linux-kernel - Re: [PATCH 1/4] PM: cpufreq: powernv/tracing: Move powernv

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Message-ID: <20250613031649.lj5zdvw3wl6dtfft@vireshk-i7>
Date: Fri, 13 Jun 2025 08:46:49 +0530
From: Viresh Kumar <viresh.kumar@...aro.org>
To: Steven Rostedt <rostedt@...dmis.org>
Cc: linux-kernel@...r.kernel.org, linux-trace-kernel@...r.kernel.org,
	linux-pm@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
	Masami Hiramatsu <mhiramat@...nel.org>,
	Mark Rutland <mark.rutland@....com>,
	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	"Rafael J. Wysocki" <rafael@...nel.org>,
	Madhavan Srinivasan <maddy@...ux.ibm.com>,
	Michael Ellerman <mpe@...erman.id.au>
Subject: Re: [PATCH 1/4] PM: cpufreq: powernv/tracing: Move powernv_throttle
 trace event

On 12-06-25, 10:53, Steven Rostedt wrote:
> From: Steven Rostedt <rostedt@...dmis.org>
> 
> As the trace event powernv_throttle is only used by the powernv code, move
> it to a separate include file and have that code directly enable it.
> 
> Trace events can take up around 5K of memory when they are defined
> regardless if they are used or not. It wastes memory to have them defined
> in configurations where the tracepoint is not used.
> 
> Fixes: 0306e481d479a ("cpufreq: powernv/tracing: Add powernv_throttle tracepoint")
> Signed-off-by: Steven Rostedt (Google) <rostedt@...dmis.org>
> ---
>  drivers/cpufreq/Makefile          |  1 +
>  drivers/cpufreq/powernv-cpufreq.c |  4 ++-
>  drivers/cpufreq/powernv-trace.h   | 44 +++++++++++++++++++++++++++++++
>  include/trace/events/power.h      | 22 ----------------
>  kernel/trace/power-traces.c       |  1 -
>  5 files changed, 48 insertions(+), 24 deletions(-)
>  create mode 100644 drivers/cpufreq/powernv-trace.h

Acked-by: Viresh Kumar <viresh.kumar@...aro.org>

-- 
viresh