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From: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
To: Andi Kleen <andi@firstfloor.org>
Cc: "Johannes Goetzfried"
	<Johannes.Goetzfried@informatik.stud.uni-erlangen.de>,
	"Herbert Xu" <herbert@gondor.apana.org.au>,
	linux-kernel@vger.kernel.org, linux-crypto@vger.kernel.org,
	"Tilo Müller" <tilo.mueller@informatik.uni-erlangen.de>
Subject: Re: [PATCH] crypto: serpent - add x86_64/avx assembler implementation
Date: Wed, 30 May 2012 10:30:25 +0300	[thread overview]
Message-ID: <20120530103025.19252e1urui8sfb4@www.81.fi> (raw)
In-Reply-To: <m2396il7xc.fsf@firstfloor.org>

Quoting Andi Kleen <andi@firstfloor.org>:

>
> The driver needs CPUID annotations now (since 3.3), so that it can be
> autoloaded.  Something like:
>

Is it really good idea to autoload crypto modules? Currently loading  
different cipher implementations is handled via module-aliases and  
cipher priorities. With autoloading by CPUID, crypto-modules would be  
loaded and be mostly unused. For example, serpent-sse2 would be  
autoloaded on all x86-64 kernels (well, on those that have it compiled  
as module => probably most of distros).

IMHO these should be loaded only when needed, as is done with generic  
i586/x86-64 assembler cipher implementations.

-Jussi

  reply	other threads:[~2012-05-30  7:30 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-05-27 14:51 [PATCH] crypto: serpent - add x86_64/avx assembler implementation Johannes Goetzfried
2012-05-28  6:37 ` Jussi Kivilinna
2012-05-28 14:10   ` Johannes Goetzfried
2012-05-28 21:33     ` Jussi Kivilinna
2012-05-30  2:27 ` Andi Kleen
2012-05-30  7:30   ` Jussi Kivilinna [this message]
2012-05-30 11:32     ` Johannes Goetzfried
2012-05-30 15:39       ` Andi Kleen
2012-05-30 17:36         ` Johannes Goetzfried
2012-05-30 18:53         ` Jussi Kivilinna
2012-06-09 14:50           ` [PATCH] crypto: aes - make assembler implementation default for i386 and x86-64 Jussi Kivilinna
2012-06-12  8:26             ` Herbert Xu
2012-06-12 18:25               ` Jussi Kivilinna
2012-06-18  9:02                 ` Herbert Xu
2012-06-20 11:49                   ` Jussi Kivilinna
2012-05-30 21:29         ` [PATCH] crypto: serpent - add x86_64/avx assembler implementation Herbert Xu
2012-05-30 21:40           ` Andi Kleen
2012-05-30 21:44             ` Herbert Xu
2012-05-30 21:55               ` Andi Kleen
2012-05-30 22:34                 ` Herbert Xu
2012-05-30 11:36   ` Johannes Goetzfried
2012-05-30 16:26     ` Andi Kleen
2012-05-30 17:49       ` Johannes Goetzfried
  -- strict thread matches above, loose matches on Subject: below --
2012-05-28 14:12 Johannes Goetzfried

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