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Message-Id: <20230126011854.198243-2-irogers@google.com>
Date:   Wed, 25 Jan 2023 17:18:43 -0800
From:   Ian Rogers <irogers@...gle.com>
To:     John Garry <john.g.garry@...cle.com>,
        Will Deacon <will@...nel.org>,
        James Clark <james.clark@....com>,
        Mike Leach <mike.leach@...aro.org>,
        Leo Yan <leo.yan@...aro.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...nel.org>,
        Namhyung Kim <namhyung@...nel.org>,
        Adrian Hunter <adrian.hunter@...el.com>,
        Kan Liang <kan.liang@...ux.intel.com>,
        Kim Phillips <kim.phillips@....com>,
        Florian Fischer <florian.fischer@...q.space>,
        Ravi Bangoria <ravi.bangoria@....com>,
        Xing Zhengjun <zhengjun.xing@...ux.intel.com>,
        Rob Herring <robh@...nel.org>,
        Kang Minchul <tegongkang@...il.com>,
        linux-arm-kernel@...ts.infradead.org,
        linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org,
        Sandipan Das <sandipan.das@....com>,
        Jing Zhang <renyu.zj@...ux.alibaba.com>,
        linuxppc-dev@...ts.ozlabs.org, Kajol Jain <kjain@...ux.ibm.com>
Cc:     Stephane Eranian <eranian@...gle.com>,
        Perry Taylor <perry.taylor@...el.com>,
        Caleb Biggers <caleb.biggers@...el.com>,
        Ian Rogers <irogers@...gle.com>
Subject: [PATCH v4 01/12] perf jevents metric: Correct Function equality

rhs may not be defined, say for source_count, so add a guard.

Reviewed-by: Kajol Jain<kjain@...ux.ibm.com>
Signed-off-by: Ian Rogers <irogers@...gle.com>
---
 tools/perf/pmu-events/metric.py | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/tools/perf/pmu-events/metric.py b/tools/perf/pmu-events/metric.py
index 4797ed4fd817..2f2fd220e843 100644
--- a/tools/perf/pmu-events/metric.py
+++ b/tools/perf/pmu-events/metric.py
@@ -261,8 +261,10 @@ class Function(Expression):
 
   def Equals(self, other: Expression) -> bool:
     if isinstance(other, Function):
-      return self.fn == other.fn and self.lhs.Equals(
-          other.lhs) and self.rhs.Equals(other.rhs)
+      result = self.fn == other.fn and self.lhs.Equals(other.lhs)
+      if self.rhs:
+        result = result and self.rhs.Equals(other.rhs)
+      return result
     return False
 
 
-- 
2.39.1.456.gfc5497dd1b-goog

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