tree: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86/entry head: 72f40a2823d6e16229ab58b898c6f22044e5222f commit: 72f40a2823d6e16229ab58b898c6f22044e5222f [14/14] x86/softirq/64: Inline do_softirq_own_stack() config: x86_64-randconfig-a012-20201005 (attached as .config) compiler: gcc-9 (Debian 9.3.0-15) 9.3.0 reproduce (this is a W=1 build): # https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=72... git remote add tip https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git git fetch --no-tags tip x86/entry git checkout 72f40a2823d6e16229ab58b898c6f22044e5222f # save the attached .config to linux build tree make W=1 ARCH=x86_64 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 >>): --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org