BCC: lkp(a)intel.com CC: kbuild-all(a)lists.01.org CC: Linux Memory Management List <linux-mm(a)kvack.org&gt; TO: Sean Anderson <sean.anderson(a)seco.com&gt; tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: ef08d387bbbc20df740ced8caee0ffac835869ac commit: 302376feec1d4e351faf31df17fdb22db685961a [4378/8235] net: fman: Move initialization to mac-specific files :::::: branch date: 6 hours ago :::::: commit date: 2 weeks ago config: csky-randconfig-m041-20220918 (https://download.01.org/0day-ci/archive/20220920/202209202227.TZKzS00j-lk...) compiler: csky-linux-gcc (GCC) 12.1.0 If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <lkp(a)intel.com&gt; Reported-by: Dan Carpenter <dan.carpenter(a)oracle.com&gt; smatch warnings: drivers/net/ethernet/freescale/fman/fman_memac.c:1286 memac_initialization() error: uninitialized symbol 'fixed_link'. vim +/fixed_link +1286 drivers/net/ethernet/freescale/fman/fman_memac.c 302376feec1d4e Sean Anderson 2022-09-02 1199 302376feec1d4e Sean Anderson 2022-09-02 1200 int memac_initialization(struct mac_device *mac_dev, 302376feec1d4e Sean Anderson 2022-09-02 1201 struct device_node *mac_node) 302376feec1d4e Sean Anderson 2022-09-02 1202 { 302376feec1d4e Sean Anderson 2022-09-02 1203 int err; 302376feec1d4e Sean Anderson 2022-09-02 1204 struct fman_mac_params params; 302376feec1d4e Sean Anderson 2022-09-02 1205 struct fixed_phy_status *fixed_link; 302376feec1d4e Sean Anderson 2022-09-02 1206 302376feec1d4e Sean Anderson 2022-09-02 1207 mac_dev->set_promisc = memac_set_promiscuous; 302376feec1d4e Sean Anderson 2022-09-02 1208 mac_dev->change_addr = memac_modify_mac_address; 302376feec1d4e Sean Anderson 2022-09-02 1209 mac_dev->add_hash_mac_addr = memac_add_hash_mac_address; 302376feec1d4e Sean Anderson 2022-09-02 1210 mac_dev->remove_hash_mac_addr = memac_del_hash_mac_address; 302376feec1d4e Sean Anderson 2022-09-02 1211 mac_dev->set_tx_pause = memac_set_tx_pause_frames; 302376feec1d4e Sean Anderson 2022-09-02 1212 mac_dev->set_rx_pause = memac_accept_rx_pause_frames; 302376feec1d4e Sean Anderson 2022-09-02 1213 mac_dev->set_exception = memac_set_exception; 302376feec1d4e Sean Anderson 2022-09-02 1214 mac_dev->set_allmulti = memac_set_allmulti; 302376feec1d4e Sean Anderson 2022-09-02 1215 mac_dev->set_tstamp = memac_set_tstamp; 302376feec1d4e Sean Anderson 2022-09-02 1216 mac_dev->set_multi = fman_set_multi; 302376feec1d4e Sean Anderson 2022-09-02 1217 mac_dev->adjust_link = adjust_link_memac; 302376feec1d4e Sean Anderson 2022-09-02 1218 mac_dev->enable = memac_enable; 302376feec1d4e Sean Anderson 2022-09-02 1219 mac_dev->disable = memac_disable; 302376feec1d4e Sean Anderson 2022-09-02 1220 302376feec1d4e Sean Anderson 2022-09-02 1221 err = set_fman_mac_params(mac_dev, &params); 302376feec1d4e Sean Anderson 2022-09-02 1222 if (err) 302376feec1d4e Sean Anderson 2022-09-02 1223 goto _return; 302376feec1d4e Sean Anderson 2022-09-02 1224 params.internal_phy_node = of_parse_phandle(mac_node, "pcsphy-handle", 0); 302376feec1d4e Sean Anderson 2022-09-02 1225 302376feec1d4e Sean Anderson 2022-09-02 1226 if (params.max_speed == SPEED_10000) 302376feec1d4e Sean Anderson 2022-09-02 1227 params.phy_if = PHY_INTERFACE_MODE_XGMII; 302376feec1d4e Sean Anderson 2022-09-02 1228 302376feec1d4e Sean Anderson 2022-09-02 1229 mac_dev->fman_mac = memac_config(&params); 302376feec1d4e Sean Anderson 2022-09-02 1230 if (!mac_dev->fman_mac) { 302376feec1d4e Sean Anderson 2022-09-02 1231 err = -EINVAL; 302376feec1d4e Sean Anderson 2022-09-02 1232 goto _return; 302376feec1d4e Sean Anderson 2022-09-02 1233 } 302376feec1d4e Sean Anderson 2022-09-02 1234 302376feec1d4e Sean Anderson 2022-09-02 1235 err = memac_cfg_max_frame_len(mac_dev->fman_mac, fman_get_max_frm()); 302376feec1d4e Sean Anderson 2022-09-02 1236 if (err < 0) 302376feec1d4e Sean Anderson 2022-09-02 1237 goto _return_fm_mac_free; 302376feec1d4e Sean Anderson 2022-09-02 1238 302376feec1d4e Sean Anderson 2022-09-02 1239 err = memac_cfg_reset_on_init(mac_dev->fman_mac, true); 302376feec1d4e Sean Anderson 2022-09-02 1240 if (err < 0) 302376feec1d4e Sean Anderson 2022-09-02 1241 goto _return_fm_mac_free; 302376feec1d4e Sean Anderson 2022-09-02 1242 302376feec1d4e Sean Anderson 2022-09-02 1243 if (!mac_dev->phy_node && of_phy_is_fixed_link(mac_node)) { 302376feec1d4e Sean Anderson 2022-09-02 1244 struct phy_device *phy; 302376feec1d4e Sean Anderson 2022-09-02 1245 302376feec1d4e Sean Anderson 2022-09-02 1246 err = of_phy_register_fixed_link(mac_node); 302376feec1d4e Sean Anderson 2022-09-02 1247 if (err) 302376feec1d4e Sean Anderson 2022-09-02 1248 goto _return_fm_mac_free; 302376feec1d4e Sean Anderson 2022-09-02 1249 302376feec1d4e Sean Anderson 2022-09-02 1250 fixed_link = kzalloc(sizeof(*fixed_link), GFP_KERNEL); 302376feec1d4e Sean Anderson 2022-09-02 1251 if (!fixed_link) { 302376feec1d4e Sean Anderson 2022-09-02 1252 err = -ENOMEM; 302376feec1d4e Sean Anderson 2022-09-02 1253 goto _return_fm_mac_free; 302376feec1d4e Sean Anderson 2022-09-02 1254 } 302376feec1d4e Sean Anderson 2022-09-02 1255 302376feec1d4e Sean Anderson 2022-09-02 1256 mac_dev->phy_node = of_node_get(mac_node); 302376feec1d4e Sean Anderson 2022-09-02 1257 phy = of_phy_find_device(mac_dev->phy_node); 302376feec1d4e Sean Anderson 2022-09-02 1258 if (!phy) { 302376feec1d4e Sean Anderson 2022-09-02 1259 err = -EINVAL; 302376feec1d4e Sean Anderson 2022-09-02 1260 of_node_put(mac_dev->phy_node); 302376feec1d4e Sean Anderson 2022-09-02 1261 goto _return_fixed_link_free; 302376feec1d4e Sean Anderson 2022-09-02 1262 } 302376feec1d4e Sean Anderson 2022-09-02 1263 302376feec1d4e Sean Anderson 2022-09-02 1264 fixed_link->link = phy->link; 302376feec1d4e Sean Anderson 2022-09-02 1265 fixed_link->speed = phy->speed; 302376feec1d4e Sean Anderson 2022-09-02 1266 fixed_link->duplex = phy->duplex; 302376feec1d4e Sean Anderson 2022-09-02 1267 fixed_link->pause = phy->pause; 302376feec1d4e Sean Anderson 2022-09-02 1268 fixed_link->asym_pause = phy->asym_pause; 302376feec1d4e Sean Anderson 2022-09-02 1269 302376feec1d4e Sean Anderson 2022-09-02 1270 put_device(&phy->mdio.dev); 302376feec1d4e Sean Anderson 2022-09-02 1271 302376feec1d4e Sean Anderson 2022-09-02 1272 err = memac_cfg_fixed_link(mac_dev->fman_mac, fixed_link); 302376feec1d4e Sean Anderson 2022-09-02 1273 if (err < 0) 302376feec1d4e Sean Anderson 2022-09-02 1274 goto _return_fixed_link_free; 302376feec1d4e Sean Anderson 2022-09-02 1275 } 302376feec1d4e Sean Anderson 2022-09-02 1276 302376feec1d4e Sean Anderson 2022-09-02 1277 err = memac_init(mac_dev->fman_mac); 302376feec1d4e Sean Anderson 2022-09-02 1278 if (err < 0) 302376feec1d4e Sean Anderson 2022-09-02 1279 goto _return_fixed_link_free; 302376feec1d4e Sean Anderson 2022-09-02 1280 302376feec1d4e Sean Anderson 2022-09-02 1281 dev_info(mac_dev->dev, "FMan MEMAC\n"); 302376feec1d4e Sean Anderson 2022-09-02 1282 302376feec1d4e Sean Anderson 2022-09-02 1283 goto _return; 302376feec1d4e Sean Anderson 2022-09-02 1284 302376feec1d4e Sean Anderson 2022-09-02 1285 _return_fixed_link_free: 302376feec1d4e Sean Anderson 2022-09-02 @1286 kfree(fixed_link); -- 0-DAY CI Kernel Test Service https://01.org/lkp