PERF_MEM_NA 157 arch/powerpc/perf/isa207-common.c u64 ret = PERF_MEM_NA; PERF_MEM_NA 141 arch/x86/events/intel/ds.c dse.val = PERF_MEM_NA; PERF_MEM_NA 1326 arch/x86/events/intel/ds.c u64 val = PERF_MEM_NA; PERF_MEM_NA 993 include/linux/perf_event.h data->data_src.val = PERF_MEM_NA;