Thanks, this update has merged to drm-misc-next months ago: https://patchwork.freedesktop.org/patch/178255/ ? 2017/11/22 23:24, Vasyl Gomonovych ??: > 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 <gomonovych at gmail.com> > --- > ? 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; >