[kbuild-all] [congwang:sockmap3 2/9] net/unix/unix_bpf.c:15:17: error: 'sock_map_close' undeclared; did you mean 'sk_msg_clone'?

tree: https://github.com/congwang/linux.git sockmap3 head: 5128e99b2a4b0d084ecb739e2108dcd2e68b11d7 commit: dedf0418fa1e61fd2d331e69e4bb936e00c614a6 [2/9] af_unix: implement ->psock_update_sk_prot() config: alpha-randconfig-m031-20210419 (attached as .config) compiler: alpha-linux-gcc (GCC) 9.3.0 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 # https://github.com/congwang/linux/commit/dedf0418fa1e61fd2d331e69e4bb936e... git remote add congwang https://github.com/congwang/linux.git git fetch --no-tags congwang sockmap3 git checkout dedf0418fa1e61fd2d331e69e4bb936e00c614a6 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross W=1 ARCH=alpha 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 >>): net/unix/unix_bpf.c: In function 'unix_bpf_rebuild_protos': 15 | prot->close = sock_map_close; | ^~~~~~~~~~~~~~ | sk_msg_clone net/unix/unix_bpf.c:15:17: note: each undeclared identifier is reported only once for each function it appears in vim +15 net/unix/unix_bpf.c 11 12 static void unix_bpf_rebuild_protos(struct proto *prot, const struct proto *base) 13 { 14 *prot = *base; 16 } 17 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org