Hi "Christian, I love your patch! Perhaps something to improve: [auto build test WARNING on drm-tip/drm-tip] [also build test WARNING on drm-exynos/exynos-drm-next tegra-drm/drm/tegra/for-next next-20210401] [cannot apply to drm-intel/for-linux-next linus/master drm/drm-next v5.12-rc5] [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/drm-ttm-optimize-the-pool-shrinker-a-bit/20210401-215623 base: git://anongit.freedesktop.org/drm/drm-tip drm-tip config: x86_64-randconfig-a004-20210401 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 1c268a8ff4e90a85d0e634350b1104080614cf2b) 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 # install x86_64 cross compiling tool for clang build # apt-get install binutils-x86-64-linux-gnu # https://github.com/0day-ci/linux/commit/c0f3e98ef4f78d5e9d874be1f339186faf5c60bc git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Christian-K-nig/drm-ttm-optimize-the-pool-shrinker-a-bit/20210401-215623 git checkout c0f3e98ef4f78d5e9d874be1f339186faf5c60bc # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): >> mm/vmscan.c:415: warning: expecting prototype for sync_shrinker(). Prototype was for sync_shrinkers() instead mm/vmscan.c:1627: warning: wrong kernel-doc identifier on line: * Isolating page from the lruvec to fill in @dst list by nr_to_scan times. vim +415 mm/vmscan.c 410 411 /** 412 * sync_shrinker - Wait for all running shrinkers to complete. 413 */ 414 void sync_shrinkers(void) > 415 { 416 down_write(&shrinker_rwsem); 417 up_write(&shrinker_rwsem); 418 } 419 EXPORT_SYMBOL(sync_shrinkers); 420 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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