[PATCH 0/4] PM: tracing: Don't compile in unused trace events

[Rafael J. Wysocki]

On Thu, Jun 12, 2025 at 4:52 PM Steven Rostedt <rostedt at goodmis.org> wrote:
>
>
> I have code that makes unsued events trigger a warning. I'm currently cleaning
> up the kernel to remove the majority of events that are defined but not used.
> When an event is defined, it can take up to 5K of text and meta data per
> event. An event should not be created if it is not being used.
>
> The powernv_throttle event is only used by the powernv code so I moved it to
> its own header file and it gets created when the powernv code is compiled in.
>
> For the other power events, I just added #ifdef around them with the configs
> that enable them.
>
> Steven Rostedt (4):
>       PM: cpufreq: powernv/tracing: Move powernv_throttle trace event
>       PM: tracing: Hide psci_domain_idle events under ARM_PSCI_CPUIDLE
>       PM: tracing: Hide device_pm_callback events under PM_SLEEP
>       PM: tracing: Hide power_domain_target event under ARCH_OMAP2PLUS
>
> ----
>  drivers/cpufreq/Makefile          |  1 +
>  drivers/cpufreq/powernv-cpufreq.c |  4 +++-
>  drivers/cpufreq/powernv-trace.h   | 44 +++++++++++++++++++++++++++++++++++++++
>  include/trace/events/power.h      | 28 ++++++-------------------
>  kernel/trace/power-traces.c       |  1 -
>  5 files changed, 54 insertions(+), 24 deletions(-)
>  create mode 100644 drivers/cpufreq/powernv-trace.h

For the series:

Acked-by: Rafael J. Wysocki <rafael at kernel.org>

Thanks!