Hi "Christian, I love your patch! Yet something to improve: [auto build test ERROR on drm-intel/for-linux-next] [also build test ERROR on hnaz-linux-mm/master staging/staging-testing linux/master linus/master v5.9-rc8 next-20201008] [cannot apply to mmotm/master] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Christian-K-nig/mm-introduce-vma_set_file-function-v2/20201008-192433 base: git://anongit.freedesktop.org/drm-intel for-linux-next config: h8300-randconfig-r036-20201008 (attached as .config) compiler: h8300-linux-gcc (GCC) 9.3.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://github.com/0day-ci/linux/commit/839555b050d42ba052565bb71a11223e3d649c7a git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Christian-K-nig/mm-introduce-vma_set_file-function-v2/20201008-192433 git checkout 839555b050d42ba052565bb71a11223e3d649c7a # 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 All errors (new ones prefixed by >>): h8300-linux-ld: section .init.text LMA [000000000048e500,00000000004cd3ef] overlaps section .text LMA [000000000000025c,0000000000b6acbf] h8300-linux-ld: section .data VMA [0000000000400000,000000000048e4ff] overlaps section .text VMA [000000000000025c,0000000000b6acbf] h8300-linux-ld: drivers/gpu/drm/vgem/vgem_drv.o: in function `vgem_prime_mmap': >> drivers/gpu/drm/vgem/vgem_drv.c:396: undefined reference to `vma_set_file' h8300-linux-ld: drivers/dma-buf/dma-buf.o: in function `dma_buf_mmap': drivers/dma-buf/dma-buf.c:1166: undefined reference to `vma_set_file' >> h8300-linux-ld: drivers/dma-buf/dma-buf.c:1172: undefined reference to `vma_set_file' vim +396 drivers/gpu/drm/vgem/vgem_drv.c 380 381 static int vgem_prime_mmap(struct drm_gem_object *obj, 382 struct vm_area_struct *vma) 383 { 384 int ret; 385 386 if (obj->size < vma->vm_end - vma->vm_start) 387 return -EINVAL; 388 389 if (!obj->filp) 390 return -ENODEV; 391 392 ret = call_mmap(obj->filp, vma); 393 if (ret) 394 return ret; 395 > 396 vma_set_file(vma, obj->filp); 397 vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP; 398 vma->vm_page_prot = pgprot_writecombine(vm_get_page_prot(vma->vm_flags)); 399 400 return 0; 401 } 402 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org