tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 3016126ef302b602feaa8a7b99e4f85987536d65 commit: fa75636857993e25030c3db31444d2aa01d5d9de [3620/3684] RAS: Report ARM processor information to userspace config: x86_64-defconfig (https://download.01.org/0day-ci/archive/20240301/202403010924.KlNHxAf6-lkp@i...) compiler: gcc-11 (Debian 11.3.0-12) 11.3.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240301/202403010924.KlNHxAf6-lkp@i...) 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/202403010924.KlNHxAf6-lkp@intel.com/ All warnings (new ones prefixed by >>): In file included from arch/x86/kernel/cpu/mce/core.c:36: include/linux/ras.h:45:1: error: return type defaults to 'int' [-Werror=implicit-int] 45 | log_arm_hw_error(struct cper_sec_proc_arm *err) { return; } | ^~~~~~~~~~~~~~~~

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include/linux/ras.h:45:1: warning: no previous prototype for 'log_arm_hw_error' [-Wmissing-prototypes] include/linux/ras.h: In function 'log_arm_hw_error': include/linux/ras.h:45:51: warning: 'return' with no value, in function returning non-void [-Wreturn-type] 45 | log_arm_hw_error(struct cper_sec_proc_arm *err) { return; } | ^~~~~~ include/linux/ras.h:45:1: note: declared here 45 | log_arm_hw_error(struct cper_sec_proc_arm *err) { return; } | ^~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors

vim +/log_arm_hw_error +45 include/linux/ras.h fa75636857993e Shengwei Luo 2022-02-23 40 fa75636857993e Shengwei Luo 2022-02-23 41 #ifdef CONFIG_RAS_ARM_EVENT_INFO 0607512d0a8d7f Arnd Bergmann 2017-06-27 42 static inline void fa75636857993e Shengwei Luo 2022-02-23 43 log_arm_hw_error(struct cper_sec_proc_arm *err, const u8 sev) { return; } fa75636857993e Shengwei Luo 2022-02-23 44 #else 0607512d0a8d7f Arnd Bergmann 2017-06-27 @45 log_arm_hw_error(struct cper_sec_proc_arm *err) { return; } 297b64c74385fc Tyler Baicar 2017-06-21 46 #endif 297b64c74385fc Tyler Baicar 2017-06-21 47 :::::: The code at line 45 was first introduced by commit :::::: 0607512d0a8d7fac86667466b884095e04b10a59 ras: mark stub functions as 'inline' :::::: TO: Arnd Bergmann <arnd@arndb.de> :::::: CC: Will Deacon <will.deacon@arm.com> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki