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Date: Fri, 20 Jan 2023 03:47:22 +0800
From: kernel test robot <lkp@...el.com>
To: alejandro.lucero-palau@....com, netdev@...r.kernel.org,
linux-net-drivers@....com
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
davem@...emloft.net, kuba@...nel.org, pabeni@...hat.com,
edumazet@...gle.com, habetsm@...il.com, ecree.xilinx@...il.com,
Alejandro Lucero <alejandro.lucero-palau@....com>
Subject: Re: [PATCH net-next 5/7] sfc: obtain device mac address based on
firmware handle for ef100
Hi,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on net-next/master]
url: https://github.com/intel-lab-lkp/linux/commits/alejandro-lucero-palau-amd-com/sfc-add-devlink-support-for-ef100/20230119-193440
patch link: https://lore.kernel.org/r/20230119113140.20208-6-alejandro.lucero-palau%40amd.com
patch subject: [PATCH net-next 5/7] sfc: obtain device mac address based on firmware handle for ef100
config: i386-randconfig-a015 (https://download.01.org/0day-ci/archive/20230120/202301200333.BjjkOStI-lkp@intel.com/config)
compiler: clang version 14.0.6 (https://github.com/llvm/llvm-project f28c006a5895fc0e329fe15fead81e37457cb1d1)
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
# https://github.com/intel-lab-lkp/linux/commit/94535fc2c87743925490d5ce0573b8e9b4b2690c
git remote add linux-review https://github.com/intel-lab-lkp/linux
git fetch --no-tags linux-review alejandro-lucero-palau-amd-com/sfc-add-devlink-support-for-ef100/20230119-193440
git checkout 94535fc2c87743925490d5ce0573b8e9b4b2690c
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 olddefconfig
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 SHELL=/bin/bash drivers/net/ethernet/sfc/
If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@...el.com>
All warnings (new ones prefixed by >>):
>> drivers/net/ethernet/sfc/ef100_nic.c:1127:21: warning: unused variable 'net_dev' [-Wunused-variable]
struct net_device *net_dev = efx->net_dev;
^
>> drivers/net/ethernet/sfc/ef100_nic.c:1172:9: warning: variable 'rc' is uninitialized when used here [-Wuninitialized]
return rc;
^~
drivers/net/ethernet/sfc/ef100_nic.c:1128:8: note: initialize the variable 'rc' to silence this warning
int rc;
^
= 0
2 warnings generated.
vim +/net_dev +1127 drivers/net/ethernet/sfc/ef100_nic.c
51b35a454efdcd Edward Cree 2020-07-27 1123
98ff4c7c8ac7f5 Jonathan Cooper 2022-06-28 1124 int ef100_probe_netdev_pf(struct efx_nic *efx)
51b35a454efdcd Edward Cree 2020-07-27 1125 {
98ff4c7c8ac7f5 Jonathan Cooper 2022-06-28 1126 struct ef100_nic_data *nic_data = efx->nic_data;
29ec1b27e73990 Edward Cree 2020-07-27 @1127 struct net_device *net_dev = efx->net_dev;
98ff4c7c8ac7f5 Jonathan Cooper 2022-06-28 1128 int rc;
29ec1b27e73990 Edward Cree 2020-07-27 1129
6f6838aabff5ea Edward Cree 2022-07-28 1130 if (!nic_data->grp_mae)
6f6838aabff5ea Edward Cree 2022-07-28 1131 return 0;
6f6838aabff5ea Edward Cree 2022-07-28 1132
6f6838aabff5ea Edward Cree 2022-07-28 1133 #ifdef CONFIG_SFC_SRIOV
67ab160ed08f5b Edward Cree 2022-07-28 1134 rc = efx_init_struct_tc(efx);
67ab160ed08f5b Edward Cree 2022-07-28 1135 if (rc)
67ab160ed08f5b Edward Cree 2022-07-28 1136 return rc;
67ab160ed08f5b Edward Cree 2022-07-28 1137
6f6838aabff5ea Edward Cree 2022-07-28 1138 rc = efx_ef100_get_base_mport(efx);
6f6838aabff5ea Edward Cree 2022-07-28 1139 if (rc) {
6f6838aabff5ea Edward Cree 2022-07-28 1140 netif_warn(efx, probe, net_dev,
6f6838aabff5ea Edward Cree 2022-07-28 1141 "Failed to probe base mport rc %d; representors will not function\n",
6f6838aabff5ea Edward Cree 2022-07-28 1142 rc);
f393f2642abb0e Alejandro Lucero 2023-01-19 1143 } else {
f393f2642abb0e Alejandro Lucero 2023-01-19 1144 if (efx_probe_devlink(efx))
f393f2642abb0e Alejandro Lucero 2023-01-19 1145 netif_warn(efx, probe, net_dev,
f393f2642abb0e Alejandro Lucero 2023-01-19 1146 "Failed to register devlink\n");
1542af777ce523 Alejandro Lucero 2023-01-19 1147 rc = efx_init_mae(efx);
1542af777ce523 Alejandro Lucero 2023-01-19 1148 if (rc)
1542af777ce523 Alejandro Lucero 2023-01-19 1149 pci_warn(efx->pci_dev,
1542af777ce523 Alejandro Lucero 2023-01-19 1150 "Failed to init MAE rc %d; representors will not function\n",
1542af777ce523 Alejandro Lucero 2023-01-19 1151 rc);
1542af777ce523 Alejandro Lucero 2023-01-19 1152 else
1542af777ce523 Alejandro Lucero 2023-01-19 1153 efx_ef100_init_reps(efx);
6f6838aabff5ea Edward Cree 2022-07-28 1154 }
67ab160ed08f5b Edward Cree 2022-07-28 1155
67ab160ed08f5b Edward Cree 2022-07-28 1156 rc = efx_init_tc(efx);
67ab160ed08f5b Edward Cree 2022-07-28 1157 if (rc) {
67ab160ed08f5b Edward Cree 2022-07-28 1158 /* Either we don't have an MAE at all (i.e. legacy v-switching),
67ab160ed08f5b Edward Cree 2022-07-28 1159 * or we do but we failed to probe it. In the latter case, we
67ab160ed08f5b Edward Cree 2022-07-28 1160 * may not have set up default rules, in which case we won't be
67ab160ed08f5b Edward Cree 2022-07-28 1161 * able to pass any traffic. However, we don't fail the probe,
67ab160ed08f5b Edward Cree 2022-07-28 1162 * because the user might need to use the netdevice to apply
67ab160ed08f5b Edward Cree 2022-07-28 1163 * configuration changes to fix whatever's wrong with the MAE.
67ab160ed08f5b Edward Cree 2022-07-28 1164 */
67ab160ed08f5b Edward Cree 2022-07-28 1165 netif_warn(efx, probe, net_dev, "Failed to probe MAE rc %d\n",
67ab160ed08f5b Edward Cree 2022-07-28 1166 rc);
9dc0cad203ab57 Edward Cree 2022-09-26 1167 } else {
9dc0cad203ab57 Edward Cree 2022-09-26 1168 net_dev->features |= NETIF_F_HW_TC;
9dc0cad203ab57 Edward Cree 2022-09-26 1169 efx->fixed_features |= NETIF_F_HW_TC;
67ab160ed08f5b Edward Cree 2022-07-28 1170 }
6f6838aabff5ea Edward Cree 2022-07-28 1171 #endif
29ec1b27e73990 Edward Cree 2020-07-27 @1172 return rc;
51b35a454efdcd Edward Cree 2020-07-27 1173 }
51b35a454efdcd Edward Cree 2020-07-27 1174
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests
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