Re: [PATCH v5 2/2] PCI: Implement custom llseek for sysfs resource entries

[kernel test robot <lkp@intel.com>]

Hi Valentine,

kernel test robot noticed the following build warnings:

[auto build test WARNING on 89bf6209cad66214d3774dac86b6bbf2aec6a30d]

url:    https://github.com/intel-lab-lkp/linux/commits/Valentine-Sinitsyn/PCI-Implement-custom-llseek-for-sysfs-resource-entries/20230823-210101
base:   89bf6209cad66214d3774dac86b6bbf2aec6a30d
patch link:    https://lore.kernel.org/r/20230823125834.492298-2-valesini%40yandex-team.ru
patch subject: [PATCH v5 2/2] PCI: Implement custom llseek for sysfs resource entries
config: arc-randconfig-r023-20230824 (https://download.01.org/0day-ci/archive/20230825/202308252133.YO5zs5rv-lkp@intel.com/config)
compiler: arc-elf-gcc (GCC) 13.2.0
reproduce: (https://download.01.org/0day-ci/archive/20230825/202308252133.YO5zs5rv-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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202308252133.YO5zs5rv-lkp@intel.com/

All warnings (new ones prefixed by >>):

   drivers/pci/pci-sysfs.c:1268:12: warning: no previous prototype for 'pci_create_resource_files' [-Wmissing-prototypes]
    1268 | int __weak pci_create_resource_files(struct pci_dev *dev) { return 0; }
         |            ^~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/pci/pci-sysfs.c:1269:13: warning: no previous prototype for 'pci_remove_resource_files' [-Wmissing-prototypes]
    1269 | void __weak pci_remove_resource_files(struct pci_dev *dev) { return; }
         |             ^~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/pci/pci-sysfs.c:838:15: warning: 'pci_llseek_resource' defined but not used [-Wunused-function]
     838 | static loff_t pci_llseek_resource(struct file *filep,
         |               ^~~~~~~~~~~~~~~~~~~


vim +/pci_llseek_resource +838 drivers/pci/pci-sysfs.c

   837	
 > 838	static loff_t pci_llseek_resource(struct file *filep,
   839					  struct kobject *kobj __always_unused,
   840					  struct bin_attribute *attr,
   841					  loff_t offset, int whence)
   842	{
   843		return fixed_size_llseek(filep, offset, whence, attr->size);
   844	}
   845	

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