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x86/perf/amd: Remove tracing from perf_lopwr_cb()

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The perf_lopwr_cb() function is called from the idle routines; there
is no RCU there, we must not enter tracing.

Use __always_inline, noidle annotations and existing no-trace methods.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Tested-by: Tony Lindgren <tony@atomide.com>
Tested-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Frederic Weisbecker <frederic@kernel.org>
Link: https://lore.kernel.org/r/20230112195539.392862891@infradead.org
This commit is contained in:
Peter Zijlstra
2023-01-12 20:43:15 +01:00
committed by Ingo Molnar
parent 28c8e08842
commit 1f7c232ee0
2 changed files with 6 additions and 9 deletions
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2
arch/x86/include/asm/perf_event.h
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@@ -578,7 +578,7 @@ extern void perf_amd_brs_lopwr_cb(bool lopwr_in);
DECLARE_STATIC_CALL(perf_lopwr_cb, perf_amd_brs_lopwr_cb);
static inline void perf_lopwr_cb(bool lopwr_in)
static __always_inline void perf_lopwr_cb(bool lopwr_in)
{
static_call_mod(perf_lopwr_cb)(lopwr_in);
}