Hi Sherry, kernel test robot noticed the following build warnings: [auto build test WARNING on pci/next] [also build test WARNING on pci/for-linus shawnguo/for-next robh/for-next linus/master v6.7-rc5 next-20231214] [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/Sherry-Sun/PCI-imx6-Add-pci-host-wakeup-support-on-imx-platforms/20231213-173031 base: https://git.kernel.org/pub/scm/linux/kernel/git/pci/pci.git next patch link: https://lore.kernel.org/r/20231213092850.1706042-2-sherry.sun%40nxp.com patch subject: [PATCH V2 1/4] PCI: imx6: Add pci host wakeup support on imx platforms. config: arm-randconfig-004-20231213 (https://download.01.org/0day-ci/archive/20231214/202312141726.nPrR7WDt-lkp@xxxxxxxxx/config) compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project.git 4a5ac14ee968ff0ad5d2cc1ffa0299048db4c88a) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231214/202312141726.nPrR7WDt-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/202312141726.nPrR7WDt-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> drivers/pci/controller/dwc/pci-imx6.c:1267:13: warning: no previous prototype for function 'host_wake_irq_handler' [-Wmissing-prototypes] 1267 | irqreturn_t host_wake_irq_handler(int irq, void *priv) | ^ drivers/pci/controller/dwc/pci-imx6.c:1267:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 1267 | irqreturn_t host_wake_irq_handler(int irq, void *priv) | ^ | static 1 warning generated. vim +/host_wake_irq_handler +1267 drivers/pci/controller/dwc/pci-imx6.c 1266 > 1267 irqreturn_t host_wake_irq_handler(int irq, void *priv) 1268 { 1269 struct imx6_pcie *imx6_pcie = priv; 1270 struct device *dev = imx6_pcie->pci->dev; 1271 1272 /* Notify PM core we are wakeup source */ 1273 pm_wakeup_event(dev, 0); 1274 pm_system_wakeup(); 1275 1276 return IRQ_HANDLED; 1277 } 1278 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
