tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: d96cd567c8d8d584405abe92c2576bf58202fa6e commit: eb923245b9deef21ddd337c4e1e081c407a891fd [1605/1605] tipc: fix unlimited bundling of small messages config: x86_64-buildonly-randconfig-2002-20250501 (https://download.01.org/0day-ci/archive/20250702/202507021034.5BJRugpy-lkp@i...) compiler: clang version 20.1.2 (https://github.com/llvm/llvm-project 58df0ef89dd64126512e4ee27b4ac3fd8ddf6247) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250702/202507021034.5BJRugpy-lkp@i...) 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 <lkp@intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202507021034.5BJRugpy-lkp@intel.com/ All warnings (new ones prefixed by >>): net/tipc/link.c:198: warning: Function parameter or member 'session' not described in 'tipc_link' net/tipc/link.c:198: warning: Function parameter or member 'snd_nxt_state' not described in 'tipc_link' net/tipc/link.c:198: warning: Function parameter or member 'rcv_nxt_state' not described in 'tipc_link' net/tipc/link.c:198: warning: Function parameter or member 'in_session' not described in 'tipc_link' net/tipc/link.c:198: warning: Function parameter or member 'active' not described in 'tipc_link' net/tipc/link.c:198: warning: Function parameter or member 'if_name' not described in 'tipc_link' net/tipc/link.c:198: warning: Function parameter or member 'rst_cnt' not described in 'tipc_link' net/tipc/link.c:198: warning: Function parameter or member 'drop_point' not described in 'tipc_link' net/tipc/link.c:198: warning: Function parameter or member 'failover_reasm_skb' not described in 'tipc_link' net/tipc/link.c:198: warning: Function parameter or member 'transmq' not described in 'tipc_link' net/tipc/link.c:198: warning: Function parameter or member 'backlog' not described in 'tipc_link' net/tipc/link.c:198: warning: Function parameter or member 'backlog.len' not described in 'tipc_link' net/tipc/link.c:198: warning: Function parameter or member 'backlog.limit' not described in 'tipc_link'

...

net/tipc/link.c:198: warning: Function parameter or member 'backlog.target_bskb' not described in 'tipc_link' net/tipc/link.c:198: warning: Function parameter or member 'snd_nxt' not described in 'tipc_link' net/tipc/link.c:198: warning: Function parameter or member 'last_retransm' not described in 'tipc_link' net/tipc/link.c:198: warning: Function parameter or member 'window' not described in 'tipc_link' net/tipc/link.c:198: warning: Function parameter or member 'rcv_unacked' not described in 'tipc_link' net/tipc/link.c:198: warning: Function parameter or member 'deferdq' not described in 'tipc_link' net/tipc/link.c:198: warning: Function parameter or member 'bc_rcvlink' not described in 'tipc_link' net/tipc/link.c:198: warning: Function parameter or member 'bc_sndlink' not described in 'tipc_link' net/tipc/link.c:198: warning: Function parameter or member 'prev_retr' not described in 'tipc_link' net/tipc/link.c:198: warning: Function parameter or member 'prev_from' not described in 'tipc_link' net/tipc/link.c:198: warning: Function parameter or member 'prev_to' not described in 'tipc_link' net/tipc/link.c:198: warning: Function parameter or member 'nack_state' not described in 'tipc_link' net/tipc/link.c:198: warning: Function parameter or member 'bc_peer_is_up' not described in 'tipc_link' net/tipc/link.c:450: warning: Function parameter or member 'net' not described in 'tipc_link_create' net/tipc/link.c:450: warning: Function parameter or member 'self' not described in 'tipc_link_create' net/tipc/link.c:450: warning: Function parameter or member 'peer_id' not described in 'tipc_link_create' net/tipc/link.c:450: warning: Excess function parameter 'n' description in 'tipc_link_create' net/tipc/link.c:450: warning: Excess function parameter 'ownnode' description in 'tipc_link_create' net/tipc/link.c:519: warning: Function parameter or member 'net' not described in 'tipc_link_bc_create' net/tipc/link.c:519: warning: Function parameter or member 'ownnode' not described in 'tipc_link_bc_create' net/tipc/link.c:519: warning: Function parameter or member 'peer' not described in 'tipc_link_bc_create' net/tipc/link.c:519: warning: Function parameter or member 'peer_caps' not described in 'tipc_link_bc_create' net/tipc/link.c:519: warning: Function parameter or member 'bc_sndlink' not described in 'tipc_link_bc_create' net/tipc/link.c:519: warning: Excess function parameter 'n' description in 'tipc_link_bc_create' net/tipc/link.c:903: warning: Function parameter or member 'l' not described in 'tipc_link_xmit' net/tipc/link.c:903: warning: Excess function parameter 'link' description in 'tipc_link_xmit'

vim +198 net/tipc/link.c 38206d59390684 Jon Paul Maloy 2015-11-19 78 38206d59390684 Jon Paul Maloy 2015-11-19 79 /** 38206d59390684 Jon Paul Maloy 2015-11-19 80 * struct tipc_link - TIPC link data structure 38206d59390684 Jon Paul Maloy 2015-11-19 81 * @addr: network address of link's peer node 38206d59390684 Jon Paul Maloy 2015-11-19 82 * @name: link name character string 38206d59390684 Jon Paul Maloy 2015-11-19 83 * @media_addr: media address to use when sending messages over link 38206d59390684 Jon Paul Maloy 2015-11-19 84 * @timer: link timer 38206d59390684 Jon Paul Maloy 2015-11-19 85 * @net: pointer to namespace struct 38206d59390684 Jon Paul Maloy 2015-11-19 86 * @refcnt: reference counter for permanent references (owner node & timer) 38206d59390684 Jon Paul Maloy 2015-11-19 87 * @peer_session: link session # being used by peer end of link 38206d59390684 Jon Paul Maloy 2015-11-19 88 * @peer_bearer_id: bearer id used by link's peer endpoint 38206d59390684 Jon Paul Maloy 2015-11-19 89 * @bearer_id: local bearer id used by link 38206d59390684 Jon Paul Maloy 2015-11-19 90 * @tolerance: minimum link continuity loss needed to reset link [in ms] 38206d59390684 Jon Paul Maloy 2015-11-19 91 * @abort_limit: # of unacknowledged continuity probes needed to reset link 38206d59390684 Jon Paul Maloy 2015-11-19 92 * @state: current state of link FSM 38206d59390684 Jon Paul Maloy 2015-11-19 93 * @peer_caps: bitmap describing capabilities of peer node 38206d59390684 Jon Paul Maloy 2015-11-19 94 * @silent_intv_cnt: # of timer intervals without any reception from peer 38206d59390684 Jon Paul Maloy 2015-11-19 95 * @proto_msg: template for control messages generated by link 38206d59390684 Jon Paul Maloy 2015-11-19 96 * @pmsg: convenience pointer to "proto_msg" field 38206d59390684 Jon Paul Maloy 2015-11-19 97 * @priority: current link priority 38206d59390684 Jon Paul Maloy 2015-11-19 98 * @net_plane: current link network plane ('A' through 'H') 35c55c9877f8de Jon Paul Maloy 2016-06-13 99 * @mon_state: cookie with information needed by link monitor 38206d59390684 Jon Paul Maloy 2015-11-19 100 * @backlog_limit: backlog queue congestion thresholds (indexed by importance) 38206d59390684 Jon Paul Maloy 2015-11-19 101 * @exp_msg_count: # of tunnelled messages expected during link changeover 38206d59390684 Jon Paul Maloy 2015-11-19 102 * @reset_rcv_checkpt: seq # of last acknowledged message at time of link reset 38206d59390684 Jon Paul Maloy 2015-11-19 103 * @mtu: current maximum packet size for this link 38206d59390684 Jon Paul Maloy 2015-11-19 104 * @advertised_mtu: advertised own mtu when link is being established 38206d59390684 Jon Paul Maloy 2015-11-19 105 * @transmitq: queue for sent, non-acked messages 38206d59390684 Jon Paul Maloy 2015-11-19 106 * @backlogq: queue for messages waiting to be sent 38206d59390684 Jon Paul Maloy 2015-11-19 107 * @snt_nxt: next sequence number to use for outbound messages 38206d59390684 Jon Paul Maloy 2015-11-19 108 * @last_retransmitted: sequence number of most recently retransmitted message a4dc70d46cf1a0 Jon Maloy 2018-07-06 109 * @stale_cnt: counter for number of identical retransmit attempts a4dc70d46cf1a0 Jon Maloy 2018-07-06 110 * @stale_limit: time when repeated identical retransmits must force link reset 38206d59390684 Jon Paul Maloy 2015-11-19 111 * @ackers: # of peers that needs to ack each packet before it can be released 38206d59390684 Jon Paul Maloy 2015-11-19 112 * @acked: # last packet acked by a certain peer. Used for broadcast. 38206d59390684 Jon Paul Maloy 2015-11-19 113 * @rcv_nxt: next sequence number to expect for inbound messages 38206d59390684 Jon Paul Maloy 2015-11-19 114 * @deferred_queue: deferred queue saved OOS b'cast message received from node 38206d59390684 Jon Paul Maloy 2015-11-19 115 * @unacked_window: # of inbound messages rx'd without ack'ing back to peer 38206d59390684 Jon Paul Maloy 2015-11-19 116 * @inputq: buffer queue for messages to be delivered upwards 38206d59390684 Jon Paul Maloy 2015-11-19 117 * @namedq: buffer queue for name table messages to be delivered upwards 38206d59390684 Jon Paul Maloy 2015-11-19 118 * @next_out: ptr to first unsent outbound message in queue 38206d59390684 Jon Paul Maloy 2015-11-19 119 * @wakeupq: linked list of wakeup msgs waiting for link congestion to abate 38206d59390684 Jon Paul Maloy 2015-11-19 120 * @long_msg_seq_no: next identifier to use for outbound fragmented messages 38206d59390684 Jon Paul Maloy 2015-11-19 121 * @reasm_buf: head of partially reassembled inbound message fragments 38206d59390684 Jon Paul Maloy 2015-11-19 122 * @bc_rcvr: marks that this is a broadcast receiver link 38206d59390684 Jon Paul Maloy 2015-11-19 123 * @stats: collects statistics regarding link activity 38206d59390684 Jon Paul Maloy 2015-11-19 124 */ 38206d59390684 Jon Paul Maloy 2015-11-19 125 struct tipc_link { 38206d59390684 Jon Paul Maloy 2015-11-19 126 u32 addr; 38206d59390684 Jon Paul Maloy 2015-11-19 127 char name[TIPC_MAX_LINK_NAME]; 38206d59390684 Jon Paul Maloy 2015-11-19 128 struct net *net; 38206d59390684 Jon Paul Maloy 2015-11-19 129 38206d59390684 Jon Paul Maloy 2015-11-19 130 /* Management and link supervision data */ 7ea817f4e8322f Jon Maloy 2018-07-10 131 u16 peer_session; 7ea817f4e8322f Jon Maloy 2018-07-10 132 u16 session; 9012de50895601 Jon Maloy 2018-07-10 133 u16 snd_nxt_state; 9012de50895601 Jon Maloy 2018-07-10 134 u16 rcv_nxt_state; 38206d59390684 Jon Paul Maloy 2015-11-19 135 u32 peer_bearer_id; 38206d59390684 Jon Paul Maloy 2015-11-19 136 u32 bearer_id; 38206d59390684 Jon Paul Maloy 2015-11-19 137 u32 tolerance; 38206d59390684 Jon Paul Maloy 2015-11-19 138 u32 abort_limit; 38206d59390684 Jon Paul Maloy 2015-11-19 139 u32 state; 38206d59390684 Jon Paul Maloy 2015-11-19 140 u16 peer_caps; 7ea817f4e8322f Jon Maloy 2018-07-10 141 bool in_session; 38206d59390684 Jon Paul Maloy 2015-11-19 142 bool active; 38206d59390684 Jon Paul Maloy 2015-11-19 143 u32 silent_intv_cnt; e74a386d70c793 Jon Paul Maloy 2016-03-03 144 char if_name[TIPC_MAX_IF_NAME]; 38206d59390684 Jon Paul Maloy 2015-11-19 145 u32 priority; 38206d59390684 Jon Paul Maloy 2015-11-19 146 char net_plane; 35c55c9877f8de Jon Paul Maloy 2016-06-13 147 struct tipc_mon_state mon_state; 88e8ac7000dc7c Jon Paul Maloy 2016-04-15 148 u16 rst_cnt; 38206d59390684 Jon Paul Maloy 2015-11-19 149 38206d59390684 Jon Paul Maloy 2015-11-19 150 /* Failover/synch */ 38206d59390684 Jon Paul Maloy 2015-11-19 151 u16 drop_point; 38206d59390684 Jon Paul Maloy 2015-11-19 152 struct sk_buff *failover_reasm_skb; 38206d59390684 Jon Paul Maloy 2015-11-19 153 38206d59390684 Jon Paul Maloy 2015-11-19 154 /* Max packet negotiation */ 38206d59390684 Jon Paul Maloy 2015-11-19 155 u16 mtu; 38206d59390684 Jon Paul Maloy 2015-11-19 156 u16 advertised_mtu; 38206d59390684 Jon Paul Maloy 2015-11-19 157 38206d59390684 Jon Paul Maloy 2015-11-19 158 /* Sending */ 38206d59390684 Jon Paul Maloy 2015-11-19 159 struct sk_buff_head transmq; 38206d59390684 Jon Paul Maloy 2015-11-19 160 struct sk_buff_head backlogq; 38206d59390684 Jon Paul Maloy 2015-11-19 161 struct { 38206d59390684 Jon Paul Maloy 2015-11-19 162 u16 len; 38206d59390684 Jon Paul Maloy 2015-11-19 163 u16 limit; eb923245b9deef Tuong Lien 2019-10-10 164 struct sk_buff *target_bskb; 38206d59390684 Jon Paul Maloy 2015-11-19 165 } backlog[5]; 38206d59390684 Jon Paul Maloy 2015-11-19 166 u16 snd_nxt; 38206d59390684 Jon Paul Maloy 2015-11-19 167 u16 last_retransm; 38206d59390684 Jon Paul Maloy 2015-11-19 168 u16 window; a4dc70d46cf1a0 Jon Maloy 2018-07-06 169 u16 stale_cnt; a4dc70d46cf1a0 Jon Maloy 2018-07-06 170 unsigned long stale_limit; 38206d59390684 Jon Paul Maloy 2015-11-19 171 38206d59390684 Jon Paul Maloy 2015-11-19 172 /* Reception */ 38206d59390684 Jon Paul Maloy 2015-11-19 173 u16 rcv_nxt; 38206d59390684 Jon Paul Maloy 2015-11-19 174 u32 rcv_unacked; 38206d59390684 Jon Paul Maloy 2015-11-19 175 struct sk_buff_head deferdq; 38206d59390684 Jon Paul Maloy 2015-11-19 176 struct sk_buff_head *inputq; 38206d59390684 Jon Paul Maloy 2015-11-19 177 struct sk_buff_head *namedq; 38206d59390684 Jon Paul Maloy 2015-11-19 178 38206d59390684 Jon Paul Maloy 2015-11-19 179 /* Congestion handling */ 38206d59390684 Jon Paul Maloy 2015-11-19 180 struct sk_buff_head wakeupq; 38206d59390684 Jon Paul Maloy 2015-11-19 181 38206d59390684 Jon Paul Maloy 2015-11-19 182 /* Fragmentation/reassembly */ 38206d59390684 Jon Paul Maloy 2015-11-19 183 struct sk_buff *reasm_buf; 38206d59390684 Jon Paul Maloy 2015-11-19 184 38206d59390684 Jon Paul Maloy 2015-11-19 185 /* Broadcast */ 38206d59390684 Jon Paul Maloy 2015-11-19 186 u16 ackers; 38206d59390684 Jon Paul Maloy 2015-11-19 187 u16 acked; 38206d59390684 Jon Paul Maloy 2015-11-19 188 struct tipc_link *bc_rcvlink; 38206d59390684 Jon Paul Maloy 2015-11-19 189 struct tipc_link *bc_sndlink; 7c4a54b963b68e Jon Paul Maloy 2016-09-01 190 unsigned long prev_retr; 7c4a54b963b68e Jon Paul Maloy 2016-09-01 191 u16 prev_from; 7c4a54b963b68e Jon Paul Maloy 2016-09-01 192 u16 prev_to; 7c4a54b963b68e Jon Paul Maloy 2016-09-01 193 u8 nack_state; 38206d59390684 Jon Paul Maloy 2015-11-19 194 bool bc_peer_is_up; 38206d59390684 Jon Paul Maloy 2015-11-19 195 38206d59390684 Jon Paul Maloy 2015-11-19 196 /* Statistics */ 38206d59390684 Jon Paul Maloy 2015-11-19 197 struct tipc_stats stats; 38206d59390684 Jon Paul Maloy 2015-11-19 @198 }; 38206d59390684 Jon Paul Maloy 2015-11-19 199 :::::: The code at line 198 was first introduced by commit :::::: 38206d5939068415c413ac253be6f364d06e672f tipc: narrow down interface towards struct tipc_link :::::: TO: Jon Paul Maloy <jon.maloy@ericsson.com> :::::: CC: David S. Miller <davem@davemloft.net> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki