[PATCH 3/3] drm/ttm: drop sysfs directory

[Daniel Vetter]

On Thu, Jan 28, 2021 at 02:16:04PM +0100, Christian König wrote:
> Not used any more.
> 
> Signed-off-by: Christian König <christian.koenig at amd.com>

Reviewed-by: Daniel Vetter <daniel.vetter at ffwll.ch>

> ---
>  drivers/gpu/drm/ttm/ttm_module.c | 50 --------------------------------
>  drivers/gpu/drm/ttm/ttm_module.h |  2 --
>  2 files changed, 52 deletions(-)
> 
> diff --git a/drivers/gpu/drm/ttm/ttm_module.c b/drivers/gpu/drm/ttm/ttm_module.c
> index f6566603a60f..56b0efdba1a9 100644
> --- a/drivers/gpu/drm/ttm/ttm_module.c
> +++ b/drivers/gpu/drm/ttm/ttm_module.c
> @@ -37,66 +37,16 @@
>  
>  #include "ttm_module.h"
>  
> -static DECLARE_WAIT_QUEUE_HEAD(exit_q);
> -static atomic_t device_released;
>  struct dentry *ttm_debugfs_root;
>  
> -static struct device_type ttm_drm_class_type = {
> -	.name = "ttm",
> -	/**
> -	 * Add pm ops here.
> -	 */
> -};
> -
> -static void ttm_drm_class_device_release(struct device *dev)
> -{
> -	atomic_set(&device_released, 1);
> -	wake_up_all(&exit_q);
> -}
> -
> -static struct device ttm_drm_class_device = {
> -	.type = &ttm_drm_class_type,
> -	.release = &ttm_drm_class_device_release
> -};
> -
> -struct kobject *ttm_get_kobj(void)
> -{
> -	struct kobject *kobj = &ttm_drm_class_device.kobj;
> -	BUG_ON(kobj == NULL);
> -	return kobj;
> -}
> -
>  static int __init ttm_init(void)
>  {
> -	int ret;
> -
> -	ret = dev_set_name(&ttm_drm_class_device, "ttm");
> -	if (unlikely(ret != 0))
> -		return ret;
> -
> -	atomic_set(&device_released, 0);
> -	ret = drm_class_device_register(&ttm_drm_class_device);
> -	if (unlikely(ret != 0))
> -		goto out_no_dev_reg;
> -
>  	ttm_debugfs_root = debugfs_create_dir("ttm", NULL);
>  	return 0;
> -out_no_dev_reg:
> -	atomic_set(&device_released, 1);
> -	wake_up_all(&exit_q);
> -	return ret;
>  }
>  
>  static void __exit ttm_exit(void)
>  {
> -	drm_class_device_unregister(&ttm_drm_class_device);
> -
> -	/**
> -	 * Refuse to unload until the TTM device is released.
> -	 * Not sure this is 100% needed.
> -	 */
> -
> -	wait_event(exit_q, atomic_read(&device_released) == 1);
>  	debugfs_remove(ttm_debugfs_root);
>  }
>  
> diff --git a/drivers/gpu/drm/ttm/ttm_module.h b/drivers/gpu/drm/ttm/ttm_module.h
> index 2f03c2fcf570..d7cac5d4b835 100644
> --- a/drivers/gpu/drm/ttm/ttm_module.h
> +++ b/drivers/gpu/drm/ttm/ttm_module.h
> @@ -33,10 +33,8 @@
>  
>  #define TTM_PFX "[TTM] "
>  
> -struct kobject;
>  struct dentry;
>  
> -extern struct kobject *ttm_get_kobj(void);
>  extern struct dentry *ttm_debugfs_root;
>  
>  #endif /* _TTM_MODULE_H_ */
> -- 
> 2.25.1
> 

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch