skip_idx 2288 tools/perf/util/machine.c int skip_idx = -1; skip_idx 2305 tools/perf/util/machine.c skip_idx = arch_skip_callchain_idx(thread, chain); skip_idx 2343 tools/perf/util/machine.c if (i == skip_idx || skip_idx 2397 tools/perf/util/machine.c if (j == skip_idx)