tree: https://github.com/multipath-tcp/mptcp_net-next.git t/mptcp-Implement-path-manager-interface-commands head: a28e79bf6de027fea5d0522a32a686aacf5658a7 commit: eba1df51e6151d1cc04a559911cf905992581b22 [23/25] tgupdate: merge t/mptcp-Implement-path-manager-interface-commands base into t/mptcp-Implement-path-manager-interface-commands config: mips-randconfig-a001-20200228 (attached as .config) compiler: mipsel-linux-gcc (GCC) 5.5.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout eba1df51e6151d1cc04a559911cf905992581b22 # save the attached .config to linux build tree GCC_VERSION=5.5.0 make.cross ARCH=mips 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 >>): net//mptcp/pm.c: In function 'mptcp_pm_announce_addr': net//mptcp/pm.c:18:21: error: 'msk' redeclared as different kind of symbol struct mptcp_sock *msk = mptcp_token_get_sock(token); ^ net//mptcp/pm.c:15:47: note: previous definition of 'msk' was here int mptcp_pm_announce_addr(struct mptcp_sock *msk, ^ net//mptcp/pm.c:18:48: error: 'token' undeclared (first use in this function) struct mptcp_sock *msk = mptcp_token_get_sock(token); ^ net//mptcp/pm.c:18:48: note: each undeclared identifier is reported only once for each function it appears in net//mptcp/pm.c:30:14: error: 'struct mptcp_pm_data' has no member named 'remote_valid' if (!msk->pm.remote_valid || remote_id != msk->pm.remote_id) { ^ net//mptcp/pm.c:30:31: error: 'remote_id' undeclared (first use in this function) if (!msk->pm.remote_valid || remote_id != msk->pm.remote_id) { ^ net//mptcp/pm.c:30:51: error: 'struct mptcp_pm_data' has no member named 'remote_id' if (!msk->pm.remote_valid || remote_id != msk->pm.remote_id) { ^ net//mptcp/pm.c:38:18: error: incompatible types when assigning to type 'struct in_addr' from type 'const struct mptcp_addr_info' local.sin_addr = *addr; ^ net//mptcp/pm.c:42:29: error: 'struct mptcp_pm_data' has no member named 'remote_family' remote.sin_family = msk->pm.remote_family; ^ net//mptcp/pm.c:44:27: error: 'struct mptcp_pm_data' has no member named 'remote_addr' remote.sin_addr = msk->pm.remote_addr; ^ err = mptcp_subflow_connect(sk, (struct sockaddr *)&local, ^ net//mptcp/pm.c: In function 'mptcp_pm_remove_addr': net//mptcp/pm.c:56:21: error: 'msk' redeclared as different kind of symbol struct mptcp_sock *msk = mptcp_token_get_sock(token); ^ net//mptcp/pm.c:54:45: note: previous definition of 'msk' was here int mptcp_pm_remove_addr(struct mptcp_sock *msk, u8 local_id) ^ net//mptcp/pm.c:56:48: error: 'token' undeclared (first use in this function) struct mptcp_sock *msk = mptcp_token_get_sock(token); ^ net//mptcp/pm.c:68:14: error: 'struct mptcp_pm_data' has no member named 'remote_valid' if (!msk->pm.remote_valid || remote_id != msk->pm.remote_id) { ^ net//mptcp/pm.c:68:31: error: 'remote_id' undeclared (first use in this function) if (!msk->pm.remote_valid || remote_id != msk->pm.remote_id) { ^ net//mptcp/pm.c:68:51: error: 'struct mptcp_pm_data' has no member named 'remote_id' if (!msk->pm.remote_valid || remote_id != msk->pm.remote_id) { ^ net//mptcp/pm.c:75:6: error: 'addr' undeclared (first use in this function) if (addr) ^ net//mptcp/pm.c:80:30: error: 'struct mptcp_pm_data' has no member named 'remote_family' remote.sin6_family = msk->pm.remote_family; ^ net//mptcp/pm.c:82:28: error: 'struct mptcp_pm_data' has no member named 'remote_addr6' remote.sin6_addr = msk->pm.remote_addr6; ^ cc1: some warnings being treated as errors vim +/mptcp_subflow_connect +46 net//mptcp/pm.c 532e0037f0c3af Peter Krystad 2020-02-26 14 cb6c1764eb317d Paolo Abeni 2020-02-24 15 int mptcp_pm_announce_addr(struct mptcp_sock *msk, cb6c1764eb317d Paolo Abeni 2020-02-24 16 const struct mptcp_addr_info *addr) 532e0037f0c3af Peter Krystad 2020-02-26 17 { 4b738110d9bfa5 Peter Krystad 2020-02-26 18 struct mptcp_sock *msk = mptcp_token_get_sock(token); 4b738110d9bfa5 Peter Krystad 2020-02-26 19 struct sockaddr_in remote; 4b738110d9bfa5 Peter Krystad 2020-02-26 20 struct sockaddr_in local; 4b738110d9bfa5 Peter Krystad 2020-02-26 21 struct sock *sk; 4b738110d9bfa5 Peter Krystad 2020-02-26 22 int err; 4b738110d9bfa5 Peter Krystad 2020-02-26 23 4b738110d9bfa5 Peter Krystad 2020-02-26 24 if (!msk) 4b738110d9bfa5 Peter Krystad 2020-02-26 25 return -EINVAL; 4b738110d9bfa5 Peter Krystad 2020-02-26 26 4b738110d9bfa5 Peter Krystad 2020-02-26 27 pr_debug("msk=%p", msk); 4b738110d9bfa5 Peter Krystad 2020-02-26 28 4b738110d9bfa5 Peter Krystad 2020-02-26 29 sk = (struct sock *)msk; 4b738110d9bfa5 Peter Krystad 2020-02-26 30 if (!msk->pm.remote_valid || remote_id != msk->pm.remote_id) { 4b738110d9bfa5 Peter Krystad 2020-02-26 31 err = -EBADR; 4b738110d9bfa5 Peter Krystad 2020-02-26 32 goto create_put; 4b738110d9bfa5 Peter Krystad 2020-02-26 33 } 4b738110d9bfa5 Peter Krystad 2020-02-26 34 4b738110d9bfa5 Peter Krystad 2020-02-26 35 local.sin_family = AF_INET; 4b738110d9bfa5 Peter Krystad 2020-02-26 36 local.sin_port = 0; 4b738110d9bfa5 Peter Krystad 2020-02-26 37 if (addr) 4b738110d9bfa5 Peter Krystad 2020-02-26 @38 local.sin_addr = *addr; 4b738110d9bfa5 Peter Krystad 2020-02-26 39 else 4b738110d9bfa5 Peter Krystad 2020-02-26 40 local.sin_addr.s_addr = htonl(INADDR_ANY); 4b738110d9bfa5 Peter Krystad 2020-02-26 41 4b738110d9bfa5 Peter Krystad 2020-02-26 42 remote.sin_family = msk->pm.remote_family; 4b738110d9bfa5 Peter Krystad 2020-02-26 43 remote.sin_port = inet_sk(sk)->inet_dport; 4b738110d9bfa5 Peter Krystad 2020-02-26 44 remote.sin_addr = msk->pm.remote_addr; 4b738110d9bfa5 Peter Krystad 2020-02-26 45 4b738110d9bfa5 Peter Krystad 2020-02-26 @46 err = mptcp_subflow_connect(sk, (struct sockaddr *)&local, 4b738110d9bfa5 Peter Krystad 2020-02-26 47 (struct sockaddr *)&remote, remote_id); 4b738110d9bfa5 Peter Krystad 2020-02-26 48 4b738110d9bfa5 Peter Krystad 2020-02-26 49 create_put: 4b738110d9bfa5 Peter Krystad 2020-02-26 50 sock_put(sk); 4b738110d9bfa5 Peter Krystad 2020-02-26 51 return err; 532e0037f0c3af Peter Krystad 2020-02-26 52 } 532e0037f0c3af Peter Krystad 2020-02-26 53 :::::: The code at line 46 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