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[v10,08/11] governors/haltpoll: drop kvm_para_available() check

Message ID 20250218213337.377987-9-ankur.a.arora@oracle.com (mailing list archive)
State New
Headers show
Series arm64: support poll_idle() | expand

Commit Message

Ankur Arora Feb. 18, 2025, 9:33 p.m. UTC 
From: Joao Martins <joao.m.martins@oracle.com>

The haltpoll governor is selected either by the cpuidle-haltpoll
driver, or explicitly by the user.
In particular, it is never selected by default since it has the lowest
rating of all governors (menu=20, teo=19, ladder=10/25, haltpoll=9).

So, we can safely forgo the kvm_para_available() check. This also
allows cpuidle-haltpoll to be tested on baremetal.

Signed-off-by: Joao Martins <joao.m.martins@oracle.com>
Signed-off-by: Mihai Carabas <mihai.carabas@oracle.com>
Acked-by: Rafael J. Wysocki <rafael@kernel.org>
Signed-off-by: Ankur Arora <ankur.a.arora@oracle.com>
---
 drivers/cpuidle/governors/haltpoll.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)
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Patch

diff --git a/drivers/cpuidle/governors/haltpoll.c b/drivers/cpuidle/governors/haltpoll.c
index 663b7f164d20..c8752f793e61 100644
--- a/drivers/cpuidle/governors/haltpoll.c
+++ b/drivers/cpuidle/governors/haltpoll.c
@@ -18,7 +18,6 @@ 
 #include <linux/tick.h>
 #include <linux/sched.h>
 #include <linux/module.h>
-#include <linux/kvm_para.h>
 #include <trace/events/power.h>
 
 static unsigned int guest_halt_poll_ns __read_mostly = 200000;
@@ -148,10 +147,7 @@  static struct cpuidle_governor haltpoll_governor = {
 
 static int __init init_haltpoll(void)
 {
-	if (kvm_para_available())
-		return cpuidle_register_governor(&haltpoll_governor);
-
-	return 0;
+	return cpuidle_register_governor(&haltpoll_governor);
 }
 
 postcore_initcall(init_haltpoll);