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From: "Martin K. Petersen" <martin.petersen@oracle.com>
To: Kees Cook <keescook@chromium.org>
Cc: Jens Axboe <axboe@kernel.dk>,
	Christoph Hellwig <hch@infradead.org>,
	"Martin K. Petersen" <martin.petersen@oracle.com>,
	James Bottomley <James.Bottomley@hansenpartnership.com>,
	Tejun Heo <tj@kernel.org>, Borislav Petkov <bp@alien8.de>,
	"David S. Miller" <davem@davemloft.net>,
	"Manoj N. Kumar" <manoj@linux.vnet.ibm.com>,
	"Matthew R. Ochs" <mrochs@linux.vnet.ibm.com>,
	Uma Krishnan <ukrishn@linux.vnet.ibm.com>,
	linux-block <linux-block@vger.kernel.org>,
	linux-ide@vger.kernel.org, linux-scsi@vger.kernel.org,
	LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 3/6] block: Create scsi_sense.h for SCSI and ATAPI
Date: Wed, 23 May 2018 17:06:02 -0400	[thread overview]
Message-ID: <yq1o9h684lh.fsf@oracle.com> (raw)
In-Reply-To: <CAGXu5jJn=1Rz=D8VUwv_VoaGoLtaD=+tcPZxQxntweZoZwFa5Q@mail.gmail.com> (Kees Cook's message of "Wed, 23 May 2018 13:52:02 -0700")


Kees,

> obj-$(CONFIG_SCSI)              += scsi/
>
> So: this needs to live in block/ just like CONFIG_BLK_SCSI_REQUEST's
> scsi_ioctl.c. I will split it into CONFIG_BLK_SCSI_SENSE, but I'll
> still need to move the code from drivers/scsi/ to block/. Is this
> okay?

The reason this sucks is that scsi_normalize_sense() is an inherent core
feature in the SCSI layer. Dealing with sense data for ioctls is just a
fringe use case.

I don't want to get too hung up on what goes where. But architecturally
it really irks me to move a core piece of SCSI state machine
functionality out of the subsystem to accommodate ioctl handling.

I'm traveling today so I probably won't get a chance to look closely
until tomorrow morning.

-- 
Martin K. Petersen	Oracle Linux Engineering

  reply	other threads:[~2018-05-23 21:06 UTC|newest]

Thread overview: 45+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-05-22 18:15 [PATCH 0/6] block: Consolidate scsi sense buffer usage Kees Cook
2018-05-22 18:15 ` [PATCH 1/6] ide-cd: Drop unused sense buffers Kees Cook
2018-05-22 18:41   ` Christoph Hellwig
2018-05-22 18:15 ` [PATCH 2/6] scsi: cxlflash: " Kees Cook
2018-05-22 18:41   ` Christoph Hellwig
2018-05-22 21:03   ` Matthew R. Ochs
2018-05-22 18:15 ` [PATCH 3/6] block: Create scsi_sense.h for SCSI and ATAPI Kees Cook
2018-05-22 18:36   ` Christoph Hellwig
2018-05-22 18:50     ` Martin K. Petersen
2018-05-22 18:59       ` Kees Cook
2018-05-22 19:09         ` Jens Axboe
2018-05-22 19:13           ` Christoph Hellwig
2018-05-22 19:16             ` Jens Axboe
2018-05-22 23:31               ` Kees Cook
2018-05-22 23:34                 ` Randy Dunlap
2018-05-22 23:39                   ` Kees Cook
2018-05-22 23:41                     ` Randy Dunlap
2018-05-22 23:42                 ` Jens Axboe
2018-05-22 23:42                   ` Jens Axboe
2018-05-22 23:49                   ` Kees Cook
2018-05-22 23:49                     ` Kees Cook
2018-05-23 14:13                     ` Jens Axboe
2018-05-23 14:25                       ` Christoph Hellwig
2018-05-23 14:31                         ` Jens Axboe
2018-05-23 20:52                           ` Kees Cook
2018-05-23 21:06                             ` Martin K. Petersen [this message]
2018-05-23 21:17                               ` Kees Cook
2018-05-24  7:36                                 ` Christoph Hellwig
2018-05-23 21:14                             ` Jens Axboe
2018-05-23 21:20                               ` Randy Dunlap
2018-05-23 21:22                                 ` Jens Axboe
2018-05-23 21:23                                   ` Randy Dunlap
2018-05-24  8:00                               ` Christoph Hellwig
2018-05-24 17:06                                 ` Kees Cook
2018-05-25 14:48                                   ` Christoph Hellwig
2018-07-08 20:23                                   ` Christoph Hellwig
2018-07-09 15:56                                     ` Kees Cook
2018-07-31  7:53                                       ` Christoph Hellwig
2018-07-31 19:52                                         ` Kees Cook
2018-05-22 18:15 ` [PATCH 4/6] block: Consolidate scsi sense buffer usage Kees Cook
2018-05-22 18:15 ` [PATCH 5/6] libata-scsi: Move sense buffers onto stack Kees Cook
2018-05-22 18:15 ` [PATCH 6/6] scsi: Check sense buffer size at build time Kees Cook
2018-05-23  8:25   ` Sergei Shtylyov
2018-05-23 21:08     ` Kees Cook
2018-05-24 14:11   ` Christoph Hellwig

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