Re: [RFC/PATCH]reconfigure MSI registers after resume

From: Greg KH
Date: Wed Aug 31 2005 - 19:25:54 EST


On Thu, Aug 18, 2005 at 01:35:46PM +0800, Shaohua Li wrote:
> Hi,
> It appears pci_enable_msi doesn't reconfigure msi registers if it
> successfully look up a msi for a device. It assumes the data and address
> registers unchanged after calling pci_disable_msi. But this isn't always
> true, such as in a suspend/resume circle. In my test system, the
> registers unsurprised become zero after a S3 resume. This patch fixes my
> problem, please look at it. MSIX might have the same issue, but I
> haven't taken a close look.

Tom, any comments on this?

thanks,

greg k-h
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/