[drm-drm-misc:for-linux-next 2/2] drivers/dma-buf/dma-buf.c:1186: undefined reference to `vma_set_file'

[Christian König]

Guys, can anybody help me out. Why is the kernel test robot complaining 
here?

Thanks in advance,
Christian.

Am 05.11.20 um 16:26 schrieb kernel test robot:
> tree:   git://anongit.freedesktop.org/drm/drm-misc for-linux-next
> head:   2b5b95b1ff3d70a95013a45e3b5b90f1daf42348
> commit: 2b5b95b1ff3d70a95013a45e3b5b90f1daf42348 [2/2] mm: introduce vma_set_file function v4
> config: h8300-randconfig-r031-20201105 (attached as .config)
> compiler: h8300-linux-gcc (GCC) 9.3.0
> reproduce (this is a W=1 build):
>          wget https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fraw.githubusercontent.com%2Fintel%2Flkp-tests%2Fmaster%2Fsbin%2Fmake.cross&data=04%7C01%7Cchristian.koenig%40amd.com%7C2c3b39afc651426aa50608d8819f48fc%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637401871204724096%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=dK2txO1WerkR7SiB5i9kcXjbJTMlaQ1Q6dbK1cb9lnE%3D&reserved=0 -O ~/bin/make.cross
>          chmod +x ~/bin/make.cross
>          git remote add drm-drm-misc git://anongit.freedesktop.org/drm/drm-misc
>          git fetch --no-tags drm-drm-misc for-linux-next
>          git checkout 2b5b95b1ff3d70a95013a45e3b5b90f1daf42348
>          # save the attached .config to linux build tree
>          COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=h8300
>
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <lkp at intel.com>
>
> All errors (new ones prefixed by >>):
>
>     h8300-linux-ld: section .init.text LMA [00000000004da400,000000000051ebcb] overlaps section .text LMA [000000000000025c,0000000001069997]
>     h8300-linux-ld: section .data VMA [0000000000400000,00000000004da3ff] overlaps section .text VMA [000000000000025c,0000000001069997]
>     h8300-linux-ld: drivers/dma-buf/dma-buf.o: in function `dma_buf_mmap':
>>> drivers/dma-buf/dma-buf.c:1186: undefined reference to `vma_set_file'
> vim +1186 drivers/dma-buf/dma-buf.c
>
>    1150	
>    1151	
>    1152	/**
>    1153	 * dma_buf_mmap - Setup up a userspace mmap with the given vma
>    1154	 * @dmabuf:	[in]	buffer that should back the vma
>    1155	 * @vma:	[in]	vma for the mmap
>    1156	 * @pgoff:	[in]	offset in pages where this mmap should start within the
>    1157	 *			dma-buf buffer.
>    1158	 *
>    1159	 * This function adjusts the passed in vma so that it points at the file of the
>    1160	 * dma_buf operation. It also adjusts the starting pgoff and does bounds
>    1161	 * checking on the size of the vma. Then it calls the exporters mmap function to
>    1162	 * set up the mapping.
>    1163	 *
>    1164	 * Can return negative error values, returns 0 on success.
>    1165	 */
>    1166	int dma_buf_mmap(struct dma_buf *dmabuf, struct vm_area_struct *vma,
>    1167			 unsigned long pgoff)
>    1168	{
>    1169		if (WARN_ON(!dmabuf || !vma))
>    1170			return -EINVAL;
>    1171	
>    1172		/* check if buffer supports mmap */
>    1173		if (!dmabuf->ops->mmap)
>    1174			return -EINVAL;
>    1175	
>    1176		/* check for offset overflow */
>    1177		if (pgoff + vma_pages(vma) < pgoff)
>    1178			return -EOVERFLOW;
>    1179	
>    1180		/* check for overflowing the buffer's size */
>    1181		if (pgoff + vma_pages(vma) >
>    1182		    dmabuf->size >> PAGE_SHIFT)
>    1183			return -EINVAL;
>    1184	
>    1185		/* readjust the vma */
>> 1186		vma_set_file(vma, dmabuf->file);
>    1187		vma->vm_pgoff = pgoff;
>    1188	
>    1189		return dmabuf->ops->mmap(dmabuf, vma);
>    1190	}
>    1191	EXPORT_SYMBOL_GPL(dma_buf_mmap);
>    1192	
>
> ---
> 0-DAY CI Kernel Test Service, Intel Corporation
> https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.01.org%2Fhyperkitty%2Flist%2Fkbuild-all%40lists.01.org&data=04%7C01%7Cchristian.koenig%40amd.com%7C2c3b39afc651426aa50608d8819f48fc%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637401871204724096%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=YS8NkL2Wf4ysbsibG3a3MAGp8zsEopbazO3ARSAPezc%3D&reserved=0