[kbuild-all] [linux-next:master 13398/13940] drivers/net/ethernet/sfc/ef100_nic.c:610: undefined reference to `__umoddi3'

tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: d15fe4ec043588beee823781602ddb51d0bc84c8 commit: adcfc3482ffff813fa2c34e5902005853f79c2aa [13398/13940] sfc_ef100: read Design Parameters at probe time config: microblaze-randconfig-r032-20200805 (attached as .config) compiler: microblaze-linux-gcc (GCC) 9.3.0 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 checkout adcfc3482ffff813fa2c34e5902005853f79c2aa # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=microblaze 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 >>): microblaze-linux-ld: drivers/net/ethernet/sfc/ef100_nic.o: in function `ef100_process_design_param': vim +610 drivers/net/ethernet/sfc/ef100_nic.c 567 568 static int ef100_process_design_param(struct efx_nic *efx, 569 const struct ef100_tlv_state *reader) 570 { 571 struct ef100_nic_data *nic_data = efx->nic_data; 572 573 switch (reader->type) { 574 case ESE_EF100_DP_GZ_PAD: /* padding, skip it */ 575 return 0; 576 case ESE_EF100_DP_GZ_PARTIAL_TSTAMP_SUB_NANO_BITS: 577 /* Driver doesn't support timestamping yet, so we don't care */ 578 return 0; 579 case ESE_EF100_DP_GZ_EVQ_UNSOL_CREDIT_SEQ_BITS: 580 /* Driver doesn't support unsolicited-event credits yet, so 581 * we don't care 582 */ 583 return 0; 584 case ESE_EF100_DP_GZ_NMMU_GROUP_SIZE: 585 /* Driver doesn't manage the NMMU (so we don't care) */ 586 return 0; 587 case ESE_EF100_DP_GZ_RX_L4_CSUM_PROTOCOLS: 588 /* Driver uses CHECKSUM_COMPLETE, so we don't care about 589 * protocol checksum validation 590 */ 591 return 0; 592 case ESE_EF100_DP_GZ_TSO_MAX_HDR_LEN: 593 nic_data->tso_max_hdr_len = min_t(u64, reader->value, 0xffff); 594 return 0; 595 case ESE_EF100_DP_GZ_TSO_MAX_HDR_NUM_SEGS: 596 /* We always put HDR_NUM_SEGS=1 in our TSO descriptors */ 597 if (!reader->value) { 598 netif_err(efx, probe, efx->net_dev, 599 "TSO_MAX_HDR_NUM_SEGS < 1\n"); 600 return -EOPNOTSUPP; 601 } 602 return 0; 603 case ESE_EF100_DP_GZ_RXQ_SIZE_GRANULARITY: 604 case ESE_EF100_DP_GZ_TXQ_SIZE_GRANULARITY: 605 /* Our TXQ and RXQ sizes are always power-of-two and thus divisible by 606 * EFX_MIN_DMAQ_SIZE, so we just need to check that 607 * EFX_MIN_DMAQ_SIZE is divisible by GRANULARITY. 608 * This is very unlikely to fail. 609 */ 611 netif_err(efx, probe, efx->net_dev, 612 "%s size granularity is %llu, can't guarantee safety\n", 613 reader->type == ESE_EF100_DP_GZ_RXQ_SIZE_GRANULARITY ? "RXQ" : "TXQ", 614 reader->value); 615 return -EOPNOTSUPP; 616 } 617 return 0; 618 case ESE_EF100_DP_GZ_TSO_MAX_PAYLOAD_LEN: 619 nic_data->tso_max_payload_len = min_t(u64, reader->value, GSO_MAX_SIZE); 620 efx->net_dev->gso_max_size = nic_data->tso_max_payload_len; 621 return 0; 622 case ESE_EF100_DP_GZ_TSO_MAX_PAYLOAD_NUM_SEGS: 623 nic_data->tso_max_payload_num_segs = min_t(u64, reader->value, 0xffff); 624 efx->net_dev->gso_max_segs = nic_data->tso_max_payload_num_segs; 625 return 0; 626 case ESE_EF100_DP_GZ_TSO_MAX_NUM_FRAMES: 627 nic_data->tso_max_frames = min_t(u64, reader->value, 0xffff); 628 return 0; 629 case ESE_EF100_DP_GZ_COMPAT: 630 if (reader->value) { 631 netif_err(efx, probe, efx->net_dev, 632 "DP_COMPAT has unknown bits %#llx, driver not compatible with this hw\n", 633 reader->value); 634 return -EOPNOTSUPP; 635 } 636 return 0; 637 case ESE_EF100_DP_GZ_MEM2MEM_MAX_LEN: 638 /* Driver doesn't use mem2mem transfers */ 639 return 0; 640 case ESE_EF100_DP_GZ_EVQ_TIMER_TICK_NANOS: 641 /* Driver doesn't currently use EVQ_TIMER */ 642 return 0; 643 case ESE_EF100_DP_GZ_NMMU_PAGE_SIZES: 644 /* Driver doesn't manage the NMMU (so we don't care) */ 645 return 0; 646 case ESE_EF100_DP_GZ_VI_STRIDES: 647 /* We never try to set the VI stride, and we don't rely on 648 * being able to find VIs past VI 0 until after we've learned 649 * the current stride from MC_CMD_GET_CAPABILITIES. 650 * So the value of this shouldn't matter. 651 */ 652 if (reader->value != ESE_EF100_DP_GZ_VI_STRIDES_DEFAULT) 653 netif_dbg(efx, probe, efx->net_dev, 654 "NIC has other than default VI_STRIDES (mask " 655 "%#llx), early probing might use wrong one\n", 656 reader->value); 657 return 0; 658 case ESE_EF100_DP_GZ_RX_MAX_RUNT: 659 /* Driver doesn't look at L2_STATUS:LEN_ERR bit, so we don't 660 * care whether it indicates runt or overlength for any given 661 * packet, so we don't care about this parameter. 662 */ 663 return 0; 664 default: 665 /* Host interface says "Drivers should ignore design parameters 666 * that they do not recognise." 667 */ 668 netif_dbg(efx, probe, efx->net_dev, 669 "Ignoring unrecognised design parameter %u\n", 670 reader->type); 671 return 0; 672 } 673 } 674 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org