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-rc3 next-20210315] [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-la... base: https://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest.git next config: i386-allyesconfig (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): # https://github.com/0day-ci/linux/commit/d03a0be76e0e0ce7efdd25c5e5fbf79fe... 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/20210315-195036 git checkout d03a0be76e0e0ce7efdd25c5e5fbf79fe699febd # save the attached .config to linux build tree make W=1 ARCH=i386 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): 34 | void run_smp_call_function_test(unsigned int cpu) | ^~~~~~~~~~~~~~~~~~~~~~~~~~ vim +/run_smp_call_function_test +34 drivers/cpuidle/test-cpuidle_latency.c 33 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@lists.01.org