From f9a8818b3f2b7608ec1ef0e60b925f36f7fe72d6 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Tue, 1 Jun 2021 22:18:34 +0800
Subject: [PATCH] cpuidle: governor: Add new governors to cpuidle_governors
again
mainline inclusion
from mainline-5.1
commit 22782b3f9bb8ae21c710e2880db21bc729771e92
category: feature
bugzilla: https://bugzilla.openeuler.org/show_bug.cgi?id=34
CVE: NA
After commit ("cpuidle: Add cpuidle.governor= command
line parameter") new cpuidle governors are not added to the list
of available governors, so governor selection via sysfs doesn't
work as expected (even though it is rarely used anyway).
Fix that by making cpuidle_register_governor() add new governors to
cpuidle_governors again.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Yubo Miao <miaoyubo@huawei.com>
Signed-off-by: Xiangyou Xie <xiexiangyou@huawei.com>
Reviewed-by: Hailiang Zhang <zhang.zhanghailiang@huawei.com>
Reviewed-by: Hanjun Guo <guohanjun@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Jiajun Chen <chenjiajun8@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
---
drivers/cpuidle/governor.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/cpuidle/governor.c b/drivers/cpuidle/governor.c
index bb93e5cf6a4a..9fddf828a76f 100644
--- a/drivers/cpuidle/governor.c
+++ b/drivers/cpuidle/governor.c
@@ -89,6 +89,7 @@ int cpuidle_register_governor(struct cpuidle_governor *gov)
mutex_lock(&cpuidle_lock);
if (__cpuidle_find_governor(gov->name) == NULL) {
ret = 0;
+ list_add_tail(&gov->governor_list, &cpuidle_governors);
if (!cpuidle_curr_governor ||
!strncasecmp(param_governor, gov->name, CPUIDLE_NAME_LEN) ||
(cpuidle_curr_governor->rating < gov->rating &&
--
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