Re: [PATCH v3 2/2] powerpc: Enable CPU_FTR_ASYM_SMT for interleaved big-cores

On Wed, Jul 11, 2018 at 04:32:30PM +0800, kbuild test robot wrote:

Hi Gautham,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on powerpc/next]
[also build test ERROR on v4.18-rc4 next-20180710]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Gautham-R-Shenoy/powerpc-Detect-the-presence-of-big-cores-via-ibm-thread-groups/20180706-174756
base:   https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next
config: powerpc-g5_defconfig (attached as .config)
compiler: powerpc64-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
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
        GCC_VERSION=7.2.0 make.cross ARCH=powerpc 

All errors (new ones prefixed by >>):

   In file included from include/linux/static_key.h:1:0,
                    from include/linux/context_tracking_state.h:6,
                    from include/linux/vtime.h:5,
                    from include/linux/hardirq.h:8,
                    from include/linux/interrupt.h:11,
                    from include/linux/serial_core.h:25,
                    from include/linux/serial_8250.h:14,
                    from arch/powerpc/kernel/setup-common.c:33:
   arch/powerpc/kernel/setup-common.c: In function 'smp_setup_cpu_maps':

quoted

quoted

arch/powerpc/kernel/setup-common.c:777:25: error: 'cpu_feature_keys' undeclared (first use in this function); did you mean 'setup_feature_keys'?

      static_branch_enable(&cpu_feature_keys[key]);

Ok, so this needs to be enabled only on CONFIG_PPC_PSERIES and
CONFIG_PPC_POWERNV. Will fix this.


--
Thanks and Regards
gautham.