linux-kernel - Re: [PATCH] modules: add support for soft module dependencies

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Message-ID: <20130911044003.GA30913@gondor.apana.org.au>
Date:	Wed, 11 Sep 2013 14:40:03 +1000
From:	Herbert Xu <herbert@...dor.apana.org.au>
To:	Lucas De Marchi <lucas.de.marchi@...il.com>
Cc:	Rusty Russell <rusty@...tcorp.com.au>,
	Andreas Robinson <andr345@...il.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Zhao Hongjiang <zhaohongjiang@...wei.com>,
	David Miller <davem@...emloft.net>, tim.c.chen@...ux.intel.com,
	Andrew Morton <akpm@...ux-foundation.org>,
	"gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>,
	linux-crypto@...r.kernel.org,
	linux-modules <linux-modules@...r.kernel.org>,
	Tom Gundersen <teg@...m.no>
Subject: Re: [PATCH] modules: add support for soft module dependencies

On Tue, Sep 10, 2013 at 11:01:38AM -0300, Lucas De Marchi wrote:
>
> However looking at the only user right now, crct10dif: couldn't we
> detect at runtime if this module can be used instead of just trying to
> load it as a pre softdep and possibly failing?

No as sd_mod requires crct10dif to be present.  The use of softdep
as opposed to just a symbolic dependency is due to there being two
modules for crct10dif, a generic version and an arch-specific one.

Cheers,
-- 
Email: Herbert Xu <herbert@...dor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
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