Hi Kuniyuki, kernel test robot noticed the following build errors: [auto build test ERROR on bpf-next/net] url: https://github.com/intel-lab-lkp/linux/commits/Kuniyuki-Iwashima/tcp-Save-lock_sock-for-memcg-in-inet_csk_accept/20250910-044928 base: https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git net patch link: https://lore.kernel.org/r/20250909204632.3994767-4-kuniyu%40google.com patch subject: [PATCH v7 bpf-next/net 3/6] net-memcg: Introduce net.core.memcg_exclusive sysctl. config: um-randconfig-001-20250910 (https://download.01.org/0day-ci/archive/20250910/202509101912.ROjtP2uL-lkp@xxxxxxxxx/config) compiler: clang version 22.0.0git (https://github.com/llvm/llvm-project 7fb1dc08d2f025aad5777bb779dfac1197e9ef87) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250910/202509101912.ROjtP2uL-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/202509101912.ROjtP2uL-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): /usr/bin/ld: warning: .tmp_vmlinux1 has a LOAD segment with RWX permissions /usr/bin/ld: mm/memcontrol.o: in function `mem_cgroup_sk_set': >> memcontrol.c:(.text+0xa1e0): undefined reference to `init_net' clang: error: linker command failed with exit code 1 (use -v to see invocation) -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki