hist_entry__cmp_nop 1641 tools/perf/builtin-diff.c fmt->cmp = hist_entry__cmp_nop; hist_entry__cmp_nop 1642 tools/perf/builtin-diff.c fmt->collapse = hist_entry__cmp_nop; hist_entry__cmp_nop 1668 tools/perf/builtin-diff.c fmt->sort = hist_entry__cmp_nop; hist_entry__cmp_nop 1671 tools/perf/builtin-diff.c fmt->sort = hist_entry__cmp_nop; hist_entry__cmp_nop 1734 tools/perf/builtin-diff.c fmt->cmp = hist_entry__cmp_nop; hist_entry__cmp_nop 1735 tools/perf/builtin-diff.c fmt->collapse = hist_entry__cmp_nop; hist_entry__cmp_nop 1755 tools/perf/builtin-diff.c fmt->sort = hist_entry__cmp_nop;