linux-kernel - Re: [PATCH] x86/fred: fix building without CONFIG

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Date: Mon, 19 Feb 2024 07:42:31 -0800
From: Sean Christopherson <seanjc@...gle.com>
To: Arnd Bergmann <arnd@...nel.org>
Cc: Xin Li <xin@...or.com>, "H. Peter Anvin" <hpa@...or.com>, Arnd Bergmann <arnd@...db.de>, 
	Andy Lutomirski <luto@...nel.org>, Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...hat.com>, 
	Borislav Petkov <bp@...en8.de>, Dave Hansen <dave.hansen@...ux.intel.com>, x86@...nel.org, 
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] x86/fred: fix building without CONFIG_KVM

On Fri, Feb 16, 2024, Arnd Bergmann wrote:
> From: Arnd Bergmann <arnd@...db.de>
> 
> Some constants are only defined if KVM is enabled:
> 
> arch/x86/entry/entry_fred.c:117:9: error: use of undeclared identifier 'POSTED_INTR_VECTOR'
>   117 |         SYSVEC(POSTED_INTR_VECTOR,              kvm_posted_intr_ipi),
>       |                ^
> arch/x86/entry/entry_fred.c:118:9: error: use of undeclared identifier 'POSTED_INTR_WAKEUP_VECTOR'
>   118 |         SYSVEC(POSTED_INTR_WAKEUP_VECTOR,       kvm_posted_intr_wakeup_ipi),
>       |                ^
> arch/x86/entry/entry_fred.c:119:9: error: use of undeclared identifier 'POSTED_INTR_NESTED_VECTOR'
>   119 |         SYSVEC(POSTED_INTR_NESTED_VECTOR,       kvm_posted_intr_nested_ipi),
>       |                ^
> 
> Hiding the references behind the same preprocessor conditional is
> probably the best fix here.
> 
> Fixes: 14619d912b65 ("x86/fred: FRED entry/exit and dispatch code")
> Signed-off-by: Arnd Bergmann <arnd@...db.de>
> ---

Late to the party :-)

https://lore.kernel.org/all/20240215133631.136538-1-max.kellermann@ionos.com