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Message-ID: <Pine.LNX.4.61.0705142204020.9570@yvahk01.tjqt.qr>
Date: Mon, 14 May 2007 22:06:04 +0200 (MEST)
From: Jan Engelhardt <jengelh@...ux01.gwdg.de>
To: Alan Cox <alan@...rguk.ukuu.org.uk>
cc: James Bottomley <James.Bottomley@...elEye.com>,
Simon Arlott <simon@...e.lp0.eu>,
"Robert P. J. Day" <rpjday@...dspring.com>,
Dave Jones <davej@...hat.com>,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
linux-scsi@...r.kernel.org
Subject: Re: why does x86 "make defconfig" build a single, lonely module?
On May 14 2007 19:46, Alan Cox wrote:
>> On May 13 2007 12:48, James Bottomley wrote:
>> >
>> >> Why does ATA select SCSI anyway? Surely PATA doesn't require it?
>> >That's a bit offtopic and to the wrong list.
>> >libata-pata does require SCSI ...
>>
>> And in the long run, that SCSI parts which are actually used by ATA
>> should be factored out so that SCSI really is SCSI again, and not
>> "Common layer for SCSI, SATA and PATA" or so.
>
>The common layer for the queueing is one thing, but the ATAPI devices
>(CD-ROM etc) are SCSI commands over an ATA bus. A subset of SCSI commands
>badly over an ATA bus but SCSI commands nevertheless - so they have the
>same basic dependancies as USB storage does.
Hm yes of course, but harddisks themselves do not normally need ATAPI;
so it would be cool to be capable of throwing it out for PATA-and-no-CDROM
boxes.
Jan
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