linux-kernel - Re: [3.12-rc1] Dependency on module-init-tools >= 3.11 ?

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Message-Id: <201309132227.JEB13098.SOLFHFOOVFJMQt@I-love.SAKURA.ne.jp>
Date:	Fri, 13 Sep 2013 22:27:15 +0900
From:	Tetsuo Handa <penguin-kernel@...ove.SAKURA.ne.jp>
To:	waiman.long@...com
Cc:	herbert@...dor.apana.org.au, andr345@...il.com,
	rusty@...tcorp.com.au, linux-kernel@...r.kernel.org,
	arthur.marsh@...ernode.on.net, tim.c.chen@...ux.intel.com,
	linux-crypto@...r.kernel.org
Subject: Re: [3.12-rc1] Dependency on module-init-tools >= 3.11 ?

Waiman Long wrote:
> I would like to report that I also have the same boot problem on a 
> RHEL6.4 box with the crypto patch. My workaround is to force kernel 
> build to have the crc_t10dif code built-in by changing the config file:
> 
> 4889c4889
> < CONFIG_CRYPTO_CRCT10DIF=m
> ---
>  > CONFIG_CRYPTO_CRCT10DIF=y
> 5002c5002
> < CONFIG_CRC_T10DIF=m
> ---
>  > CONFIG_CRC_T10DIF=y
> 
> This solved the boot problem without any additional patch.  Do you think 
> you should consider changing the configuration default to "y" instead of 
> "m" or doesn't allow the "m" option at all?

That was proposed but not accepted.
https://lkml.org/lkml/2013/7/17/543

You should choose CONFIG_CRYPTO_CRCT10DIF_PCLMUL=y in your kernel config
if your CPU supports PCLMULQDQ.
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