From: Marcelo Tosatti <mtosatti@redhat.com> mainline inclusion from mainline-5.5 commit 36fcb4292473cb9c9ce7706d038bcf0eda5cabeb category: feature bugzilla: https://bugzilla.openeuler.org/show_bug.cgi?id=34 CVE: NA 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> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Xiangyou Xie <xiexiangyou@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/cpuidle.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/cpuidle/cpuidle.c b/drivers/cpuidle/cpuidle.c index b21f39bc63754..035ce130dceda 100644 --- a/drivers/cpuidle/cpuidle.c +++ b/drivers/cpuidle/cpuidle.c @@ -343,6 +343,7 @@ u64 cpuidle_poll_time(struct cpuidle_driver *drv, limit_ns = (u64)drv->states[i].target_residency * NSEC_PER_USEC; + break; } dev->poll_limit_ns = limit_ns; -- 2.25.1