HARDIRQ_SHIFT 53 include/linux/hardirq.h #define HARDIRQ_MASK (__IRQ_MASK(HARDIRQ_BITS) << HARDIRQ_SHIFT) HARDIRQ_SHIFT 57 include/linux/hardirq.h #define HARDIRQ_OFFSET (1UL << HARDIRQ_SHIFT) HARDIRQ_SHIFT 59 include/linux/hardirq.h #if PREEMPT_ACTIVE < (1 << (HARDIRQ_SHIFT + HARDIRQ_BITS)) HARDIRQ_SHIFT 1197 kernel/lockdep.c curr->hardirq_context, hardirq_count() >> HARDIRQ_SHIFT, HARDIRQ_SHIFT 1805 kernel/lockdep.c trace_hardirq_context(curr), hardirq_count() >> HARDIRQ_SHIFT, HARDIRQ_SHIFT 681 kernel/rcuclassic.c hardirq_count() <= (1 << HARDIRQ_SHIFT))) { HARDIRQ_SHIFT 930 kernel/rcupreempt.c hardirq_count() <= (1 << HARDIRQ_SHIFT))) {