Hi Dai, [FYI, it's a private test report for your RFC patch.] [auto build test WARNING on linus/master] [also build test WARNING on v5.16 next-20220110] [cannot apply to cel-2.6/for-next jlayton/linux-next] [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/Dai-Ngo/nfsd-Initial-implementat... base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git df0cc57e057f18e44dac8e6c18aba47ab53202f9 config: m68k-allyesconfig (https://download.01.org/0day-ci/archive/20220111/202201110428.jF9JKms7-lk...) compiler: m68k-linux-gcc (GCC) 11.2.0 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/9d727ed1cc3cca2c8f60573a24cfcddb9... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Dai-Ngo/nfsd-Initial-implementation-of-NFSv4-Courteous-Server/20220111-025146 git checkout 9d727ed1cc3cca2c8f60573a24cfcddb9780c5e7 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=m68k SHELL=/bin/bash fs/nfsd/ 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 >>): 167 | renew_client_locked(struct nfs4_client *clp) | ^~~~~~~~~~~~~~~~~~~ vim +/renew_client_locked +167 fs/nfsd/nfs4state.c 221a68766973d7 J. Bruce Fields 2013-04-01 162 9d727ed1cc3cca Dai Ngo 2022-01-10 163 /* must be called under the client_lock 221a68766973d7 J. Bruce Fields 2013-04-01 164 static inline void 9d727ed1cc3cca Dai Ngo 2022-01-10 165 */ 9d727ed1cc3cca Dai Ngo 2022-01-10 166 void 221a68766973d7 J. Bruce Fields 2013-04-01 @167 renew_client_locked(struct nfs4_client *clp) 221a68766973d7 J. Bruce Fields 2013-04-01 168 { 221a68766973d7 J. Bruce Fields 2013-04-01 169 struct nfsd_net *nn = net_generic(clp->net, nfsd_net_id); 221a68766973d7 J. Bruce Fields 2013-04-01 170 221a68766973d7 J. Bruce Fields 2013-04-01 171 if (is_client_expired(clp)) { 221a68766973d7 J. Bruce Fields 2013-04-01 172 WARN_ON(1); 221a68766973d7 J. Bruce Fields 2013-04-01 173 printk("%s: client (clientid %08x/%08x) already expired\n", 221a68766973d7 J. Bruce Fields 2013-04-01 174 __func__, 221a68766973d7 J. Bruce Fields 2013-04-01 175 clp->cl_clientid.cl_boot, 221a68766973d7 J. Bruce Fields 2013-04-01 176 clp->cl_clientid.cl_id); 221a68766973d7 J. Bruce Fields 2013-04-01 177 return; 221a68766973d7 J. Bruce Fields 2013-04-01 178 } 221a68766973d7 J. Bruce Fields 2013-04-01 179 221a68766973d7 J. Bruce Fields 2013-04-01 180 list_move_tail(&clp->cl_lru, &nn->client_lru); 20b7d86f29d39e Arnd Bergmann 2019-11-04 181 clp->cl_time = ktime_get_boottime_seconds(); 9d727ed1cc3cca Dai Ngo 2022-01-10 182 clear_bit(NFSD4_COURTESY_CLIENT, &clp->cl_flags); 221a68766973d7 J. Bruce Fields 2013-04-01 183 } 9d727ed1cc3cca Dai Ngo 2022-01-10 184 EXPORT_SYMBOL_GPL(renew_client_locked); 221a68766973d7 J. Bruce Fields 2013-04-01 185 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org