Hi Hans, kernel test robot noticed the following build warnings: [auto build test WARNING on a1cffe8cc8aef85f1b07c4464f0998b9785b795a] url: https://github.com/intel-lab-lkp/linux/commits/Hans-Zhang/PCI-Introduce-generic-capability-search-functions/20250322-004312 base: a1cffe8cc8aef85f1b07c4464f0998b9785b795a patch link: https://lore.kernel.org/r/20250321163803.391056-2-18255117159%40163.com patch subject: [v5 1/4] PCI: Introduce generic capability search functions config: arm-randconfig-001-20250322 (https://download.01.org/0day-ci/archive/20250322/202503220356.59PxEhDx-lkp@xxxxxxxxx/config) compiler: arm-linux-gnueabi-gcc (GCC) 7.5.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250322/202503220356.59PxEhDx-lkp@xxxxxxxxx/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@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202503220356.59PxEhDx-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): In file included from arch/arm/mm/iomap.c:9:0: include/linux/pci.h:2025:1: error: expected identifier or '(' before '{' token { return 0; } ^ include/linux/pci.h:2029:1: error: expected identifier or '(' before '{' token { return 0; } ^ In file included from arch/arm/mm/iomap.c:9:0: >> include/linux/pci.h:2023:1: warning: 'pci_host_bridge_find_capability' declared 'static' but never defined [-Wunused-function] pci_host_bridge_find_capability(void *priv, pci_host_bridge_read_cfg read_cfg, ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ >> include/linux/pci.h:2027:1: warning: 'pci_host_bridge_find_ext_capability' declared 'static' but never defined [-Wunused-function] pci_host_bridge_find_ext_capability(void *priv, ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ vim +2023 include/linux/pci.h 2000 2001 static inline void pci_set_master(struct pci_dev *dev) { } 2002 static inline void pci_clear_master(struct pci_dev *dev) { } 2003 static inline int pci_enable_device(struct pci_dev *dev) { return -EIO; } 2004 static inline void pci_disable_device(struct pci_dev *dev) { } 2005 static inline int pcim_enable_device(struct pci_dev *pdev) { return -EIO; } 2006 static inline int pci_assign_resource(struct pci_dev *dev, int i) 2007 { return -EBUSY; } 2008 static inline int __must_check __pci_register_driver(struct pci_driver *drv, 2009 struct module *owner, 2010 const char *mod_name) 2011 { return 0; } 2012 static inline int pci_register_driver(struct pci_driver *drv) 2013 { return 0; } 2014 static inline void pci_unregister_driver(struct pci_driver *drv) { } 2015 static inline u8 pci_find_capability(struct pci_dev *dev, int cap) 2016 { return 0; } 2017 static inline u8 pci_find_next_capability(struct pci_dev *dev, u8 post, int cap) 2018 { return 0; } 2019 static inline u16 pci_find_ext_capability(struct pci_dev *dev, int cap) 2020 { return 0; } 2021 typedef u32 (*pci_host_bridge_read_cfg)(void *priv, int where, int size); 2022 static inline u8 > 2023 pci_host_bridge_find_capability(void *priv, pci_host_bridge_read_cfg read_cfg, 2024 u8 cap); > 2025 { return 0; } 2026 static inline u16 > 2027 pci_host_bridge_find_ext_capability(void *priv, 2028 pci_host_bridge_read_cfg read_cfg, u8 cap); > 2029 { return 0; } 2030 static inline u64 pci_get_dsn(struct pci_dev *dev) 2031 { return 0; } 2032 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
