[kbuild-all] [jpirko-mlxsw:ubridge 73/78] drivers/net/ethernet/mellanox/mlxsw/spectrum_fid.c:461:12: warning: stack frame size (1092) exceeds limit (1024) in 'mlxsw_sp_fid_erif_eport_to_vid_map'

tree: https://github.com/jpirko/linux_mlxsw ubridge head: 976afb368c2f7efc2dc2436013895cc96ab06774 commit: 6e0855a9b3824d98f266ac39a1a19c7bce925cd2 [73/78] mlxsw: spectrum_fid: Configure layer 3 egress VID classification config: i386-allmodconfig (https://download.01.org/0day-ci/archive/20220120/202201201030.HA2UgQTx-lk...) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project f7b7138a62648f4019c55e4671682af1f851f295) 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/jpirko/linux_mlxsw/commit/6e0855a9b3824d98f266ac39a1a1... git remote add jpirko-mlxsw https://github.com/jpirko/linux_mlxsw git fetch --no-tags jpirko-mlxsw ubridge git checkout 6e0855a9b3824d98f266ac39a1a19c7bce925cd2 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 SHELL=/bin/bash drivers/net/ethernet/mellanox/mlxsw/ 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 >>): static int mlxsw_sp_fid_erif_eport_to_vid_map(struct mlxsw_sp_fid *fid, ^ static int __mlxsw_sp_fid_port_vid_map(const struct mlxsw_sp_fid *fid, ^ 2 warnings generated. vim +/mlxsw_sp_fid_erif_eport_to_vid_map +461 drivers/net/ethernet/mellanox/mlxsw/spectrum_fid.c 460 462 u16 rif_index, bool valid) 463 { 464 struct mlxsw_sp *mlxsw_sp = fid->fid_family->mlxsw_sp; 465 struct mlxsw_sp_fid_port_vid *port_vid, *tmp; 466 char reiv_pl[MLXSW_REG_REIV_LEN] = {}; 467 bool records_to_write = false; 468 u8 rec_num, current_page = 0; 469 u16 last_local_port; 470 int err; 471 472 mlxsw_reg_reiv_pack(reiv_pl, current_page, rif_index); 473 last_local_port = current_page * MLXSW_REG_REIV_REC_MAX_COUNT + 474 MLXSW_REG_REIV_REC_MAX_COUNT - 1; 475 476 list_for_each_entry_safe(port_vid, tmp, &fid->port_vid_list, list) { 477 /* The list is sorted by local_port. */ 478 if (port_vid->local_port > last_local_port) 479 goto reg_write; 480 481 new_record_fill: 482 rec_num = port_vid->local_port % MLXSW_REG_REIV_REC_MAX_COUNT; 483 mlxsw_reg_reiv_rec_update_set(reiv_pl, rec_num, true); 484 mlxsw_reg_reiv_rec_evid_set(reiv_pl, rec_num, 485 valid ? port_vid->vid : 0); 486 records_to_write = true; 487 goto next_list_node; 488 489 reg_write: 490 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(reiv), reiv_pl); 491 if (err) 492 return err; 493 494 records_to_write = false; 495 current_page++; 496 memset(reiv_pl, 0, MLXSW_REG_REIV_LEN); 497 mlxsw_reg_reiv_pack(reiv_pl, current_page, rif_index); 498 last_local_port = current_page * MLXSW_REG_REIV_REC_MAX_COUNT + 499 MLXSW_REG_REIV_REC_MAX_COUNT - 1; 500 goto new_record_fill; 501 502 next_list_node: 503 continue; 504 } 505 506 if (records_to_write) 507 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(reiv), 508 reiv_pl); 509 return 0; 510 } 511 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org