linux-kernel - RE: [RFC PATCH v12 03/11] psci: export smccc conduit get helper.

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Date:   Wed, 27 May 2020 01:18:38 +0000
From:   Jianyong Wu <Jianyong.Wu@....com>
To:     Sudeep Holla <Sudeep.Holla@....com>
CC:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "yangbo.lu@....com" <yangbo.lu@....com>,
        "john.stultz@...aro.org" <john.stultz@...aro.org>,
        "tglx@...utronix.de" <tglx@...utronix.de>,
        "pbonzini@...hat.com" <pbonzini@...hat.com>,
        "sean.j.christopherson@...el.com" <sean.j.christopherson@...el.com>,
        "maz@...nel.org" <maz@...nel.org>,
        "richardcochran@...il.com" <richardcochran@...il.com>,
        Mark Rutland <Mark.Rutland@....com>,
        "will@...nel.org" <will@...nel.org>,
        Suzuki Poulose <Suzuki.Poulose@....com>,
        Steven Price <Steven.Price@....com>,
        Justin He <Justin.He@....com>, Wei Chen <Wei.Chen@....com>,
        "kvm@...r.kernel.org" <kvm@...r.kernel.org>,
        Steve Capper <Steve.Capper@....com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Kaly Xin <Kaly.Xin@....com>, nd <nd@....com>,
        Sudeep Holla <Sudeep.Holla@....com>,
        "kvmarm@...ts.cs.columbia.edu" <kvmarm@...ts.cs.columbia.edu>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>
Subject: RE: [RFC PATCH v12 03/11] psci: export smccc conduit get helper.

Hi Sudeep,

> -----Original Message-----
> From: Sudeep Holla <sudeep.holla@....com>
> Sent: Tuesday, May 26, 2020 6:10 PM
> To: Jianyong Wu <Jianyong.Wu@....com>
> Cc: netdev@...r.kernel.org; yangbo.lu@....com; john.stultz@...aro.org;
> tglx@...utronix.de; pbonzini@...hat.com; sean.j.christopherson@...el.com;
> maz@...nel.org; richardcochran@...il.com; Mark Rutland
> <Mark.Rutland@....com>; will@...nel.org; Suzuki Poulose
> <Suzuki.Poulose@....com>; Steven Price <Steven.Price@....com>; Justin
> He <Justin.He@....com>; Wei Chen <Wei.Chen@....com>;
> kvm@...r.kernel.org; Steve Capper <Steve.Capper@....com>; linux-
> kernel@...r.kernel.org; Kaly Xin <Kaly.Xin@....com>; nd <nd@....com>;
> Sudeep Holla <Sudeep.Holla@....com>; kvmarm@...ts.cs.columbia.edu;
> linux-arm-kernel@...ts.infradead.org
> Subject: Re: [RFC PATCH v12 03/11] psci: export smccc conduit get helper.
> 
> On Mon, May 25, 2020 at 01:37:56AM +0000, Jianyong Wu wrote:
> > Hi Sudeep,
> >
> > > -----Original Message-----
> > > From: Sudeep Holla <sudeep.holla@....com>
> > > Sent: Friday, May 22, 2020 9:12 PM
> > > To: Jianyong Wu <Jianyong.Wu@....com>
> > > Cc: netdev@...r.kernel.org; yangbo.lu@....com;
> > > john.stultz@...aro.org; tglx@...utronix.de; pbonzini@...hat.com;
> > > sean.j.christopherson@...el.com; maz@...nel.org;
> > > richardcochran@...il.com; Mark Rutland <Mark.Rutland@....com>;
> > > will@...nel.org; Suzuki Poulose <Suzuki.Poulose@....com>; Steven
> > > Price <Steven.Price@....com>; Justin He <Justin.He@....com>; Wei
> > > Chen <Wei.Chen@....com>; kvm@...r.kernel.org; Steve Capper
> > > <Steve.Capper@....com>; linux- kernel@...r.kernel.org; Kaly Xin
> > > <Kaly.Xin@....com>; nd <nd@....com>; Sudeep Holla
> > > <Sudeep.Holla@....com>; kvmarm@...ts.cs.columbia.edu;
> > > linux-arm-kernel@...ts.infradead.org
> > > Subject: Re: [RFC PATCH v12 03/11] psci: export smccc conduit get helper.
> > >
> > > On Fri, May 22, 2020 at 04:37:16PM +0800, Jianyong Wu wrote:
> > > > Export arm_smccc_1_1_get_conduit then modules can use smccc
> helper
> > > > which adopts it.
> > > >
> > > > Acked-by: Mark Rutland <mark.rutland@....com>
> > > > Signed-off-by: Jianyong Wu <jianyong.wu@....com>
> > > > ---
> > > >  drivers/firmware/psci/psci.c | 1 +
> > > >  1 file changed, 1 insertion(+)
> > > >
> > > > diff --git a/drivers/firmware/psci/psci.c
> > > > b/drivers/firmware/psci/psci.c index 2937d44b5df4..fd3c88f21b6a
> > > > 100644
> > > > --- a/drivers/firmware/psci/psci.c
> > > > +++ b/drivers/firmware/psci/psci.c
> > > > @@ -64,6 +64,7 @@ enum arm_smccc_conduit
> > > > arm_smccc_1_1_get_conduit(void)
> > > >
> > > >  	return psci_ops.conduit;
> > > >  }
> > > > +EXPORT_SYMBOL(arm_smccc_1_1_get_conduit);
> > > >
> > >
> > > I have moved this into drivers/firmware/smccc/smccc.c [1] Please
> > > update this accordingly.
> >
> > Ok, I will remove this patch next version.
> 
> You may need it still, just that this patch won't apply as the function is moved
> to a new file.
> 
Yeah, Thanks for remainder!

Thanks
Jianyong 

> --
> Regards,
> Sudeep