tree: https://github.com/multipath-tcp/mptcp_net-next.git t/mptcp-Implement-path-manager-interface-commands head: a28e79bf6de027fea5d0522a32a686aacf5658a7 commit: 781d512532236fdeb2038457060aa4a470e01f7e [20/25] tgupdate: merge t/mptcp-Implement-path-manager-interface-commands base into t/mptcp-Implement-path-manager-interface-commands config: x86_64-allyesconfig (attached as .config) compiler: clang version 11.0.0 (git://gitmirror/llvm_project 949134e2fefd34a38ed71de90dffe2300e2e1139) reproduce: # FIXME the reproduce steps for clang is not ready yet If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp(a)intel.com&gt; Note: the mptcp/t/mptcp-Implement-path-manager-interface-commands HEAD a28e79bf6de027fea5d0522a32a686aacf5658a7 builds fine. It only hurts bisectibility. All errors (new ones prefixed by >>): msk->addr_signal = 1; ~~~ ^ net/mptcp/pm.c:57:7: error: no member named 'addr_signal' in 'struct mptcp_sock' msk->addr_signal = 1; ~~~ ^ 2 errors generated. vim +31 net/mptcp/pm.c 532e0037f0c3af Peter Krystad 2020-02-26 12 532e0037f0c3af Peter Krystad 2020-02-26 13 int mptcp_pm_announce_addr(u32 token, u8 local_id, struct in_addr *addr) 532e0037f0c3af Peter Krystad 2020-02-26 14 { 4b738110d9bfa5 Peter Krystad 2020-02-26 15 struct mptcp_sock *msk = mptcp_token_get_sock(token); 4b738110d9bfa5 Peter Krystad 2020-02-26 16 int err = 0; 4b738110d9bfa5 Peter Krystad 2020-02-26 17 4b738110d9bfa5 Peter Krystad 2020-02-26 18 if (!msk) 4b738110d9bfa5 Peter Krystad 2020-02-26 19 return -EINVAL; 4b738110d9bfa5 Peter Krystad 2020-02-26 20 4b738110d9bfa5 Peter Krystad 2020-02-26 21 if (msk->pm.local_valid) { 4b738110d9bfa5 Peter Krystad 2020-02-26 22 err = -EBADR; 4b738110d9bfa5 Peter Krystad 2020-02-26 23 goto announce_put; 4b738110d9bfa5 Peter Krystad 2020-02-26 24 } 4b738110d9bfa5 Peter Krystad 2020-02-26 25 4b738110d9bfa5 Peter Krystad 2020-02-26 26 pr_debug("msk=%p, local_id=%d", msk, local_id); 4b738110d9bfa5 Peter Krystad 2020-02-26 27 msk->pm.local_valid = 1; 4b738110d9bfa5 Peter Krystad 2020-02-26 28 msk->pm.local_id = local_id; 4b738110d9bfa5 Peter Krystad 2020-02-26 29 msk->pm.local_family = AF_INET; 4b738110d9bfa5 Peter Krystad 2020-02-26 30 msk->pm.local_addr = *addr; 4b738110d9bfa5 Peter Krystad 2020-02-26 @31 msk->addr_signal = 1; 4b738110d9bfa5 Peter Krystad 2020-02-26 32 4b738110d9bfa5 Peter Krystad 2020-02-26 33 announce_put: 4b738110d9bfa5 Peter Krystad 2020-02-26 34 sock_put((struct sock *)msk); 4b738110d9bfa5 Peter Krystad 2020-02-26 35 return err; 532e0037f0c3af Peter Krystad 2020-02-26 36 } 532e0037f0c3af Peter Krystad 2020-02-26 37 :::::: The code at line 31 was first introduced by commit :::::: 4b738110d9bfa5e1a763123e0ef6d0d2f5852782 mptcp: Implement path manager interface commands :::::: TO: Peter Krystad <peter.krystad(a)linux.intel.com&gt; :::::: CC: Matthieu Baerts <matthieu.baerts(a)tessares.net&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org