Hi Andy, kernel test robot noticed the following build warnings:
[auto build test WARNING on linus/master] [also build test WARNING on v6.15-rc1 next-20250408] [cannot apply to trace/for-next] [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/Andy-Chiu/riscv-ftrace-factor-out-code-defined-by-WITH_ARG/20250408-025114 base: linus/master patch link: https://lore.kernel.org/r/20250407180838.42877-4-andybnac%40gmail.com patch subject: [PATCH v4 04/12] kernel: ftrace: export ftrace_sync_ipi config: xtensa-randconfig-001-20250409 (https://download.01.org/0day-ci/archive/20250409/[email protected]/config) compiler: xtensa-linux-gcc (GCC) 11.5.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250409/[email protected]/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 <[email protected]> | Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/ All warnings (new ones prefixed by >>): >> kernel/trace/ftrace.c:191:6: warning: no previous prototype for >> 'ftrace_sync_ipi' [-Wmissing-prototypes] 191 | void ftrace_sync_ipi(void *data) | ^~~~~~~~~~~~~~~ vim +/ftrace_sync_ipi +191 kernel/trace/ftrace.c 190 > 191 void ftrace_sync_ipi(void *data) 192 { 193 /* Probably not needed, but do it anyway */ 194 smp_rmb(); 195 } 196 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
