Re: [PATCH v3 5/8] x86/sme: Replace occurrences of sme_active() with cc_platform_has()

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To: "Kirill A. Shutemov" <kirill@xxxxxxxxxxxxx>
Subject: Re: [PATCH v3 5/8] x86/sme: Replace occurrences of sme_active() with cc_platform_has()
From: Borislav Petkov <bp@xxxxxxxxx>
Date: Wed, 22 Sep 2021 21:52:07 +0200
Cc: Tom Lendacky <thomas.lendacky@xxxxxxx>, linuxppc-dev@xxxxxxxxxxxxxxxx, linux-s390@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, x86@xxxxxxxxxx, iommu@xxxxxxxxxxxxxxxxxxxxxxxxxx, kvm@xxxxxxxxxxxxxxx, linux-efi@xxxxxxxxxxxxxxx, platform-driver-x86@xxxxxxxxxxxxxxx, linux-graphics-maintainer@xxxxxxxxxx, amd-gfx@xxxxxxxxxxxxxxxxxxxxx, dri-devel@xxxxxxxxxxxxxxxxxxxxx, kexec@xxxxxxxxxxxxxxxxxxx, linux-fsdevel@xxxxxxxxxxxxxxx, Brijesh Singh <brijesh.singh@xxxxxxx>, Joerg Roedel <joro@xxxxxxxxxx>, Andi Kleen <ak@xxxxxxxxxxxxxxx>, Sathyanarayanan Kuppuswamy <sathyanarayanan.kuppuswamy@xxxxxxxxxxxxxxx>, Tianyu Lan <Tianyu.Lan@xxxxxxxxxxxxx>, Christoph Hellwig <hch@xxxxxxxxxxxxx>, Thomas Gleixner <tglx@xxxxxxxxxxxxx>, Ingo Molnar <mingo@xxxxxxxxxx>, Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>, Andy Lutomirski <luto@xxxxxxxxxx>, Peter Zijlstra <peterz@xxxxxxxxxxxxx>, Will Deacon <will@xxxxxxxxxx>
In-reply-to: <20210922143015.vvxvh6ec73lffvkf@box.shutemov.name>
References: <20210920192341.maue7db4lcbdn46x@box.shutemov.name> <77df37e1-0496-aed5-fd1d-302180f1edeb@amd.com> <YUoao0LlqQ6+uBrq@zn.tnic> <20210921212059.wwlytlmxoft4cdth@box.shutemov.name> <YUpONYwM4dQXAOJr@zn.tnic> <20210921213401.i2pzaotgjvn4efgg@box.shutemov.name> <00f52bf8-cbc6-3721-f40e-2f51744751b0@amd.com> <20210921215830.vqxd75r4eyau6cxy@box.shutemov.name> <01891f59-7ec3-cf62-a8fc-79f79ca76587@amd.com> <20210922143015.vvxvh6ec73lffvkf@box.shutemov.name>

On Wed, Sep 22, 2021 at 05:30:15PM +0300, Kirill A. Shutemov wrote:
> Not fine, but waiting to blowup with random build environment change.

Why is it not fine?

Are you suspecting that the compiler might generate something else and
not a rip-relative access?

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette

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