nack_mask 555 arch/sparc/kernel/smp_64.c u64 dispatch_stat, nack_mask; nack_mask 559 arch/sparc/kernel/smp_64.c nack_mask = busy_mask << 1; nack_mask 564 arch/sparc/kernel/smp_64.c if (!(dispatch_stat & (busy_mask | nack_mask))) {