CONFIG_GENERIC_IRQ_LEGACY_ALLOC_HWIRQ  913 include/linux/irq.h #ifdef CONFIG_GENERIC_IRQ_LEGACY_ALLOC_HWIRQ
CONFIG_GENERIC_IRQ_LEGACY_ALLOC_HWIRQ  807 kernel/irq/irqdesc.c #ifdef CONFIG_GENERIC_IRQ_LEGACY_ALLOC_HWIRQ