Hi Xianwei, kernel test robot noticed the following build warnings: [auto build test WARNING on dff71e5c6076314f3eefe700abd6af834c57bd64] url: https://github.com/intel-lab-lkp/linux/commits/Xianwei-Zhao-via-B4-Relay/dt-bindings-rtc-Add-Amlogic-A311L2-and-A113X2-rtc/20240826-125504 base: dff71e5c6076314f3eefe700abd6af834c57bd64 patch link: https://lore.kernel.org/r/20240823-rtc-v1-2-6f70381da283%40amlogic.com patch subject: [PATCH 2/3] rtc: support for the Amlogic on-chip RTC config: arc-randconfig-002-20240826 (https://download.01.org/0day-ci/archive/20240826/202408262106.tU1zTUfx-lkp@xxxxxxxxx/config) compiler: arc-elf-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240826/202408262106.tU1zTUfx-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/202408262106.tU1zTUfx-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> drivers/rtc/rtc-amlogic.c:545:12: warning: 'aml_rtc_resume' defined but not used [-Wunused-function] 545 | static int aml_rtc_resume(struct device *dev) | ^~~~~~~~~~~~~~ >> drivers/rtc/rtc-amlogic.c:535:12: warning: 'aml_rtc_suspend' defined but not used [-Wunused-function] 535 | static int aml_rtc_suspend(struct device *dev) | ^~~~~~~~~~~~~~~ vim +/aml_rtc_resume +545 drivers/rtc/rtc-amlogic.c 534 > 535 static int aml_rtc_suspend(struct device *dev) 536 { 537 struct aml_rtc_data *rtc = dev_get_drvdata(dev); 538 539 if (device_may_wakeup(dev)) 540 enable_irq_wake(rtc->irq); 541 542 return 0; 543 } 544 > 545 static int aml_rtc_resume(struct device *dev) 546 { 547 struct aml_rtc_data *rtc = dev_get_drvdata(dev); 548 549 if (device_may_wakeup(dev)) 550 disable_irq_wake(rtc->irq); 551 552 return 0; 553 } 554 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki