tree: https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git config-endian head: df43c8f58f42ec36e91740f91ea7360f63213004 commit: e1e22056bc3641f340ed27012cfd1b8b05f83a0a [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 e1e22056bc3641f340ed27012cfd1b8b05f83a0a # 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': drivers/platform/mellanox/mlxbf-tmfifo.c:1237:70: warning: value computed is not used [-Wunused-value] 1237 | #define MLXBF_TMFIFO_LITTLE_ENDIAN (virtio_legacy_is_little_endian() || \ | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~ 1238 | (MLXBF_TMFIFO_NET_FEATURES & (1ULL << VIRTIO_F_VERSION_1)) | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/platform/mellanox/mlxbf-tmfifo.c:1240:37: note: in expansion of macro 'MLXBF_TMFIFO_LITTLE_ENDIAN' 1240 | net_config.mtu = __cpu_to_virtio16(MLXBF_TMFIFO_LITTLE_ENDIAN, | ^~~~~~~~~~~~~~~~~~~~~~~~~~ 1241 | ETH_DATA_LEN); | ^ | ) 1240 | net_config.mtu = __cpu_to_virtio16(MLXBF_TMFIFO_LITTLE_ENDIAN, | ^~~~~~~~~~~~~~~~~ In file included from include/linux/virtio_config.h:8, from drivers/platform/mellanox/mlxbf-tmfifo.c:18: include/linux/virtio_byteorder.h:24:26: note: declared here 24 | static inline __virtio16 __cpu_to_virtio16(bool little_endian, u16 val) | ^~~~~~~~~~~~~~~~~ 1290 | MODULE_AUTHOR("Mellanox Technologies"); | ^~~~~~~~~~~~~ 1232 | goto fail; | ^~~~ At top level: drivers/platform/mellanox/mlxbf-tmfifo.c:1183:12: warning: 'mlxbf_tmfifo_probe' defined but not used [-Wunused-function] 1183 | static int mlxbf_tmfifo_probe(struct platform_device *pdev) | ^~~~~~~~~~~~~~~~~~ drivers/platform/mellanox/mlxbf-tmfifo.c:1170:13: warning: 'mlxbf_tmfifo_cleanup' defined but not used [-Wunused-function] 1170 | static void mlxbf_tmfifo_cleanup(struct mlxbf_tmfifo *fifo) | ^~~~~~~~~~~~~~~~~~~~ drivers/platform/mellanox/mlxbf-tmfifo.c:1128:13: warning: 'mlxbf_tmfifo_get_cfg_mac' defined but not used [-Wunused-function] 1128 | static void mlxbf_tmfifo_get_cfg_mac(u8 *mac) | ^~~~~~~~~~~~~~~~~~~~~~~~ vim +1241 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) 1233 1234 /* Create the network vdev. */ 1235 memset(&net_config, 0, sizeof(net_config)); 1236 1237 #define MLXBF_TMFIFO_LITTLE_ENDIAN (virtio_legacy_is_little_endian() || \ 1238 (MLXBF_TMFIFO_NET_FEATURES & (1ULL << VIRTIO_F_VERSION_1)) 1239 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 1261 /* Device remove function. */ 1262 static int mlxbf_tmfifo_remove(struct platform_device *pdev) 1263 { 1264 struct mlxbf_tmfifo *fifo = platform_get_drvdata(pdev); 1265 1266 mlxbf_tmfifo_cleanup(fifo); 1267 1268 return 0; 1269 } 1270 1271 static const struct acpi_device_id mlxbf_tmfifo_acpi_match[] = { 1272 { "MLNXBF01", 0 }, 1273 {} 1274 }; 1275 MODULE_DEVICE_TABLE(acpi, mlxbf_tmfifo_acpi_match); 1276 1277 static struct platform_driver mlxbf_tmfifo_driver = { 1278 .probe = mlxbf_tmfifo_probe, 1279 .remove = mlxbf_tmfifo_remove, 1280 .driver = { 1281 .name = "bf-tmfifo", 1282 .acpi_match_table = mlxbf_tmfifo_acpi_match, 1283 }, 1284 }; 1285 1286 module_platform_driver(mlxbf_tmfifo_driver); 1287 1288 MODULE_DESCRIPTION("Mellanox BlueField SoC TmFifo Driver"); 1289 MODULE_LICENSE("GPL v2"); --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org