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Re: [XEN PATCH v1 5/7] x86/MCE: guard {intel/amd}_mcheck_init() calls
- To: Sergiy Kibrik <Sergiy_Kibrik@xxxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Mon, 29 Apr 2024 17:45:23 +0200
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- Cc: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx
- Delivery-date: Mon, 29 Apr 2024 15:45:29 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 23.04.2024 10:56, Sergiy Kibrik wrote:
> --- a/xen/arch/x86/cpu/mcheck/mce.c
> +++ b/xen/arch/x86/cpu/mcheck/mce.c
> @@ -761,7 +761,8 @@ void mcheck_init(struct cpuinfo_x86 *c, bool bsp)
> {
> case X86_VENDOR_AMD:
> case X86_VENDOR_HYGON:
> - inited = amd_mcheck_init(c, bsp);
> + inited = IS_ENABLED(CONFIG_AMD) ? amd_mcheck_init(c, bsp) :
> + mcheck_unset;
> break;
>
> case X86_VENDOR_INTEL:
> @@ -769,7 +770,8 @@ void mcheck_init(struct cpuinfo_x86 *c, bool bsp)
> {
> case 6:
> case 15:
> - inited = intel_mcheck_init(c, bsp);
> + inited = IS_ENABLED(CONFIG_INTEL) ? intel_mcheck_init(c, bsp) :
> + mcheck_unset;
> break;
> }
> break;
Same question as on an earlier patch: Why set a value different from
what "default:" below here does (really: keeps)? And why not arrange to
have that "default:" take care of what's build-disabled?
Jan
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