linux-kernel - Re: [PATCH] libata: don't whine if ->prereset() returns -ENOENT

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Message-ID: <20070312121032.3cfd1786@lxorguk.ukuu.org.uk>
Date:	Mon, 12 Mar 2007 12:10:32 +0000
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Tejun Heo <htejun@...il.com>
Cc:	Fabio Comolli <fabio.comolli@...il.com>,
	Jeff Garzik <jeff@...zik.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	linux-ide@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>,
	Greg KH <greg@...ah.com>
Subject: Re: [PATCH] libata: don't whine if ->prereset() returns -ENOENT

> 1. I think these ports should be made dummy instead of returning
> -ENOENT on prereset().  -ENOENT from prereset() was a hack to keep
> ata_piix's behavior unchanged while converting it to new EH.  If no
> one objcts, I'll convert similar usages to use dummy ports after new
> init model and drop -ENOENT hack in #upstream.

No objection at all.

> 2. -ENODEV sounds more appropriate.  Why have I used -ENOENT.  :-)

You didn't - I did. I think -ENOENT is better as we are missing an entire
channel not a device (disk).

>
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