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SubjectRe: alpha iommu fixes
On Mon, May 21, 2001 at 02:21:18AM +1000, Andrew Morton wrote:
> Andrea Arcangeli wrote:
> Would it not be sufficient to define a machine-specific
> macro which queries it for error? On x86 it would be:
> #define BUS_ADDR_IS_ERR(addr) ((addr) == 0)

that would be more flexible at least, however not mixing the error with
a potential bus address still looks cleaner to me.

> I can't find *any* pci_map_single() in the 2.4.4-ac9 tree
> which can fail, BTW.

I assume you mean that no one single caller of pci_map_single is
checking if it failed or not (because all pci_map_single can fail).

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