linux-kernel - Re: [PATCH] xen: expose enable_IO

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Date:	Wed, 11 Feb 2009 00:36:38 -0800
From:	Yinghai Lu <yinghai@...nel.org>
To:	Ian Campbell <ian.campbell@...rix.com>
Cc:	Ingo Molnar <mingo@...e.hu>, x86@...nel.org,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] xen: expose enable_IO_APIC for 32-bit

On Mon, Feb 9, 2009 at 12:05 PM, Ian Campbell <ian.campbell@...rix.com> wrote:
> enable_IO_APIC() is defined for both 32- and 64-bit x86, so it should
> be declared for both.
>
> Signed-off-by: Ian Campbell <ian.campbell@...rix.com>
> Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@...rix.com>
> ---
>  arch/x86/include/asm/hw_irq.h |    2 --
>  1 files changed, 0 insertions(+), 2 deletions(-)
>
> diff --git a/arch/x86/include/asm/hw_irq.h b/arch/x86/include/asm/hw_irq.h
> index 1b82781..370e1c8 100644
> --- a/arch/x86/include/asm/hw_irq.h
> +++ b/arch/x86/include/asm/hw_irq.h
> @@ -65,9 +65,7 @@ extern void disable_IO_APIC(void);
>  extern int IO_APIC_get_PCI_irq_vector(int bus, int slot, int fn);
>  extern void setup_ioapic_dest(void);
>
> -#ifdef CONFIG_X86_64
>  extern void enable_IO_APIC(void);
> -#endif
>
>  /* Statistics */
>  extern atomic_t irq_err_count;
> --
> 1.6.0.6
>
> --

wonder if we should call enable_IO_APIC in 32bit like 64bit...
should be ok.

YH
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