Messages in this thread |  | | Date | Mon, 1 Nov 2021 05:46:26 +0800 | From | kernel test robot <> | Subject | [rostedt-trace:for-next 58/100] samples/ftrace/ftrace-direct-multi.c:8:6: warning: no previous prototype for function 'my_direct_func' |
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace.git for-next head: 93d76e4a0e0112b320c4f0e2a3930ad634628c58 commit: 5fae941b9a6f95773df644e7cf304bf199707876 [58/100] ftrace/samples: Add multi direct interface test module config: x86_64-randconfig-r024-20211031 (attached as .config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 82ed106567063ea269c6d5669278b733e173a42f) 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/rostedt/linux-trace.git/commit/?id=5fae941b9a6f95773df644e7cf304bf199707876 git remote add rostedt-trace https://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace.git git fetch --no-tags rostedt-trace for-next git checkout 5fae941b9a6f95773df644e7cf304bf199707876 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=x86_64
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
>> samples/ftrace/ftrace-direct-multi.c:8:6: warning: no previous prototype for function 'my_direct_func' [-Wmissing-prototypes] void my_direct_func(unsigned long ip) ^ samples/ftrace/ftrace-direct-multi.c:8:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void my_direct_func(unsigned long ip) ^ static 1 warning generated.
vim +/my_direct_func +8 samples/ftrace/ftrace-direct-multi.c
7 > 8 void my_direct_func(unsigned long ip) 9 { 10 trace_printk("ip %lx\n", ip); 11 } 12
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