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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	torvalds@osdl.org, jeff@garzik.org
Subject: Re: GAK!!!! Re: PCI: AMD SATA IDE mode quirk
Date: Fri, 22 Feb 2008 10:02:05 +0000	[thread overview]
Message-ID: <20080222100205.5c86d351@core> (raw)
In-Reply-To: <20080222094828.2a0124ca@core>

On Fri, 22 Feb 2008 09:48:28 +0000
Alan Cox <alan@lxorguk.ukuu.org.uk> wrote:

> >     Signed-off-by: Crane Cai <crane.cai@amd.com>
> >     Acked-by: Jeff Garzik <jeff@garzik.org>
> >     Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
> 
> Vomitted-upon-by: Alan Cox <alan@redhat.com>
> 
> > -	if ((pdev->class >> 8) == PCI_CLASS_STORAGE_IDE) {
> > -		u8 tmp;
> > +	/* set sb600/sb700/sb800 sata to ahci mode */
> > +	u8 tmp;
> >  
> > +	pci_read_config_byte(pdev, PCI_CLASS_DEVICE, &tmp);
> > +	if (tmp == 0x01) {
> 
> CLASS_DEVICE is cached in pdev->class so why not simply do:
> 
> 	if (pdev->class & (1 << 8))

or better yet

	((pdev->class & 0xFF00) == 0x0100)

;)
--
Gnome #3319

  reply	other threads:[~2008-02-22 10:11 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <200802220059.m1M0xgjZ022717@hera.kernel.org>
2008-02-22  9:48 ` Alan Cox
2008-02-22 10:02   ` Alan Cox [this message]
2008-02-22 10:34     ` Jiri Slaby
2008-02-25 22:53   ` Jeff Garzik
2008-02-26  2:15     ` Crane Cai
2008-02-26 12:45     ` Alan Cox

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