linux-kernel - Re: [PATCH] Added separate apic_id_valid() functions for selected apic drivers

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Date:	Thu, 15 Mar 2012 17:57:16 -0700
From:	Yinghai Lu <yinghai@...nel.org>
To:	Suresh Siddha <suresh.b.siddha@...el.com>
Cc:	Steffen Persvold <sp@...ascale.com>,
	Ingo Molnar <mingo@...hat.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>,
	Daniel J Blueman <daniel@...ascale-asia.com>,
	Jack Steiner <steiner@....com>, linux-kernel@...r.kernel.org,
	x86@...nel.org
Subject: Re: [PATCH] Added separate apic_id_valid() functions for selected
 apic drivers

On Thu, Mar 15, 2012 at 5:13 PM, Suresh Siddha
<suresh.b.siddha@...el.com> wrote:
> On Fri, 2012-03-16 at 01:07 +0100, Steffen Persvold wrote:
>> diff --git a/arch/x86/mm/srat.c b/arch/x86/mm/srat.c
>> index 1c1c4f4..7efd0c6 100644
>> --- a/arch/x86/mm/srat.c
>> +++ b/arch/x86/mm/srat.c
>> @@ -69,12 +69,6 @@ acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa)
>>       if ((pa->flags & ACPI_SRAT_CPU_ENABLED) == 0)
>>               return;
>>       pxm = pa->proximity_domain;
>> -     apic_id = pa->apic_id;
>> -     if (!cpu_has_x2apic && (apic_id >= 0xff)) {
>
> not sure why you removed this. Shouldn't this be replaced with
> apic->apic_id_valid() check?
>

yes,  it should change to apic->apic_id_valid().

in arch/x86/kernel/setup.c,  early_acpi_boot_init() calling will probe
and install right apic.

Yinghai
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