tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 683f29b781aeaab6bf302eeb2ef08a5e5f9d8a27 commit: 2a87bd73e50d1c71392c036b0b31c9b2418981d0 [3723/6929] ice: Add DSCP support config: riscv-buildonly-randconfig-r005-20211010 (attached as .config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 903b30fea21f99d8f48fde4defcc838970e30ee1) 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 # install riscv cross compiling tool for clang build # apt-get install binutils-riscv64-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=2a87bd73e50d1c71392c036b0b31c9b2418981d0 git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout 2a87bd73e50d1c71392c036b0b31c9b2418981d0 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=riscv If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): >> drivers/net/ethernet/intel/ice/ice_dcb_nl.c:66:6: error: variable 'bwcfg' set but not used [-Werror,-Wunused-but-set-variable] int bwcfg = 0, bwrec = 0; ^ 1 error generated. vim +/bwcfg +66 drivers/net/ethernet/intel/ice/ice_dcb_nl.c b94b013eb62695 Dave Ertman 2019-11-06 56 b94b013eb62695 Dave Ertman 2019-11-06 57 /** b94b013eb62695 Dave Ertman 2019-11-06 58 * ice_dcbnl_setets - set IEEE ETS configuration b94b013eb62695 Dave Ertman 2019-11-06 59 * @netdev: pointer to relevant netdev b94b013eb62695 Dave Ertman 2019-11-06 60 * @ets: struct to hold ETS configuration b94b013eb62695 Dave Ertman 2019-11-06 61 */ b94b013eb62695 Dave Ertman 2019-11-06 62 static int ice_dcbnl_setets(struct net_device *netdev, struct ieee_ets *ets) b94b013eb62695 Dave Ertman 2019-11-06 63 { b94b013eb62695 Dave Ertman 2019-11-06 64 struct ice_pf *pf = ice_netdev_to_pf(netdev); b94b013eb62695 Dave Ertman 2019-11-06 65 struct ice_dcbx_cfg *new_cfg; b94b013eb62695 Dave Ertman 2019-11-06 @66 int bwcfg = 0, bwrec = 0; 2a87bd73e50d1c Dave Ertman 2021-08-06 67 int err, i; b94b013eb62695 Dave Ertman 2019-11-06 68 b94b013eb62695 Dave Ertman 2019-11-06 69 if ((pf->dcbx_cap & DCB_CAP_DCBX_LLD_MANAGED) || b94b013eb62695 Dave Ertman 2019-11-06 70 !(pf->dcbx_cap & DCB_CAP_DCBX_VER_IEEE)) b94b013eb62695 Dave Ertman 2019-11-06 71 return -EINVAL; b94b013eb62695 Dave Ertman 2019-11-06 72 fc2d1165d4a424 Chinh T Cao 2020-11-20 73 new_cfg = &pf->hw.port_info->qos_cfg.desired_dcbx_cfg; b94b013eb62695 Dave Ertman 2019-11-06 74 b94b013eb62695 Dave Ertman 2019-11-06 75 mutex_lock(&pf->tc_mutex); b94b013eb62695 Dave Ertman 2019-11-06 76 b94b013eb62695 Dave Ertman 2019-11-06 77 new_cfg->etscfg.willing = ets->willing; b94b013eb62695 Dave Ertman 2019-11-06 78 new_cfg->etscfg.cbs = ets->cbs; b94b013eb62695 Dave Ertman 2019-11-06 79 ice_for_each_traffic_class(i) { b94b013eb62695 Dave Ertman 2019-11-06 80 new_cfg->etscfg.tcbwtable[i] = ets->tc_tx_bw[i]; b94b013eb62695 Dave Ertman 2019-11-06 81 bwcfg += ets->tc_tx_bw[i]; b94b013eb62695 Dave Ertman 2019-11-06 82 new_cfg->etscfg.tsatable[i] = ets->tc_tsa[i]; 2a87bd73e50d1c Dave Ertman 2021-08-06 83 if (new_cfg->pfc_mode == ICE_QOS_MODE_VLAN) { 2a87bd73e50d1c Dave Ertman 2021-08-06 84 /* in DSCP mode up->tc mapping cannot change */ b94b013eb62695 Dave Ertman 2019-11-06 85 new_cfg->etscfg.prio_table[i] = ets->prio_tc[i]; 2a87bd73e50d1c Dave Ertman 2021-08-06 86 new_cfg->etsrec.prio_table[i] = ets->reco_prio_tc[i]; 2a87bd73e50d1c Dave Ertman 2021-08-06 87 } b94b013eb62695 Dave Ertman 2019-11-06 88 new_cfg->etsrec.tcbwtable[i] = ets->tc_reco_bw[i]; b94b013eb62695 Dave Ertman 2019-11-06 89 bwrec += ets->tc_reco_bw[i]; b94b013eb62695 Dave Ertman 2019-11-06 90 new_cfg->etsrec.tsatable[i] = ets->tc_reco_tsa[i]; b94b013eb62695 Dave Ertman 2019-11-06 91 } b94b013eb62695 Dave Ertman 2019-11-06 92 a29a912d448dbc Avinash Dayanand 2020-02-13 93 if (ice_dcb_bwchk(pf, new_cfg)) { a29a912d448dbc Avinash Dayanand 2020-02-13 94 err = -EINVAL; a29a912d448dbc Avinash Dayanand 2020-02-13 95 goto ets_out; a29a912d448dbc Avinash Dayanand 2020-02-13 96 } a29a912d448dbc Avinash Dayanand 2020-02-13 97 2a87bd73e50d1c Dave Ertman 2021-08-06 98 new_cfg->etscfg.maxtcs = pf->hw.func_caps.common_cap.maxtc; b94b013eb62695 Dave Ertman 2019-11-06 99 b94b013eb62695 Dave Ertman 2019-11-06 100 if (!bwrec) b94b013eb62695 Dave Ertman 2019-11-06 101 new_cfg->etsrec.tcbwtable[0] = 100; b94b013eb62695 Dave Ertman 2019-11-06 102 b94b013eb62695 Dave Ertman 2019-11-06 103 err = ice_pf_dcb_cfg(pf, new_cfg, true); b94b013eb62695 Dave Ertman 2019-11-06 104 /* return of zero indicates new cfg applied */ b94b013eb62695 Dave Ertman 2019-11-06 105 if (err == ICE_DCB_HW_CHG_RST) b94b013eb62695 Dave Ertman 2019-11-06 106 ice_dcbnl_devreset(netdev); b94b013eb62695 Dave Ertman 2019-11-06 107 if (err == ICE_DCB_NO_HW_CHG) b94b013eb62695 Dave Ertman 2019-11-06 108 err = ICE_DCB_HW_CHG_RST; b94b013eb62695 Dave Ertman 2019-11-06 109 a29a912d448dbc Avinash Dayanand 2020-02-13 110 ets_out: b94b013eb62695 Dave Ertman 2019-11-06 111 mutex_unlock(&pf->tc_mutex); b94b013eb62695 Dave Ertman 2019-11-06 112 return err; b94b013eb62695 Dave Ertman 2019-11-06 113 } b94b013eb62695 Dave Ertman 2019-11-06 114 :::::: The code at line 66 was first introduced by commit :::::: b94b013eb6269526eeb3768101666ba6f526313e ice: Implement DCBNL support :::::: TO: Dave Ertman <david.m.ertman@xxxxxxxxx> :::::: CC: Jeff Kirsher <jeffrey.t.kirsher@xxxxxxxxx> --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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