the build failure is:
arch/x86/kernel/built-in.o: In function `init_apic_mappings':
: undefined reference to `boot_cpu_physical_apicid'
arch/x86/kernel/built-in.o: In function `init_apic_mappings':
: undefined reference to `boot_cpu_physical_apicid'
arch/x86/kernel/built-in.o: In function `APIC_init_uniprocessor':
: undefined reference to `boot_cpu_physical_apicid'
arch/x86/kernel/built-in.o: In function `APIC_init_uniprocessor':
: undefined reference to `boot_cpu_physical_apicid'
arch/x86/kernel/built-in.o: In function `APIC_init_uniprocessor':
: undefined reference to `phys_cpu_present_map'
arch/x86/kernel/built-in.o: In function `setup_local_APIC':
: undefined reference to `phys_cpu_present_map'
arch/x86/kernel/built-in.o: In function `generic_processor_info':
: undefined reference to `phys_cpu_present_map'
arch/x86/kernel/built-in.o: In function `generic_processor_info':
: undefined reference to `num_processors'
arch/x86/kernel/built-in.o: In function `generic_processor_info':
: undefined reference to `num_processors'
arch/x86/mach-visws/built-in.o: In function `find_smp_config':
: undefined reference to `boot_cpu_physical_apicid'
arch/x86/mach-visws/built-in.o: In function `find_smp_config':
: undefined reference to `phys_cpu_present_map'