treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282

[mirror_ubuntu-hirsute-kernel.git] / drivers / gpu / drm / rockchip / rockchip_drm_gem.c

diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_gem.c b/drivers/gpu/drm/rockchip/rockchip_drm_gem.c
index a8db758d523e94780584090b191625ffdcd28a16..ba9e77acbe162d9072d5ac561f4b4e318ebd91f9 100644 (file)
--- a/drivers/gpu/drm/rockchip/rockchip_drm_gem.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_gem.c
@@ -1,15 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd
  * Author:Mark Yao <mark.yao@rock-chips.com>
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
  */
 
 #include <drm/drm.h>
@@ -221,26 +213,13 @@ static int rockchip_drm_gem_object_mmap_iommu(struct drm_gem_object *obj,
                                              struct vm_area_struct *vma)
 {
        struct rockchip_gem_object *rk_obj = to_rockchip_obj(obj);
-       unsigned int i, count = obj->size >> PAGE_SHIFT;
+       unsigned int count = obj->size >> 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;
-       int ret;
 
        if (user_count == 0)
                return -ENXIO;
-       if (end > count)
-               return -ENXIO;
 
-       for (i = offset; i < end; i++) {
-               ret = vm_insert_page(vma, uaddr, rk_obj->pages[i]);
-               if (ret)
-                       return ret;
-               uaddr += PAGE_SIZE;
-       }
-
-       return 0;
+       return vm_map_pages(vma, rk_obj->pages, count);
 }
 
 static int rockchip_drm_gem_object_mmap_dma(struct drm_gem_object *obj,