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Date: Thu, 21 Sep 2017 09:02:22 +0800
From: Mark yao <mark.yao@...k-chips.com>
To: Thomas Meyer <thomas@...3r.de>, airlied@...ux.ie, heiko@...ech.de,
dri-devel@...ts.freedesktop.org,
linux-arm-kernel@...ts.infradead.org,
linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 7/7] drm/rockchip: Cocci spatch "vma_pages"
On 2017年09月21日 06:29, Thomas Meyer wrote:
> Use vma_pages function on vma object instead of explicit computation.
> Found by coccinelle spatch "api/vma_pages.cocci"
>
> Signed-off-by: Thomas Meyer <thomas@...3r.de>
> ---
Looks good for me:
Acked-by: Mark Yao <mark.yao@...k-chips.com>
>
> diff -u -p a/drivers/gpu/drm/rockchip/rockchip_drm_gem.c b/drivers/gpu/drm/rockchip/rockchip_drm_gem.c
> --- a/drivers/gpu/drm/rockchip/rockchip_drm_gem.c
> +++ b/drivers/gpu/drm/rockchip/rockchip_drm_gem.c
> @@ -220,7 +220,7 @@ static int rockchip_drm_gem_object_mmap_
> {
> struct rockchip_gem_object *rk_obj = to_rockchip_obj(obj);
> unsigned int i, count = obj->size >> PAGE_SHIFT;
> - unsigned long user_count = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT;
> + unsigned long user_count = vma_pages(vma);
> unsigned long uaddr = vma->vm_start;
> unsigned long offset = vma->vm_pgoff;
> unsigned long end = user_count + offset;
>
> _______________________________________________
> Linux-rockchip mailing list
> Linux-rockchip@...ts.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-rockchip
>
>
>
--
Ｍark Yao
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