[PATCH] drm/shmem: Add docbook comments for drm_gem_shmem_object madvise fields

[Sean Paul]

On Fri, Nov 01, 2019 at 10:37:54AM -0500, Rob Herring wrote:
> Add missing docbook comments to madvise fields in struct
> drm_gem_shmem_object which fixes these warnings:
> 
> include/drm/drm_gem_shmem_helper.h:87: warning: Function parameter or member 'madv' not described in 'drm_gem_shmem_object'
> include/drm/drm_gem_shmem_helper.h:87: warning: Function parameter or member 'madv_list' not described in 'drm_gem_shmem_object'
> 
> Fixes: 17acb9f35ed7 ("drm/shmem: Add madvise state and purge helpers")
> Reported-by: Sean Paul <sean at poorly.run>
> Cc: Maarten Lankhorst <maarten.lankhorst at linux.intel.com>
> Cc: Maxime Ripard <mripard at kernel.org>
> Cc: David Airlie <airlied at linux.ie>
> Cc: Daniel Vetter <daniel at ffwll.ch>

Reviewed-by: Sean Paul <sean at poorly.run>

> Signed-off-by: Rob Herring <robh at kernel.org>
> ---
>  include/drm/drm_gem_shmem_helper.h | 13 +++++++++++++
>  1 file changed, 13 insertions(+)
> 
> diff --git a/include/drm/drm_gem_shmem_helper.h b/include/drm/drm_gem_shmem_helper.h
> index e2e9947b4770..901eafb09209 100644
> --- a/include/drm/drm_gem_shmem_helper.h
> +++ b/include/drm/drm_gem_shmem_helper.h
> @@ -44,7 +44,20 @@ struct drm_gem_shmem_object {
>  	 */
>  	unsigned int pages_use_count;
>  
> +	/**
> +	 * @madv: State for madvise
> +	 *
> +	 * 0 is active/inuse.
> +	 * A negative value is the object is purged.
> +	 * Positive values are driver specific and not used by the helpers.
> +	 */
>  	int madv;
> +
> +	/**
> +	 * @madv_list: List entry for madvise tracking
> +	 *
> +	 * Typically used by drivers to track purgeable objects
> +	 */
>  	struct list_head madv_list;
>  
>  	/**
> -- 
> 2.20.1
> 

-- 
Sean Paul, Software Engineer, Google / Chromium OS