linux-kernel - Re: [PATCH 3/6] block: Create scsi

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Message-ID: <732f4249-5681-4a54-ec21-4ecc3d3a74e5@kernel.dk>
Date:   Tue, 22 May 2018 13:09:41 -0600
From:   Jens Axboe <axboe@...nel.dk>
To:     Kees Cook <keescook@...omium.org>,
        "Martin K. Petersen" <martin.petersen@...cle.com>
Cc:     Christoph Hellwig <hch@...radead.org>,
        James Bottomley <James.Bottomley@...senpartnership.com>,
        Tejun Heo <tj@...nel.org>, Borislav Petkov <bp@...en8.de>,
        "David S. Miller" <davem@...emloft.net>,
        "Manoj N. Kumar" <manoj@...ux.vnet.ibm.com>,
        "Matthew R. Ochs" <mrochs@...ux.vnet.ibm.com>,
        Uma Krishnan <ukrishn@...ux.vnet.ibm.com>,
        linux-block <linux-block@...r.kernel.org>,
        linux-ide@...r.kernel.org, linux-scsi@...r.kernel.org,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 3/6] block: Create scsi_sense.h for SCSI and ATAPI

On 5/22/18 12:59 PM, Kees Cook wrote:
> On Tue, May 22, 2018 at 11:50 AM, Martin K. Petersen
> <martin.petersen@...cle.com> wrote:
>>
>> Christoph,
>>
>>> On Tue, May 22, 2018 at 11:15:09AM -0700, Kees Cook wrote:
>>>> Both SCSI and ATAPI share the sense header. In preparation for using the
>>>> struct scsi_sense_hdr more widely, move this into a separate header and
>>>> move the helper function to scsi_ioctl.c which is linked with CONFIG_IDE
>>>> by way of CONFIG_BLK_SCSI_REQUEST.
>>>
>>> Please keep the code where it is and just depend on SCSI on the legacy
>>> ide driver.  No need to do gymnastics just for a legacy case.
>>
>> Yup, I agree.
> 
> Oh, er, this was mainly done at Jens's request. Jens, can you advise?

I think Martin and Christoph are objecting to moving the code to
block/scsi_ioctl.h. I don't care too much about where the code is, but
think it would be nice to have the definitions in a separate header. But
if they prefer just pulling in all of SCSI for it, well then I guess
it's pointless to move the header bits. Seems very heavy handed to me,
though.

-- 
Jens Axboe