On Sunday, August 14, 2011, Jean Pihet wrote:
> Rafael, Mark,
>
> On Sat, Aug 13, 2011 at 10:58 PM, Rafael J. Wysocki <rjw@xxxxxxx> wrote:
> > On Saturday, August 13, 2011, mark gross wrote:
> >> On Thu, Aug 11, 2011 at 05:06:41PM +0200, jean.pihet@xxxxxxxxxxxxxx wrote:
> >> > From: Jean Pihet <j-pihet@xxxxxx>
> >> >
> >> > In preparation for the per-device constratins support, re-organize
> >> > the data strctures:
> >> > - add a struct pm_qos_constraints which contains the constraints
> >> > related data
> >> > - update struct pm_qos_object contents to the PM QoS internal object
> >> > data. Add a pointer to struct pm_qos_constraints
> >> > - update the internal code to use the new data structs.
> >> >
> >> > Signed-off-by: Jean Pihet <j-pihet@xxxxxx>
> >> > ---
> >> > include/linux/pm_qos.h | 19 ++++++++++
> >> > kernel/power/qos.c | 90 ++++++++++++++++++++++-------------------------
> >> > 2 files changed, 61 insertions(+), 48 deletions(-)
> >> >
> >> > diff --git a/include/linux/pm_qos.h b/include/linux/pm_qos.h
> >> > index 6b0968f..9772311 100644
> >> > --- a/include/linux/pm_qos.h
> >> > +++ b/include/linux/pm_qos.h
> >> > @@ -25,6 +25,25 @@ struct pm_qos_request {
> >> > int pm_qos_class;
> >> > };
> >> >
> >> > +enum pm_qos_type {
> >> > + PM_QOS_UNITIALIZED,
> >> what is this for?
> >
> > I seem to remember discussing that previously, but I can't recall what
> > it's for. Jean?
> >
>
> Sorry it is a left over from the previous version, it has been used to
> detect non initialized data structs.
> It is still used to detect an error in pm_qos_get_value and so by its
> callers pm_qos_update_target and pm_qos_power_read. I have to admit
> the usefulness is quite limited.
>
> Is the removal of PM_QOS_UNITIALIZED needed? I would say no.
I agree.
Thanks,
Rafael
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