kernel test robot <lkp@xxxxxxxxx> writes: > Hi Nicholas, > > I love your patch! Yet something to improve: > > [auto build test ERROR on powerpc/next] > [also build test ERROR on scottwood/next v5.8-rc2 next-20200626] > [cannot apply to kvm-ppc/kvm-ppc-next] > [If your patch is applied to the wrong git tree, kindly drop us a note. > And when submitting patch, we suggest to use as documented in > https://git-scm.com/docs/git-format-patch] > > url: https://github.com/0day-ci/linux/commits/Nicholas-Piggin/powerpc-pseries-IPI-doorbell-improvements/20200627-230544 > base: https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next > config: powerpc-randconfig-c003-20200628 (attached as .config) > compiler: powerpc64-linux-gcc (GCC) 9.3.0 > If you fix the issue, kindly add following tag as appropriate > Reported-by: kernel test robot <lkp@xxxxxxxxx> > > All error/warnings (new ones prefixed by >>): > > In file included from arch/powerpc/kernel/asm-offsets.c:38: > arch/powerpc/include/asm/dbell.h: In function 'doorbell_global_ipi': >>> arch/powerpc/include/asm/dbell.h:114:12: error: implicit declaration of function 'get_hard_smp_processor_id'; did you mean 'raw_smp_processor_id'? [-Werror=implicit-function-declaration] > 114 | u32 tag = get_hard_smp_processor_id(cpu); > | ^~~~~~~~~~~~~~~~~~~~~~~~~ > | raw_smp_processor_id > arch/powerpc/include/asm/dbell.h: In function 'doorbell_try_core_ipi': >>> arch/powerpc/include/asm/dbell.h:146:28: error: implicit declaration of function 'cpu_sibling_mask'; did you mean 'cpu_online_mask'? [-Werror=implicit-function-declaration] > 146 | if (cpumask_test_cpu(cpu, cpu_sibling_mask(this_cpu))) { > | ^~~~~~~~~~~~~~~~ > | cpu_online_mask >>> arch/powerpc/include/asm/dbell.h:146:28: warning: passing argument 2 of 'cpumask_test_cpu' makes pointer from integer without a cast [-Wint-conversion] > 146 | if (cpumask_test_cpu(cpu, cpu_sibling_mask(this_cpu))) { > | ^~~~~~~~~~~~~~~~~~~~~~~~~~ Seems like CONFIG_SMP=n is probably the root cause. You could try including asm/smp.h, but good chance that will lead to header soup. Other option would be to wrap the whole lot in #ifdef CONFIG_SMP? cheers
