Hi, kernel test robot noticed the following build warnings: [auto build test WARNING on bpf-next/master] url: https://github.com/intel-lab-lkp/linux/commits/thinker-li-gmail-com/bpf-refactory-struct_ops-type-initialization-to-a-function/20231022-131121 base: https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master patch link: https://lore.kernel.org/r/20231022050335.2579051-8-thinker.li%40gmail.com patch subject: [PATCH bpf-next v6 07/10] bpf, net: switch to dynamic registration reproduce: (https://download.01.org/0day-ci/archive/20231022/202310221421.WsGCmmEc-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/202310221421.WsGCmmEc-lkp@xxxxxxxxx/ # many are suggestions rather than must-fix WARNING:AVOID_EXTERNS: externs should be avoided in .c files #192: FILE: kernel/bpf/bpf_struct_ops.c:80: +extern struct btf *btf_vmlinux; -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
