From: Adrián Larumbe <adrian.larumbe@collabora.com>
Date: Sat, 20 May 2023 17:00:35 +0000 (+0100)
Subject: OPP: rate-limit debug messages when no change in OPP is required
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=9e28f7a74581204807f20ae46568939038e327aa;p=linux.git

OPP: rate-limit debug messages when no change in OPP is required

Otherwise, when enabling a debug build and dynamic debug in the kernel, it
quickly floods the kernel ring buffer and makes debugging of other
subsystems almost impossible, unless manually disabled.

Signed-off-by: Adrián Larumbe <adrian.larumbe@collabora.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
---

diff --git a/drivers/opp/core.c b/drivers/opp/core.c
index 954c94865cf56..85cbc8de407c6 100644
--- a/drivers/opp/core.c
+++ b/drivers/opp/core.c
@@ -1091,7 +1091,7 @@ static int _set_opp(struct device *dev, struct opp_table *opp_table,
 
 	/* Return early if nothing to do */
 	if (!forced && old_opp == opp && opp_table->enabled) {
-		dev_dbg(dev, "%s: OPPs are same, nothing to do\n", __func__);
+		dev_dbg_ratelimited(dev, "%s: OPPs are same, nothing to do\n", __func__);
 		return 0;
 	}