Hi Krishna, kernel test robot noticed the following build warnings: [auto build test WARNING on usb/usb-testing] [also build test WARNING on usb/usb-next usb/usb-linus robh/for-next pza/reset/next linus/master v6.6-rc2 next-20230919] [cannot apply to pza/imx-drm/next] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Krishna-Kurapati/dt-bindings-usb-qcom-dwc3-Add-bindings-for-SC8280-Multiport/20230828-214326 base: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing patch link: https://lore.kernel.org/r/20230828133033.11988-7-quic_kriskura%40quicinc.com patch subject: [PATCH v11 06/13] usb: dwc3: core: Refactor PHY logic to support Multiport Controller config: x86_64-randconfig-011-20230902 (https://download.01.org/0day-ci/archive/20230920/202309200156.CxQ3yaLY-lkp@xxxxxxxxx/config) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20230920/202309200156.CxQ3yaLY-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202309200156.CxQ3yaLY-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): drivers/usb/dwc3/core.c: In function 'dwc3_core_get_phy': >> drivers/usb/dwc3/core.c:1375:53: warning: '%d' directive writing between 1 and 3 bytes into a region of size 2 [-Wformat-overflow=] 1375 | sprintf(phy_name, "usb2-port%d", i); | ^~ drivers/usb/dwc3/core.c:1375:43: note: directive argument in the range [0, 254] 1375 | sprintf(phy_name, "usb2-port%d", i); | ^~~~~~~~~~~~~ drivers/usb/dwc3/core.c:1375:25: note: 'sprintf' output between 11 and 13 bytes into a destination of size 11 1375 | sprintf(phy_name, "usb2-port%d", i); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/usb/dwc3/core.c:1390:53: warning: '%d' directive writing between 1 and 3 bytes into a region of size 2 [-Wformat-overflow=] 1390 | sprintf(phy_name, "usb3-port%d", i); | ^~ drivers/usb/dwc3/core.c:1390:43: note: directive argument in the range [0, 254] 1390 | sprintf(phy_name, "usb3-port%d", i); | ^~~~~~~~~~~~~ drivers/usb/dwc3/core.c:1390:25: note: 'sprintf' output between 11 and 13 bytes into a destination of size 11 1390 | sprintf(phy_name, "usb3-port%d", i); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ vim +1375 drivers/usb/dwc3/core.c 1338 1339 static int dwc3_core_get_phy(struct dwc3 *dwc) 1340 { 1341 struct device *dev = dwc->dev; 1342 struct device_node *node = dev->of_node; 1343 char phy_name[11]; 1344 int ret; 1345 int i; 1346 1347 if (node) { 1348 dwc->usb2_phy = devm_usb_get_phy_by_phandle(dev, "usb-phy", 0); 1349 dwc->usb3_phy = devm_usb_get_phy_by_phandle(dev, "usb-phy", 1); 1350 } else { 1351 dwc->usb2_phy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB2); 1352 dwc->usb3_phy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB3); 1353 } 1354 1355 if (IS_ERR(dwc->usb2_phy)) { 1356 ret = PTR_ERR(dwc->usb2_phy); 1357 if (ret == -ENXIO || ret == -ENODEV) 1358 dwc->usb2_phy = NULL; 1359 else 1360 return dev_err_probe(dev, ret, "no usb2 phy configured\n"); 1361 } 1362 1363 if (IS_ERR(dwc->usb3_phy)) { 1364 ret = PTR_ERR(dwc->usb3_phy); 1365 if (ret == -ENXIO || ret == -ENODEV) 1366 dwc->usb3_phy = NULL; 1367 else 1368 return dev_err_probe(dev, ret, "no usb3 phy configured\n"); 1369 } 1370 1371 for (i = 0; i < dwc->num_usb2_ports; i++) { 1372 if (dwc->num_usb2_ports == 1) 1373 sprintf(phy_name, "usb2-phy"); 1374 else > 1375 sprintf(phy_name, "usb2-port%d", i); 1376 1377 dwc->usb2_generic_phy[i] = devm_phy_get(dev, phy_name); 1378 if (IS_ERR(dwc->usb2_generic_phy[i])) { 1379 ret = PTR_ERR(dwc->usb2_generic_phy[i]); 1380 if (ret == -ENOSYS || ret == -ENODEV) 1381 dwc->usb2_generic_phy[i] = NULL; 1382 else 1383 return dev_err_probe(dev, ret, 1384 "failed to lookup phy %s\n", phy_name); 1385 } 1386 1387 if (dwc->num_usb2_ports == 1) 1388 sprintf(phy_name, "usb3-phy"); 1389 else 1390 sprintf(phy_name, "usb3-port%d", i); 1391 1392 dwc->usb3_generic_phy[i] = devm_phy_get(dev, phy_name); 1393 if (IS_ERR(dwc->usb3_generic_phy[i])) { 1394 ret = PTR_ERR(dwc->usb3_generic_phy[i]); 1395 if (ret == -ENOSYS || ret == -ENODEV) 1396 dwc->usb3_generic_phy[i] = NULL; 1397 else 1398 return dev_err_probe(dev, ret, 1399 "failed to lookup phy %s\n", phy_name); 1400 } 1401 } 1402 1403 return 0; 1404 } 1405 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki