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perf python: Avoid duplicated code in get_tracepoint_field

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The code replicates computations done in evsel__tp_format, reuse
evsel__tp_format to simplify the python C code.

Reviewed-by: Howard Chu <howardchu95@gmail.com>
Signed-off-by: Ian Rogers <irogers@google.com>
Reviewed-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Link: https://lore.kernel.org/r/20250228222308.626803-9-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
This commit is contained in:
Ian Rogers
2025-02-28 14:23:05 -08:00
committed by Namhyung Kim
parent 07fc231617
commit 9e9472c148
1 changed files with 4 additions and 13 deletions
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17
tools/perf/util/python.c
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@@ -342,23 +342,14 @@ get_tracepoint_field(struct pyrf_event *pevent, PyObject *attr_name)
{
const char *str = _PyUnicode_AsString(PyObject_Str(attr_name));
struct evsel *evsel = pevent->evsel;
struct tep_event *tp_format = evsel__tp_format(evsel);
struct tep_format_field *field;
if (!evsel->tp_format) {
struct tep_event *tp_format;
tp_format = trace_event__tp_format_id(evsel->core.attr.config);
if (IS_ERR_OR_NULL(tp_format))
return NULL;
evsel->tp_format = tp_format;
}
field = tep_find_any_field(evsel->tp_format, str);
if (!field)
if (IS_ERR_OR_NULL(tp_format))
return NULL;
return tracepoint_field(pevent, field);
field = tep_find_any_field(tp_format, str);
return field ? tracepoint_field(pevent, field) : NULL;
}
#endif /* HAVE_LIBTRACEEVENT */