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| author | Marcelo Tosatti <mtosatti@redhat.com> | 2019-12-06 13:07:41 -0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2019-12-09 10:37:16 +0100 |
| commit | 36fcb4292473cb9c9ce7706d038bcf0eda5cabeb (patch) | |
| tree | a7ef4aa9d5753e0abf72be184666790e424cf905 /drivers/cpuidle | |
| parent | e42617b825f8073569da76dc4510bfa019b1c35a (diff) | |
| download | linux-36fcb4292473cb9c9ce7706d038bcf0eda5cabeb.tar.bz2 | |
cpuidle: use first valid target residency as poll time
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>
Diffstat (limited to 'drivers/cpuidle')
| -rw-r--r-- | drivers/cpuidle/cpuidle.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/cpuidle/cpuidle.c b/drivers/cpuidle/cpuidle.c index 0005be5ea2b4..15877b431143 100644 --- a/drivers/cpuidle/cpuidle.c +++ b/drivers/cpuidle/cpuidle.c @@ -382,6 +382,7 @@ u64 cpuidle_poll_time(struct cpuidle_driver *drv, continue; limit_ns = (u64)drv->states[i].target_residency_ns; + break; } dev->poll_limit_ns = limit_ns; |