From mboxrd@z Thu Jan 1 00:00:00 1970 From: Vasyl Gomonovych Subject: [PATCH] drm/rockchip: dma-mapping: Use vma_pages helper Date: Wed, 22 Nov 2017 16:24:07 +0100 Message-ID: <1511364247-8581-1-git-send-email-gomonovych@gmail.com> Return-path: Sender: linux-kernel-owner@vger.kernel.org To: mark.yao@rock-chips.com, airlied@linux.ie, heiko@sntech.de, dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org Cc: linux-kernel@vger.kernel.org, gomonovych@gmail.com List-Id: dri-devel@lists.freedesktop.org Use vma_pages function on vma object instead of explicit computation. ./drivers/gpu/drm/rockchip/rockchip_drm_gem.c:223:34-40: WARNING: Consider using vma_pages helper on vma Generated by: scripts/coccinelle/api/vma_pages.cocci Signed-off-by: Vasyl Gomonovych --- drivers/gpu/drm/rockchip/rockchip_drm_gem.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_gem.c b/drivers/gpu/drm/rockchip/rockchip_drm_gem.c index 1869c8bb76c8..1d9655576b6e 100644 --- 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_iommu(struct drm_gem_object *obj, { 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; -- 1.9.1