From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jeff Garzik <jgarzik@pobox.com>
Subject: Re: [PATCH 04/05] sata_mv: msi masking fix (v2)
Date: Mon, 26 Jan 2009 06:42:58 -0500
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References: <49750705.7010709@rtr.ca> <49750746.3010709@rtr.ca> <49750774.1070005@rtr.ca> <49773FD1.3040101@rtr.ca>
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To: Mark Lord <liml@rtr.ca>
Cc: IDE/ATA development list <linux-ide@vger.kernel.org>, Tejun Heo <htejun@gmail.com>

Mark Lord wrote:
> @@ -3414,9 +3423,9 @@
>     if (rc)
>         return rc;
> 
> -    /* Enable interrupts */
> -    if (msi && pci_enable_msi(pdev))
> -        pci_intx(pdev, 1);
> +    /* Enable message-switched interrupts, if requested */
> +    if (msi && 0 == pci_enable_msi(pdev))
> +        hpriv->hp_flags |= MV_HP_FLAG_MSI;

applied, after moving the '0' equality test to follow the 
pci_enable_msi() call...  :)