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

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Message-ID: <alpine.DEB.2.20.1704051241150.2382@nanos>
Date:   Wed, 5 Apr 2017 12:43:48 +0200 (CEST)
From:   Thomas Gleixner <tglx@...utronix.de>
To:     Dou Liyang <douly.fnst@...fujitsu.com>
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()

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/ ?

Why is this function not longer marked __init ?

Thanks,

	tglx