tree: https://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-next.git iwlmei head: 05468ee36282cd2564af0a4d085bd98771ecf5d5 commit: 678fa0dd5cd6c9ee44e1ece46b1086be459d5f6f [3/6] iwlwifi: mvm: add vendor commands needed for iwlmei config: arc-allyesconfig (attached as .config) compiler: arceb-elf-gcc (GCC) 9.3.0 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://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-next.git/... git remote add iwlwifi-next https://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-next.git git fetch --no-tags iwlwifi-next iwlmei git checkout 678fa0dd5cd6c9ee44e1ece46b1086be459d5f6f # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arc 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 >>): 1496 | struct iwl_mvm_csme_conn_info *iwl_mvm_get_csme_conn_info(struct iwl_mvm *mvm) | ^~~~~~~~~~~~~~~~~~~~~~~~~~ vim +/iwl_mvm_get_csme_conn_info +1496 drivers/net/wireless/intel/iwlwifi/mvm/ops.c 9ee718aa9269cf drivers/net/wireless/iwlwifi/mvm/ops.c Eytan Lifshitz 2013-05-19 1495 9dba7c7aa7fbb8 drivers/net/wireless/intel/iwlwifi/mvm/ops.c Emmanuel Grumbach 2021-04-20 @1496 struct iwl_mvm_csme_conn_info *iwl_mvm_get_csme_conn_info(struct iwl_mvm *mvm) 9dba7c7aa7fbb8 drivers/net/wireless/intel/iwlwifi/mvm/ops.c Emmanuel Grumbach 2021-04-20 1497 { 9dba7c7aa7fbb8 drivers/net/wireless/intel/iwlwifi/mvm/ops.c Emmanuel Grumbach 2021-04-20 1498 return rcu_dereference_protected(mvm->csme_conn_info, 9dba7c7aa7fbb8 drivers/net/wireless/intel/iwlwifi/mvm/ops.c Emmanuel Grumbach 2021-04-20 1499 lockdep_is_held(&mvm->mutex)); 9dba7c7aa7fbb8 drivers/net/wireless/intel/iwlwifi/mvm/ops.c Emmanuel Grumbach 2021-04-20 1500 } 9dba7c7aa7fbb8 drivers/net/wireless/intel/iwlwifi/mvm/ops.c Emmanuel Grumbach 2021-04-20 1501 :::::: The code at line 1496 was first introduced by commit :::::: 9dba7c7aa7fbb8c5a38bebd804b54a03ce627527 iwlwifi: integrate with iwlmei :::::: TO: Emmanuel Grumbach <emmanuel.grumbach(a)intel.com&gt; :::::: CC: Luca Coelho <luciano.coelho(a)intel.com&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org