linux-kernel - Re: [PATCH 2/3] PCI/sysfs: create private functions for pci_create_legacy_files/pci_create_sysfs_dev

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Date:   Fri, 28 Apr 2023 04:38:26 +0800
From:   kernel test robot <lkp@...el.com>
To:     Alexander Stein <alexander.stein@...tq-group.com>,
        Bjorn Helgaas <helgaas@...nel.org>
Cc:     oe-kbuild-all@...ts.linux.dev,
        Alexander Stein <alexander.stein@...tq-group.com>,
        linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org,
        Korneliusz Osmenda <korneliuszo@...il.com>,
        Oliver Neukum <oneukum@...e.com>
Subject: Re: [PATCH 2/3] PCI/sysfs: create private functions for
 pci_create_legacy_files/pci_create_sysfs_dev_files

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-20230427]
[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: s390-allyesconfig (https://download.01.org/0day-ci/archive/20230428/202304280450.17v5JK13-lkp@intel.com/config)
compiler: s390-linux-gcc (GCC) 12.1.0
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://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=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=s390 olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=s390 SHELL=/bin/bash drivers/pci/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@...el.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202304280450.17v5JK13-lkp@intel.com/

All warnings (new ones prefixed by >>):

   drivers/pci/pci-sysfs.c:1256:12: warning: no previous prototype for 'pci_create_resource_files' [-Wmissing-prototypes]
    1256 | int __weak pci_create_resource_files(struct pci_dev *dev) { return 0; }
         |            ^~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/pci/pci-sysfs.c:1257:13: warning: no previous prototype for 'pci_remove_resource_files' [-Wmissing-prototypes]
    1257 | void __weak pci_remove_resource_files(struct pci_dev *dev) { return; }
         |             ^~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/pci/pci-sysfs.c:1502:18: warning: no previous prototype for '__pci_create_sysfs_dev_files' [-Wmissing-prototypes]
    1502 | int __must_check __pci_create_sysfs_dev_files(struct pci_dev *pdev)
         |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/pci/pci-sysfs.c:1015:13: warning: '__pci_create_legacy_files' defined but not used [-Wunused-function]
    1015 | static void __pci_create_legacy_files(struct pci_bus *b) {}
         |             ^~~~~~~~~~~~~~~~~~~~~~~~~


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