linux-kernel - Re: [PATCH 13/15] x86/cpu: Make CONFIG_X86

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Message-ID: <aA3numuKnE6lCLyn@gmail.com>
Date: Sun, 27 Apr 2025 10:15:54 +0200
From: Ingo Molnar <mingo@...nel.org>
To: Arnd Bergmann <arnd@...nel.org>
Cc: linux-kernel@...r.kernel.org, "Ahmed S . Darwish" <darwi@...utronix.de>,
	Andrew Cooper <andrew.cooper3@...rix.com>,
	Ard Biesheuvel <ardb@...nel.org>, Borislav Petkov <bp@...en8.de>,
	Dave Hansen <dave.hansen@...ux.intel.com>,
	"H. Peter Anvin" <hpa@...or.com>,
	John Ogness <john.ogness@...utronix.de>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [PATCH 13/15] x86/cpu: Make CONFIG_X86_CX8 unconditional


* Arnd Bergmann <arnd@...nel.org> wrote:

> On Fri, Apr 25, 2025, at 10:42, Ingo Molnar wrote:
> > @@ -257,7 +256,7 @@ config X86_MINIMUM_CPU_FAMILY
> >  	int
> >  	default "64" if X86_64
> >  	default "6" if X86_32 && (MPENTIUM4 || MPENTIUMM || MPENTIUMIII || 
> > MPENTIUMII || M686 || MVIAC3_2 || MVIAC7 || MEFFICEON || MATOM || MK7)
> > -	default "5" if X86_32 && X86_CX8
> > +	default "5" if X86_32
> >  	default "4"
> > 
> 
> I just noticed this one: the final 'default "4"' is no longer 
> possible here and can be removed. All the remaining CPUs report 
> family "5" or higher.

Right, I've applied the fix below and backmerged it into the series.

Thanks,

	Ingo

==========================>
 arch/x86/Kconfig.cpu | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/x86/Kconfig.cpu b/arch/x86/Kconfig.cpu
index 6f1e8cc8fe58..b3772d384fa0 100644
--- a/arch/x86/Kconfig.cpu
+++ b/arch/x86/Kconfig.cpu
@@ -257,7 +257,6 @@ config X86_MINIMUM_CPU_FAMILY
 	default "64" if X86_64
 	default "6" if X86_32 && (MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MVIAC3_2 || MVIAC7 || MEFFICEON || MATOM || MK7)
 	default "5" if X86_32
-	default "4"
 
 config X86_DEBUGCTLMSR
 	def_bool y