linux-kernel - Re: [PATCH] libata: fix combined mode (was Re: Happy New Year (and v2.6.20-rc3 released))

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Message-ID: <459AF0B4.10509@pobox.com>
Date:	Tue, 02 Jan 2007 18:54:28 -0500
From:	Jeff Garzik <jgarzik@...ox.com>
To:	Alan <alan@...rguk.ukuu.org.uk>, Linus Torvalds <torvalds@...l.org>
CC:	Alessandro Suardi <alessandro.suardi@...il.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] libata: fix combined mode (was Re: Happy New Year (and
 v2.6.20-rc3 released))

Or maybe this rephrase helps:

Regardless of how the IDE quirks have configured the PCI BARs, libata is 
written to assume that /all/ struct pci_dev resources for a single PCI 
device are reserved to the libata driver.

Thus, if you avoid calling pci_request_regions (as your patch does), you 
must manually provide the same guarantees that pci_request_regions 
provides to its callers.

	Jeff

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