Hi Stanley, 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 linus/master v6.4-rc6 next-20230614] [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/Stanley-Chang/phy-realtek-usb-Add-driver-for-the-Realtek-SoC-USB-2-0-PHY/20230614-173349 base: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing patch link: https://lore.kernel.org/r/20230614092850.21460-2-stanley_chang%40realtek.com patch subject: [PATCH v4 2/5] phy: realtek: usb: Add driver for the Realtek SoC USB 2.0 PHY config: sparc-allyesconfig (https://download.01.org/0day-ci/archive/20230614/202306142352.e4eBd3HX-lkp@xxxxxxxxx/config) compiler: sparc64-linux-gcc (GCC) 12.3.0 reproduce (this is a W=1 build): mkdir -p ~/bin wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git remote add usb https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git git fetch usb usb-testing git checkout usb/usb-testing b4 shazam https://lore.kernel.org/r/20230614092850.21460-2-stanley_chang@xxxxxxxxxxx # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.3.0 ~/bin/make.cross W=1 O=build_dir ARCH=sparc olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.3.0 ~/bin/make.cross W=1 O=build_dir ARCH=sparc SHELL=/bin/bash drivers/phy/realtek/ 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/202306142352.e4eBd3HX-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): drivers/phy/realtek/phy-rtk-usb2.c: In function 'parse_phy_data': >> drivers/phy/realtek/phy-rtk-usb2.c:1229:25: warning: variable 'phy_cfg' set but not used [-Wunused-but-set-variable] 1229 | struct phy_cfg *phy_cfg; | ^~~~~~~ vim +/phy_cfg +1229 drivers/phy/realtek/phy-rtk-usb2.c 1224 1225 static int parse_phy_data(struct rtk_phy *rtk_phy) 1226 { 1227 struct device *dev = rtk_phy->dev; 1228 struct device_node *node; > 1229 struct phy_cfg *phy_cfg; 1230 struct phy_parameter *phy_parameter; 1231 int ret = 0; 1232 int index; 1233 1234 node = dev->of_node; 1235 phy_cfg = rtk_phy->phy_cfg; 1236 1237 rtk_phy->phy_parameter = devm_kzalloc(dev, sizeof(struct phy_parameter) * 1238 rtk_phy->num_phy, GFP_KERNEL); 1239 if (!rtk_phy->phy_parameter) 1240 return -ENOMEM; 1241 1242 for (index = 0; index < rtk_phy->num_phy; index++) { 1243 phy_parameter = &((struct phy_parameter *)rtk_phy->phy_parameter)[index]; 1244 1245 phy_parameter->phy_reg.reg_wrap_vstatus = of_iomap(dev->of_node, 0); 1246 phy_parameter->phy_reg.reg_gusb2phyacc0 = of_iomap(dev->of_node, 1) + index; 1247 phy_parameter->phy_reg.vstatus_index = index; 1248 1249 if (of_property_read_bool(node, "realtek,inverse-hstx-sync-clock")) 1250 phy_parameter->inverse_hstx_sync_clock = true; 1251 else 1252 phy_parameter->inverse_hstx_sync_clock = false; 1253 1254 if (of_property_read_u32_index(node, "realtek,driving-level", 1255 index, &phy_parameter->driving_level)) 1256 phy_parameter->driving_level = DEFAULT_DC_DRIVING_VALUE; 1257 1258 if (of_property_read_u32_index(node, "realtek,driving-compensate", 1259 index, &phy_parameter->driving_compensate)) 1260 phy_parameter->driving_compensate = 0; 1261 1262 if (of_property_read_u32_index(node, "realtek,disconnection-compensate", 1263 index, &phy_parameter->disconnection_compensate)) 1264 phy_parameter->disconnection_compensate = 0; 1265 1266 get_phy_data_by_efuse(rtk_phy, phy_parameter, index); 1267 1268 update_dc_driving_level(rtk_phy, phy_parameter); 1269 1270 update_hs_clk_select(rtk_phy, phy_parameter); 1271 } 1272 1273 return ret; 1274 } 1275 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
