lkml.org 
[lkml]   [2014]   [Jan]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: [PATCH v2 0/9] cpuidle: rework device state count handling
Date
On Friday, December 20, 2013 07:47:22 PM Bartlomiej Zolnierkiewicz wrote:
> Hi,
>
> Some cpuidle drivers assume that cpuidle core will handle cases where
> device->state_count is smaller than driver->state_count, unfortunately
> currently this is untrue (device->state_count is used only for handling
> cpuidle state sysfs entries and driver->state_count is used for all
> other cases) and will not be fixed in the future as device->state_count
> is planned to be removed [1].
>
> This patchset fixes such drivers (ARM EXYNOS cpuidle driver and ACPI
> cpuidle driver), removes superflous device->state_count initialization
> from drivers for which device->state_count equals driver->state_count
> (POWERPC pseries cpuidle driver and intel_idle driver) and finally
> removes state_count field from struct cpuidle_device.
>
> Additionaly (while at it) this patchset fixes C1E promotion disable
> quirk handling (in intel_idle driver) and converts cpuidle drivers code
> to use the common cpuidle_[un]register() routines (in POWERPC pseries
> cpuidle driver and intel_idle driver).
>
> [1] http://permalink.gmane.org/gmane.linux.power-management.general/36908
>
> Reference to v1:
> http://comments.gmane.org/gmane.linux.power-management.general/37390
>
> Changes since v1:
> - synced patch series with next-20131220
> - added ACKs from Daniel Lezcano

This series breaks boot on one of my test machines with intel_idle, so I'm
not sure how well it has been tested.

I've dropped it entirely for now. If I have the time, I will try to identify
the root cause of the failure, but that may not happen before the merge window.
Sorry about that.

Thanks!

--
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.


\
 
 \ /
  Last update: 2014-01-11 01:41    [W:0.098 / U:0.132 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site