Hi Yury, kernel test robot noticed the following build errors:
[auto build test ERROR on tnguy-next-queue/dev-queue] [also build test ERROR on tnguy-net-queue/dev-queue linus/master v6.19-rc1 next-20251217] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Yury-Norov-NVIDIA/i40e-drop-useless-bitmap_weight-call-in-i40e_set_rxfh_fields/20251216-083033 base: https://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue.git dev-queue patch link: https://lore.kernel.org/r/20251216002852.334561-1-yury.norov%40gmail.com patch subject: [PATCH] i40e: drop useless bitmap_weight() call in i40e_set_rxfh_fields() config: x86_64-rhel-9.4-rust (https://download.01.org/0day-ci/archive/20251218/[email protected]/config) compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261) rustc: rustc 1.88.0 (6b00bc388 2025-06-23) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251218/[email protected]/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 <[email protected]> | Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/ All errors (new ones prefixed by >>): >> drivers/net/ethernet/intel/i40e/i40e_ethtool.c:3711:19: error: use of >> undeclared identifier 'flow_id' 3711 | for_each_set_bit(flow_id, flow_pctypes, FLOW_PCTYPES_SIZE) { | ^ >> drivers/net/ethernet/intel/i40e/i40e_ethtool.c:3711:19: error: use of >> undeclared identifier 'flow_id' >> drivers/net/ethernet/intel/i40e/i40e_ethtool.c:3711:19: error: use of >> undeclared identifier 'flow_id' >> drivers/net/ethernet/intel/i40e/i40e_ethtool.c:3711:19: error: use of >> undeclared identifier 'flow_id' >> drivers/net/ethernet/intel/i40e/i40e_ethtool.c:3711:19: error: use of >> undeclared identifier 'flow_id' drivers/net/ethernet/intel/i40e/i40e_ethtool.c:3712:62: error: use of undeclared identifier 'flow_id' 3712 | i_setc = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, flow_id)) | | ^ drivers/net/ethernet/intel/i40e/i40e_ethtool.c:3713:56: error: use of undeclared identifier 'flow_id' 3713 | ((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, flow_id)) << 32); | ^ drivers/net/ethernet/intel/i40e/i40e_ethtool.c:3716:49: error: use of undeclared identifier 'flow_id' 3716 | i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, flow_id), | ^ drivers/net/ethernet/intel/i40e/i40e_ethtool.c:3718:49: error: use of undeclared identifier 'flow_id' 3718 | i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, flow_id), | ^ drivers/net/ethernet/intel/i40e/i40e_ethtool.c:3720:19: error: use of undeclared identifier 'flow_id' 3720 | hena |= BIT_ULL(flow_id); | ^ 10 errors generated. vim +/flow_id +3711 drivers/net/ethernet/intel/i40e/i40e_ethtool.c eb0dd6e4a3b3df Carolyn Wyborny 2016-07-27 3614 3b32c9932853e1 Slawomir Laba 2022-10-24 3615 #define FLOW_PCTYPES_SIZE 64 5a28983710b739 Jakub Kicinski 2025-06-14 3616 static int i40e_set_rxfh_fields(struct net_device *netdev, 5a28983710b739 Jakub Kicinski 2025-06-14 3617 const struct ethtool_rxfh_fields *nfc, 5a28983710b739 Jakub Kicinski 2025-06-14 3618 struct netlink_ext_ack *extack) c7d05ca89f8e40 Jesse Brandeburg 2013-09-11 3619 { 5a28983710b739 Jakub Kicinski 2025-06-14 3620 struct i40e_netdev_priv *np = netdev_priv(netdev); 5a28983710b739 Jakub Kicinski 2025-06-14 3621 struct i40e_vsi *vsi = np->vsi; 5a28983710b739 Jakub Kicinski 2025-06-14 3622 struct i40e_pf *pf = vsi->back; c7d05ca89f8e40 Jesse Brandeburg 2013-09-11 3623 struct i40e_hw *hw = &pf->hw; 272cdaf2472ab7 Shannon Nelson 2016-02-17 3624 u64 hena = (u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(0)) | 272cdaf2472ab7 Shannon Nelson 2016-02-17 3625 ((u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(1)) << 32); 3b32c9932853e1 Slawomir Laba 2022-10-24 3626 DECLARE_BITMAP(flow_pctypes, FLOW_PCTYPES_SIZE); eb0dd6e4a3b3df Carolyn Wyborny 2016-07-27 3627 u64 i_set, i_setc; c7d05ca89f8e40 Jesse Brandeburg 2013-09-11 3628 3b32c9932853e1 Slawomir Laba 2022-10-24 3629 bitmap_zero(flow_pctypes, FLOW_PCTYPES_SIZE); 3b32c9932853e1 Slawomir Laba 2022-10-24 3630 70756d0a4727fe Ivan Vecera 2023-11-13 3631 if (test_bit(I40E_FLAG_MFP_ENA, pf->flags)) { 83d14c595e011f Carolyn Wyborny 2017-06-07 3632 dev_err(&pf->pdev->dev, 83d14c595e011f Carolyn Wyborny 2017-06-07 3633 "Change of RSS hash input set is not supported when MFP mode is enabled\n"); 83d14c595e011f Carolyn Wyborny 2017-06-07 3634 return -EOPNOTSUPP; 83d14c595e011f Carolyn Wyborny 2017-06-07 3635 } 83d14c595e011f Carolyn Wyborny 2017-06-07 3636 c7d05ca89f8e40 Jesse Brandeburg 2013-09-11 3637 /* RSS does not support anything other than hashing c7d05ca89f8e40 Jesse Brandeburg 2013-09-11 3638 * to queues on src and dst IPs and ports c7d05ca89f8e40 Jesse Brandeburg 2013-09-11 3639 */ c7d05ca89f8e40 Jesse Brandeburg 2013-09-11 3640 if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST | c7d05ca89f8e40 Jesse Brandeburg 2013-09-11 3641 RXH_L4_B_0_1 | RXH_L4_B_2_3)) c7d05ca89f8e40 Jesse Brandeburg 2013-09-11 3642 return -EINVAL; c7d05ca89f8e40 Jesse Brandeburg 2013-09-11 3643 c7d05ca89f8e40 Jesse Brandeburg 2013-09-11 3644 switch (nfc->flow_type) { c7d05ca89f8e40 Jesse Brandeburg 2013-09-11 3645 case TCP_V4_FLOW: 141d0c9037ca57 Jacob Keller 2025-05-05 3646 set_bit(LIBIE_FILTER_PCTYPE_NONF_IPV4_TCP, flow_pctypes); 0e8b9fdd40fe65 Ivan Vecera 2023-11-13 3647 if (test_bit(I40E_HW_CAP_MULTI_TCP_UDP_RSS_PCTYPE, 0e8b9fdd40fe65 Ivan Vecera 2023-11-13 3648 pf->hw.caps)) 141d0c9037ca57 Jacob Keller 2025-05-05 3649 set_bit(LIBIE_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK, 3b32c9932853e1 Slawomir Laba 2022-10-24 3650 flow_pctypes); c7d05ca89f8e40 Jesse Brandeburg 2013-09-11 3651 break; c7d05ca89f8e40 Jesse Brandeburg 2013-09-11 3652 case TCP_V6_FLOW: 141d0c9037ca57 Jacob Keller 2025-05-05 3653 set_bit(LIBIE_FILTER_PCTYPE_NONF_IPV6_TCP, flow_pctypes); 0e8b9fdd40fe65 Ivan Vecera 2023-11-13 3654 if (test_bit(I40E_HW_CAP_MULTI_TCP_UDP_RSS_PCTYPE, 0e8b9fdd40fe65 Ivan Vecera 2023-11-13 3655 pf->hw.caps)) 141d0c9037ca57 Jacob Keller 2025-05-05 3656 set_bit(LIBIE_FILTER_PCTYPE_NONF_IPV6_TCP_SYN_NO_ACK, 3b32c9932853e1 Slawomir Laba 2022-10-24 3657 flow_pctypes); c7d05ca89f8e40 Jesse Brandeburg 2013-09-11 3658 break; c7d05ca89f8e40 Jesse Brandeburg 2013-09-11 3659 case UDP_V4_FLOW: 141d0c9037ca57 Jacob Keller 2025-05-05 3660 set_bit(LIBIE_FILTER_PCTYPE_NONF_IPV4_UDP, flow_pctypes); 0e8b9fdd40fe65 Ivan Vecera 2023-11-13 3661 if (test_bit(I40E_HW_CAP_MULTI_TCP_UDP_RSS_PCTYPE, 0e8b9fdd40fe65 Ivan Vecera 2023-11-13 3662 pf->hw.caps)) { 141d0c9037ca57 Jacob Keller 2025-05-05 3663 set_bit(LIBIE_FILTER_PCTYPE_NONF_UNICAST_IPV4_UDP, 3b32c9932853e1 Slawomir Laba 2022-10-24 3664 flow_pctypes); 141d0c9037ca57 Jacob Keller 2025-05-05 3665 set_bit(LIBIE_FILTER_PCTYPE_NONF_MULTICAST_IPV4_UDP, 3b32c9932853e1 Slawomir Laba 2022-10-24 3666 flow_pctypes); 3b32c9932853e1 Slawomir Laba 2022-10-24 3667 } 141d0c9037ca57 Jacob Keller 2025-05-05 3668 hena |= BIT_ULL(LIBIE_FILTER_PCTYPE_FRAG_IPV4); c7d05ca89f8e40 Jesse Brandeburg 2013-09-11 3669 break; c7d05ca89f8e40 Jesse Brandeburg 2013-09-11 3670 case UDP_V6_FLOW: 141d0c9037ca57 Jacob Keller 2025-05-05 3671 set_bit(LIBIE_FILTER_PCTYPE_NONF_IPV6_UDP, flow_pctypes); 0e8b9fdd40fe65 Ivan Vecera 2023-11-13 3672 if (test_bit(I40E_HW_CAP_MULTI_TCP_UDP_RSS_PCTYPE, 0e8b9fdd40fe65 Ivan Vecera 2023-11-13 3673 pf->hw.caps)) { 141d0c9037ca57 Jacob Keller 2025-05-05 3674 set_bit(LIBIE_FILTER_PCTYPE_NONF_UNICAST_IPV6_UDP, 3b32c9932853e1 Slawomir Laba 2022-10-24 3675 flow_pctypes); 141d0c9037ca57 Jacob Keller 2025-05-05 3676 set_bit(LIBIE_FILTER_PCTYPE_NONF_MULTICAST_IPV6_UDP, 3b32c9932853e1 Slawomir Laba 2022-10-24 3677 flow_pctypes); 3b32c9932853e1 Slawomir Laba 2022-10-24 3678 } 141d0c9037ca57 Jacob Keller 2025-05-05 3679 hena |= BIT_ULL(LIBIE_FILTER_PCTYPE_FRAG_IPV6); c7d05ca89f8e40 Jesse Brandeburg 2013-09-11 3680 break; c7d05ca89f8e40 Jesse Brandeburg 2013-09-11 3681 case AH_ESP_V4_FLOW: c7d05ca89f8e40 Jesse Brandeburg 2013-09-11 3682 case AH_V4_FLOW: c7d05ca89f8e40 Jesse Brandeburg 2013-09-11 3683 case ESP_V4_FLOW: c7d05ca89f8e40 Jesse Brandeburg 2013-09-11 3684 case SCTP_V4_FLOW: c7d05ca89f8e40 Jesse Brandeburg 2013-09-11 3685 if ((nfc->data & RXH_L4_B_0_1) || c7d05ca89f8e40 Jesse Brandeburg 2013-09-11 3686 (nfc->data & RXH_L4_B_2_3)) c7d05ca89f8e40 Jesse Brandeburg 2013-09-11 3687 return -EINVAL; 141d0c9037ca57 Jacob Keller 2025-05-05 3688 hena |= BIT_ULL(LIBIE_FILTER_PCTYPE_NONF_IPV4_OTHER); c7d05ca89f8e40 Jesse Brandeburg 2013-09-11 3689 break; c7d05ca89f8e40 Jesse Brandeburg 2013-09-11 3690 case AH_ESP_V6_FLOW: c7d05ca89f8e40 Jesse Brandeburg 2013-09-11 3691 case AH_V6_FLOW: c7d05ca89f8e40 Jesse Brandeburg 2013-09-11 3692 case ESP_V6_FLOW: c7d05ca89f8e40 Jesse Brandeburg 2013-09-11 3693 case SCTP_V6_FLOW: c7d05ca89f8e40 Jesse Brandeburg 2013-09-11 3694 if ((nfc->data & RXH_L4_B_0_1) || c7d05ca89f8e40 Jesse Brandeburg 2013-09-11 3695 (nfc->data & RXH_L4_B_2_3)) c7d05ca89f8e40 Jesse Brandeburg 2013-09-11 3696 return -EINVAL; 141d0c9037ca57 Jacob Keller 2025-05-05 3697 hena |= BIT_ULL(LIBIE_FILTER_PCTYPE_NONF_IPV6_OTHER); c7d05ca89f8e40 Jesse Brandeburg 2013-09-11 3698 break; c7d05ca89f8e40 Jesse Brandeburg 2013-09-11 3699 case IPV4_FLOW: 141d0c9037ca57 Jacob Keller 2025-05-05 3700 hena |= BIT_ULL(LIBIE_FILTER_PCTYPE_NONF_IPV4_OTHER) | 141d0c9037ca57 Jacob Keller 2025-05-05 3701 BIT_ULL(LIBIE_FILTER_PCTYPE_FRAG_IPV4); c7d05ca89f8e40 Jesse Brandeburg 2013-09-11 3702 break; c7d05ca89f8e40 Jesse Brandeburg 2013-09-11 3703 case IPV6_FLOW: 141d0c9037ca57 Jacob Keller 2025-05-05 3704 hena |= BIT_ULL(LIBIE_FILTER_PCTYPE_NONF_IPV6_OTHER) | 141d0c9037ca57 Jacob Keller 2025-05-05 3705 BIT_ULL(LIBIE_FILTER_PCTYPE_FRAG_IPV6); c7d05ca89f8e40 Jesse Brandeburg 2013-09-11 3706 break; c7d05ca89f8e40 Jesse Brandeburg 2013-09-11 3707 default: c7d05ca89f8e40 Jesse Brandeburg 2013-09-11 3708 return -EINVAL; c7d05ca89f8e40 Jesse Brandeburg 2013-09-11 3709 } c7d05ca89f8e40 Jesse Brandeburg 2013-09-11 3710 3b32c9932853e1 Slawomir Laba 2022-10-24 @3711 for_each_set_bit(flow_id, flow_pctypes, FLOW_PCTYPES_SIZE) { 3b32c9932853e1 Slawomir Laba 2022-10-24 3712 i_setc = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, flow_id)) | 3b32c9932853e1 Slawomir Laba 2022-10-24 3713 ((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, flow_id)) << 32); 54b5af5a438076 Slawomir Laba 2022-10-24 3714 i_set = i40e_get_rss_hash_bits(&pf->hw, nfc, i_setc); 3b32c9932853e1 Slawomir Laba 2022-10-24 3715 3b32c9932853e1 Slawomir Laba 2022-10-24 3716 i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, flow_id), eb0dd6e4a3b3df Carolyn Wyborny 2016-07-27 3717 (u32)i_set); 3b32c9932853e1 Slawomir Laba 2022-10-24 3718 i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, flow_id), eb0dd6e4a3b3df Carolyn Wyborny 2016-07-27 3719 (u32)(i_set >> 32)); 3b32c9932853e1 Slawomir Laba 2022-10-24 3720 hena |= BIT_ULL(flow_id); 3b32c9932853e1 Slawomir Laba 2022-10-24 3721 } eb0dd6e4a3b3df Carolyn Wyborny 2016-07-27 3722 272cdaf2472ab7 Shannon Nelson 2016-02-17 3723 i40e_write_rx_ctl(hw, I40E_PFQF_HENA(0), (u32)hena); 272cdaf2472ab7 Shannon Nelson 2016-02-17 3724 i40e_write_rx_ctl(hw, I40E_PFQF_HENA(1), (u32)(hena >> 32)); c7d05ca89f8e40 Jesse Brandeburg 2013-09-11 3725 i40e_flush(hw); c7d05ca89f8e40 Jesse Brandeburg 2013-09-11 3726 c7d05ca89f8e40 Jesse Brandeburg 2013-09-11 3727 return 0; c7d05ca89f8e40 Jesse Brandeburg 2013-09-11 3728 } c7d05ca89f8e40 Jesse Brandeburg 2013-09-11 3729 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
