Hi Masami, kernel test robot noticed the following build warnings: [auto build test WARNING on next-20230419] [cannot apply to shuah-kselftest/next shuah-kselftest/fixes bpf-next/master bpf/master linus/master rostedt-trace/for-next rostedt-trace/for-next-urgent v6.3-rc7 v6.3-rc6 v6.3-rc5 v6.3-rc7] [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/Masami-Hiramatsu-Google/fprobe-Pass-return-address-to-the-handlers/20230420-192935 patch link: https://lore.kernel.org/r/168198997089.1795549.1009510263722958117.stgit%40mhiramat.roam.corp.google.com patch subject: [PATCH v5 4/9] tracing/probes: Add tracepoint support on fprobe_event config: riscv-allmodconfig (https://download.01.org/0day-ci/archive/20230421/202304210803.19mc32SM-lkp@xxxxxxxxx/config) compiler: riscv64-linux-gcc (GCC) 12.1.0 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 # https://github.com/intel-lab-lkp/linux/commit/ecaf9aff228ea0fe18d72079792f4ff6a95263b7 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Masami-Hiramatsu-Google/fprobe-Pass-return-address-to-the-handlers/20230420-192935 git checkout ecaf9aff228ea0fe18d72079792f4ff6a95263b7 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=riscv olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=riscv SHELL=/bin/bash kernel/trace/ 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/202304210803.19mc32SM-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> kernel/trace/trace_fprobe.c:907:20: warning: no previous prototype for 'find_tracepoint' [-Wmissing-prototypes] 907 | struct tracepoint *find_tracepoint(const char *tp_name) | ^~~~~~~~~~~~~~~ vim +/find_tracepoint +907 kernel/trace/trace_fprobe.c 906 > 907 struct tracepoint *find_tracepoint(const char *tp_name) 908 { 909 struct __find_tracepoint_cb_data data = { 910 .tp_name = tp_name, 911 }; 912 913 for_each_kernel_tracepoint(__find_tracepoint_cb, &data); 914 915 return data.tpoint; 916 } 917 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests
