Hi Arnd, FYI, the error/warning still remains. tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: cb153b68ff91cbc434f3de70ac549e110543e1bb commit: 54f481a2308efab49d2b14c3f8263b34fdb1c65e [123/11353] ARM: remove old-style irq entry config: arm-buildonly-randconfig-r006-20220308 (https://download.01.org/0day-ci/archive/20220309/202203090525.Ks4Y4c8K-lkp@xxxxxxxxx/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project fa0f90bc55ed536e1488648255278ce9029cfa59) 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://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=54f481a2308efab49d2b14c3f8263b34fdb1c65e git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout 54f481a2308efab49d2b14c3f8263b34fdb1c65e # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): ld.lld: warning: lld uses blx instruction, no object with architecture supporting feature detected ld.lld: warning: lld uses blx instruction, no object with architecture supporting feature detected >> ld.lld: error: undefined symbol: generic_handle_arch_irq >>> referenced by kernel/entry-armv.o:(__irq_svc) in archive arch/arm/built-in.a >>> referenced by kernel/entry-armv.o:(__irq_usr) in archive arch/arm/built-in.a --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
