From: Marcelo Tosatti <mtosatti@redhat.com>
Subject: cpuidle: use first valid target residency as poll time
References: jsc#SLE-11312
Patch-Mainline: v5.5-rc2
Git-commit: 36fcb4292473cb9c9ce7706d038bcf0eda5cabeb
Commit 259231a04561 ("cpuidle: add poll_limit_ns to cpuidle_device
structure") changed, by mistake, the target residency from the first
available sleep state to the last available sleep state (which should
be longer).
This might cause excessive polling.
Fixes: 259231a04561 ("cpuidle: add poll_limit_ns to cpuidle_device structure")
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Cc: 5.4+ <stable@vger.kernel.org> # 5.4+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: <trenn@suse.com>
---
drivers/cpuidle/cpuidle.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/cpuidle/cpuidle.c
+++ b/drivers/cpuidle/cpuidle.c
@@ -384,6 +384,7 @@
continue;
limit_ns = (u64)drv->states[i].target_residency * NSEC_PER_USEC;
+ break;
}
dev->poll_limit_ns = limit_ns;