linux-kernel - [PATCH v3 2/6] cpufreq: amd-pstate: Only show shared memory solution message once

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Date:   Thu, 14 Apr 2022 11:47:57 -0500
From:   Mario Limonciello <mario.limonciello@....com>
To:     Rui Huang <ray.huang@....com>,
        "Rafael J . Wysocki" <rafael@...nel.org>,
        Viresh Kumar <viresh.kumar@...aro.org>
CC:     "open list:AMD PSTATE DRIVER" <linux-pm@...r.kernel.org>,
        Perry Yuan <Perry.Yuan@....com>,
        open list <linux-kernel@...r.kernel.org>,
        "Mario Limonciello" <mario.limonciello@....com>
Subject: [PATCH v3 2/6] cpufreq: amd-pstate: Only show shared memory solution message once

A message is emitted to let users know they can enable shared memory,
but it shows on all CPUs.

As this parameter is system-wide not CPU specific, it doesn't make
sense to show 8+ times.  Modify it to print only once.

Signed-off-by: Mario Limonciello <mario.limonciello@....com>
---
v2->v3:
 * New patch

 drivers/cpufreq/amd-pstate.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/cpufreq/amd-pstate.c b/drivers/cpufreq/amd-pstate.c
index 7be38bc6a673..ecd1fd5e5b5a 100644
--- a/drivers/cpufreq/amd-pstate.c
+++ b/drivers/cpufreq/amd-pstate.c
@@ -666,7 +666,7 @@ static int __init amd_pstate_init(void)
 		static_call_update(amd_pstate_init_perf, cppc_init_perf);
 		static_call_update(amd_pstate_update_perf, cppc_update_perf);
 	} else {
-		pr_info("This processor supports shared memory solution, you can enable it with amd_pstate.shared_mem=1\n");
+		pr_info_once("A processor on this system supports the shared memory solution, you can enable it with amd_pstate.shared_mem=1\n");
 		return -ENODEV;
 	}
 
-- 
2.34.1