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

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Date:   Mon, 20 Nov 2017 17:06:35 +0000
From:   Sudeep Holla <sudeep.holla@....com>
To:     Jeremy Linton <jeremy.linton@....com>
Cc:     linux-acpi@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        hanjun.guo@...aro.org, lorenzo.pieralisi@....com,
        rjw@...ysocki.net, will.deacon@....com, catalin.marinas@....com,
        gregkh@...uxfoundation.org, viresh.kumar@...aro.org,
        mark.rutland@....com, linux-kernel@...r.kernel.org,
        linux-pm@...r.kernel.org, jhugo@...eaurora.org,
        wangxiongfeng2@...wei.com, Jonathan.Zhang@...ium.com,
        ahs3@...hat.com, Jayachandran.Nair@...ium.com,
        austinwc@...eaurora.org, lenb@...nel.org, robert.moore@...el.com,
        lv.zheng@...el.com, devel@...ica.org,
        Sudeep Holla <sudeep.holla@....com>
Subject: Re: [PATCH v4 3/9] arm64/acpi: Create arch specific cpu to acpi id
 helper

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@....com>
> ---
>  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.

--
Regards,
Sudeep