linux-kernel - Re: [PATCH] crypto: avoid module request when lookup crypto larval of template

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Date:	Tue, 11 Mar 2014 22:02:58 +0800
From:	joeyli <jlee@...e.com>
To:	Herbert Xu <herbert@...dor.apana.org.au>
Cc:	"David S. Miller" <davem@...emloft.net>,
	linux-crypto@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] crypto: avoid module request when lookup crypto larval
 of template

Hi Herbert, 

於 一，2014-03-10 於 19:57 +0800，Herbert Xu 提到：
> On Mon, Mar 10, 2014 at 05:22:51PM +0800, Lee, Chun-Yi wrote:
> > When allocate crypto algorithms, e.g. crypto_alloc_shash(), using
> > template model will run into the path that call module_request().
> > But there have no any module alias that match with the template name.
> 
> There aren't any but there could be.  For example, as it is
> all direct implementations of cbc(aes) rely on the fact that
> they also happen to provide aes to autoload themselves.
> 
> We may well have a case where it makes sense for a module to
> provide just cbc(aes) for example, in which case it would need
> such an alias for it to be loaded automatically.
> 
> Thanks,

Thanks for your quick explanation!

Joey Lee

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