Hi Wang, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on linus/master] [also build test WARNING on v5.18 next-20220527] [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/intel-lab-lkp/linux/commits/Wang-Yugui/nfsd-serialize-filecache-garbage-collector/20220530-093218 base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git b00ed48bb0a7c295facf9036135a573a5cdbe7de config: x86_64-randconfig-s021 (https://download.01.org/0day-ci/archive/20220531/202205311402.i5by7a5m-lkp@xxxxxxxxx/config) compiler: gcc-11 (Debian 11.3.0-1) 11.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.4-14-g5a0004b5-dirty # https://github.com/intel-lab-lkp/linux/commit/7e2af8570695784cb8a9f9a3931dc631a9077206 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Wang-Yugui/nfsd-serialize-filecache-garbage-collector/20220530-093218 git checkout 7e2af8570695784cb8a9f9a3931dc631a9077206 # save the config file mkdir build_dir && cp config build_dir/.config make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=x86_64 SHELL=/bin/bash fs/nfsd/ If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <lkp@xxxxxxxxx> sparse warnings: (new ones prefixed by >>) >> fs/nfsd/filecache.c:475:10: sparse: sparse: symbol 'nfsd_file_gc_running' was not declared. Should it be static? Please review and possibly fold the followup patch. -- 0-DAY CI Kernel Test Service https://01.org/lkp
