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cpuidle: lpm-levels: removing trace calls in idle

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LOCKDEP complains about a potential "suspicious RCU usage" in calling
trace calls in cpu-idle.

Change-Id: I59711a4a9bded246cac8b433bd1756269a17e153
Signed-off-by: Manoj Vishwanathan <mvishwan@codeaurora.org>
This commit is contained in:
Manoj Vishwanathan 2021-01-26 17:38:42 -08:00
commit c5e6208da8
1 changed files with 6 additions and 5 deletions
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11
drivers/cpuidle/lpm-levels.c
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@ -1,6 +1,6 @@
// SPDX-License-Identifier: GPL-2.0-only
/* Copyright (c) 2012-2020, The Linux Foundation. All rights reserved.
/* Copyright (c) 2012-2021, The Linux Foundation. All rights reserved.
* Copyright (C) 2006-2007 Adam Belay <abelay@novell.com>
* Copyright (C) 2009 Intel Corporation
*/
@ -31,6 +31,7 @@
#include <linux/sched/clock.h>
#include <linux/sched/idle.h>
#include <linux/sched/stat.h>
#include <linux/rcupdate.h>
#include <linux/psci.h>
#include <soc/qcom/pm.h>
#include <soc/qcom/lpm_levels.h>
@ -1445,8 +1446,8 @@ static void update_history(struct cpuidle_device *dev, int idx)
history->mode[history->hptr] = idx;
trace_cpu_pred_hist(history->mode[history->hptr],
history->resi[history->hptr], history->hptr, tmr);
RCU_NONIDLE(trace_cpu_pred_hist(history->mode[history->hptr],
history->resi[history->hptr], history->hptr, tmr));
if (history->nsamp < MAXSAMPLES)
history->nsamp++;
@ -1472,7 +1473,7 @@ static int lpm_cpuidle_enter(struct cpuidle_device *dev,
cpu_prepare(cpu, idx, true);
cluster_prepare(cpu->parent, cpumask, idx, true, start_time);
trace_cpu_idle_enter(idx);
RCU_NONIDLE(trace_cpu_idle_enter(idx));
lpm_stats_cpu_enter(idx, start_time);
if (need_resched() || is_IPI_pending(cpumask_of(dev->cpu)))
@ -1494,7 +1495,7 @@ exit:
cpu_unprepare(cpu, idx, true);
dev->last_residency = ktime_us_delta(ktime_get(), start);
update_history(dev, idx);
trace_cpu_idle_exit(idx, ret);
RCU_NONIDLE(trace_cpu_idle_exit(idx, ret));
if (lpm_prediction && cpu->lpm_prediction) {
histtimer_cancel();
clusttimer_cancel();