linux-kernel - 2.6.35 vs. 2.6.33: ata_piix does not find any device after piix is loaded

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Date:	Wed, 4 Aug 2010 11:11:15 +0400
From:	Andrey Borzenkov <arvidjaar@...l.ru>
To:	linux-ide@...r.kernel.org,
	Kernel development list <linux-kernel@...r.kernel.org>
Subject: 2.6.35 vs. 2.6.33: ata_piix does not find any device after piix is loaded

Due to minor glitch in initrd generation I had both IDE and PATA
drivers included:

{pts/1}% lsmod | grep piix
ata_piix              
22460  0 
libata                193241  4
ata_generic,pata_acpi,ata_piix,ahci
piix                    5408  1

ide_core              116373  3 ide_cd_mod,ide_pci_generic,piix

With
kernel 2.6.33 it gives me DVD as hda and HDD as sda. With kernel
2.6.35 ata_piix does not find any device after piix had been loaded
effectively leaving me without root.

Is it intentional change or
should I fill a bug report? This is Dell XPS M1330 notebook with
single SATA disk.

00:1f.1 IDE interface: Intel Corporation
82801HBM/HEM (ICH8M/ICH8M-E) IDE Controller (rev 02)
00:1f.2 SATA
controller: Intel Corporation 82801HBM/HEM (ICH8M/ICH8M-E) SATA AHCI
Controller (rev 02)

I can provide additional information on request
or attach to bug report.

TIA

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