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Message-Id: <1162730714.8525.60.camel@localhost.localdomain>
Date:	Sun, 05 Nov 2006 20:45:14 +0800
From:	Conke Hu <conke.hu@....com>
To:	Arjan van de Ven <arjan@...radead.org>
Cc:	Luugi Marsan <luugi.marsan@....com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] Workaround for SB600 SATA ODD issue

On Sat, 2006-11-04 at 18:36 +0100, Arjan van de Ven wrote:
> On Fri, 2006-11-03 at 14:00 -0500, Luugi Marsan wrote:
> > From: conke.hu@....com
> > 
> > There was an ASIC bug in the SB600 SATA controller of low revision (<=13) and CD burning may hang (only SATA ODD has this issue, and SATA HDD works well). The patch provides a workaround for this issue.
> > 
> > Signed-off-by:  Luugi Marsan <luugi.marsan@....com>
> > 
> > --- linux-2.6.19-rc4-git5/drivers/ata/ahci.c.orig       2006-11-04 03:56:22.000000000 +0800
> > +++ linux-2.6.19-rc4-git5/drivers/ata/ahci.c    2006-11-04 04:20:36.000000000 +0800
> > @@ -189,6 +189,7 @@ struct ahci_host_priv {
> >         unsigned long           flags;
> >         u32                     cap;    /* cache of HOST_CAP register */
> >         u32                     port_map; /* cache of HOST_PORTS_IMPL reg */
> > +       u8                      rev;    /* PCI Revision ID */
> >  };
> >  
> 
> why put this into the ahci struct rather than in the pci device struct?
> In the place you use it you already have the pci device struct already..
> and it's really a pci device property so putting it in that struct makes
> a whole lot of sense conceptually anyway...
> 
> 

Hi Arjan,
    Yes, I also thought it's more reasonable to add "u8 rev;" to pci_dev
than to ahci_host_priv, but that will effect source code in large scope,
so I added it here :(
    Maybe I should resend a patch both for pci_dev and SB600 SATA at the
same time.


Best regards,
Conke Hu

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