linux-kernel - Re: [PATCH v2 3/3] blk-crypto: show crypto capabilities in sysfs

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Message-ID: <ea5db68e-8d2b-b242-bf81-9fce29cdde83@suse.de>
Date:   Wed, 1 Dec 2021 07:45:14 +0100
From:   Hannes Reinecke <hare@...e.de>
To:     Eric Biggers <ebiggers@...nel.org>
Cc:     linux-block@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-api@...r.kernel.org, linux-scsi@...r.kernel.org,
        linux-mmc@...r.kernel.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Bart Van Assche <bvanassche@....org>
Subject: Re: [PATCH v2 3/3] blk-crypto: show crypto capabilities in sysfs

On 11/30/21 8:40 AM, Eric Biggers wrote:
> On Tue, Nov 30, 2021 at 07:49:54AM +0100, Hannes Reinecke wrote:
>>>     - "modes" is a sub-subdirectory, since there may be multiple supported
>>>       crypto modes, and sysfs is supposed to have one value per file.
>>>
>> Why do you have a sub-directory here?
>>  From what I can see, that subdirectory just contains the supported modes, so
>> wouldn't it be easier to create individual files like 'mode_<modename>'
>> instead of a subdirectory?
> 
> It is a group of attributes, so it makes sense to group them together rather
> than put them all in the parent directory alongside other attributes.  It also
> allows the use of proper names like "AES-256-XTS" rather than weird names like
> "mode_AES-256-XTS" or "mode_aes_256_xts".
> 
Right.

Reviewed-by: Hannes Reinecke <hare@...e.de>

Cheers,

Hannes
-- 
Dr. Hannes Reinecke                Kernel Storage Architect
hare@...e.de                              +49 911 74053 688
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