Re: [PATCH v4 2/2] ARM: cpuidle: make arm_cpuidle_suspend() a bit more efficient

From: Russell King - ARM Linux
Date: Thu Jul 14 2016 - 11:31:39 EST


On Fri, Jul 08, 2016 at 06:58:54PM +0800, Jisheng Zhang wrote:
> On Fri, 8 Jul 2016 12:50:12 +0200 Daniel Lezcano wrote:
>
> > On Fri, Jul 08, 2016 at 02:17:29PM +0800, Jisheng Zhang wrote:
> > > Dear Daniel,
> > >
> > > On Thu, 7 Jul 2016 15:46:28 +0200 Daniel Lezcano wrote:
> > >
> > > > On Wed, Jul 06, 2016 at 02:15:55PM +0800, Jisheng Zhang wrote:
> > > > > Currently, we check cpuidle_ops.suspend every time when entering a
> > > > > low-power idle state. But this check could be avoided in this hot path
> > > > > by moving it into arm_cpuidle_read_ops() to reduce arm_cpuidle_suspend
> > > > > overhead a bit.
> > > > >
> > > > > Signed-off-by: Jisheng Zhang <jszhang@xxxxxxxxxxx>
> > > > > ---
> > > >
> > > > Acked-by: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx>
> > >
> > > I'm not sure the upstream merging path this patch should follow, Per my
> > > understanding, I need to put it into Russell's PATCH system.
> >
> > Or alternatively through arm-soc
> >
>
> Got it. thanks.
>
> Dear Arnd, Olof,
>
> I have no pull request permission. what's your preference? Could you please
> advise?

... and because arm-soc people haven't responded, they've now ended up
in the patch system... So I've applied them to my tree in a separate
branch.

Thanks!

--
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