linux-kernel - Re: [PATCH v1 2/9] perf auxtrace: Remove unused 'pmu' pointer from struct auxtrace

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Message-ID: <53c51dfc-9727-4e11-8846-6f37bc64744a@intel.com>
Date: Fri, 9 Aug 2024 11:02:16 +0300
From: Adrian Hunter <adrian.hunter@...el.com>
To: Leo Yan <leo.yan@....com>, Arnaldo Carvalho de Melo <acme@...nel.org>,
 Namhyung Kim <namhyung@...nel.org>, Ian Rogers <irogers@...gle.com>,
 James Clark <james.clark@...aro.org>,
 Suzuki K Poulose <suzuki.poulose@....com>, Mike Leach
 <mike.leach@...aro.org>, coresight@...ts.linaro.org,
 linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
 "Liang, Kan" <kan.liang@...ux.intel.com>
Subject: Re: [PATCH v1 2/9] perf auxtrace: Remove unused 'pmu' pointer from
 struct auxtrace_record

On 6/08/24 23:41, Leo Yan wrote:
> The 'pmu' pointer in the auxtrace_record structure is not used after
> support multiple AUX events, remove it.
> 
> Signed-off-by: Leo Yan <leo.yan@....com>

Reviewed-by: Adrian Hunter <adrian.hunter@...el.com>

> ---
>  tools/perf/arch/arm/util/cs-etm.c     | 1 -
>  tools/perf/arch/arm64/util/arm-spe.c  | 1 -
>  tools/perf/arch/arm64/util/hisi-ptt.c | 1 -
>  tools/perf/arch/x86/util/intel-bts.c  | 1 -
>  tools/perf/arch/x86/util/intel-pt.c   | 1 -
>  tools/perf/util/auxtrace.h            | 1 -
>  6 files changed, 6 deletions(-)
> 
> diff --git a/tools/perf/arch/arm/util/cs-etm.c b/tools/perf/arch/arm/util/cs-etm.c
> index da6231367993..96aeb7cdbee1 100644
> --- a/tools/perf/arch/arm/util/cs-etm.c
> +++ b/tools/perf/arch/arm/util/cs-etm.c
> @@ -888,7 +888,6 @@ struct auxtrace_record *cs_etm_record_init(int *err)
>  	}
>  
>  	ptr->cs_etm_pmu			= cs_etm_pmu;
> -	ptr->itr.pmu			= cs_etm_pmu;
>  	ptr->itr.parse_snapshot_options	= cs_etm_parse_snapshot_options;
>  	ptr->itr.recording_options	= cs_etm_recording_options;
>  	ptr->itr.info_priv_size		= cs_etm_info_priv_size;
> diff --git a/tools/perf/arch/arm64/util/arm-spe.c b/tools/perf/arch/arm64/util/arm-spe.c
> index d59f6ca499f2..2be99fdf997d 100644
> --- a/tools/perf/arch/arm64/util/arm-spe.c
> +++ b/tools/perf/arch/arm64/util/arm-spe.c
> @@ -514,7 +514,6 @@ struct auxtrace_record *arm_spe_recording_init(int *err,
>  	}
>  
>  	sper->arm_spe_pmu = arm_spe_pmu;
> -	sper->itr.pmu = arm_spe_pmu;
>  	sper->itr.snapshot_start = arm_spe_snapshot_start;
>  	sper->itr.snapshot_finish = arm_spe_snapshot_finish;
>  	sper->itr.find_snapshot = arm_spe_find_snapshot;
> diff --git a/tools/perf/arch/arm64/util/hisi-ptt.c b/tools/perf/arch/arm64/util/hisi-ptt.c
> index ba97c8a562a0..eac9739c87e6 100644
> --- a/tools/perf/arch/arm64/util/hisi-ptt.c
> +++ b/tools/perf/arch/arm64/util/hisi-ptt.c
> @@ -174,7 +174,6 @@ struct auxtrace_record *hisi_ptt_recording_init(int *err,
>  	}
>  
>  	pttr->hisi_ptt_pmu = hisi_ptt_pmu;
> -	pttr->itr.pmu = hisi_ptt_pmu;
>  	pttr->itr.recording_options = hisi_ptt_recording_options;
>  	pttr->itr.info_priv_size = hisi_ptt_info_priv_size;
>  	pttr->itr.info_fill = hisi_ptt_info_fill;
> diff --git a/tools/perf/arch/x86/util/intel-bts.c b/tools/perf/arch/x86/util/intel-bts.c
> index 34696f3d3d5d..85c8186300c8 100644
> --- a/tools/perf/arch/x86/util/intel-bts.c
> +++ b/tools/perf/arch/x86/util/intel-bts.c
> @@ -434,7 +434,6 @@ struct auxtrace_record *intel_bts_recording_init(int *err)
>  	}
>  
>  	btsr->intel_bts_pmu = intel_bts_pmu;
> -	btsr->itr.pmu = intel_bts_pmu;
>  	btsr->itr.recording_options = intel_bts_recording_options;
>  	btsr->itr.info_priv_size = intel_bts_info_priv_size;
>  	btsr->itr.info_fill = intel_bts_info_fill;
> diff --git a/tools/perf/arch/x86/util/intel-pt.c b/tools/perf/arch/x86/util/intel-pt.c
> index 4b710e875953..ea510a7486b1 100644
> --- a/tools/perf/arch/x86/util/intel-pt.c
> +++ b/tools/perf/arch/x86/util/intel-pt.c
> @@ -1197,7 +1197,6 @@ struct auxtrace_record *intel_pt_recording_init(int *err)
>  	}
>  
>  	ptr->intel_pt_pmu = intel_pt_pmu;
> -	ptr->itr.pmu = intel_pt_pmu;
>  	ptr->itr.recording_options = intel_pt_recording_options;
>  	ptr->itr.info_priv_size = intel_pt_info_priv_size;
>  	ptr->itr.info_fill = intel_pt_info_fill;
> diff --git a/tools/perf/util/auxtrace.h b/tools/perf/util/auxtrace.h
> index 8a6ec9565835..95304368103b 100644
> --- a/tools/perf/util/auxtrace.h
> +++ b/tools/perf/util/auxtrace.h
> @@ -411,7 +411,6 @@ struct auxtrace_record {
>  	int (*read_finish)(struct auxtrace_record *itr, int idx);
>  	unsigned int alignment;
>  	unsigned int default_aux_sample_size;
> -	struct perf_pmu *pmu;
>  	struct evlist *evlist;
>  };
>