[kbuild-all] [jkirsher-next-queue:dev-queue 182/183] drivers/net/ethernet/intel/iecm/iecm_lib.c:49:13: warning: no previous prototype for 'iecm_mb_intr_clean'

Hi Alice, First bad commit (maybe != root cause): tree: https://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue.git dev-queue head: 7c7dd63d321082aff5fb170d27beab8a756e3434 commit: cbcbf4f29548030710cedcaccbdacb5851a1f112 [182/183] iecm: Add iecm to the kernel build system config: alpha-allyesconfig (attached as .config) compiler: alpha-linux-gcc (GCC) 9.3.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout cbcbf4f29548030710cedcaccbdacb5851a1f112 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=alpha If you fix the issue, kindly add following tag as appropriate Reported-by: kbuild test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>, old ones prefixed by <<): 49 | irqreturn_t iecm_mb_intr_clean(int __always_unused irq, void *data) | ^~~~~~~~~~~~~~~~~~ 63 | void iecm_mb_irq_enable(struct iecm_adapter *adapter) | ^~~~~~~~~~~~~~~~~~ 77 | int iecm_mb_intr_req_irq(struct iecm_adapter *adapter) | ^~~~~~~~~~~~~~~~~~~~ 104 | void iecm_get_mb_vec_id(struct iecm_adapter *adapter) | ^~~~~~~~~~~~~~~~~~ 122 | int iecm_mb_intr_init(struct iecm_adapter *adapter) | ^~~~~~~~~~~~~~~~~ 140 | void iecm_intr_distribute(struct iecm_adapter *adapter) | ^~~~~~~~~~~~~~~~~~~~ 417 | int iecm_vport_rel(struct iecm_vport *vport) | ^~~~~~~~~~~~~~ 748 | void iecm_deinit_task(struct iecm_adapter *adapter) | ^~~~~~~~~~~~~~~~ In file included from drivers/net/ethernet/intel/include/iecm.h:50, from drivers/net/ethernet/intel/iecm/iecm_lib.c:6: drivers/net/ethernet/intel/include/iecm_txrx.h:293:30: warning: 'iecm_rx_ptype_lkup' defined but not used [-Wunused-const-variable=] 293 | struct iecm_rx_ptype_decoded iecm_rx_ptype_lkup[IECM_RX_SUPP_PTYPE] = { | ^~~~~~~~~~~~~~~~~~ -- 12 | void iecm_recv_event_msg(struct iecm_vport *vport) | ^~~~~~~~~~~~~~~~~~~ 61 | iecm_mb_clean(struct iecm_adapter *adapter) | ^~~~~~~~~~~~~ -- 84 | void iecm_tx_buf_rel_all(struct iecm_queue *txq) | ^~~~~~~~~~~~~~~~~~~ 115 | void iecm_tx_desc_rel(struct iecm_queue *txq, bool bufq) | ^~~~~~~~~~~~~~~~ 136 | void iecm_tx_desc_rel_all(struct iecm_vport *vport) | ^~~~~~~~~~~~~~~~~~~~ 312 | void iecm_rx_buf_rel_all(struct iecm_queue *rxq) | ^~~~~~~~~~~~~~~~~~~ 341 | void iecm_rx_desc_rel(struct iecm_queue *rxq, bool bufq, | ^~~~~~~~~~~~~~~~ 371 | void iecm_rx_desc_rel_all(struct iecm_vport *vport) | ^~~~~~~~~~~~~~~~~~~~ 486 | bool iecm_rx_hdr_buf_hw_alloc(struct iecm_queue *rxq, | ^~~~~~~~~~~~~~~~~~~~~~~~ drivers/net/ethernet/intel/iecm/iecm_txrx.c: In function 'iecm_rx_can_reuse_page': drivers/net/ethernet/intel/iecm/iecm_txrx.c:2510:28: error: 'last_offset' undeclared (first use in this function); did you mean 'page_offset'? 2510 | if (rx_buf->page_offset > last_offset) | ^~~~~~~~~~~ | page_offset drivers/net/ethernet/intel/iecm/iecm_txrx.c:2510:28: note: each undeclared identifier is reported only once for each function it appears in drivers/net/ethernet/intel/iecm/iecm_txrx.c: At top level: 3565 | int iecm_vport_splitq_napi_poll(struct napi_struct *napi, int budget) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ 3603 | void iecm_vport_intr_map_vector_to_qs(struct iecm_vport *vport) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 3715 | int iecm_vport_intr_alloc(struct iecm_vport *vport) | ^~~~~~~~~~~~~~~~~~~~~ In file included from drivers/net/ethernet/intel/include/iecm.h:50, from drivers/net/ethernet/intel/iecm/iecm_txrx.c:4: drivers/net/ethernet/intel/include/iecm_txrx.h:293:30: warning: 'iecm_rx_ptype_lkup' defined but not used [-Wunused-const-variable=] 293 | struct iecm_rx_ptype_decoded iecm_rx_ptype_lkup[IECM_RX_SUPP_PTYPE] = { | ^~~~~~~~~~~~~~~~~~ vim +/iecm_mb_intr_clean +49 drivers/net/ethernet/intel/iecm/iecm_lib.c abb358c18f4525 Alice Michael 2020-05-18 43 abb358c18f4525 Alice Michael 2020-05-18 44 /** abb358c18f4525 Alice Michael 2020-05-18 45 * iecm_mb_intr_clean - Interrupt handler for the mailbox abb358c18f4525 Alice Michael 2020-05-18 46 * @irq: interrupt number abb358c18f4525 Alice Michael 2020-05-18 47 * @data: pointer to the adapter structure abb358c18f4525 Alice Michael 2020-05-18 48 */ abb358c18f4525 Alice Michael 2020-05-18 @49 irqreturn_t iecm_mb_intr_clean(int __always_unused irq, void *data) abb358c18f4525 Alice Michael 2020-05-18 50 { 4227a8f4f793dc Alice Michael 2020-05-18 51 struct iecm_adapter *adapter = (struct iecm_adapter *)data; 4227a8f4f793dc Alice Michael 2020-05-18 52 4227a8f4f793dc Alice Michael 2020-05-18 53 set_bit(__IECM_MB_INTR_TRIGGER, adapter->flags); 4227a8f4f793dc Alice Michael 2020-05-18 54 queue_delayed_work(adapter->serv_wq, &adapter->serv_task, 4227a8f4f793dc Alice Michael 2020-05-18 55 msecs_to_jiffies(0)); 4227a8f4f793dc Alice Michael 2020-05-18 56 return IRQ_HANDLED; abb358c18f4525 Alice Michael 2020-05-18 57 } abb358c18f4525 Alice Michael 2020-05-18 58 abb358c18f4525 Alice Michael 2020-05-18 59 /** abb358c18f4525 Alice Michael 2020-05-18 60 * iecm_mb_irq_enable - Enable MSIX interrupt for the mailbox abb358c18f4525 Alice Michael 2020-05-18 61 * @adapter: adapter to get the hardware address for register write abb358c18f4525 Alice Michael 2020-05-18 62 */ abb358c18f4525 Alice Michael 2020-05-18 @63 void iecm_mb_irq_enable(struct iecm_adapter *adapter) abb358c18f4525 Alice Michael 2020-05-18 64 { 4227a8f4f793dc Alice Michael 2020-05-18 65 struct iecm_hw *hw = &adapter->hw; 4227a8f4f793dc Alice Michael 2020-05-18 66 struct iecm_intr_reg *intr = &adapter->mb_vector.intr_reg; 4227a8f4f793dc Alice Michael 2020-05-18 67 u32 val; 4227a8f4f793dc Alice Michael 2020-05-18 68 4227a8f4f793dc Alice Michael 2020-05-18 69 val = intr->dyn_ctl_intena_m | intr->dyn_ctl_itridx_m; 4227a8f4f793dc Alice Michael 2020-05-18 70 writel_relaxed(val, (u8 *)(hw->hw_addr + intr->dyn_ctl)); abb358c18f4525 Alice Michael 2020-05-18 71 } abb358c18f4525 Alice Michael 2020-05-18 72 abb358c18f4525 Alice Michael 2020-05-18 73 /** abb358c18f4525 Alice Michael 2020-05-18 74 * iecm_mb_intr_req_irq - Request irq for the mailbox interrupt abb358c18f4525 Alice Michael 2020-05-18 75 * @adapter: adapter structure to pass to the mailbox irq handler abb358c18f4525 Alice Michael 2020-05-18 76 */ abb358c18f4525 Alice Michael 2020-05-18 @77 int iecm_mb_intr_req_irq(struct iecm_adapter *adapter) abb358c18f4525 Alice Michael 2020-05-18 78 { 4227a8f4f793dc Alice Michael 2020-05-18 79 struct iecm_q_vector *mb_vector = &adapter->mb_vector; 4227a8f4f793dc Alice Michael 2020-05-18 80 int irq_num, mb_vidx = 0, err; 4227a8f4f793dc Alice Michael 2020-05-18 81 4227a8f4f793dc Alice Michael 2020-05-18 82 irq_num = adapter->msix_entries[mb_vidx].vector; 4227a8f4f793dc Alice Michael 2020-05-18 83 snprintf(mb_vector->name, sizeof(mb_vector->name) - 1, 4227a8f4f793dc Alice Michael 2020-05-18 84 "%s-%s-%d", dev_driver_string(&adapter->pdev->dev), 4227a8f4f793dc Alice Michael 2020-05-18 85 "Mailbox", mb_vidx); 4227a8f4f793dc Alice Michael 2020-05-18 86 err = request_irq(irq_num, adapter->irq_mb_handler, 0, 4227a8f4f793dc Alice Michael 2020-05-18 87 mb_vector->name, adapter); 4227a8f4f793dc Alice Michael 2020-05-18 88 if (err) { 4227a8f4f793dc Alice Michael 2020-05-18 89 dev_err(&adapter->pdev->dev, 4227a8f4f793dc Alice Michael 2020-05-18 90 "Request_irq for mailbox failed, error: %d\n", err); 4227a8f4f793dc Alice Michael 2020-05-18 91 return err; 4227a8f4f793dc Alice Michael 2020-05-18 92 } 4227a8f4f793dc Alice Michael 2020-05-18 93 set_bit(__IECM_MB_INTR_MODE, adapter->flags); 4227a8f4f793dc Alice Michael 2020-05-18 94 return 0; abb358c18f4525 Alice Michael 2020-05-18 95 } abb358c18f4525 Alice Michael 2020-05-18 96 abb358c18f4525 Alice Michael 2020-05-18 97 /** abb358c18f4525 Alice Michael 2020-05-18 98 * iecm_get_mb_vec_id - Get vector index for mailbox abb358c18f4525 Alice Michael 2020-05-18 99 * @adapter: adapter structure to access the vector chunks abb358c18f4525 Alice Michael 2020-05-18 100 * abb358c18f4525 Alice Michael 2020-05-18 101 * The first vector id in the requested vector chunks from the CP is for abb358c18f4525 Alice Michael 2020-05-18 102 * the mailbox abb358c18f4525 Alice Michael 2020-05-18 103 */ abb358c18f4525 Alice Michael 2020-05-18 @104 void iecm_get_mb_vec_id(struct iecm_adapter *adapter) abb358c18f4525 Alice Michael 2020-05-18 105 { 4227a8f4f793dc Alice Michael 2020-05-18 106 struct virtchnl_vector_chunks *vchunks; 4227a8f4f793dc Alice Michael 2020-05-18 107 struct virtchnl_vector_chunk *chunk; 4227a8f4f793dc Alice Michael 2020-05-18 108 4227a8f4f793dc Alice Michael 2020-05-18 109 if (adapter->req_vec_chunks) { 4227a8f4f793dc Alice Michael 2020-05-18 110 vchunks = &adapter->req_vec_chunks->vchunks; 4227a8f4f793dc Alice Michael 2020-05-18 111 chunk = &vchunks->num_vchunk[0]; 4227a8f4f793dc Alice Michael 2020-05-18 112 adapter->mb_vector.v_idx = chunk->start_vector_id; 4227a8f4f793dc Alice Michael 2020-05-18 113 } else { 4227a8f4f793dc Alice Michael 2020-05-18 114 adapter->mb_vector.v_idx = 0; 4227a8f4f793dc Alice Michael 2020-05-18 115 } abb358c18f4525 Alice Michael 2020-05-18 116 } abb358c18f4525 Alice Michael 2020-05-18 117 abb358c18f4525 Alice Michael 2020-05-18 118 /** abb358c18f4525 Alice Michael 2020-05-18 119 * iecm_mb_intr_init - Initialize the mailbox interrupt abb358c18f4525 Alice Michael 2020-05-18 120 * @adapter: adapter structure to store the mailbox vector abb358c18f4525 Alice Michael 2020-05-18 121 */ abb358c18f4525 Alice Michael 2020-05-18 @122 int iecm_mb_intr_init(struct iecm_adapter *adapter) abb358c18f4525 Alice Michael 2020-05-18 123 { 4227a8f4f793dc Alice Michael 2020-05-18 124 int err = 0; 4227a8f4f793dc Alice Michael 2020-05-18 125 4227a8f4f793dc Alice Michael 2020-05-18 126 iecm_get_mb_vec_id(adapter); 4227a8f4f793dc Alice Michael 2020-05-18 127 adapter->dev_ops.reg_ops.mb_intr_reg_init(adapter); 4227a8f4f793dc Alice Michael 2020-05-18 128 adapter->irq_mb_handler = iecm_mb_intr_clean; 4227a8f4f793dc Alice Michael 2020-05-18 129 err = iecm_mb_intr_req_irq(adapter); 4227a8f4f793dc Alice Michael 2020-05-18 130 return err; abb358c18f4525 Alice Michael 2020-05-18 131 } abb358c18f4525 Alice Michael 2020-05-18 132 abb358c18f4525 Alice Michael 2020-05-18 133 /** abb358c18f4525 Alice Michael 2020-05-18 134 * iecm_intr_distribute - Distribute MSIX vectors abb358c18f4525 Alice Michael 2020-05-18 135 * @adapter: adapter structure to get the vports abb358c18f4525 Alice Michael 2020-05-18 136 * abb358c18f4525 Alice Michael 2020-05-18 137 * Distribute the MSIX vectors acquired from the OS to the vports based on the abb358c18f4525 Alice Michael 2020-05-18 138 * num of vectors requested by each vport abb358c18f4525 Alice Michael 2020-05-18 139 */ abb358c18f4525 Alice Michael 2020-05-18 @140 void iecm_intr_distribute(struct iecm_adapter *adapter) abb358c18f4525 Alice Michael 2020-05-18 141 { 4227a8f4f793dc Alice Michael 2020-05-18 142 struct iecm_vport *vport; 4227a8f4f793dc Alice Michael 2020-05-18 143 4227a8f4f793dc Alice Michael 2020-05-18 144 vport = adapter->vports[0]; 4227a8f4f793dc Alice Michael 2020-05-18 145 if (adapter->num_msix_entries != adapter->num_req_msix) 4227a8f4f793dc Alice Michael 2020-05-18 146 vport->num_q_vectors = adapter->num_msix_entries - 4227a8f4f793dc Alice Michael 2020-05-18 147 IECM_MAX_NONQ_VEC - IECM_MIN_RDMA_VEC; abb358c18f4525 Alice Michael 2020-05-18 148 } abb358c18f4525 Alice Michael 2020-05-18 149 :::::: The code at line 49 was first introduced by commit :::::: abb358c18f452548c4540e1de514e231a4ff587a iecm: Common module introduction and function stubs :::::: TO: Alice Michael <alice.michael(a)intel.com&gt; :::::: CC: Jeff Kirsher <jeffrey.t.kirsher(a)intel.com&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org