[v3,4/4] cpuidle-haltpoll: do not set an owner to allow modunload
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Message ID 20190907234524.5577-5-joao.m.martins@oracle.com
State Mainlined, archived
Delegated to: Rafael Wysocki
Headers show
Series
  • cpuidle, haltpoll: governor switching on idle register
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Commit Message

Joao Martins Sept. 7, 2019, 11:45 p.m. UTC
cpuidle-haltpoll can be built as a module to allow optional late load.
Given we are setting @owner to THIS_MODULE, cpuidle will attempt to grab a
module reference every time a cpuidle_device is registered -- so
essentially all online cpus get a reference.

This prevents for the module to be unloaded later, which makes the
module_exit callback entirely unused. Thus remove the @owner and allow
module to be unloaded.

Fixes: fa86ee90eb11 ("add cpuidle-haltpoll driver")
Signed-off-by: Joao Martins <joao.m.martins@oracle.com>
---
v2:
 * Added Fixes tag
---
 drivers/cpuidle/cpuidle-haltpoll.c | 1 -
 1 file changed, 1 deletion(-)

Patch
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diff --git a/drivers/cpuidle/cpuidle-haltpoll.c b/drivers/cpuidle/cpuidle-haltpoll.c
index 7a0239ef717e..49a65c6fe91e 100644
--- a/drivers/cpuidle/cpuidle-haltpoll.c
+++ b/drivers/cpuidle/cpuidle-haltpoll.c
@@ -35,7 +35,6 @@  static int default_enter_idle(struct cpuidle_device *dev,
 static struct cpuidle_driver haltpoll_driver = {
 	.name = "haltpoll",
 	.governor = "haltpoll",
-	.owner = THIS_MODULE,
 	.states = {
 		{ /* entry 0 is for polling */ },
 		{