Hi WingMan, FYI, the error/warning still remains. tree: git://git.ti.com/ti-linux-kernel/ti-linux-kernel.git ti-rt-linux-5.10.y head: 541ec9a6995c3dd881d6f0b63cc714a08ded457d commit: e355bf097bb11257afeadf6665e51f224eeb93a7 [7473/10213] net: packet: Pass on redundant net info in packet_recvmsg config: parisc-defconfig (https://download.01.org/0day-ci/archive/20211207/202112071419.IrqCWJuw-lk...) compiler: hppa-linux-gcc (GCC) 11.2.0 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 git remote add ti git://git.ti.com/ti-linux-kernel/ti-linux-kernel.git git fetch --no-tags ti ti-rt-linux-5.10.y git checkout e355bf097bb11257afeadf6665e51f224eeb93a7 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=parisc SHELL=/bin/bash fs/ net/ 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 >>): In file included from include/linux/tcp.h:19, from include/linux/ipv6.h:87, from include/net/ipv6.h:12, from include/linux/sunrpc/addr.h:14, from fs/nfs/client.c:19: include/net/sock.h: In function 'sock_recv_redundant_info': 2523 | put_cmsg(msg, SOL_SOCKET, SCM_REDUNDANT, sizeof(*sred), sred); | ^~~~~~~~~~~~~ include/net/sock.h:2523:43: note: each undeclared identifier is reported only once for each function it appears in -- In file included from include/linux/tcp.h:19, from include/linux/ipv6.h:87, from include/net/ipv6.h:12, from include/linux/sunrpc/addr.h:14, from fs/nfsd/nfsd.h:22, from fs/nfsd/export.c:21: include/net/sock.h: In function 'sock_recv_redundant_info': 2523 | put_cmsg(msg, SOL_SOCKET, SCM_REDUNDANT, sizeof(*sred), sred); | ^~~~~~~~~~~~~ include/net/sock.h:2523:43: note: each undeclared identifier is reported only once for each function it appears in fs/nfsd/export.c: In function 'exp_rootfh': fs/nfsd/export.c:919:34: warning: variable 'inode' set but not used [-Wunused-but-set-variable] 919 | struct inode *inode; | ^~~~~ -- In file included from include/linux/tcp.h:19, from include/linux/ipv6.h:87, from include/net/ipv6.h:12, from include/linux/sunrpc/clnt.h:28, from include/linux/nfs_fs.h:32, from fs/nfs/nfstrace.c:5: include/net/sock.h: In function 'sock_recv_redundant_info': 2523 | put_cmsg(msg, SOL_SOCKET, SCM_REDUNDANT, sizeof(*sred), sred); | ^~~~~~~~~~~~~ include/net/sock.h:2523:43: note: each undeclared identifier is reported only once for each function it appears in In file included from fs/nfs/nfstrace.h:1444, from fs/nfs/nfstrace.c:10: include/trace/define_trace.h: At top level: include/trace/define_trace.h:95:42: fatal error: ./nfstrace.h: No such file or directory 95 | #include TRACE_INCLUDE(TRACE_INCLUDE_FILE) | ^ compilation terminated. -- In file included from include/linux/tcp.h:19, from include/linux/ipv6.h:87, from include/net/ipv6.h:12, from include/linux/sunrpc/addr.h:14, from fs/nfsd/nfsd.h:22, from fs/nfsd/state.h:42, from fs/nfsd/trace.h:250, from fs/nfsd/trace.c:3: include/net/sock.h: In function 'sock_recv_redundant_info': 2523 | put_cmsg(msg, SOL_SOCKET, SCM_REDUNDANT, sizeof(*sred), sred); | ^~~~~~~~~~~~~ include/net/sock.h:2523:43: note: each undeclared identifier is reported only once for each function it appears in In file included from fs/nfsd/trace.h:785, from fs/nfsd/trace.c:3: include/trace/define_trace.h: At top level: include/trace/define_trace.h:95:42: fatal error: ./trace.h: No such file or directory 95 | #include TRACE_INCLUDE(TRACE_INCLUDE_FILE) | ^ compilation terminated. -- In file included from include/linux/tcp.h:19, from include/linux/ipv6.h:87, from include/net/ipv6.h:12, from fs/cifs/cifsfs.c:42: include/net/sock.h: In function 'sock_recv_redundant_info': 2523 | put_cmsg(msg, SOL_SOCKET, SCM_REDUNDANT, sizeof(*sred), sred); | ^~~~~~~~~~~~~ include/net/sock.h:2523:43: note: each undeclared identifier is reported only once for each function it appears in In file included from fs/cifs/cifsglob.h:32, from fs/cifs/cifsfs.c:46: fs/cifs/smb2pdu.h: At top level: fs/cifs/smb2pdu.h:28:10: fatal error: cifsacl.h: No such file or directory 28 | #include <cifsacl.h> | ^~~~~~~~~~~ compilation terminated. -- In file included from fs/io_uring.c:64: include/net/sock.h: In function 'sock_recv_redundant_info': 2523 | put_cmsg(msg, SOL_SOCKET, SCM_REDUNDANT, sizeof(*sred), sred); | ^~~~~~~~~~~~~ include/net/sock.h:2523:43: note: each undeclared identifier is reported only once for each function it appears in fs/io_uring.c: In function 'io_prep_async_work': fs/io_uring.c:1431:29: warning: variable 'id' set but not used [-Wunused-but-set-variable] 1431 | struct io_identity *id; | ^~ -- In file included from include/net/cls_cgroup.h:14, from net/socket.c:95: include/net/sock.h: In function 'sock_recv_redundant_info': 2523 | put_cmsg(msg, SOL_SOCKET, SCM_REDUNDANT, sizeof(*sred), sred); | ^~~~~~~~~~~~~ include/net/sock.h:2523:43: note: each undeclared identifier is reported only once for each function it appears in net/socket.c: In function '__sys_getsockopt': net/socket.c:2155:13: warning: variable 'max_optlen' set but not used [-Wunused-but-set-variable] 2155 | int max_optlen; | ^~~~~~~~~~ -- In file included from include/linux/mroute_base.h:8, from include/linux/mroute.h:10, from net/ipv4/route.c:83: include/net/sock.h: In function 'sock_recv_redundant_info': 2523 | put_cmsg(msg, SOL_SOCKET, SCM_REDUNDANT, sizeof(*sred), sred); | ^~~~~~~~~~~~~ include/net/sock.h:2523:43: note: each undeclared identifier is reported only once for each function it appears in net/ipv4/route.c: In function 'ip_rt_send_redirect': net/ipv4/route.c:885:13: warning: variable 'log_martians' set but not used [-Wunused-but-set-variable] 885 | int log_martians; | ^~~~~~~~~~~~ -- In file included from include/net/inet_sock.h:22, from include/net/ip.h:28, from net/ipv6/ip6_fib.c:28: include/net/sock.h: In function 'sock_recv_redundant_info': 2523 | put_cmsg(msg, SOL_SOCKET, SCM_REDUNDANT, sizeof(*sred), sred); | ^~~~~~~~~~~~~ include/net/sock.h:2523:43: note: each undeclared identifier is reported only once for each function it appears in net/ipv6/ip6_fib.c: In function 'fib6_add': net/ipv6/ip6_fib.c:1375:32: warning: variable 'pn' set but not used [-Wunused-but-set-variable] 1375 | struct fib6_node *fn, *pn = NULL; | ^~ vim +/SCM_REDUNDANT +2523 include/net/sock.h 2514 2515 DECLARE_STATIC_KEY_FALSE(tcp_rx_skb_cache_key); 2516 static inline void sock_recv_redundant_info(struct msghdr *msg, struct sock *sk, 2517 struct sk_buff *skb) 2518 { 2519 struct skb_redundant_info *sred; 2520 2521 sred = skb_redinfo(skb); 2522 if (sred->lsdu_size) 2524 } 2525 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org