linux-kernel - Re: [PATCH 3/4] crypto: [sha] glue code for Intel SHA extensions optimized SHA1 & SHA256

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Date:	Fri, 11 Sep 2015 12:15:09 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	tim.c.chen@...ux.intel.com
Cc:	smueller@...onox.de, herbert@...dor.apana.org.au, hpa@...or.com,
	sean.m.gulley@...el.com, mouli_7982@...oo.com,
	vinodh.gopal@...el.com, james.guilford@...el.com,
	wajdi.k.feghali@...el.com, jussi.kivilinna@....fi,
	linux-crypto@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/4] crypto: [sha] glue code for Intel SHA extensions
 optimized SHA1 & SHA256

From: Tim Chen <tim.c.chen@...ux.intel.com>
Date: Fri, 11 Sep 2015 11:49:32 -0700

> Still, why would some kernel module specifically not want to 
> use the fastest HW implementation, and explicitly ask for
> a slower driver?

Temporary workaround if a bug is found.

There is really no reason to prevent the user from having this
flexibility, and in return anyone can test any implementation
their cpu can support.
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