x86.git testing found that this broke the build:
arch/x86/kernel/acpi/boot.c: In function 'mp_register_ioapic':
arch/x86/kernel/acpi/boot.c:896: error: implicit declaration of function 'bad_ioapic'
arch/x86/kernel/acpi/boot.c: In function 'mp_override_legacy_irq':
arch/x86/kernel/acpi/boot.c:959: error: implicit declaration of function 'MP_intsrc_info'
with this config:
http://redhat.com/~mingo/misc/config-Tue_May_13_11_52_24_CEST_2008.bad
Ingo