linux-kernel - Re: [PATCHv3 06/10] crypto: add rocksoft 64b crc framework

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Date:   Tue, 22 Feb 2022 11:54:31 -0800
From:   Eric Biggers <ebiggers@...nel.org>
To:     Keith Busch <kbusch@...nel.org>
Cc:     linux-nvme@...ts.infradead.org, linux-block@...r.kernel.org,
        linux-crypto@...r.kernel.org, x86@...nel.org,
        linux-kernel@...r.kernel.org, axboe@...nel.dk, hch@....de,
        martin.petersen@...cle.com, colyli@...e.de
Subject: Re: [PATCHv3 06/10] crypto: add rocksoft 64b crc framework

On Tue, Feb 22, 2022 at 11:50:44AM -0800, Eric Biggers wrote:
> > +config CRC64_ROCKSOFT
> > +	tristate "CRC calculation for the Rocksoft^TM model CRC64"
> 
> I'm sure what the rules for trademarks are, but kernel source code usually
> doesn't have the trademark symbol/abbreviation scattered everywhere.
> 
> > +	select CRYPTO
> > +	select CRYPTO_CRC64_ROCKSOFT
> > +	help
> > +	  This option is only needed if a module that's not in the
> > +	  kernel tree needs to calculate CRC checks for use with the
> > +	  rocksoft model parameters.
> 
> Out-of-tree modules can't be the reason to have a kconfig option.  What is the
> real reason?

Also this option can be enabled without the CONFIG_CRC64 it depends on, which is
broken.

- Eric