Re: [PATCH 1/2] perf/tracing: Use stage6 of tracing to not duplicate macros

From: Peter Zijlstra
Date: Wed Jan 25 2023 - 04:17:08 EST


On Tue, Jan 24, 2023 at 03:22:39PM -0500, Steven Rostedt wrote:
> From: "Steven Rostedt (Google)" <rostedt@xxxxxxxxxxx>
>
> The perf events are created by the same macro magic as tracefs trace
> events are. But to hook into perf, it has its own code. It duplicates many
> of the same macros as the tracefs macros and this is an issue because it
> misses bug fixes as well as any new enhancements that come with the other
> trace macros.
>
> As the trace macros have been put into their own staging files, have perf
> take advantage of this and use the tracefs stage 6 macros that the "fast
> assign" portion of the trace event macro uses.
>
> Link: https://lore.kernel.org/lkml/1671181385-5719-1-git-send-email-quic_linyyuan@xxxxxxxxxxx/
>
> Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx>
> Cc: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
> Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
> Cc: Ingo Molnar <mingo@xxxxxxx>
> Reported-by: Linyu Yuan <quic_linyyuan@xxxxxxxxxxx>
> Signed-off-by: Steven Rostedt (Google) <rostedt@xxxxxxxxxxx>

Acked-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>