include/linux/spinlock_rt.h:115:9: error: expected expression before ‘do’ include/linux/spinlock_rt.h:115:9: error: ‘return’ with a value, in function returning void [-Werror=return-type] include/linux/spinlock_rt.h:115:9: error: expected expression before ‘do’ include/linux/spinlock_rt.h:115:9: error: ‘return’ with a value, in function returning void [-Werror=return-type]