linux-kernel - Re: [PATCH 08/17] coresight: Remove unused stubs

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Date: Wed, 1 May 2024 12:06:28 +0100
From: Mike Leach <mike.leach@...aro.org>
To: James Clark <james.clark@....com>
Cc: linux-perf-users@...r.kernel.org, gankulkarni@...amperecomputing.com, 
	scclevenger@...amperecomputing.com, coresight@...ts.linaro.org, 
	suzuki.poulose@....com, 
	Alexander Shishkin <alexander.shishkin@...ux.intel.com>, 
	Maxime Coquelin <mcoquelin.stm32@...il.com>, Alexandre Torgue <alexandre.torgue@...s.st.com>, 
	Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...hat.com>, 
	Arnaldo Carvalho de Melo <acme@...nel.org>, Namhyung Kim <namhyung@...nel.org>, 
	Mark Rutland <mark.rutland@....com>, Jiri Olsa <jolsa@...nel.org>, Ian Rogers <irogers@...gle.com>, 
	Adrian Hunter <adrian.hunter@...el.com>, John Garry <john.g.garry@...cle.com>, 
	Will Deacon <will@...nel.org>, Leo Yan <leo.yan@...ux.dev>, 
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, 
	linux-stm32@...md-mailman.stormreply.com
Subject: Re: [PATCH 08/17] coresight: Remove unused stubs

On Mon, 29 Apr 2024 at 16:24, James Clark <james.clark@....com> wrote:
>
> This file is never included anywhere if CONFIG_CORESIGHT is not set so
> they are unused and aren't currently compile tested with any config so
> remove them.
>
> Signed-off-by: James Clark <james.clark@....com>
> ---
>  .../hwtracing/coresight/coresight-etm-perf.h   | 18 ------------------
>  1 file changed, 18 deletions(-)
>
> diff --git a/drivers/hwtracing/coresight/coresight-etm-perf.h b/drivers/hwtracing/coresight/coresight-etm-perf.h
> index bebbadee2ceb..744531158d6b 100644
> --- a/drivers/hwtracing/coresight/coresight-etm-perf.h
> +++ b/drivers/hwtracing/coresight/coresight-etm-perf.h
> @@ -62,7 +62,6 @@ struct etm_event_data {
>         struct list_head * __percpu *path;
>  };
>
> -#if IS_ENABLED(CONFIG_CORESIGHT)
>  int etm_perf_symlink(struct coresight_device *csdev, bool link);
>  int etm_perf_add_symlink_sink(struct coresight_device *csdev);
>  void etm_perf_del_symlink_sink(struct coresight_device *csdev);
> @@ -77,23 +76,6 @@ static inline void *etm_perf_sink_config(struct perf_output_handle *handle)
>  int etm_perf_add_symlink_cscfg(struct device *dev,
>                                struct cscfg_config_desc *config_desc);
>  void etm_perf_del_symlink_cscfg(struct cscfg_config_desc *config_desc);
> -#else
> -static inline int etm_perf_symlink(struct coresight_device *csdev, bool link)
> -{ return -EINVAL; }
> -int etm_perf_add_symlink_sink(struct coresight_device *csdev)
> -{ return -EINVAL; }
> -void etm_perf_del_symlink_sink(struct coresight_device *csdev) {}
> -static inline void *etm_perf_sink_config(struct perf_output_handle *handle)
> -{
> -       return NULL;
> -}
> -int etm_perf_add_symlink_cscfg(struct device *dev,
> -                              struct cscfg_config_desc *config_desc)
> -{ return -EINVAL; }
> -void etm_perf_del_symlink_cscfg(struct cscfg_config_desc *config_desc) {}
> -
> -#endif /* CONFIG_CORESIGHT */
> -
>  int __init etm_perf_init(void);
>  void etm_perf_exit(void);
>
> --
> 2.34.1
>
Reviewed-by: Mike Leach <mike.leach@...aro.org>

-- 
Mike Leach
Principal Engineer, ARM Ltd.
Manchester Design Centre. UK