From mboxrd@z Thu Jan  1 00:00:00 1970
From: Keir Fraser <keir.xen@gmail.com>
Subject: Re: [PATCH] x86/ACPI: fix error indication from
 acpi_parse_madt_lapic_entries()
Date: Tue, 18 Sep 2012 16:38:44 +0100
Message-ID: <CC7E5414.3F132%keir.xen@gmail.com>
References: <5058AD19020000780009C079@nat28.tlf.novell.com>
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To: Jan Beulich <JBeulich@suse.com>, xen-devel <xen-devel@lists.xen.org>
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On 18/09/2012 16:19, "Jan Beulich" <JBeulich@suse.com> wrote:

> If the legacy APIC invocation of acpi_table_parse_madt() succeeds but
> the x2APIC counterpart fails, this is regarded as failure by the
> function, yet its return value would indicate success.
> 
> Signed-off-by: Jan Beulich <jbeulich@suse.com>

Acked-by: Keir Fraser <keir@xen.org>

> --- a/xen/arch/x86/acpi/boot.c
> +++ b/xen/arch/x86/acpi/boot.c
> @@ -452,7 +452,7 @@ static int __init acpi_parse_madt_lapic_
> } else if (count < 0 || x2count < 0) {
> printk(KERN_ERR PREFIX "Error parsing LAPIC entry\n");
> /* TBD: Cleanup to allow fallback to MPS */
> -  return count;
> +  return count < 0 ? count : x2count;
> }
>  
> count =
> @@ -464,7 +464,7 @@ static int __init acpi_parse_madt_lapic_
> if (count < 0 || x2count < 0) {
> printk(KERN_ERR PREFIX "Error parsing LAPIC NMI entry\n");
> /* TBD: Cleanup to allow fallback to MPS */
> -  return count;
> +  return count < 0 ? count : x2count;
> }
> return 0;
>  }
> 
> 
> 
> 
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