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X-CSE-ConnectionGUID: o00auLNIRYWNV0deJxakrg== X-CSE-MsgGUID: njT8nPuyRhW6chw5G5Rhaw== X-IronPort-AV: E=McAfee;i="6800,10657,11929"; a="231838" X-IronPort-AV: E=Sophos;i="6.27,148,1787036400"; d="scan'208";a="231838" Received: from fmviesa007.fm.intel.com ([10.60.135.147]) by orvoesa102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Oct 2026 05:07:56 -0700 X-CSE-ConnectionGUID: cXCCHR4eQ72UGo0dr4Tf1w== X-CSE-MsgGUID: YsCGC+q2SxK1QThZM36DIw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.27,148,1787036400"; d="scan'208";a="657983" Received: from igk-lkp-server01.igk.intel.com (HELO d0de6c2a75a7) ([10.211.93.152]) by fmviesa007.fm.intel.com with ESMTP; 09 Oct 2026 05:07:54 -0700 Received: from kbuild by d0de6c2a75a7 with local (Exim 4.98.2) (envelope-from ) id 1xF9OC-0000000071P-13fV; Fri, 09 Oct 2026 12:07:52 +0000 Date: Fri, 09 Oct 2026 14:06:56 +0200 From: kernel test robot To: Kumar Kartikeya Dwivedi Cc: oe-kbuild-all@lists.linux.dev Subject: [kkdwivedi:xdp-tcp 27/44] net/ipv4/tcp.c:3445:undefined reference to `tcp_xdp_disconnect' Message-ID: <202610091456.loit4oK0-lkp@intel.com> User-Agent: s-nail v14.9.25 Precedence: bulk X-Mailing-List: oe-kbuild-all@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: tree: https://github.com/kkdwivedi/linux xdp-tcp head: 82fde2d34c9c284bba8b2df97ac7f7ab34719853 commit: 9cf0ff35d7d930f7d54bc29857ae0f820b208a09 [27/44] tcp: Send a served connection's segments on a lean path of their own config: x86_64-randconfig-r2304-20261009 (https://download.01.org/0day-ci/archive/20261009/202610091456.loit4oK0-lkp@intel.com/config) compiler: gcc-14 (Debian 14.2.0-19) 14.2.0 sparse: v0.6.5-rc1 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20261009/202610091456.loit4oK0-lkp@intel.com/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 | Closes: https://lore.kernel.org/oe-kbuild-all/202610091456.loit4oK0-lkp@intel.com/ All errors (new ones prefixed by >>): ld: net/ipv4/tcp.o: in function `tcp_disconnect': >> net/ipv4/tcp.c:3445:(.text+0x1ac7c): undefined reference to `tcp_xdp_disconnect' vim +3445 net/ipv4/tcp.c 3360 3361 int tcp_disconnect(struct sock *sk, int flags) 3362 { 3363 struct inet_sock *inet = inet_sk(sk); 3364 struct inet_connection_sock *icsk = inet_csk(sk); 3365 struct tcp_sock *tp = tcp_sk(sk); 3366 int old_state = sk->sk_state; 3367 struct request_sock *req; 3368 u32 seq; 3369 3370 if (old_state != TCP_CLOSE) 3371 tcp_set_state(sk, TCP_CLOSE); 3372 3373 /* ABORT function of RFC793 */ 3374 if (old_state == TCP_LISTEN) { 3375 inet_csk_listen_stop(sk); 3376 } else if (unlikely(tp->repair)) { 3377 WRITE_ONCE(sk->sk_err, ECONNABORTED); 3378 } else if (tcp_need_reset(old_state)) { 3379 tcp_send_active_reset(sk, SK_RST_REASON_TCP_STATE); 3380 WRITE_ONCE(sk->sk_err, ECONNRESET); 3381 } else if (tp->snd_nxt != tp->write_seq && 3382 (1 << old_state) & (TCPF_CLOSING | TCPF_LAST_ACK)) { 3383 /* The last check adjusts for discrepancy of Linux wrt. RFC 3384 * states 3385 */ 3386 tcp_send_active_reset(sk, 3387 SK_RST_REASON_TCP_DISCONNECT_WITH_DATA); 3388 WRITE_ONCE(sk->sk_err, ECONNRESET); 3389 } else if (old_state == TCP_SYN_SENT) 3390 WRITE_ONCE(sk->sk_err, ECONNRESET); 3391 3392 tcp_clear_xmit_timers(sk); 3393 __skb_queue_purge(&sk->sk_receive_queue); 3394 WRITE_ONCE(tp->copied_seq, tp->rcv_nxt); 3395 WRITE_ONCE(tp->urg_data, 0); 3396 sk_set_peek_off(sk, -1); 3397 tcp_write_queue_purge(sk); 3398 tcp_fastopen_active_disable_ofo_check(sk); 3399 skb_rbtree_purge(&tp->out_of_order_queue); 3400 3401 inet->inet_dport = 0; 3402 3403 inet_bhash2_reset_saddr(sk); 3404 3405 WRITE_ONCE(sk->sk_shutdown, 0); 3406 sock_reset_flag(sk, SOCK_DONE); 3407 tp->srtt_us = 0; 3408 tp->mdev_us = jiffies_to_usecs(TCP_TIMEOUT_INIT); 3409 tp->rcv_rtt_last_tsecr = 0; 3410 3411 seq = tp->write_seq + tp->max_window + 2; 3412 if (!seq) 3413 seq = 1; 3414 WRITE_ONCE(tp->write_seq, seq); 3415 3416 icsk->icsk_backoff = 0; 3417 WRITE_ONCE(icsk->icsk_probes_out, 0); 3418 icsk->icsk_probes_tstamp = 0; 3419 icsk->icsk_rto = TCP_TIMEOUT_INIT; 3420 WRITE_ONCE(icsk->icsk_rto_min, TCP_RTO_MIN); 3421 WRITE_ONCE(icsk->icsk_delack_max, TCP_DELACK_MAX); 3422 WRITE_ONCE(tp->snd_ssthresh, TCP_INFINITE_SSTHRESH); 3423 tcp_snd_cwnd_set(tp, TCP_INIT_CWND); 3424 tp->snd_cwnd_cnt = 0; 3425 tp->is_cwnd_limited = 0; 3426 tp->max_packets_out = 0; 3427 tp->window_clamp = 0; 3428 tp->delivered = 0; 3429 tp->delivered_ce = 0; 3430 tp->accecn_fail_mode = 0; 3431 tp->saw_accecn_opt = TCP_ACCECN_OPT_NOT_SEEN; 3432 tcp_accecn_init_counters(tp); 3433 tp->prev_ecnfield = 0; 3434 tp->accecn_opt_tstamp = 0; 3435 tp->pkts_acked_ewma = 0; 3436 if (icsk->icsk_ca_initialized && icsk->icsk_ca_ops->release) 3437 icsk->icsk_ca_ops->release(sk); 3438 memset(icsk->icsk_ca_priv, 0, sizeof(icsk->icsk_ca_priv)); 3439 icsk->icsk_ca_initialized = 0; 3440 tcp_set_ca_state(sk, TCP_CA_Open); 3441 tp->is_sack_reneg = 0; 3442 tcp_clear_retrans(tp); 3443 tp->total_retrans = 0; 3444 inet_csk_delack_init(sk); > 3445 tcp_xdp_disconnect(sk); 3446 /* Initialize rcv_mss to TCP_MIN_MSS to avoid division by 0 3447 * issue in __tcp_select_window() 3448 */ 3449 icsk->icsk_ack.rcv_mss = TCP_MIN_MSS; 3450 memset(&tp->rx_opt, 0, sizeof(tp->rx_opt)); 3451 __sk_dst_reset(sk); 3452 dst_release(unrcu_pointer(xchg(&sk->sk_rx_dst, NULL))); 3453 tcp_saved_syn_free(tp); 3454 tp->compressed_ack = 0; 3455 tp->segs_in = 0; 3456 tp->segs_out = 0; 3457 tp->bytes_sent = 0; 3458 tp->bytes_acked = 0; 3459 tp->bytes_received = 0; 3460 tp->bytes_retrans = 0; 3461 tp->data_segs_in = 0; 3462 tp->data_segs_out = 0; 3463 tp->duplicate_sack[0].start_seq = 0; 3464 tp->duplicate_sack[0].end_seq = 0; 3465 tp->dsack_dups = 0; 3466 tp->reord_seen = 0; 3467 tp->retrans_out = 0; 3468 tp->sacked_out = 0; 3469 tp->tlp_high_seq = 0; 3470 tp->last_oow_ack_time = 0; 3471 tp->plb_rehash = 0; 3472 /* There's a bubble in the pipe until at least the first ACK. */ 3473 tp->app_limited = ~0U; 3474 tp->rate_app_limited = 1; 3475 tp->rack.mstamp = 0; 3476 tp->rack.advanced = 0; 3477 tp->rack.reo_wnd_steps = 1; 3478 tp->rack.last_delivered = 0; 3479 tp->rack.reo_wnd_persist = 0; 3480 tp->rack.dsack_seen = 0; 3481 tp->syn_data_acked = 0; 3482 tp->syn_fastopen_child = 0; 3483 tp->rx_opt.saw_tstamp = 0; 3484 tp->rx_opt.dsack = 0; 3485 tp->rx_opt.num_sacks = 0; 3486 tp->rcv_ooopack = 0; 3487 3488 3489 /* Clean up fastopen related fields */ 3490 req = rcu_dereference_protected(tp->fastopen_rsk, 3491 lockdep_sock_is_held(sk)); 3492 if (req) 3493 reqsk_fastopen_remove(sk, req, false); 3494 tcp_free_fastopen_req(tp); 3495 inet_clear_bit(DEFER_CONNECT, sk); 3496 tp->fastopen_client_fail = 0; 3497 3498 WARN_ON(inet->inet_num && !icsk->icsk_bind_hash); 3499 3500 if (sk->sk_frag.page) { 3501 put_page(sk->sk_frag.page); 3502 sk->sk_frag.page = NULL; 3503 sk->sk_frag.offset = 0; 3504 } 3505 sk_error_report(sk); 3506 return 0; 3507 } 3508 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki