Hi Pratik,

[FYI, it's a private test report for your RFC patch.]
[auto build test WARNING on kselftest/next]
[also build test WARNING on pm/linux-next linus/master daniel.lezcano/clockevents/next v5.12-rc7 next-20210412]
[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]

url:    https://github.com/0day-ci/linux/commits/Pratik-Rajesh-Sampat/CPU-Idle-latency-selftest-framework/20210412-154405
base:   https://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest.git next
config: mips-randconfig-r024-20210413 (attached as .config)
compiler: mips64el-linux-gcc (GCC) 9.3.0
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://github.com/0day-ci/linux/commit/9a7bfb10e1fb1a0505295f7c662dc2c26823d589
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Pratik-Rajesh-Sampat/CPU-Idle-latency-selftest-framework/20210412-154405
        git checkout 9a7bfb10e1fb1a0505295f7c662dc2c26823d589
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=mips 

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 >>):

>> drivers/cpuidle/test-cpuidle_latency.c:34:6: warning: no previous prototype for 'run_smp_call_function_test' [-Wmissing-prototypes]
      34 | void run_smp_call_function_test(unsigned int cpu)
         |      ^~~~~~~~~~~~~~~~~~~~~~~~~~


vim +/run_smp_call_function_test +34 drivers/cpuidle/test-cpuidle_latency.c

    33	
  > 34	void run_smp_call_function_test(unsigned int cpu)
    35	{
    36		ipi_wakeup.src_cpu = smp_processor_id();
    37		ipi_wakeup.dest_cpu = cpu;
    38		ipi_wakeup.time_start = ktime_get();
    39		smp_call_function_single(cpu, measure_latency, &ipi_wakeup, 1);
    40	}
    41	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org