linux-kernel - Re: [PATCH] Using Intel CRC32 instruction to accelerate CRC32c algorithm by new crypto API.

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Date:	Tue, 05 Aug 2008 05:51:34 -0400
From:	Austin Zhang <austin_zhang@...ux.intel.com>
To:	David Woodhouse <dwmw2@...radead.org>
Cc:	herbert@...dor.apana.org.au, davem@...emloft.net,
	linux-kernel@...r.kernel.org, linux-crypto@...r.kernel.org
Subject: Re: [PATCH] Using Intel CRC32 instruction to accelerate CRC32c
	algorithm by new crypto API.

On Mon, 2008-08-04 at 15:13 +0100, David Woodhouse wrote:
> Am I missing something here, or are you registering the crypto algorithm
> _unconditionally_ and then just causing init requests for it to fail on
> older hardware?  Wouldn't it be better to register the driver _only_
> when the hardware is capable? Or at least "if at least one cpu is
> capable".
Thanks, I will move it to module init.
> I think that should depend on CONFIG_X86? 
Thanks.

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