linux-kernel - Re: [PATCH v6 1/7] perf vendor events arm64: Add common topdown L1 metrics

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Message-ID: <a66a81be-4695-7756-9ba1-c970d8f45b9c@linux.alibaba.com>
Date:   Tue, 10 Jan 2023 18:38:07 +0800
From:   Jing Zhang <renyu.zj@...ux.alibaba.com>
To:     John Garry <john.g.garry@...cle.com>
Cc:     Xing Zhengjun <zhengjun.xing@...ux.intel.com>,
        Will Deacon <will@...nel.org>,
        James Clark <james.clark@....com>,
        Mike Leach <mike.leach@...aro.org>,
        Leo Yan <leo.yan@...aro.org>,
        linux-arm-kernel@...ts.infradead.org,
        linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.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>,
        Andrew Kilroy <andrew.kilroy@....com>,
        Shuai Xue <xueshuai@...ux.alibaba.com>,
        Zhuo Song <zhuo.song@...ux.alibaba.com>
Subject: Re: [PATCH v6 1/7] perf vendor events arm64: Add common topdown L1
 metrics



在 2023/1/9 下午10:58, John Garry 写道:
> On 09/01/2023 02:53, Jing Zhang wrote:
>> I'll factor out the pmu_core__find function in tools/perf/arch/arm64/util/pmu.c:
>>
>> static const struct perf_pmu *pmu_core__find(void)
> 
> maybe name as pmu_core__find_same() or similar to indicate that we're only dealing with homogeneous cores
> 
>> {
>>     struct perf_pmu *pmu = NULL;
> 
> no need to init to NULL
> 
>>
>>     while ((pmu = perf_pmu__scan(pmu))) {
> 
> 1x superfluous level of ()
> 

Ok, will do, Thank you!