Messages in this thread | | | Date | Tue, 4 Jan 2022 04:30:45 +0800 | From | kernel test robot <> | Subject | drivers/usb/cdns3/cdnsp-gadget.c:1178:6: warning: variable 'temp_64' set but not used |
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Hi Pawel,
FYI, the error/warning still remains.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: c9e6606c7fe92b50a02ce51dda82586ebdf99b48 commit: 3d82904559f4f5a2622db1b21de3edf2eded7664 usb: cdnsp: cdns3 Add main part of Cadence USBSSP DRD Driver date: 1 year ago config: i386-allmodconfig (https://download.01.org/0day-ci/archive/20220104/202201040405.a1EVUrln-lkp@intel.com/config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 104a827ea6de0cbe0f5faef4407552ede31d165c) 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 # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3d82904559f4f5a2622db1b21de3edf2eded7664 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 3d82904559f4f5a2622db1b21de3edf2eded7664 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 SHELL=/bin/bash drivers/gpu/drm/i915/ drivers/net/ethernet/intel/ice/ drivers/usb/cdns3/
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
>> drivers/usb/cdns3/cdnsp-gadget.c:1178:6: warning: variable 'temp_64' set but not used [-Wunused-but-set-variable] u64 temp_64; ^ 1 warning generated.
vim +/temp_64 +1178 drivers/usb/cdns3/cdnsp-gadget.c
1173 1174 static int cdnsp_run(struct cdnsp_device *pdev, 1175 enum usb_device_speed speed) 1176 { 1177 u32 fs_speed = 0; > 1178 u64 temp_64; 1179 u32 temp; 1180 int ret; 1181 1182 temp_64 = cdnsp_read_64(&pdev->ir_set->erst_dequeue); 1183 temp_64 &= ~ERST_PTR_MASK; 1184 temp = readl(&pdev->ir_set->irq_control); 1185 temp &= ~IMOD_INTERVAL_MASK; 1186 temp |= ((IMOD_DEFAULT_INTERVAL / 250) & IMOD_INTERVAL_MASK); 1187 writel(temp, &pdev->ir_set->irq_control); 1188 1189 temp = readl(&pdev->port3x_regs->mode_addr); 1190 1191 switch (speed) { 1192 case USB_SPEED_SUPER_PLUS: 1193 temp |= CFG_3XPORT_SSP_SUPPORT; 1194 break; 1195 case USB_SPEED_SUPER: 1196 temp &= ~CFG_3XPORT_SSP_SUPPORT; 1197 break; 1198 case USB_SPEED_HIGH: 1199 break; 1200 case USB_SPEED_FULL: 1201 fs_speed = PORT_REG6_FORCE_FS; 1202 break; 1203 default: 1204 dev_err(pdev->dev, "invalid maximum_speed parameter %d\n", 1205 speed); 1206 fallthrough; 1207 case USB_SPEED_UNKNOWN: 1208 /* Default to superspeed. */ 1209 speed = USB_SPEED_SUPER; 1210 break; 1211 } 1212 1213 if (speed >= USB_SPEED_SUPER) { 1214 writel(temp, &pdev->port3x_regs->mode_addr); 1215 cdnsp_set_link_state(pdev, &pdev->usb3_port.regs->portsc, 1216 XDEV_RXDETECT); 1217 } else { 1218 cdnsp_disable_port(pdev, &pdev->usb3_port.regs->portsc); 1219 } 1220 1221 cdnsp_set_link_state(pdev, &pdev->usb2_port.regs->portsc, 1222 XDEV_RXDETECT); 1223 1224 cdnsp_gadget_ep0_desc.wMaxPacketSize = cpu_to_le16(512); 1225 1226 writel(PORT_REG6_L1_L0_HW_EN | fs_speed, &pdev->port20_regs->port_reg6); 1227 1228 ret = cdnsp_start(pdev); 1229 if (ret) { 1230 ret = -ENODEV; 1231 goto err; 1232 } 1233 1234 temp = readl(&pdev->op_regs->command); 1235 temp |= (CMD_INTE); 1236 writel(temp, &pdev->op_regs->command); 1237 1238 temp = readl(&pdev->ir_set->irq_pending); 1239 writel(IMAN_IE_SET(temp), &pdev->ir_set->irq_pending); 1240 1241 return 0; 1242 err: 1243 cdnsp_halt(pdev); 1244 return ret; 1245 } 1246
--- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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