linux-kernel - [PATCH 12/12] cpufreq/amd-pstate: Remove the unncecessary driver_lock in amd_pstate_update

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Message-ID: <20250205112523.201101-13-dhananjay.ugwekar@amd.com>
Date: Wed, 5 Feb 2025 11:25:23 +0000
From: Dhananjay Ugwekar <dhananjay.ugwekar@....com>
To: <gautham.shenoy@....com>, <mario.limonciello@....com>,
	<rafael@...nel.org>, <viresh.kumar@...aro.org>
CC: <linux-kernel@...r.kernel.org>, <linux-pm@...r.kernel.org>, "Dhananjay
 Ugwekar" <dhananjay.ugwekar@....com>
Subject: [PATCH 12/12] cpufreq/amd-pstate: Remove the unncecessary driver_lock in amd_pstate_update_limits

There is no need to take a driver wide lock while updating the
highest_perf value in the percpu cpudata struct. Hence remove it.

Signed-off-by: Dhananjay Ugwekar <dhananjay.ugwekar@....com>
---
 drivers/cpufreq/amd-pstate.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/cpufreq/amd-pstate.c b/drivers/cpufreq/amd-pstate.c
index ee7e3f0a4c0a..08ae48076812 100644
--- a/drivers/cpufreq/amd-pstate.c
+++ b/drivers/cpufreq/amd-pstate.c
@@ -832,8 +832,6 @@ static void amd_pstate_update_limits(unsigned int cpu)
 	if (!policy)
 		return;
 
-	guard(mutex)(&amd_pstate_driver_lock);
-
 	if (amd_get_highest_perf(cpu, &cur_high))
 		return;
 
-- 
2.34.1