linux-kernel - Re: [PATCH 04/21] drm/vram-helper: make drm_vram_mm_debugfs

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Message-ID: <b29cd545-7a42-54bd-cbc8-fb8610f60a1a@suse.de>
Date:   Fri, 28 Feb 2020 09:03:18 +0100
From:   Thomas Zimmermann <tzimmermann@...e.de>
To:     Wambui Karuga <wambui.karugax@...il.com>, daniel@...ll.ch,
        airlied@...ux.ie,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>
Cc:     gregkh@...uxfoundation.org, linux-kernel@...r.kernel.org,
        dri-devel@...ts.freedesktop.org
Subject: Re: [PATCH 04/21] drm/vram-helper: make drm_vram_mm_debugfs_init()
 return void

Hi

Am 27.02.20 um 13:02 schrieb Wambui Karuga:
> Since 987d65d01356 (drm: debugfs: make
> drm_debugfs_create_files() never fail), drm_debugfs_create_files() never
> fails and should return void. Therefore, remove its use as the
> return value of drm_vram_mm_debugfs_init(), and have the function
> declared as void instead.
> 
> Signed-off-by: Wambui Karuga <wambui.karugax@...il.com>

Reviewed-by: Thomas Zimmermann <tzimmermann@...e.de>

> ---
>  drivers/gpu/drm/drm_gem_vram_helper.c | 14 ++++----------
>  include/drm/drm_gem_vram_helper.h     |  2 +-
>  2 files changed, 5 insertions(+), 11 deletions(-)
> 
> diff --git a/drivers/gpu/drm/drm_gem_vram_helper.c b/drivers/gpu/drm/drm_gem_vram_helper.c
> index 92a11bb42365..76506bedac11 100644
> --- a/drivers/gpu/drm/drm_gem_vram_helper.c
> +++ b/drivers/gpu/drm/drm_gem_vram_helper.c
> @@ -1042,20 +1042,14 @@ static const struct drm_info_list drm_vram_mm_debugfs_list[] = {
>   *
>   * @minor: drm minor device.
>   *
> - * Returns:
> - * 0 on success, or
> - * a negative error code otherwise.
>   */
> -int drm_vram_mm_debugfs_init(struct drm_minor *minor)
> +void drm_vram_mm_debugfs_init(struct drm_minor *minor)
>  {
> -	int ret = 0;
> -
>  #if defined(CONFIG_DEBUG_FS)
> -	ret = drm_debugfs_create_files(drm_vram_mm_debugfs_list,
> -				       ARRAY_SIZE(drm_vram_mm_debugfs_list),
> -				       minor->debugfs_root, minor);
> +	drm_debugfs_create_files(drm_vram_mm_debugfs_list,
> +				 ARRAY_SIZE(drm_vram_mm_debugfs_list),
> +				 minor->debugfs_root, minor);
>  #endif
> -	return ret;
>  }
>  EXPORT_SYMBOL(drm_vram_mm_debugfs_init);
>  
> diff --git a/include/drm/drm_gem_vram_helper.h b/include/drm/drm_gem_vram_helper.h
> index 0f6e47213d8d..b63bcd1b996d 100644
> --- a/include/drm/drm_gem_vram_helper.h
> +++ b/include/drm/drm_gem_vram_helper.h
> @@ -196,7 +196,7 @@ static inline struct drm_vram_mm *drm_vram_mm_of_bdev(
>  	return container_of(bdev, struct drm_vram_mm, bdev);
>  }
>  
> -int drm_vram_mm_debugfs_init(struct drm_minor *minor);
> +void drm_vram_mm_debugfs_init(struct drm_minor *minor);
>  
>  /*
>   * Helpers for integration with struct drm_device
> 

-- 
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Felix Imendörffer



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