* Andrew F. Davis <afd@xxxxxx> [200220 10:23]:
> On 2/20/20 1:11 PM, Tony Lindgren wrote:
> > * Tony Lindgren <tony@xxxxxxxxxxx> [200220 17:58]:
> >> * Andrew F. Davis <afd@xxxxxx> [200220 17:39]:
> >>> If the machine has SMCCC then it will also have the
> >>> CONFIG_HAVE_ARM_SMCCC set and so nothing would change.
> >>
> >> Hmm yeah good point.
> >
> > So the patch below seems like the way to go then. Anybody have issues
> > with the patch below?
> >
> > Regards,
> >
> > Tony
> >
> > 8< -------------------------
> > diff --git a/include/linux/arm-smccc.h b/include/linux/arm-smccc.h
> > --- a/include/linux/arm-smccc.h
> > +++ b/include/linux/arm-smccc.h
> > @@ -121,6 +121,7 @@ struct arm_smccc_quirk {
> > } state;
> > };
> >
> > +#ifdef CONFIG_HAVE_ARM_SMCCC
> > /**
> > * __arm_smccc_smc() - make SMC calls
> > * @a0-a7: arguments passed in registers 0 to 7
> > @@ -137,6 +138,14 @@ asmlinkage void __arm_smccc_smc(unsigned long a0, unsigned long a1,
> > unsigned long a2, unsigned long a3, unsigned long a4,
> > unsigned long a5, unsigned long a6, unsigned long a7,
> > struct arm_smccc_res *res, struct arm_smccc_quirk *quirk);
> > +#else
> > +static inline void __arm_smccc_smc(unsigned long a0, unsigned long a1,
> > + unsigned long a2, unsigned long a3, unsigned long a4,
> > + unsigned long a5, unsigned long a6, unsigned long a7,
> > + struct arm_smccc_res *res, struct arm_smccc_quirk *quirk)
> > +{
>
>
> Maybe a warning? If you do not have SMC on your platform but are still
> making SMC calls then something is broken and it looks like it would
> fail silently here.
OK I'll add that and send out a proper patch.
Thanks,
Tony
