linux-kernel - Re: [PATCH V2 1/4] PCI: imx6: Add pci host wakeup support on imx platforms.

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Message-ID: <202312141726.nPrR7WDt-lkp@intel.com>
Date:   Thu, 14 Dec 2023 18:06:42 +0800
From:   kernel test robot <lkp@...el.com>
To:     Sherry Sun <sherry.sun@....com>, hongxing.zhu@....com,
        l.stach@...gutronix.de, lpieralisi@...nel.org, kw@...ux.com,
        robh@...nel.org, bhelgaas@...gle.com,
        krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org,
        shawnguo@...nel.org, s.hauer@...gutronix.de, kernel@...gutronix.de,
        festevam@...il.com
Cc:     llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
        linux-imx@....com, linux-pci@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH V2 1/4] PCI: imx6: Add pci host wakeup support on imx
 platforms.

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@intel.com/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@intel.com/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@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202312141726.nPrR7WDt-lkp@intel.com/

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