Hi Kajol, Thank you for the patch! Yet something to improve: [auto build test ERROR on powerpc/next] [also build test ERROR on linus/master v5.7-rc4 next-20200508] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system. BTW, we also suggest to use '--base' option to specify the base tree in git format-patch, please see https://stackoverflow.com/a/37406982] url: https://github.com/0day-ci/linux/commits/Kajol-Jain/powerpc-hv-24x7-Expose-chip-sockets-info-to-add-json-file-metric-support-for-the-hv_24x7-socket-chip-level-events/20200507-032548 base: https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next config: powerpc-randconfig-r013-20200508 (attached as .config) compiler: powerpc64-linux-gcc (GCC) 9.3.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day GCC_VERSION=9.3.0 make.cross ARCH=powerpc If you fix the issue, kindly add following tag as appropriate Reported-by: kbuild test robot All errors (new ones prefixed by >>): >> arch/powerpc/platforms/pseries/mobility.c:48:20: error: static declaration of 'read_sys_info_pseries' follows non-static declaration 48 | static inline void read_sys_info_pseries(void) { } | ^~~~~~~~~~~~~~~~~~~~~ In file included from arch/powerpc/platforms/pseries/mobility.c:22: arch/powerpc/include/asm/rtas.h:485:13: note: previous declaration of 'read_sys_info_pseries' was here 485 | extern void read_sys_info_pseries(void); | ^~~~~~~~~~~~~~~~~~~~~ vim +/read_sys_info_pseries +48 arch/powerpc/platforms/pseries/mobility.c 44 45 #ifdef CONFIG_HV_PERF_CTRS 46 void read_sys_info_pseries(void); 47 #else > 48 static inline void read_sys_info_pseries(void) { } 49 #endif 50 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org