tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 8568bb2ccc278f344e6ac44af6ed010a90aa88dc commit: 314a53623cd4e62e1b88126e5ed2bc87073d90ee [4050/4242] bpf: inline bpf_get_branch_snapshot() helper config: loongarch-randconfig-r021-20230624 (https://download.01.org/0day-ci/archive/20240405/202404051659.aawUkGUQ-lkp@xxxxxxxxx/config) compiler: loongarch64-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240405/202404051659.aawUkGUQ-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/202404051659.aawUkGUQ-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): loongarch64-linux-ld: kernel/bpf/verifier.o: in function `.LBB2972': kernel/bpf/verifier.c:20223:(.text+0xa814): undefined reference to `__SCK__perf_snapshot_branch_stack' >> loongarch64-linux-ld: kernel/bpf/verifier.c:20223:(.text+0xa818): undefined reference to `__SCK__perf_snapshot_branch_stack' -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki