linux-kernel - [PATCH 5.15 109/247] perf c2c: Fix sorting in percent_rmt_hitm

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Date:   Mon, 13 Jun 2022 12:10:11 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Leo Yan <leo.yan@...aro.org>,
        Namhyung Kim <namhyung@...nel.org>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Ingo Molnar <mingo@...hat.com>, Jiri Olsa <jolsa@...nel.org>,
        Joe Mario <jmario@...hat.com>,
        Mark Rutland <mark.rutland@....com>,
        Peter Zijlstra <peterz@...radead.org>,
        Arnaldo Carvalho de Melo <acme@...hat.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.15 109/247] perf c2c: Fix sorting in percent_rmt_hitm_cmp()

From: Leo Yan <leo.yan@...aro.org>

[ Upstream commit b24192a17337abbf3f44aaa75e15df14a2d0016e ]

The function percent_rmt_hitm_cmp() wrongly uses local HITMs for
sorting remote HITMs.

Since this function is to sort cache lines for remote HITMs, this patch
changes to use 'rmt_hitm' field for correct sorting.

Fixes: 9cb3500afc0980c5 ("perf c2c report: Add hitm/store percent related sort keys")
Signed-off-by: Leo Yan <leo.yan@...aro.org>
Acked-by: Namhyung Kim <namhyung@...nel.org>
Cc: Alexander Shishkin <alexander.shishkin@...ux.intel.com>
Cc: Ingo Molnar <mingo@...hat.com>
Cc: Jiri Olsa <jolsa@...nel.org>
Cc: Joe Mario <jmario@...hat.com>
Cc: Mark Rutland <mark.rutland@....com>
Cc: Peter Zijlstra <peterz@...radead.org>
Link: https://lore.kernel.org/r/20220530084253.750190-1-leo.yan@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 tools/perf/builtin-c2c.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index 1fb0c507a551..e6f900c3accb 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -924,8 +924,8 @@ percent_rmt_hitm_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
 	double per_left;
 	double per_right;
 
-	per_left  = PERCENT(left, lcl_hitm);
-	per_right = PERCENT(right, lcl_hitm);
+	per_left  = PERCENT(left, rmt_hitm);
+	per_right = PERCENT(right, rmt_hitm);
 
 	return per_left - per_right;
 }
-- 
2.35.1