union_ptr 470 arch/parisc/kernel/irq.c union irq_stack_union *union_ptr; union_ptr 474 arch/parisc/kernel/irq.c union_ptr = &per_cpu(irq_stack_union, smp_processor_id()); union_ptr 475 arch/parisc/kernel/irq.c irq_stack = (unsigned long) &union_ptr->stack; union_ptr 483 arch/parisc/kernel/irq.c irq_stack_in_use = (volatile unsigned int *)__ldcw_align(union_ptr);