Hi Du, Thank you for the patch! Yet something to improve: [auto build test ERROR on linus/master] [also build test ERROR on v5.12-rc7 next-20210414] [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/Du-Cheng/net-sched-tapr-remove-W... base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 7f75285ca572eaabc028cf78c6ab5473d0d160be config: powerpc64-randconfig-r014-20210415 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 6a18cc23efad410db48a3ccfc233d215de7d4cb9) 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 powerpc64 cross compiling tool for clang build # apt-get install binutils-powerpc64-linux-gnu # https://github.com/0day-ci/linux/commit/274f557f95031e6965d9bb0ee67fdc22f... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Du-Cheng/net-sched-tapr-remove-WARN_ON-in-taprio_get_start_time/20210415-144126 git checkout 274f557f95031e6965d9bb0ee67fdc22f2eb9b3a # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=powerpc64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): { ^ net/sched/sch_taprio.c:1031:1: error: function definition is not allowed here { ^ net/sched/sch_taprio.c:1053:1: error: function definition is not allowed here { ^ net/sched/sch_taprio.c:1077:1: error: function definition is not allowed here { ^ net/sched/sch_taprio.c:1106:1: error: function definition is not allowed here { ^ net/sched/sch_taprio.c:1117:1: error: function definition is not allowed here { ^ net/sched/sch_taprio.c:1132:1: error: function definition is not allowed here { ^ net/sched/sch_taprio.c:1145:1: error: function definition is not allowed here { ^ net/sched/sch_taprio.c:1171:1: error: function definition is not allowed here { ^ net/sched/sch_taprio.c:1187:1: error: function definition is not allowed here { ^ net/sched/sch_taprio.c:1208:1: error: function definition is not allowed here { ^ net/sched/sch_taprio.c:1233:1: error: function definition is not allowed here { ^ net/sched/sch_taprio.c:1269:1: error: function definition is not allowed here { ^ net/sched/sch_taprio.c:1310:1: error: function definition is not allowed here { ^ net/sched/sch_taprio.c:1385:1: error: function definition is not allowed here { ^ net/sched/sch_taprio.c:1411:1: error: function definition is not allowed here { ^ net/sched/sch_taprio.c:1432:1: error: function definition is not allowed here { ^ net/sched/sch_taprio.c:1601:1: error: function definition is not allowed here { ^ net/sched/sch_taprio.c:1617:1: error: function definition is not allowed here { ^ fatal error: too many errors emitted, stopping now [-ferror-limit=] 20 errors generated. vim +1012 net/sched/sch_taprio.c 5a781ccbd19e46 Vinicius Costa Gomes 2018-09-28 1009 a3d43c0d56f1b9 Vinicius Costa Gomes 2019-04-29 1010 static void setup_first_close_time(struct taprio_sched *q, a3d43c0d56f1b9 Vinicius Costa Gomes 2019-04-29 1011 struct sched_gate_list *sched, ktime_t base) 5a781ccbd19e46 Vinicius Costa Gomes 2018-09-28 @1012 { 5a781ccbd19e46 Vinicius Costa Gomes 2018-09-28 1013 struct sched_entry *first; 6ca6a6654225f3 Vinicius Costa Gomes 2019-04-29 1014 ktime_t cycle; 5a781ccbd19e46 Vinicius Costa Gomes 2018-09-28 1015 a3d43c0d56f1b9 Vinicius Costa Gomes 2019-04-29 1016 first = list_first_entry(&sched->entries, a3d43c0d56f1b9 Vinicius Costa Gomes 2019-04-29 1017 struct sched_entry, list); 5a781ccbd19e46 Vinicius Costa Gomes 2018-09-28 1018 037be0374078e2 Vedang Patel 2019-06-25 1019 cycle = sched->cycle_time; 6ca6a6654225f3 Vinicius Costa Gomes 2019-04-29 1020 6ca6a6654225f3 Vinicius Costa Gomes 2019-04-29 1021 /* FIXME: find a better place to do this */ 6ca6a6654225f3 Vinicius Costa Gomes 2019-04-29 1022 sched->cycle_close_time = ktime_add_ns(base, cycle); 6ca6a6654225f3 Vinicius Costa Gomes 2019-04-29 1023 a3d43c0d56f1b9 Vinicius Costa Gomes 2019-04-29 1024 first->close_time = ktime_add_ns(base, first->interval); 23bddf692d369c Jakub Kicinski 2019-04-17 1025 taprio_set_budget(q, first); 5a781ccbd19e46 Vinicius Costa Gomes 2018-09-28 1026 rcu_assign_pointer(q->current_entry, NULL); a3d43c0d56f1b9 Vinicius Costa Gomes 2019-04-29 1027 } 5a781ccbd19e46 Vinicius Costa Gomes 2018-09-28 1028 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org