From: Shunsuke Nakamura <nakamura.shun@fujitsu.com>
Date: Tue, 9 Nov 2021 08:58:30 +0000 (+0900)
Subject: libperf: Remove scaling process from perf_mmap__read_self()
X-Git-Tag: v6.1-rc5~2191^2~115
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=f2c4dcf191904d28d710290eea4a623710eee57c;p=platform%2Fkernel%2Flinux-starfive.git

libperf: Remove scaling process from perf_mmap__read_self()

Remove the scaling process from perf_mmap__read_self(), and unify the
counters that can be obtained from perf_evsel__read() to "no scaling".

Signed-off-by: Shunsuke Nakamura <nakamura.shun@fujitsu.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20211109085831.3770594-3-nakamura.shun@fujitsu.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---

diff --git a/tools/lib/perf/mmap.c b/tools/lib/perf/mmap.c
index c89dfa5..aaa4579 100644
--- a/tools/lib/perf/mmap.c
+++ b/tools/lib/perf/mmap.c
@@ -353,8 +353,6 @@ int perf_mmap__read_self(struct perf_mmap *map, struct perf_counts_values *count
 		count->ena += delta;
 		if (idx)
 			count->run += delta;
-
-		cnt = mul_u64_u64_div64(cnt, count->ena, count->run);
 	}
 
 	count->val = cnt;