[kbuild-all] [congwang:sockmap1-v2 1/5] net/ipv4/tcp_minisocks.c:551: undefined reference to `tcp_bpf_clone'

tree: https://github.com/congwang/linux.git sockmap1-v2 head: dbcb8c1d39a99e8cc66bd7ced359d4b986776f78 commit: 847353ec78c927b3a10beb39e7786d6e3b76fb43 [1/5] bpf: clean up CONFIG_BPF_STREAM_PARSER config: i386-randconfig-c001-20210209 (attached as .config) compiler: gcc-9 (Debian 9.3.0-15) 9.3.0 reproduce (this is a W=1 build): # https://github.com/congwang/linux/commit/847353ec78c927b3a10beb39e7786d6e... git remote add congwang https://github.com/congwang/linux.git git fetch --no-tags congwang sockmap1-v2 git checkout 847353ec78c927b3a10beb39e7786d6e3b76fb43 # save the attached .config to linux build tree make W=1 ARCH=i386 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 >>): ld: net/ipv4/tcp_minisocks.o: in function `tcp_create_openreq_child': vim +551 net/ipv4/tcp_minisocks.c 60e2a7780793ba Ursula Braun 2017-10-25 449 ^1da177e4c3f41 Linus Torvalds 2005-04-16 450 /* This is not only more efficient than what we used to do, it eliminates ^1da177e4c3f41 Linus Torvalds 2005-04-16 451 * a lot of code duplication between IPv4/IPv6 SYN recv processing. -DaveM ^1da177e4c3f41 Linus Torvalds 2005-04-16 452 * ^1da177e4c3f41 Linus Torvalds 2005-04-16 453 * Actually, we could lots of memory writes here. tp of listening ^1da177e4c3f41 Linus Torvalds 2005-04-16 454 * socket contains all necessary default parameters. ^1da177e4c3f41 Linus Torvalds 2005-04-16 455 */ c28c6f045945f5 Eric Dumazet 2015-09-29 456 struct sock *tcp_create_openreq_child(const struct sock *sk, c28c6f045945f5 Eric Dumazet 2015-09-29 457 struct request_sock *req, c28c6f045945f5 Eric Dumazet 2015-09-29 458 struct sk_buff *skb) ^1da177e4c3f41 Linus Torvalds 2005-04-16 459 { e56c57d0d3fdbb Eric Dumazet 2011-11-08 460 struct sock *newsk = inet_csk_clone_lock(sk, req, GFP_ATOMIC); 9f1d2604c71498 Arnaldo Carvalho de Melo 2005-08-09 461 const struct inet_request_sock *ireq = inet_rsk(req); 2e6599cb899ba4 Arnaldo Carvalho de Melo 2005-06-18 462 struct tcp_request_sock *treq = tcp_rsk(req); 242b1bbe5144de Eric Dumazet 2018-06-26 463 struct inet_connection_sock *newicsk; 242b1bbe5144de Eric Dumazet 2018-06-26 464 struct tcp_sock *oldtp, *newtp; dba7d9b8c739df Eric Dumazet 2019-10-10 465 u32 seq; 242b1bbe5144de Eric Dumazet 2018-06-26 466 242b1bbe5144de Eric Dumazet 2018-06-26 467 if (!newsk) 242b1bbe5144de Eric Dumazet 2018-06-26 468 return NULL; 242b1bbe5144de Eric Dumazet 2018-06-26 469 242b1bbe5144de Eric Dumazet 2018-06-26 470 newicsk = inet_csk(newsk); 242b1bbe5144de Eric Dumazet 2018-06-26 471 newtp = tcp_sk(newsk); 242b1bbe5144de Eric Dumazet 2018-06-26 472 oldtp = tcp_sk(sk); 60e2a7780793ba Ursula Braun 2017-10-25 473 60e2a7780793ba Ursula Braun 2017-10-25 474 smc_check_reset_syn_req(oldtp, req, newtp); ^1da177e4c3f41 Linus Torvalds 2005-04-16 475 ^1da177e4c3f41 Linus Torvalds 2005-04-16 476 /* Now setup tcp_sock */ 31770e34e43d6c Florian Westphal 2017-08-30 477 newtp->pred_flags = 0; 31770e34e43d6c Florian Westphal 2017-08-30 478 dba7d9b8c739df Eric Dumazet 2019-10-10 479 seq = treq->rcv_isn + 1; dba7d9b8c739df Eric Dumazet 2019-10-10 480 newtp->rcv_wup = seq; 7db48e98393028 Eric Dumazet 2019-10-10 481 WRITE_ONCE(newtp->copied_seq, seq); dba7d9b8c739df Eric Dumazet 2019-10-10 482 WRITE_ONCE(newtp->rcv_nxt, seq); a9d99ce28ed359 Eric Dumazet 2016-03-06 483 newtp->segs_in = 1; 435cf559f02ea3 William Allen Simpson 2009-12-02 484 e0d694d638dba7 Eric Dumazet 2019-10-10 485 seq = treq->snt_isn + 1; e0d694d638dba7 Eric Dumazet 2019-10-10 486 newtp->snd_sml = newtp->snd_una = seq; e0d694d638dba7 Eric Dumazet 2019-10-10 487 WRITE_ONCE(newtp->snd_nxt, seq); e0d694d638dba7 Eric Dumazet 2019-10-10 488 newtp->snd_up = seq; ^1da177e4c3f41 Linus Torvalds 2005-04-16 489 46d3ceabd8d98e Eric Dumazet 2012-07-11 490 INIT_LIST_HEAD(&newtp->tsq_node); e2080072ed2d98 Eric Dumazet 2017-10-04 491 INIT_LIST_HEAD(&newtp->tsorted_sent_queue); ^1da177e4c3f41 Linus Torvalds 2005-04-16 492 ee7537b63a28b4 Hantzis Fotis 2009-03-02 493 tcp_init_wl(newtp, treq->rcv_isn); ^1da177e4c3f41 Linus Torvalds 2005-04-16 494 ac9517fcf31032 Eric Dumazet 2017-05-16 495 minmax_reset(&newtp->rtt_min, tcp_jiffies32, ~0U); 70eabf0e1b8fe1 Eric Dumazet 2017-05-16 496 newicsk->icsk_ack.lrcvtime = tcp_jiffies32; ^1da177e4c3f41 Linus Torvalds 2005-04-16 497 9a568de4818dea Eric Dumazet 2017-05-16 498 newtp->lsndtime = tcp_jiffies32; d8ed625044cded Eric Dumazet 2015-09-22 499 newsk->sk_txhash = treq->txhash; 375fe02c917929 Yuchung Cheng 2013-07-22 500 newtp->total_retrans = req->num_retrans; ^1da177e4c3f41 Linus Torvalds 2005-04-16 501 ^1da177e4c3f41 Linus Torvalds 2005-04-16 502 tcp_init_xmit_timers(newsk); 0f31746452e679 Eric Dumazet 2019-10-10 503 WRITE_ONCE(newtp->write_seq, newtp->pushed_seq = treq->snt_isn + 1); ^1da177e4c3f41 Linus Torvalds 2005-04-16 504 ^1da177e4c3f41 Linus Torvalds 2005-04-16 505 if (sock_flag(newsk, SOCK_KEEPOPEN)) 463c84b97f2401 Arnaldo Carvalho de Melo 2005-08-09 506 inet_csk_reset_keepalive_timer(newsk, ^1da177e4c3f41 Linus Torvalds 2005-04-16 507 keepalive_time_when(newtp)); ^1da177e4c3f41 Linus Torvalds 2005-04-16 508 2e6599cb899ba4 Arnaldo Carvalho de Melo 2005-06-18 509 newtp->rx_opt.tstamp_ok = ireq->tstamp_ok; 713bafea929201 Yuchung Cheng 2017-11-08 510 newtp->rx_opt.sack_ok = ireq->sack_ok; ed53d0ab761f5c Eric Dumazet 2015-10-08 511 newtp->window_clamp = req->rsk_window_clamp; ed53d0ab761f5c Eric Dumazet 2015-10-08 512 newtp->rcv_ssthresh = req->rsk_rcv_wnd; ed53d0ab761f5c Eric Dumazet 2015-10-08 513 newtp->rcv_wnd = req->rsk_rcv_wnd; 2e6599cb899ba4 Arnaldo Carvalho de Melo 2005-06-18 514 newtp->rx_opt.wscale_ok = ireq->wscale_ok; ^1da177e4c3f41 Linus Torvalds 2005-04-16 515 if (newtp->rx_opt.wscale_ok) { 2e6599cb899ba4 Arnaldo Carvalho de Melo 2005-06-18 516 newtp->rx_opt.snd_wscale = ireq->snd_wscale; 2e6599cb899ba4 Arnaldo Carvalho de Melo 2005-06-18 517 newtp->rx_opt.rcv_wscale = ireq->rcv_wscale; ^1da177e4c3f41 Linus Torvalds 2005-04-16 518 } else { ^1da177e4c3f41 Linus Torvalds 2005-04-16 519 newtp->rx_opt.snd_wscale = newtp->rx_opt.rcv_wscale = 0; ^1da177e4c3f41 Linus Torvalds 2005-04-16 520 newtp->window_clamp = min(newtp->window_clamp, 65535U); ^1da177e4c3f41 Linus Torvalds 2005-04-16 521 } 242b1bbe5144de Eric Dumazet 2018-06-26 522 newtp->snd_wnd = ntohs(tcp_hdr(skb)->window) << newtp->rx_opt.snd_wscale; ^1da177e4c3f41 Linus Torvalds 2005-04-16 523 newtp->max_window = newtp->snd_wnd; ^1da177e4c3f41 Linus Torvalds 2005-04-16 524 ^1da177e4c3f41 Linus Torvalds 2005-04-16 525 if (newtp->rx_opt.tstamp_ok) { ^1da177e4c3f41 Linus Torvalds 2005-04-16 526 newtp->rx_opt.ts_recent = req->ts_recent; cca9bab1b72cd2 Arnd Bergmann 2018-07-11 527 newtp->rx_opt.ts_recent_stamp = ktime_get_seconds(); ^1da177e4c3f41 Linus Torvalds 2005-04-16 528 newtp->tcp_header_len = sizeof(struct tcphdr) + TCPOLEN_TSTAMP_ALIGNED; ^1da177e4c3f41 Linus Torvalds 2005-04-16 529 } else { ^1da177e4c3f41 Linus Torvalds 2005-04-16 530 newtp->rx_opt.ts_recent_stamp = 0; ^1da177e4c3f41 Linus Torvalds 2005-04-16 531 newtp->tcp_header_len = sizeof(struct tcphdr); ^1da177e4c3f41 Linus Torvalds 2005-04-16 532 } 336c39a0315139 Yuchung Cheng 2019-04-29 533 if (req->num_timeout) { 336c39a0315139 Yuchung Cheng 2019-04-29 534 newtp->undo_marker = treq->snt_isn; 336c39a0315139 Yuchung Cheng 2019-04-29 535 newtp->retrans_stamp = div_u64(treq->snt_synack, 336c39a0315139 Yuchung Cheng 2019-04-29 536 USEC_PER_SEC / TCP_TS_HZ); 336c39a0315139 Yuchung Cheng 2019-04-29 537 } 95a22caee396ce Florian Westphal 2016-12-01 538 newtp->tsoffset = treq->ts_off; cfb6eeb4c86059 YOSHIFUJI Hideaki 2006-11-14 539 #ifdef CONFIG_TCP_MD5SIG cfb6eeb4c86059 YOSHIFUJI Hideaki 2006-11-14 540 newtp->md5sig_info = NULL; /*XXX*/ cfb6eeb4c86059 YOSHIFUJI Hideaki 2006-11-14 541 if (newtp->af_specific->md5_lookup(sk, newsk)) cfb6eeb4c86059 YOSHIFUJI Hideaki 2006-11-14 542 newtp->tcp_header_len += TCPOLEN_MD5SIG_ALIGNED; cfb6eeb4c86059 YOSHIFUJI Hideaki 2006-11-14 543 #endif bee7ca9ec03a26 William Allen Simpson 2009-11-10 544 if (skb->len >= TCP_MSS_DEFAULT + newtp->tcp_header_len) 463c84b97f2401 Arnaldo Carvalho de Melo 2005-08-09 545 newicsk->icsk_ack.last_seg_size = skb->len - newtp->tcp_header_len; ^1da177e4c3f41 Linus Torvalds 2005-04-16 546 newtp->rx_opt.mss_clamp = req->mss; 735d383117e113 Florian Westphal 2014-09-29 547 tcp_ecn_openreq_child(newtp, req); 8b485ce69876c6 Eric Dumazet 2017-05-03 548 newtp->fastopen_req = NULL; d983ea6f16b835 Eric Dumazet 2019-10-10 549 RCU_INIT_POINTER(newtp->fastopen_rsk, NULL); ^1da177e4c3f41 Linus Torvalds 2005-04-16 550 e80251555f0bef Jakub Sitnicki 2020-02-18 @551 tcp_bpf_clone(sk, newsk); e80251555f0bef Jakub Sitnicki 2020-02-18 552 90bbcc608369a1 Eric Dumazet 2016-04-27 553 __TCP_INC_STATS(sock_net(sk), TCP_MIB_PASSIVEOPENS); 242b1bbe5144de Eric Dumazet 2018-06-26 554 ^1da177e4c3f41 Linus Torvalds 2005-04-16 555 return newsk; ^1da177e4c3f41 Linus Torvalds 2005-04-16 556 } 4bc2f18ba4f22a Eric Dumazet 2010-07-09 557 EXPORT_SYMBOL(tcp_create_openreq_child); ^1da177e4c3f41 Linus Torvalds 2005-04-16 558 :::::: The code at line 551 was first introduced by commit :::::: e80251555f0befd1271e74b080bccf0ff0348bfc tcp_bpf: Don't let child socket inherit parent protocol ops on copy :::::: TO: Jakub Sitnicki <jakub(a)cloudflare.com&gt; :::::: CC: Daniel Borkmann <daniel(a)iogearbox.net&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org