tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 9d99040b1bc8dbf385a8aa535e9efcdf94466e19 commit: 8046f300501578d516391059d9ded85aa883487d [1861/2527] rcu-tasks: Remove open-coded one-byte cmpxchg() emulation config: um-randconfig-r033-20230910 (https://download.01.org/0day-ci/archive/20240530/202405300206.tMqF4PfU-lkp@xxxxxxxxx/config) compiler: gcc-13 (Ubuntu 13.2.0-4ubuntu3) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240530/202405300206.tMqF4PfU-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202405300206.tMqF4PfU-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): /usr/bin/ld: kernel/rcu/update.o: in function `rcu_trc_cmpxchg_need_qs': kernel/rcu/tasks.h:1472:(.text+0x1f67): undefined reference to `cmpxchg_emu_u8' >> /usr/bin/ld: kernel/rcu/tasks.h:1472:(.text+0x1fdf): undefined reference to `cmpxchg_emu_u8' /usr/bin/ld: kernel/rcu/tasks.h:1472:(.text+0x4523): undefined reference to `cmpxchg_emu_u8' /usr/bin/ld: kernel/rcu/tasks.h:1472:(.text+0x4573): undefined reference to `cmpxchg_emu_u8' /usr/bin/ld: kernel/rcu/tasks.h:1472:(.text+0x49f3): undefined reference to `cmpxchg_emu_u8' /usr/bin/ld: kernel/rcu/update.o:kernel/rcu/tasks.h:1472: more undefined references to `cmpxchg_emu_u8' follow collect2: error: ld returned 1 exit status -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
