From: Avi Kivity Kconfig.preempt is not included on some archs (for example, m68k). On those archs, the Kconfig machinery complains that KVM selects an undefined symbol PREEMPT_NOTIFIERS (which lives in Kconfig.preempt). So move the offending symbol into a Kconfig file which is included by everyone. Cc: Roman Zippel Cc: Geert Uytterhoeven Signed-off-by: Avi Kivity Cc: Ingo Molnar Signed-off-by: Andrew Morton --- init/Kconfig | 3 +++ kernel/Kconfig.preempt | 3 --- 2 files changed, 3 insertions(+), 3 deletions(-) diff -puN init/Kconfig~move-preempt_notifiers-into-an-always-included-kconfig init/Kconfig --- a/init/Kconfig~move-preempt_notifiers-into-an-always-included-kconfig +++ a/init/Kconfig @@ -689,3 +689,6 @@ config STOP_MACHINE Need stop_machine() primitive. source "block/Kconfig" + +config PREEMPT_NOTIFIERS + bool diff -puN kernel/Kconfig.preempt~move-preempt_notifiers-into-an-always-included-kconfig kernel/Kconfig.preempt --- a/kernel/Kconfig.preempt~move-preempt_notifiers-into-an-always-included-kconfig +++ a/kernel/Kconfig.preempt @@ -63,6 +63,3 @@ config PREEMPT_BKL Say Y here if you are building a kernel for a desktop system. Say N if you are unsure. -config PREEMPT_NOTIFIERS - bool - _