linux-kernel - Re: [PATCH 2/3] RFC4106 AES-GCM Driver Using Intel New Instructions

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Date:	Thu, 2 Dec 2010 16:14:03 -0800
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	"Struk, Tadeusz" <tadeusz.struk@...el.com>
Cc:	Herbert Xu <herbert@...dor.hengli.com.au>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-crypto@...r.kernel.org" <linux-crypto@...r.kernel.org>,
	"O Mahony, Aidan" <aidan.o.mahony@...el.com>,
	"Paoloni, Gabriele" <gabriele.paoloni@...el.com>,
	"Hoban, Adrian" <adrian.hoban@...el.com>
Subject: Re: [PATCH 2/3] RFC4106 AES-GCM Driver Using Intel New Instructions

On Thu, 18 Nov 2010 09:38:50 +0000
"Struk, Tadeusz" <tadeusz.struk@...el.com> wrote:

> -----Original Message-----
> > From: Herbert Xu [mailto:herbert@...dor.apana.org.au] 
> > Sent: Thursday, November 18, 2010 9:27 AM
> > To: Andrew Morton
> > Cc: Struk, Tadeusz; linux-kernel@...r.kernel.org; linux-crypto@...r.kernel.org; O Mahony, Aidan; Paoloni, Gabriele; Hoban, Adrian
> > Subject: Re: [PATCH 2/3] RFC4106 AES-GCM Driver Using Intel New Instructions
> > 
> > On Wed, Nov 17, 2010 at 05:23:31PM -0800, Andrew Morton wrote:
> > > On Thu, 4 Nov 2010 14:04:05 -0500
> > > Herbert Xu <herbert@...dor.hengli.com.au> wrote:
> > > 
> > > > On Thu, Oct 28, 2010 at 04:19:09PM +0100, tadeusz.struk@...el.com wrote:
> > > > > Hi Herbert,
> > > > >    We have reworked the assembly to use macros instead of the new aesni instructions.
> > > > 
> > > > Both applied.  Thanks for your efforts!
> > > 
> > > Whatever's in today's linux-next is a big fail with gas-2.16.1.
> > > 
> > > Which was entirely predictable!  How often has this happened recently??
> > > 
> > > 
> > > arch/x86/crypto/aesni-intel_asm.S: Assembler messages:
> > > arch/x86/crypto/aesni-intel_asm.S:834: Error: no such instruction: `pshufb SHUF_MASK(%rip),%xmm13'
> > > arch/x86/crypto/aesni-intel_asm.S:866: Error: no such instruction: `pshufb SHUF_MASK(%rip),%xmm5'
> > > arch/x86/crypto/aesni-intel_asm.S:866: Error: no such instruction: `pshufb SHUF_MASK(%rip),%xmm0'
> > > arch/x86/crypto/aesni-intel_asm.S:866: Error: bad expression
> > 
> > Sorry, but I no longer have access to a binutils that is older
> > than 2.18 so I never saw this failure.
> > 
> > Tadeusz, could you please make an incremental patch that converts
> > all the pshufb instructions to macros?
> > 
>
> Will do.
> Tadeusz
> 

(top-posting repaired)

(busted attribution/quoting repaired)

Current mainline still has this failure.
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