From mboxrd@z Thu Jan  1 00:00:00 1970
From: inki.dae@samsung.com (Inki Dae)
Date: Fri, 19 Jun 2015 14:28:31 +0900
Subject: [PATCH] drm/exynos: Remove unused vma field of exynos_drm_gem_obj
In-Reply-To: <1434691409-9509-1-git-send-email-k.kozlowski@samsung.com>
References: <1434691409-9509-1-git-send-email-k.kozlowski@samsung.com>
Message-ID: <5583A87F.5090807@samsung.com>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

On 2015? 06? 19? 14:23, Krzysztof Kozlowski wrote:
> The field 'vma' of 'exynos_drm_gem_obj' structure was introduced in
> 2a3098ff6c21 ("drm/exynos: add userptr feature for g2d module") but is
> not referenced anywhere.
> 
> One instance of 'exynos_drm_gem_obj' may be mapped to multiple
> user-space VMAs so 'vma' field does not look useful anyway.

Krzysztof,

The vma member would be removed by below patch,
http://lists.freedesktop.org/archives/dri-devel/2015-May/082764.html

Thanks,
Inki Dae

> 
> Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
> ---
>  drivers/gpu/drm/exynos/exynos_drm_gem.h | 2 --
>  1 file changed, 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/exynos/exynos_drm_gem.h b/drivers/gpu/drm/exynos/exynos_drm_gem.h
> index 308173cb4f0a..6f42e2248288 100644
> --- a/drivers/gpu/drm/exynos/exynos_drm_gem.h
> +++ b/drivers/gpu/drm/exynos/exynos_drm_gem.h
> @@ -61,7 +61,6 @@ struct exynos_drm_gem_buf {
>   *	or at framebuffer creation.
>   * @size: size requested from user, in bytes and this size is aligned
>   *	in page unit.
> - * @vma: a pointer to vm_area.
>   * @flags: indicate memory type to allocated buffer and cache attruibute.
>   *
>   * P.S. this object would be transferred to user as kms_bo.handle so
> @@ -71,7 +70,6 @@ struct exynos_drm_gem_obj {
>  	struct drm_gem_object		base;
>  	struct exynos_drm_gem_buf	*buffer;
>  	unsigned long			size;
> -	struct vm_area_struct		*vma;
>  	unsigned int			flags;
>  };
>  
>