Hi Peter, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on linux/master] [also build test WARNING on linus/master v5.12-rc7 next-20210416] [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/Peter-Enderborg/dma-buf-Add-DmaB... base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 5e46d1b78a03d52306f21f77a4e4a144b6d31486 config: m68k-randconfig-p002-20210416 (attached as .config) compiler: m68k-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/e8eb2093e4218ac48426a9e06dc015357... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Peter-Enderborg/dma-buf-Add-DmaBufTotal-counter-in-meminfo/20210417-001040 git checkout e8eb2093e4218ac48426a9e06dc0153577f088fd # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross W=1 ARCH=m68k If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): vim +1356 drivers/dma-buf/dma-buf.c 1351 1352 /** 1353 * dma_buf_get_size - Return the used nr pages by dma-buf 1354 */ 1355 long dma_buf_allocated_pages(void) 1357 return atomic_long_read(&dma_buf_global_allocated) >> PAGE_SHIFT; 1358 } 1359 EXPORT_SYMBOL_GPL(dma_buf_allocated_pages); 1360 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org