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@xxxxxxxxx/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@xxxxxxxxx> | Link: https://lore.kernel.org/oe-kbuild-all/202305071649.zjynmg3E-lkp@xxxxxxxxx/ 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
