linux-kernel - Re: [RFC PATCH 1/6] x86/apic: Replace init_bsp_APIC() with apic_virture_wire_mode

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Date:   Thu, 6 Apr 2017 09:32:28 +0800
From:   Dou Liyang <douly.fnst@...fujitsu.com>
To:     Thomas Gleixner <tglx@...utronix.de>
CC:     <x86@...nel.org>, <linux-kernel@...r.kernel.org>,
        <mingo@...nel.org>, <ebiederm@...ssion.com>, <bhe@...hat.com>,
        <hpa@...or.com>, <izumi.taku@...fujitsu.com>
Subject: Re: [RFC PATCH 1/6] x86/apic: Replace init_bsp_APIC() with
 apic_virture_wire_mode_setup()

Hi Thomas,

Thank you very much!

At 04/05/2017 06:43 PM, Thomas Gleixner wrote:
> On Wed, 29 Mar 2017, Dou Liyang wrote:
>
>> The init_bsp_APIC() setups the virtual wire mode through the local
>> APIC.
>>
>> The function name is unsuitable which might imply that the BSP's
>> APIC will be initialized here, actually, where it will be done is
>> almost at the end of start_kernel(). And the CONFIG X86_64 is also
>> imply the X86_LOCAL_APIC is y.
>
> Correct, but X86_32 can have X86_LOCAL_APIC=n. And by removing the ifdefs
> you break that.
>
>>  /*
>> - * An initial setup of the virtual wire mode.
>> + * Setup the through-local-APIC virtual wire mode.
>>   */
>> -void __init init_bsp_APIC(void)
>> +void apic_virture_wire_mode_setup(void)
>
> s/virture/virtual/ ?

Yes, It is.

>
> Why is this function not longer marked __init ?
>

Oops. The __init is necessary. I will modify it.

Thanks,
	Liyang.


> Thanks,
>
> 	tglx
>
>
>