linux-kernel - Re: [PATCH v3 1/2] cpufreq: Replace trace_cpu_frequency with trace_policy

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Message-ID: <20251229165212.5bd8508d@gandalf.local.home>
Date: Mon, 29 Dec 2025 16:52:12 -0500
From: Steven Rostedt <rostedt@...dmis.org>
To: "Rafael J. Wysocki" <rafael@...nel.org>
Cc: Christian Loehle <christian.loehle@....com>, Samuel Wu
 <wusamuel@...gle.com>, Huang Rui <ray.huang@....com>, "Gautham R. Shenoy"
 <gautham.shenoy@....com>, Mario Limonciello <mario.limonciello@....com>,
 Perry Yuan <perry.yuan@....com>, Jonathan Corbet <corbet@....net>, Viresh
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 Mathieu Desnoyers <mathieu.desnoyers@...icios.com>, Srinivas Pandruvada
 <srinivas.pandruvada@...ux.intel.com>, Len Brown <lenb@...nel.org>, Alexei
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 <irogers@...gle.com>, Adrian Hunter <adrian.hunter@...el.com>, James Clark
 <james.clark@...aro.org>, kernel-team@...roid.com,
 linux-pm@...r.kernel.org, linux-doc@...r.kernel.org,
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Subject: Re: [PATCH v3 1/2] cpufreq: Replace trace_cpu_frequency with
 trace_policy_frequency

On Thu, 4 Dec 2025 18:24:57 +0100
"Rafael J. Wysocki" <rafael@...nel.org> wrote:

> My concern is that the patch effectively removes one trace point
> (cpu_frequency) and adds another one with a different format
> (policy_frequency), updates one utility in the kernel tree and expects
> everyone else to somehow know that they should switch over.
> 
> I know about at least several people who have their own scripts using
> this tracepoint though.

Hi Rafael,

Can you reach out to those that have scripts that use this trace event to
see if it can be changed?

Thanks,

-- Steve