tree: https://git.kernel.org/pub/scm/linux/kernel/git/jirislaby/linux.git devel head: 13ed719c8f2410b973d1579af04a9469c52cc193 commit: b9779abb09a8fea27845516ac093cabd012a697c [6680/7219] lib: stackdepot: add support to disable stack depot config: arc-randconfig-r026-20210129 (attached as .config) compiler: arc-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/jirislaby/linux.git/commit/?id=b9779abb09a8fea27845516ac093cabd012a697c git remote add jirislaby https://git.kernel.org/pub/scm/linux/kernel/git/jirislaby/linux.git git fetch --no-tags jirislaby devel git checkout b9779abb09a8fea27845516ac093cabd012a697c # 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@xxxxxxxxx> All warnings (new ones prefixed by >>): lib/stackdepot.c: In function 'is_stack_depot_disabled': >> lib/stackdepot.c:154:2: warning: ignoring return value of 'kstrtobool', declared with attribute warn_unused_result [-Wunused-result] 154 | kstrtobool(str, &stack_depot_disable); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ vim +/kstrtobool +154 lib/stackdepot.c 151 152 static int __init is_stack_depot_disabled(char *str) 153 { > 154 kstrtobool(str, &stack_depot_disable); 155 if (stack_depot_disable) { 156 pr_info("Stack Depot is disabled\n"); 157 stack_table = NULL; 158 } 159 return 0; 160 } 161 early_param("stack_depot_disable", is_stack_depot_disabled); 162 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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