Hi Suren, [FYI, it's a private test report for your RFC patch.] [auto build test ERROR on linus/master] [also build test ERROR on v5.10-rc3 next-20201113] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Suren-Baghdasaryan/RFC-add-pidfd... base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 585e5b17b92dead8a3aca4e3c9876fbca5f7e0ba config: arm-randconfig-r012-20201113 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 9e0c35655b6e8186baef8840b26ba4090503b554) 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 arm cross compiling tool for clang build # apt-get install binutils-arm-linux-gnueabi # https://github.com/0day-ci/linux/commit/f350a31b4bb718aa40224cb93f8219783... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Suren-Baghdasaryan/RFC-add-pidfd_send_signal-flag-to-reclaim-mm-while-killing-a-process/20201114-013551 git checkout f350a31b4bb718aa40224cb93f82197839581274 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org