tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: ac2dbcb2630a54db6d68c792a6cfff34c6bd5232 commit: a4f256bae217c9679528b4957b6dc68e52cd4782 [1614/1614] vfs: add bare tracepoints for vfs read and release config: arm64-randconfig-001-20250506 (https://download.01.org/0day-ci/archive/20250507/202505070314.0zdCBK7T-lkp@i...) compiler: aarch64-linux-gcc (GCC) 14.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250507/202505070314.0zdCBK7T-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/202505070314.0zdCBK7T-lkp@intel.com/ All warnings (new ones prefixed by >>): fs/read_write.c:483:9: warning: no previous prototype for '__vfs_write' [-Wmissing-prototypes] 483 | ssize_t __vfs_write(struct file *file, const char __user *p, size_t count, | ^~~~~~~~~~~ In file included from include/trace/define_trace.h:96, from include/trace/events/fs.h:33, from fs/read_write.c:28:

...

include/trace/trace_events.h:26:23: warning: 'str__fs__trace_system_name' defined but not used [-Wunused-const-variable=] 26 | #define __app__(x, y) str__##x##y | ^~~~~ include/trace/trace_events.h:27:21: note: in expansion of macro '__app__' 27 | #define __app(x, y) __app__(x, y) | ^~~~~~~ include/trace/trace_events.h:29:29: note: in expansion of macro '__app' 29 | #define TRACE_SYSTEM_STRING __app(TRACE_SYSTEM_VAR,__trace_system_name) | ^~~~~ include/trace/trace_events.h:32:27: note: in expansion of macro 'TRACE_SYSTEM_STRING' 32 | static const char TRACE_SYSTEM_STRING[] = \ | ^~~~~~~~~~~~~~~~~~~ include/trace/trace_events.h:35:1: note: in expansion of macro 'TRACE_MAKE_SYSTEM_STR' 35 | TRACE_MAKE_SYSTEM_STR(); | ^~~~~~~~~~~~~~~~~~~~~ fs/read_write.c:90: warning: Function parameter or member 'maxsize' not described in 'generic_file_llseek_size' fs/read_write.c:90: warning: Excess function parameter 'size' description in 'generic_file_llseek_size'

vim +/str__fs__trace_system_name +26 include/trace/trace_events.h acd388fd3af350 include/trace/ftrace.h Steven Rostedt (Red Hat 2015-03-31 25) acd388fd3af350 include/trace/ftrace.h Steven Rostedt (Red Hat 2015-03-31 @26) #define __app__(x, y) str__##x##y acd388fd3af350 include/trace/ftrace.h Steven Rostedt (Red Hat 2015-03-31 27) #define __app(x, y) __app__(x, y) acd388fd3af350 include/trace/ftrace.h Steven Rostedt (Red Hat 2015-03-31 28) :::::: The code at line 26 was first introduced by commit :::::: acd388fd3af350ab24c6ab6f19b83fc4a4f3aa60 tracing: Give system name a pointer :::::: TO: Steven Rostedt (Red Hat) <rostedt@goodmis.org> :::::: CC: Steven Rostedt <rostedt@goodmis.org> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki