From: Allen Pais <allen.lkml@gmail.com>
To: linux-kernel@vger.kernel.org
Cc: mark.yao@rock-chips.com, linux-rockchip@lists.infradead.org,
Allen Pais <allen.lkml@gmail.com>
Subject: [PATCH 1/1] drivers:gpu: Use vma_pages()
Date: Thu, 21 Sep 2017 16:08:23 +0530 [thread overview]
Message-ID: <1505990303-27763-1-git-send-email-allen.lkml@gmail.com> (raw)
Replace explicit computation of vma page count by a call to
vma_pages()
Signed-off-by: Allen Pais <allen.lkml@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 1869c8b..d4c429c 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;
--
2.7.4
next reply other threads:[~2017-09-21 10:38 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-21 10:38 Allen Pais [this message]
2017-09-21 10:42 ` Allen
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