->list, &minor->debugfs_list);
> -	mutex_unlock(&minor->debugfs_lock);
> -
> -	return 0;
> -}
> -
>  static int sti_drm_dbg_init(struct drm_minor *minor)
>  {
> +	struct dentry *dentry;
>  	int ret;
>
>  	ret = drm_debugfs_create_files(sti_drm_dbg_list,
> @@ -129,10 +100,13 @@ static int sti_drm_dbg_init(struct drm_minor *minor)
>  	if (ret)
>  		goto err;
>
> -	ret = sti_drm_debugfs_create(minor->debugfs_root, minor, "fps_show",
> +	dentry = debugfs_create_file("fps_show", S_IRUGO | S_IWUSR,
> +				     minor->debugfs_root, minor->dev,
>  				     &sti_drm_fps_fops);
> -	if (ret)
> +	if (!dentry) {
> +		ret = -ENOMEM;
>  		goto err;
> +	}
>
>  	DRM_INFO("%s: debugfs installed\n", DRIVER_NAME);
>  	return 0;
> @@ -141,15 +115,6 @@ static int sti_drm_dbg_init(struct drm_minor *minor)
>  	return ret;
>  }
>
> -static void sti_drm_dbg_cleanup(struct drm_minor *minor)
> -{
> -	drm_debugfs_remove_files(sti_drm_dbg_list,
> -				 ARRAY_SIZE(sti_drm_dbg_list), minor);
> -
> -	drm_debugfs_remove_files((struct drm_info_list *)&sti_drm_fps_fops,
> -				 1, minor);
> -}
> -
>  static void sti_atomic_schedule(struct sti_private *private,
>  				struct drm_atomic_state *state)
>  {
> @@ -326,7 +291,6 @@ static struct drm_driver sti_driver = {
>  	.gem_prime_mmap = drm_gem_cma_prime_mmap,
>
>  	.debugfs_init = sti_drm_dbg_init,
> -	.debugfs_cleanup = sti_drm_dbg_cleanup,
>
>  	.name = DRIVER_NAME,
>  	.desc = DRIVER_DESC,
> diff --git a/drivers/gpu/drm/sti/sti_dvo.c b/drivers/gpu/drm/sti/sti_dvo.c
> index 411dc6e..bb23318 100644
> --- a/drivers/gpu/drm/sti/sti_dvo.c
> +++ b/drivers/gpu/drm/sti/sti_dvo.c
> @@ -195,13 +195,6 @@ static struct drm_info_list dvo_debugfs_files[] = {
>  	{ "dvo", dvo_dbg_show, 0, NULL },
>  };
>
> -static void dvo_debugfs_exit(struct sti_dvo *dvo, struct drm_minor *minor)
> -{
> -	drm_debugfs_remove_files(dvo_debugfs_files,
> -				 ARRAY_SIZE(dvo_debugfs_files),
> -				 minor);
> -}
> -
>  static int dvo_debugfs_init(struct sti_dvo *dvo, struct drm_minor *minor)
>  {
>  	unsigned int i;
> @@ -514,9 +507,6 @@ static void sti_dvo_unbind(struct device *dev,
>  			   struct device *master, void *data)
>  {
>  	struct sti_dvo *dvo = dev_get_drvdata(dev);
> -	struct drm_device *drm_dev = data;
> -
> -	dvo_debugfs_exit(dvo, drm_dev->primary);
>
>  	drm_bridge_remove(dvo->bridge);
>  }
> diff --git a/drivers/gpu/drm/sti/sti_hda.c b/drivers/gpu/drm/sti/sti_hda.c
> index 66d37d78..0c0a75b 100644
> --- a/drivers/gpu/drm/sti/sti_hda.c
> +++ b/drivers/gpu/drm/sti/sti_hda.c
> @@ -365,13 +365,6 @@ static struct drm_info_list hda_debugfs_files[] = {
>  	{ "hda", hda_dbg_show, 0, NULL },
>  };
>
> -static void hda_debugfs_exit(struct sti_hda *hda, struct drm_minor *minor)
> -{
> -	drm_debugfs_remove_files(hda_debugfs_files,
> -				 ARRAY_SIZE(hda_debugfs_files),
> -				 minor);
> -}
> -
>  static int hda_debugfs_init(struct sti_hda *hda, struct drm_minor *minor)
>  {
>  	unsigned int i;
> @@ -739,10 +732,6 @@ static int sti_hda_bind(struct device *dev, struct device *master, void *data)
>  static void sti_hda_unbind(struct device *dev,
>  		struct device *master, void *data)
>  {
> -	struct sti_hda *hda = dev_get_drvdata(dev);
> -	struct drm_device *drm_dev = data;
> -
> -	hda_debugfs_exit(hda, drm_dev->primary);
>  }
>
>  static const struct component_ops sti_hda_ops = {
> diff --git a/drivers/gpu/drm/sti/sti_hdmi.c b/drivers/gpu/drm/sti/sti_hdmi.c
> index f0af1ae..4a8bd62 100644
> --- a/drivers/gpu/drm/sti/sti_hdmi.c
> +++ b/drivers/gpu/drm/sti/sti_hdmi.c
> @@ -731,13 +731,6 @@ static struct drm_info_list hdmi_debugfs_files[] = {
>  	{ "hdmi", hdmi_dbg_show, 0, NULL },
>  };
>
> -static void hdmi_debugfs_exit(struct sti_hdmi *hdmi, struct drm_minor *minor)
> -{
> -	drm_debugfs_remove_files(hdmi_debugfs_files,
> -				 ARRAY_SIZE(hdmi_debugfs_files),
> -				 minor);
> -}
> -
>  static int hdmi_debugfs_init(struct sti_hdmi *hdmi, struct drm_minor *minor)
>  {
>  	unsigned int i;
> @@ -1359,10 +1352,6 @@ static int sti_hdmi_bind(struct device *dev, struct device *master, void *data)
>  static void sti_hdmi_unbind(struct device *dev,
>  		struct device *master, void *data)
>  {
> -	struct sti_hdmi *hdmi = dev_get_drvdata(dev);
> -	struct drm_device *drm_dev = data;
> -
> -	hdmi_debugfs_exit(hdmi, drm_dev->primary);
>  }
>
>  static const struct component_ops sti_hdmi_ops = {
> diff --git a/drivers/gpu/drm/sti/sti_tvout.c b/drivers/gpu/drm/sti/sti_tvout.c
> index ad46d35..8b8ea71 100644
> --- a/drivers/gpu/drm/sti/sti_tvout.c
> +++ b/drivers/gpu/drm/sti/sti_tvout.c
> @@ -567,13 +567,6 @@ static struct drm_info_list tvout_debugfs_files[] = {
>  	{ "tvout", tvout_dbg_show, 0, NULL },
>  };
>
> -static void tvout_debugfs_exit(struct sti_tvout *tvout, struct drm_minor *minor)
> -{
> -	drm_debugfs_remove_files(tvout_debugfs_files,
> -				 ARRAY_SIZE(tvout_debugfs_files),
> -				 minor);
> -}
> -
>  static int tvout_debugfs_init(struct sti_tvout *tvout, struct drm_minor *minor)
>  {
>  	unsigned int i;
> @@ -627,7 +620,6 @@ static void sti_tvout_early_unregister(struct drm_encoder *encoder)
>  	if (!tvout->debugfs_registered)
>  		return;
>
> -	tvout_debugfs_exit(tvout, encoder->dev->primary);
>  	tvout->debugfs_registered = false;
>  }
>
>


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