Messages in this thread | | | Date | Mon, 15 Nov 2021 04:29:48 +0800 | From | kernel test robot <> | Subject | [jpirko-mlxsw:linecards 55/112] drivers/net/ethernet/mellanox/mlxsw/core_linecards.c:366:26: warning: variable 'linecards' set but not used |
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tree: https://github.com/jpirko/linux_mlxsw linecards head: 7cbf836a1c8105f00dc98c24054feed7640b0dfd commit: f8f5a8c6910c7716db683cc02eea2fe5e288b74c [55/112] mlxsw: core_linecards: Add line card objects and implement provisioning config: riscv-buildonly-randconfig-r004-20211115 (attached as .config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project c3dddeeafb529e769cde87bd29ef6271ac6bfa5c) 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 riscv cross compiling tool for clang build # apt-get install binutils-riscv64-linux-gnu # https://github.com/jpirko/linux_mlxsw/commit/f8f5a8c6910c7716db683cc02eea2fe5e288b74c git remote add jpirko-mlxsw https://github.com/jpirko/linux_mlxsw git fetch --no-tags jpirko-mlxsw linecards git checkout f8f5a8c6910c7716db683cc02eea2fe5e288b74c # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=riscv
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
>> drivers/net/ethernet/mellanox/mlxsw/core_linecards.c:366:26: warning: variable 'linecards' set but not used [-Wunused-but-set-variable] struct mlxsw_linecards *linecards; ^ 1 warning generated.
vim +/linecards +366 drivers/net/ethernet/mellanox/mlxsw/core_linecards.c
359 360 static int mlxsw_linecard_unprovision(struct devlink_linecard *devlink_linecard, 361 void *priv, 362 struct netlink_ext_ack *extack) 363 { 364 enum mlxsw_reg_mbct_fsm_state fsm_state; 365 struct mlxsw_linecard *linecard = priv; > 366 struct mlxsw_linecards *linecards; 367 enum mlxsw_reg_mbct_status status; 368 unsigned int ini_wait_retries = 0; 369 struct mlxsw_core *mlxsw_core; 370 int err; 371 372 mutex_lock(&linecard->lock); 373 374 linecards = linecard->linecards; 375 mlxsw_core = linecard->linecards->mlxsw_core; 376 377 query_ini_status: 378 err = mlxsw_linecard_query_status(linecard, &status, 379 &fsm_state, extack); 380 if (err) 381 goto err_out; 382 383 switch (fsm_state) { 384 case MLXSW_REG_MBCT_FSM_STATE_INI_IN_USE: 385 if (ini_wait_retries++ > MLXSW_LINECARD_INI_WAIT_RETRIES) { 386 NL_SET_ERR_MSG_MOD(extack, "Failed to wait for linecard INI to be not used"); 387 goto err_out; 388 } 389 mdelay(MLXSW_LINECARD_INI_WAIT_MS); 390 goto query_ini_status; 391 default: 392 break; 393 } 394 395 mlxsw_reg_mbct_pack(linecard->mbct_pl, linecard->slot_index, 396 MLXSW_REG_MBCT_OP_ERASE_INI_IMAGE, 0, 397 false, false, NULL); 398 err = mlxsw_reg_write(mlxsw_core, MLXSW_REG(mbct), 399 linecard->mbct_pl); 400 if (err) { 401 NL_SET_ERR_MSG_MOD(extack, "Failed to erase linecard INI"); 402 goto err_out; 403 } 404 mlxsw_reg_mbct_unpack(linecard->mbct_pl, NULL, &status, &fsm_state); 405 switch (status) { 406 case MLXSW_REG_MBCT_STATUS_ERASE_COMPLETE: 407 break; 408 default: 409 /* Should not happen, fall-through. */ 410 case MLXSW_REG_MBCT_STATUS_ERASE_FAILED: 411 NL_SET_ERR_MSG_MOD(extack, "Failed to erase linecard INI"); 412 goto fix_fsm_err_out; 413 case MLXSW_REG_MBCT_STATUS_ERROR_INI_IN_USE: 414 NL_SET_ERR_MSG_MOD(extack, "Failed to erase linecard INI while being used"); 415 goto fix_fsm_err_out; 416 } 417 goto out; 418 419 fix_fsm_err_out: 420 mlxsw_linecard_fix_fsm_state(linecard, fsm_state); 421 err_out: 422 mlxsw_linecard_provision_fail(linecard); 423 out: 424 mutex_unlock(&linecard->lock); 425 return err; 426 } 427
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