tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: bb6ee10133faa3c4742ab8343b5e488cdb29445e commit: e999995c84c3abb6dcae83f8c35942a8d4ee0451 [7006/8600] ftrace: cleanup ftrace_graph_caller enable and disable config: microblaze-buildonly-randconfig-r006-20220504 (https://download.01.org/0day-ci/archive/20220505/202205050438.jIyxoMNu-lkp@xxxxxxxxx/config) compiler: microblaze-linux-gcc (GCC) 11.3.0 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://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=e999995c84c3abb6dcae83f8c35942a8d4ee0451 git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout e999995c84c3abb6dcae83f8c35942a8d4ee0451 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross W=1 O=build_dir ARCH=microblaze SHELL=/bin/bash kernel/trace/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): >> kernel/trace/fgraph.c:37:12: warning: no previous prototype for 'ftrace_enable_ftrace_graph_caller' [-Wmissing-prototypes] 37 | int __weak ftrace_enable_ftrace_graph_caller(void) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ >> kernel/trace/fgraph.c:46:12: warning: no previous prototype for 'ftrace_disable_ftrace_graph_caller' [-Wmissing-prototypes] 46 | int __weak ftrace_disable_ftrace_graph_caller(void) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ kernel/trace/fgraph.c:241:15: warning: no previous prototype for 'ftrace_return_to_handler' [-Wmissing-prototypes] 241 | unsigned long ftrace_return_to_handler(unsigned long frame_pointer) | ^~~~~~~~~~~~~~~~~~~~~~~~ kernel/trace/fgraph.c:356:6: warning: no previous prototype for 'ftrace_graph_sleep_time_control' [-Wmissing-prototypes] 356 | void ftrace_graph_sleep_time_control(bool enable) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ vim +/ftrace_enable_ftrace_graph_caller +37 kernel/trace/fgraph.c 32 33 /* 34 * archs can override this function if they must do something 35 * to enable hook for graph tracer. 36 */ > 37 int __weak ftrace_enable_ftrace_graph_caller(void) 38 { 39 return 0; 40 } 41 42 /* 43 * archs can override this function if they must do something 44 * to disable hook for graph tracer. 45 */ > 46 int __weak ftrace_disable_ftrace_graph_caller(void) 47 { 48 return 0; 49 } 50 -- 0-DAY CI Kernel Test Service https://01.org/lkp
