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Date:   Wed, 6 May 2020 15:21:29 -0700
From:   Dave Hansen <dave.hansen@...el.com>
To:     Babu Moger <babu.moger@....com>, corbet@....net,
        tglx@...utronix.de, mingo@...hat.com, bp@...en8.de, hpa@...or.com,
        pbonzini@...hat.com, sean.j.christopherson@...el.com
Cc:     x86@...nel.org, vkuznets@...hat.com, wanpengli@...cent.com,
        jmattson@...gle.com, joro@...tes.org, dave.hansen@...ux.intel.com,
        luto@...nel.org, peterz@...radead.org, mchehab+samsung@...nel.org,
        changbin.du@...el.com, namit@...are.com, bigeasy@...utronix.de,
        yang.shi@...ux.alibaba.com, asteinhauser@...gle.com,
        anshuman.khandual@....com, jan.kiszka@...mens.com,
        akpm@...ux-foundation.org, steven.price@....com,
        rppt@...ux.vnet.ibm.com, peterx@...hat.com,
        dan.j.williams@...el.com, arjunroy@...gle.com, logang@...tatee.com,
        thellstrom@...are.com, aarcange@...hat.com, justin.he@....com,
        robin.murphy@....com, ira.weiny@...el.com, keescook@...omium.org,
        jgross@...e.com, andrew.cooper3@...rix.com,
        pawan.kumar.gupta@...ux.intel.com, fenghua.yu@...el.com,
        vineela.tummalapalli@...el.com, yamada.masahiro@...ionext.com,
        sam@...nborg.org, acme@...hat.com, linux-doc@...r.kernel.org,
        linux-kernel@...r.kernel.org, kvm@...r.kernel.org
Subject: Re: [PATCH 1/2] arch/x86: Rename config
 X86_INTEL_MEMORY_PROTECTION_KEYS to generic x86

> diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
> index 1197b5596d5a..8630b9fa06f5 100644
> --- a/arch/x86/Kconfig
> +++ b/arch/x86/Kconfig
> @@ -1886,11 +1886,11 @@ config X86_UMIP
>  	  specific cases in protected and virtual-8086 modes. Emulated
>  	  results are dummy.
>  
> -config X86_INTEL_MEMORY_PROTECTION_KEYS
> -	prompt "Intel Memory Protection Keys"
> +config X86_MEMORY_PROTECTION_KEYS
> +	prompt "Memory Protection Keys"
>  	def_bool y
>  	# Note: only available in 64-bit mode
> -	depends on CPU_SUP_INTEL && X86_64
> +	depends on X86_64 && (CPU_SUP_INTEL || CPU_SUP_AMD)
>  	select ARCH_USES_HIGH_VMA_FLAGS
>  	select ARCH_HAS_PKEYS
>  	---help---

It's a bit of a bummer that we're going to prompt everybody doing
oldconfig's for this new option.  But, I don't know any way for Kconfig
to suppress it if the name is changed.  Also, I guess the def_bool=y
means that menuconfig and olddefconfig will tend to do the right thing.

Do we *really* need to change the Kconfig name?  The text prompt, sure.
 End users see that and having Intel in there is massively confusing.

If I have to put up with seeing 'amd64' all over my Debian package
names, you can put up with a Kconfig name. :P

I'm really just wondering what the point of the churn is.

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