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perf parse-events: Pass ownership of the group name

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Pass ownership of the group name rather than copying and freeing the
original. This saves a memory allocation and copy.

Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Florian Fischer <florian.fischer@muhq.space>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.g.garry@oracle.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Kim Phillips <kim.phillips@amd.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Sean Christopherson <seanjc@google.com>
Cc: Steinar H. Gunderson <sesse@google.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20230312021543.3060328-2-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Ian Rogers 2023-03-11 18:15:39 -08:00 committed by Arnaldo Carvalho de Melo
parent 7abf0bccaa
commit 4bb311b29e
2 changed files with 3 additions and 2 deletions
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3
tools/perf/util/parse-events.c
View File

@ -1761,6 +1761,7 @@ parse_events__set_leader_for_uncore_aliase(char *name, struct list_head *list,
handled:
ret = 1;
free(name);
out:
free(leaders);
return ret;
@ -1786,7 +1787,7 @@ void parse_events__set_leader(char *name, struct list_head *list,
leader = arch_evlist__leader(list);
__perf_evlist__set_leader(list, &leader->core);
leader->group_name = name ? strdup(name) : NULL;
leader->group_name = name;
list_move(&leader->core.node, list);
}

2
tools/perf/util/parse-events.y
View File

@ -202,8 +202,8 @@ PE_NAME '{' events '}'
struct list_head *list = $3;
inc_group_count(list, _parse_state);
/* Takes ownership of $1. */
parse_events__set_leader($1, list, _parse_state);
free($1);
$$ = list;
}
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