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Date:   Sun, 7 May 2023 17:05:45 +0800
From:   kernel test robot <lkp@intel.com>
To:     Alexander Stein <alexander.stein@ew.tq-group.com>,
        Bjorn Helgaas <helgaas@kernel.org>
Cc:     llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev,
        Alexander Stein <alexander.stein@ew.tq-group.com>,
        linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org,
        Korneliusz Osmenda <korneliuszo@gmail.com>,
        Oliver Neukum <oneukum@suse.com>
Subject: Re: [PATCH 2/3] PCI/sysfs: create private functions for
 pci_create_legacy_files/pci_create_sysfs_dev_files
Message-ID: <202305071649.zjynmg3E-lkp@intel.com>
References: <20230427142901.3570536-3-alexander.stein@ew.tq-group.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
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In-Reply-To: <20230427142901.3570536-3-alexander.stein@ew.tq-group.com>
Precedence: bulk

Hi Alexander,

kernel test robot noticed the following build warnings:

[auto build test WARNING on pci/next]
[also build test WARNING on pci/for-linus linus/master v6.3 next-20230505]
[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/Alexander-Stein/PCI-sysfs-sort-headers-alphabetically/20230427-223059
base:   https://git.kernel.org/pub/scm/linux/kernel/git/pci/pci.git next
patch link:    https://lore.kernel.org/r/20230427142901.3570536-3-alexander.stein%40ew.tq-group.com
patch subject: [PATCH 2/3] PCI/sysfs: create private functions for pci_create_legacy_files/pci_create_sysfs_dev_files
config: mips-maltaup_defconfig (https://download.01.org/0day-ci/archive/20230507/202305071649.zjynmg3E-lkp@intel.com/config)
compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project b0fb98227c90adf2536c9ad644a74d5e92961111)
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
        # install mips cross compiling tool for clang build
        # apt-get install binutils-mipsel-linux-gnu
        # https://github.com/intel-lab-lkp/linux/commit/cbc778730116b49890b5c41ffc9fc664b566e3c4
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Alexander-Stein/PCI-sysfs-sort-headers-alphabetically/20230427-223059
        git checkout cbc778730116b49890b5c41ffc9fc664b566e3c4
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=mips olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=mips SHELL=/bin/bash drivers/pci/ mm/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202305071649.zjynmg3E-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/pci/pci-sysfs.c:1502:18: warning: no previous prototype for function '__pci_create_sysfs_dev_files' [-Wmissing-prototypes]
   int __must_check __pci_create_sysfs_dev_files(struct pci_dev *pdev)
                    ^
   drivers/pci/pci-sysfs.c:1502:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   int __must_check __pci_create_sysfs_dev_files(struct pci_dev *pdev)
   ^
   static 
   drivers/pci/pci-sysfs.c:1015:13: warning: unused function '__pci_create_legacy_files' [-Wunused-function]
   static void __pci_create_legacy_files(struct pci_bus *b) {}
               ^
   2 warnings generated.


vim +/__pci_create_sysfs_dev_files +1502 drivers/pci/pci-sysfs.c

  1501	
> 1502	int __must_check __pci_create_sysfs_dev_files(struct pci_dev *pdev)
  1503	{
  1504		return pci_create_resource_files(pdev);
  1505	}
  1506	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests