Re: [PATCH v4 3/9] arm64/acpi: Create arch specific cpu to acpi id helper

[Jeremy Linton]

Hi,

On 11/20/2017 11:06 AM, Sudeep Holla wrote:
> On Thu, Nov 09, 2017 at 03:03:05PM -0600, Jeremy Linton wrote:
> > Its helpful to be able to lookup the acpi_processor_id
> > associated with a logical cpu. Provide an arm64
> > helper to do this.
> >
> > Signed-off-by: Jeremy Linton <jeremy.linton@xxxxxxx>
> > ---
> >   arch/arm64/include/asm/acpi.h | 4 ++++
> >   1 file changed, 4 insertions(+)
> >
> > diff --git a/arch/arm64/include/asm/acpi.h b/arch/arm64/include/asm/acpi.h
> > index 59cca1d6ec54..408e7989d3a2 100644
> > --- a/arch/arm64/include/asm/acpi.h
> > +++ b/arch/arm64/include/asm/acpi.h
> > @@ -86,6 +86,10 @@ static inline bool acpi_has_cpu_in_madt(void)
> >   }
> >   
> >   struct acpi_madt_generic_interrupt *acpi_cpu_get_madt_gicc(int cpu);
> > +static inline u32 get_acpi_id_for_cpu(unsigned int cpu)
> > +{
> > +	return	acpi_cpu_get_madt_gicc(cpu)->uid;
> > +}
>
> If I followed the series correctly, this function is used in 2/9 already.
> So this needs to be moved down in the series to avoid build failure during
> bisection.

I don't believe there is a bisection failure here because the code using 
this routine is not yet being compiled until the 4/9.