Re: [RFC] I/O Access Abstractions

From: Alan Cox (
Date: Mon Jul 02 2001 - 11:56:56 EST

> Because if we just pass in this one extra piece of information which is
> normally already available in the driver, we can avoid a whole lot of ugly
> cruft in the out-of-line functions by plugging in the correct out-of-line
> function to match the resource.

Case 1:
        You pass a single cookie to the readb code
        Odd platforms decode it

Case 2:
        You carry around bus number information all throughout
                each driver
        You keep putting it on/off the stack
        You keep it in structures
        You do complex generic locking for hotplug 'just in case'

I think I prefer case 1.

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