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Subject: Re: [PATCH v11 06/13] crypto: aesni: add minimal build option for SGX
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To:     Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>, x86@kernel.org,
        platform-driver-x86@vger.kernel.org
References: <20180608171216.26521-1-jarkko.sakkinen@linux.intel.com>
 <20180608171216.26521-7-jarkko.sakkinen@linux.intel.com>
Cc:     sean.j.christopherson@intel.com, nhorman@redhat.com,
        npmccallum@redhat.com, Herbert Xu <herbert@gondor.apana.org.au>,
        "David S. Miller" <davem@davemloft.net>,
        Thomas Gleixner <tglx@linutronix.de>,
        Ingo Molnar <mingo@redhat.com>,
        "H. Peter Anvin" <hpa@zytor.com>,
        "open list:CRYPTO API" <linux-crypto@vger.kernel.org>,
        "open list:X86 ARCHITECTURE (32-BIT AND 64-BIT)" 
        <linux-kernel@vger.kernel.org>
From:   Dave Hansen <dave.hansen@intel.com>
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Message-ID: <00750c65-27b5-7851-19f5-9a712686dfb2@intel.com>
Date:   Fri, 8 Jun 2018 10:27:37 -0700
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On 06/08/2018 10:09 AM, Jarkko Sakkinen wrote:
> --- a/arch/x86/crypto/aesni-intel_asm.S
> +++ b/arch/x86/crypto/aesni-intel_asm.S
> @@ -45,6 +45,8 @@
>  #define MOVADQ	movaps
>  #define MOVUDQ	movups
>  
> +#ifndef AESNI_INTEL_MINIMAL
> +
>  #ifdef __x86_64__
>  
>  # constants in mergeable sections, linker can reorder and merge
> @@ -133,6 +135,8 @@ ALL_F:      .octa 0xffffffffffffffffffffffffffffffff
>  #define keysize 2*15*16(%arg1)
>  #endif
>  
> +#endif /* AESNI_INTEL_MINIMAL */
> +

I'd really prefer that these get moved into a separate file rather than
a scattered set of #ifdefs.  This just seem fragile to me.

Can we have a "aesni-intel_asm-minimal.S"?  Or, at least bunch the
minimal set of things *together*?