Re: [PATCH 03/10] IOCHK interface for I/O error handling/detecting

From: Matthew Wilcox <matthew_at_wil.cx>
Date: 2005-06-10 03:20:35
On Thu, Jun 09, 2005 at 09:51:57PM +0900, Hidetoshi Seto wrote:
> +	switch (dev->hdr_type) {
> +	case PCI_HEADER_TYPE_NORMAL: /* 0 */
> +		pci_read_config_word(dev, PCI_STATUS, &status);
> +		break;
> +	case PCI_HEADER_TYPE_BRIDGE: /* 1 */
> +		pci_read_config_word(dev, PCI_SEC_STATUS, &status);
> +		break;
> +	case PCI_HEADER_TYPE_CARDBUS: /* 2 */
> +	default:
> +		BUG();

If somebody plugs a cardbus card into an ia64 machine, we BUG()?
Unacceptable.  Just return 0 if you don't know what to do with a
particular device.

-- 
"Next the statesmen will invent cheap lies, putting the blame upon 
the nation that is attacked, and every man will be glad of those
conscience-soothing falsities, and will diligently study them, and refuse
to examine any refutations of them; and thus he will by and by convince 
himself that the war is just, and will thank God for the better sleep 
he enjoys after this process of grotesque self-deception." -- Mark Twain
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Received on Thu Jun 9 13:19:48 2005

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