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Date: Sun, 26 Jul 2020 00:33:21 +0800
From: kernel test robot <lkp@...el.com>
To: Andre Edich <andre.edich@...rochip.com>, netdev@...r.kernel.org,
UNGLinuxDriver@...rochip.com, steve.glendinning@...well.net
Cc: kbuild-all@...ts.01.org, Parthiban.Veerasooran@...rochip.com,
Andre Edich <andre.edich@...rochip.com>
Subject: Re: [PATCH net-next v2 3/6] smsc95xx: add PAL support to use
external PHY drivers
Hi Andre,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on net-next/master]
url: https://github.com/0day-ci/linux/commits/Andre-Edich/Add-PAL-support-to-smsc95xx/20200723-195824
base: https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git 7fc3b978a8971305d456b32d3f2ac13191f5a0d7
config: x86_64-randconfig-a016-20200724 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-14) 9.3.0
reproduce (this is a W=1 build):
# save the attached .config to linux build tree
make W=1 ARCH=x86_64
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>
All errors (new ones prefixed by >>):
ld: drivers/net/usb/smsc95xx.o: in function `smsc95xx_disconnect_phy':
>> drivers/net/usb/smsc95xx.c:1395: undefined reference to `phy_stop'
>> ld: drivers/net/usb/smsc95xx.c:1396: undefined reference to `phy_disconnect'
ld: drivers/net/usb/smsc95xx.o: in function `smsc95xx_unbind':
>> drivers/net/usb/smsc95xx.c:1359: undefined reference to `mdiobus_unregister'
>> ld: drivers/net/usb/smsc95xx.c:1360: undefined reference to `mdiobus_free'
ld: drivers/net/usb/smsc95xx.o: in function `smsc95xx_start_phy':
>> drivers/net/usb/smsc95xx.c:1380: undefined reference to `phy_connect_direct'
>> ld: drivers/net/usb/smsc95xx.c:1388: undefined reference to `phy_attached_info'
>> ld: drivers/net/usb/smsc95xx.c:1389: undefined reference to `phy_start'
ld: drivers/net/usb/smsc95xx.o: in function `smsc95xx_resume':
>> drivers/net/usb/smsc95xx.c:1951: undefined reference to `phy_init_hw'
ld: drivers/net/usb/smsc95xx.o: in function `smsc95xx_handle_link_change':
>> drivers/net/usb/smsc95xx.c:1367: undefined reference to `phy_print_status'
ld: drivers/net/usb/smsc95xx.o: in function `mdiobus_alloc':
>> include/linux/phy.h:318: undefined reference to `mdiobus_alloc_size'
ld: drivers/net/usb/smsc95xx.o: in function `smsc95xx_bind':
>> drivers/net/usb/smsc95xx.c:1293: undefined reference to `__mdiobus_register'
>> ld: drivers/net/usb/smsc95xx.c:1299: undefined reference to `phy_find_first'
ld: drivers/net/usb/smsc95xx.c:1344: undefined reference to `mdiobus_unregister'
ld: drivers/net/usb/smsc95xx.c:1347: undefined reference to `mdiobus_free'
vim +1395 drivers/net/usb/smsc95xx.c
1222
1223 static int smsc95xx_bind(struct usbnet *dev, struct usb_interface *intf)
1224 {
1225 struct smsc95xx_priv *pdata;
1226 u32 val;
1227 int ret;
1228
1229 printk(KERN_INFO SMSC_CHIPNAME " v" SMSC_DRIVER_VERSION "\n");
1230
1231 ret = usbnet_get_endpoints(dev, intf);
1232 if (ret < 0) {
1233 netdev_warn(dev->net, "usbnet_get_endpoints failed: %d\n", ret);
1234 return ret;
1235 }
1236
1237 pdata = kzalloc(sizeof(*pdata), GFP_KERNEL);
1238 if (!pdata)
1239 return -ENOMEM;
1240
1241 dev->driver_priv = pdata;
1242
1243 spin_lock_init(&pdata->mac_cr_lock);
1244
1245 /* LAN95xx devices do not alter the computed checksum of 0 to 0xffff.
1246 * RFC 2460, ipv6 UDP calculated checksum yields a result of zero must
1247 * be changed to 0xffff. RFC 768, ipv4 UDP computed checksum is zero,
1248 * it is transmitted as all ones. The zero transmitted checksum means
1249 * transmitter generated no checksum. Hence, enable csum offload only
1250 * for ipv4 packets.
1251 */
1252 if (DEFAULT_TX_CSUM_ENABLE)
1253 dev->net->features |= NETIF_F_IP_CSUM;
1254 if (DEFAULT_RX_CSUM_ENABLE)
1255 dev->net->features |= NETIF_F_RXCSUM;
1256
1257 dev->net->hw_features = NETIF_F_IP_CSUM | NETIF_F_RXCSUM;
1258 set_bit(EVENT_NO_IP_ALIGN, &dev->flags);
1259
1260 smsc95xx_init_mac_address(dev);
1261
1262 /* Init all registers */
1263 ret = smsc95xx_reset(dev);
1264 if (ret)
1265 goto free_pdata;
1266
1267 pdata->mdiobus = mdiobus_alloc();
1268 if (!pdata->mdiobus) {
1269 ret = -ENOMEM;
1270 goto free_pdata;
1271 }
1272
1273 ret = smsc95xx_read_reg(dev, HW_CFG, &val);
1274 if (ret < 0)
1275 goto free_mdio;
1276
1277 pdata->internal_phy = !(val & HW_CFG_PSEL_);
1278 if (pdata->internal_phy)
1279 pdata->mdiobus->phy_mask = ~(1u << SMSC95XX_INTERNAL_PHY_ID);
1280
1281 pdata->mdiobus->priv = dev;
1282 pdata->mdiobus->read = smsc95xx_mdiobus_read;
1283 pdata->mdiobus->write = smsc95xx_mdiobus_write;
1284 pdata->mdiobus->name = "smsc95xx-mdiobus";
1285 pdata->mdiobus->parent = &dev->udev->dev;
1286
1287 dev->mii.phy_id_mask = 0x1f;
1288 dev->mii.reg_num_mask = 0x1f;
1289
1290 snprintf(pdata->mdiobus->id, ARRAY_SIZE(pdata->mdiobus->id),
1291 "usb-%03d:%03d", dev->udev->bus->busnum, dev->udev->devnum);
1292
> 1293 ret = mdiobus_register(pdata->mdiobus);
1294 if (ret) {
1295 netdev_err(dev->net, "Could not register MDIO bus\n");
1296 goto free_mdio;
1297 }
1298
> 1299 pdata->phydev = phy_find_first(pdata->mdiobus);
1300 if (!pdata->phydev) {
1301 netdev_err(dev->net, "no PHY found\n");
1302 ret = -ENODEV;
1303 goto unregister_mdio;
1304 }
1305
1306 dev->mii.dev = dev->net;
1307 dev->mii.mdio_read = smsc95xx_mdio_read;
1308 dev->mii.mdio_write = smsc95xx_mdio_write;
1309 dev->mii.phy_id = pdata->phydev->mdio.addr;
1310
1311 /* detect device revision as different features may be available */
1312 ret = smsc95xx_read_reg(dev, ID_REV, &val);
1313 if (ret < 0)
1314 goto unregister_mdio;
1315
1316 val >>= 16;
1317 pdata->chip_id = val;
1318 if (pdata->internal_phy)
1319 pdata->mdix_ctrl = get_mdix_status(dev->net);
1320
1321 if ((val == ID_REV_CHIP_ID_9500A_) || (val == ID_REV_CHIP_ID_9530_) ||
1322 (val == ID_REV_CHIP_ID_89530_) || (val == ID_REV_CHIP_ID_9730_))
1323 pdata->features = (FEATURE_8_WAKEUP_FILTERS |
1324 FEATURE_PHY_NLP_CROSSOVER |
1325 FEATURE_REMOTE_WAKEUP);
1326 else if (val == ID_REV_CHIP_ID_9512_)
1327 pdata->features = FEATURE_8_WAKEUP_FILTERS;
1328
1329 dev->net->netdev_ops = &smsc95xx_netdev_ops;
1330 dev->net->ethtool_ops = &smsc95xx_ethtool_ops;
1331 dev->net->flags |= IFF_MULTICAST;
1332 dev->net->hard_header_len += SMSC95XX_TX_OVERHEAD_CSUM;
1333 dev->net->min_mtu = ETH_MIN_MTU;
1334 dev->net->max_mtu = ETH_DATA_LEN;
1335 dev->hard_mtu = dev->net->mtu + dev->net->hard_header_len;
1336
1337 pdata->dev = dev;
1338 INIT_DELAYED_WORK(&pdata->carrier_check, check_carrier);
1339 schedule_delayed_work(&pdata->carrier_check, CARRIER_CHECK_DELAY);
1340
1341 return 0;
1342
1343 unregister_mdio:
1344 mdiobus_unregister(pdata->mdiobus);
1345
1346 free_mdio:
1347 mdiobus_free(pdata->mdiobus);
1348
1349 free_pdata:
1350 kfree(pdata);
1351 return ret;
1352 }
1353
1354 static void smsc95xx_unbind(struct usbnet *dev, struct usb_interface *intf)
1355 {
1356 struct smsc95xx_priv *pdata = dev->driver_priv;
1357
1358 cancel_delayed_work_sync(&pdata->carrier_check);
> 1359 mdiobus_unregister(pdata->mdiobus);
> 1360 mdiobus_free(pdata->mdiobus);
1361 netif_dbg(dev, ifdown, dev->net, "free pdata\n");
1362 kfree(pdata);
1363 }
1364
1365 static void smsc95xx_handle_link_change(struct net_device *net)
1366 {
> 1367 phy_print_status(net->phydev);
1368 }
1369
1370 static int smsc95xx_start_phy(struct usbnet *dev)
1371 {
1372 struct smsc95xx_priv *pdata = dev->driver_priv;
1373 struct net_device *net = dev->net;
1374 int ret;
1375
1376 ret = smsc95xx_reset(dev);
1377 if (ret < 0)
1378 return ret;
1379
> 1380 ret = phy_connect_direct(net, pdata->phydev,
1381 &smsc95xx_handle_link_change,
1382 PHY_INTERFACE_MODE_MII);
1383 if (ret) {
1384 netdev_err(net, "can't attach PHY to %s\n", pdata->mdiobus->id);
1385 return ret;
1386 }
1387
> 1388 phy_attached_info(net->phydev);
> 1389 phy_start(net->phydev);
1390 return 0;
1391 }
1392
1393 static int smsc95xx_disconnect_phy(struct usbnet *dev)
1394 {
> 1395 phy_stop(dev->net->phydev);
> 1396 phy_disconnect(dev->net->phydev);
1397 return 0;
1398 }
1399
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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