Re: [kwiboo-linux-rockchip:rockchip-5.1-patches-from-5.3-v5.1.5 83/106] drivers/gpu//drm/rockchip/rockchip_drm_gem.c:230:9: error: implicit declaration of function 'vm_map_pages'; did you mean 'vma_pages'?

[Souptick Joarder <jrdr.linux@gmail.com>]

Hi Jonas,

On Sun, May 26, 2019 at 4:29 PM kbuild test robot <lkp@intel.com> wrote:
>
> tree:   https://github.com/Kwiboo/linux-rockchip rockchip-5.1-patches-from-5.3-v5.1.5
> head:   622dad206e3b82c53acac1857f8a6ff970c0d01b
> commit: 4004964b0854f3258032a723627d487882a74380 [83/106] drm/rockchip/rockchip_drm_gem.c: convert to use vm_map_pages()
> config: arm64-allyesconfig (attached as .config)
> compiler: aarch64-linux-gcc (GCC) 7.4.0
> reproduce:
>         wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
>         chmod +x ~/bin/make.cross
>         git checkout 4004964b0854f3258032a723627d487882a74380
>         # save the attached .config to linux build tree
>         GCC_VERSION=7.4.0 make.cross ARCH=arm64
>
> If you fix the issue, kindly add following tag
> Reported-by: kbuild test robot <lkp@intel.com>
>
> All errors (new ones prefixed by >>):
>
>    drivers/gpu//drm/rockchip/rockchip_drm_gem.c: In function 'rockchip_drm_gem_object_mmap_iommu':
> >> drivers/gpu//drm/rockchip/rockchip_drm_gem.c:230:9: error: implicit declaration of function 'vm_map_pages'; did you mean 'vma_pages'? [-Werror=implicit-function-declaration]
>      return vm_map_pages(vma, rk_obj->pages, count);
>             ^~~~~~~~~~~~
>             vma_pages
>    cc1: some warnings being treated as errors

Looking into https://github.com/Kwiboo/linux-rockchip/blob/rockchip-5.1-patches-from-5.3-v5.1.5/mm/memory.c
vm_map_pages() API is missing. vm_map_pages() merged into 5.2-rc1.
Is the below match merged into  https://github.com/Kwiboo/linux-rockchip ?

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v5.2-rc1&id=a667d7456f189e3422725dddcd067537feac49c0
>
> vim +230 drivers/gpu//drm/rockchip/rockchip_drm_gem.c
>
>    219
>    220  static int rockchip_drm_gem_object_mmap_iommu(struct drm_gem_object *obj,
>    221                                                struct vm_area_struct *vma)
>    222  {
>    223          struct rockchip_gem_object *rk_obj = to_rockchip_obj(obj);
>    224          unsigned int count = obj->size >> PAGE_SHIFT;
>    225          unsigned long user_count = vma_pages(vma);
>    226
>    227          if (user_count == 0)
>    228                  return -ENXIO;
>    229
>  > 230          return vm_map_pages(vma, rk_obj->pages, count);
>    231  }
>    232
>
> ---
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