evsel__group_pmu_name triggered an asan error as a list_head was cast
to an evsel, when it was the head, and the accessed as if it were a
full evsel. Further investigation showed problematic list iteration
for evsel__group_pmu_name whilst the list was being sorted so switch
to pre-computation.

v2: Address review comments/feedback from Adrian Hunter
    <adrian.hunter@intel.com>.

Ian Rogers (2):
  perf evsel: evsel__group_pmu_name fixes
  perf evsel: for_each_group fixes

 tools/perf/util/evsel.c         | 31 ++++-----------
 tools/perf/util/evsel.h         | 26 +++++++-----
 tools/perf/util/evsel_fprintf.c |  1 +
 tools/perf/util/parse-events.c  | 70 +++++++++++++++++++++++++++------
 4 files changed, 84 insertions(+), 44 deletions(-)

-- 
2.40.1.698.g37aff9b760-goog