linux-kernel - Re: [RFC] clk: Remove cached cores in parent map during unregister

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Message-ID: <20190917153419.GA258455@google.com>
Date:   Tue, 17 Sep 2019 09:34:19 -0600
From:   Raul Rangel <rrangel@...omium.org>
To:     Stephen Boyd <sboyd@...nel.org>
Cc:     Bjorn Andersson <bjorn.andersson@...aro.org>,
        Michael Turquette <mturquette@...libre.com>,
        Sai Prakash Ranjan <saiprakash.ranjan@...eaurora.org>,
        linux-clk@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, Rob Clark <robclark@...il.com>,
        Sean Paul <seanpaul@...omium.org>
Subject: Re: [RFC] clk: Remove cached cores in parent map during unregister

On Mon, Aug 26, 2019 at 02:24:14PM -0700, Stephen Boyd wrote:
> > 
> > ---8<---
> > diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
> > index c0990703ce54..f42a803fb11a 100644
> > --- a/drivers/clk/clk.c
> > +++ b/drivers/clk/clk.c
> > @@ -3737,6 +3737,37 @@ static const struct clk_ops clk_nodrv_ops = {
> >         .set_parent     = clk_nodrv_set_parent,
> >  };
> >  
> > +static void clk_core_evict_parent_cache_subtree(struct clk_core *root,
> > +                                               struct clk_core *target)
> > +{
> > +       int i;
> > +       struct clk_core *child;
> > +
> > +       if (!root)
> > +               return;
> 
> I don't think we need this part. Child is always a valid pointer.
> 

Bjorn or Saiprakash
Are there any plans to send out Stephen's proposed patch?

Thanks