tree: https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git config-endian head: d8ede9b5e734748613d3e3108a4026244aa8e41f commit: 392755e77e260e8a173b228e8ecc17917f97d5eb [38/39] fixup! virtio_net: correct tags for config space fields config: arm64-allyesconfig (attached as .config) compiler: aarch64-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 392755e77e260e8a173b228e8ecc17917f97d5eb # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm64 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 >>): drivers/platform/mellanox/mlxbf-tmfifo.c: In function 'mlxbf_tmfifo_probe': 1237 | #defined MLXBF_TMFIFO_LITTLE_ENDIAN (virtio_legacy_is_little_endian() || | ^~~~~~~ | define drivers/platform/mellanox/mlxbf-tmfifo.c:1238:4: warning: statement with no effect [-Wunused-value] 1238 | (MLXBF_TMFIFO_NET_FEATURES & (1ULL << VIRTIO_F_VERSION_1))) | ^ 1238 | (MLXBF_TMFIFO_NET_FEATURES & (1ULL << VIRTIO_F_VERSION_1))) | ^ | ; 1240 | net_config.mtu = __cpu_to_virtio16(MLXBF_TMFIFO_LITTLE_ENDIAN, | ^~~~~~~~~~~~~~~~~~~~~~~~~~ | MLXBF_TMFIFO_NET_L2_OVERHEAD drivers/platform/mellanox/mlxbf-tmfifo.c:1240:37: note: each undeclared identifier is reported only once for each function it appears in vim +1237 drivers/platform/mellanox/mlxbf-tmfifo.c 1181 1182 /* Probe the TMFIFO. */ 1183 static int mlxbf_tmfifo_probe(struct platform_device *pdev) 1184 { 1185 struct virtio_net_config net_config; 1186 struct device *dev = &pdev->dev; 1187 struct mlxbf_tmfifo *fifo; 1188 int i, rc; 1189 1190 fifo = devm_kzalloc(dev, sizeof(*fifo), GFP_KERNEL); 1191 if (!fifo) 1192 return -ENOMEM; 1193 1194 spin_lock_init(&fifo->spin_lock[0]); 1195 spin_lock_init(&fifo->spin_lock[1]); 1196 INIT_WORK(&fifo->work, mlxbf_tmfifo_work_handler); 1197 mutex_init(&fifo->lock); 1198 1199 /* Get the resource of the Rx FIFO. */ 1200 fifo->rx_base = devm_platform_ioremap_resource(pdev, 0); 1201 if (IS_ERR(fifo->rx_base)) 1202 return PTR_ERR(fifo->rx_base); 1203 1204 /* Get the resource of the Tx FIFO. */ 1205 fifo->tx_base = devm_platform_ioremap_resource(pdev, 1); 1206 if (IS_ERR(fifo->tx_base)) 1207 return PTR_ERR(fifo->tx_base); 1208 1209 platform_set_drvdata(pdev, fifo); 1210 1211 timer_setup(&fifo->timer, mlxbf_tmfifo_timer, 0); 1212 1213 for (i = 0; i < MLXBF_TM_MAX_IRQ; i++) { 1214 fifo->irq_info[i].index = i; 1215 fifo->irq_info[i].fifo = fifo; 1216 fifo->irq_info[i].irq = platform_get_irq(pdev, i); 1217 rc = devm_request_irq(dev, fifo->irq_info[i].irq, 1218 mlxbf_tmfifo_irq_handler, 0, 1219 "tmfifo", &fifo->irq_info[i]); 1220 if (rc) { 1221 dev_err(dev, "devm_request_irq failed\n"); 1222 fifo->irq_info[i].irq = 0; 1223 return rc; 1224 } 1225 } 1226 1227 mlxbf_tmfifo_set_threshold(fifo); 1228 1229 /* Create the console vdev. */ 1230 rc = mlxbf_tmfifo_create_vdev(dev, fifo, VIRTIO_ID_CONSOLE, 0, NULL, 0); 1231 if (rc) 1232 goto fail; 1233 1234 /* Create the network vdev. */ 1235 memset(&net_config, 0, sizeof(net_config)); 1236 1239 1241 ETH_DATA_LEN); 1242 net_config.status = __cpu_to_virtio16(MLXBF_TMFIFO_LITTLE_ENDIAN, 1243 VIRTIO_NET_S_LINK_UP); 1244 mlxbf_tmfifo_get_cfg_mac(net_config.mac); 1245 rc = mlxbf_tmfifo_create_vdev(dev, fifo, VIRTIO_ID_NET, 1246 MLXBF_TMFIFO_NET_FEATURES, &net_config, 1247 sizeof(net_config)); 1248 if (rc) 1249 goto fail; 1250 1251 mod_timer(&fifo->timer, jiffies + MLXBF_TMFIFO_TIMER_INTERVAL); 1252 1253 fifo->is_ready = true; 1254 return 0; 1255 1256 fail: 1257 mlxbf_tmfifo_cleanup(fifo); 1258 return rc; 1259 } 1260 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org