linux-kernel - Re: [PATCH v22 07/24] x86/sgx: Add wrappers for ENCLS leaf functions

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Message-ID: <20191008145642.GH14765@zn.tnic>
Date:   Tue, 8 Oct 2019 16:56:42 +0200
From:   Borislav Petkov <bp@...en8.de>
To:     Sean Christopherson <sean.j.christopherson@...el.com>
Cc:     Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>,
        linux-kernel@...r.kernel.org, x86@...nel.org,
        linux-sgx@...r.kernel.org, akpm@...ux-foundation.org,
        dave.hansen@...el.com, nhorman@...hat.com, npmccallum@...hat.com,
        serge.ayoun@...el.com, shay.katz-zamir@...el.com,
        haitao.huang@...el.com, andriy.shevchenko@...ux.intel.com,
        tglx@...utronix.de, kai.svahn@...el.com, josh@...htriplett.org,
        luto@...nel.org, kai.huang@...el.com, rientjes@...gle.com,
        cedric.xing@...el.com
Subject: Re: [PATCH v22 07/24] x86/sgx: Add wrappers for ENCLS leaf functions

On Tue, Oct 08, 2019 at 06:35:11AM -0700, Sean Christopherson wrote:
> Hmm, I get assembler errors using gcc 5.4.0

Crap. 8.3 eats this just fine. And I guess we can accomodate old gccs
by having BIT() evaluate the enclosing UL() macro into its __ASSEMBLY__
variant but it ain't worth the trouble.

-- 
Regards/Gruss,
    Boris.

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