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regulator: qti-ocp-notifier: rate limit OCP and alarm notification logging

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Use pr_err_ratelimited() for regulator OCP and alarm notification
logging to avoid a system slowdown and watchdog timeout if a
continuous fault condition occurs that results in many repeated
notification events.

Change-Id: I13c3248696b4a2461bfe097a554b257a0fe63d4f
Signed-off-by: David Collins <quic_collinsd@quicinc.com>
This commit is contained in:
David Collins 2023-04-12 14:21:06 -07:00
parent ff476fbace
commit af3266829e
1 changed files with 3 additions and 3 deletions
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6
drivers/regulator/qti-ocp-notifier.c
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@ -1,5 +1,5 @@
// SPDX-License-Identifier: GPL-2.0-only
/* Copyright (c) 2022, Qualcomm Innovation Center, Inc. All rights reserved. */
/* Copyright (c) 2022-2023, Qualcomm Innovation Center, Inc. All rights reserved. */
#include <linux/err.h>
#include <linux/idr.h>
@ -107,12 +107,12 @@ static int ocp_notifier_log_event(struct ocp_notifier_dev *ocp_dev,
return ret;
if (name) {
pr_err("%s name=%s, ppid=0x%03X, mode=%u\n",
pr_err_ratelimited("%s name=%s, ppid=0x%03X, mode=%u\n",
label, name, entry->ppid, entry->mode_at_ocp);
ipc_log_string(log_info->ipc_log, "%s name=%s, ppid=0x%03X, mode=%u\n",
label, name, entry->ppid, entry->mode_at_ocp);
} else {
pr_err("%s ppid=0x%03X, mode=%u\n",
pr_err_ratelimited("%s ppid=0x%03X, mode=%u\n",
label, entry->ppid, entry->mode_at_ocp);
ipc_log_string(log_info->ipc_log, "%s ppid=0x%03X, mode=%u\n",
label, entry->ppid, entry->mode_at_ocp);