last_irq_sum 51 arch/sparc/kernel/nmi.c static DEFINE_PER_CPU(unsigned int, last_irq_sum); last_irq_sum 106 arch/sparc/kernel/nmi.c if (!touched && __this_cpu_read(last_irq_sum) == sum) { last_irq_sum 112 arch/sparc/kernel/nmi.c __this_cpu_write(last_irq_sum, sum);