tree: https://git.kernel.org/pub/scm/linux/kernel/git/kas/linux.git kvm-unmapped-memfd-secret head: 94275e094f4072635764a33ae668a1c42e588034 commit: c35686e535d7b1e77d1597ea230e6d0c42db19b8 [259/305] lib: stackdepot: add support to disable stack depot config: ia64-randconfig-r003-20210301 (attached as .config) compiler: ia64-linux-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/kas/linux.git/commit/?id=c35686e535d7b1e77d1597ea230e6d0c42db19b8 git remote add kas https://git.kernel.org/pub/scm/linux/kernel/git/kas/linux.git git fetch --no-tags kas kvm-unmapped-memfd-secret git checkout c35686e535d7b1e77d1597ea230e6d0c42db19b8 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=ia64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): In file included from arch/ia64/include/asm/pgtable.h:154, from include/linux/pgtable.h:6, from arch/ia64/include/asm/uaccess.h:40, from include/linux/uaccess.h:11, from arch/ia64/include/asm/sections.h:11, from include/linux/interrupt.h:20, from lib/stackdepot.c:23: arch/ia64/include/asm/mmu_context.h: In function 'reload_context': arch/ia64/include/asm/mmu_context.h:127:41: warning: variable 'old_rr4' set but not used [-Wunused-but-set-variable] 127 | unsigned long rr0, rr1, rr2, rr3, rr4, old_rr4; | ^~~~~~~ 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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