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    SubjectRe: [PATCH] add pci revision id to struct pci_dev
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    Ar Llu, 2006-11-06 am 07:10 -0700, ysgrifennodd Conke Hu:
    > > You can read the revision any time you like, we don't need to cache a
    > > copy as we don't reference it very often
    > I've searched the kernel soruce code and it seems that the revision id
    > is widely used in pci drivers.

    It is not however regularly and continually accessed - it doesn't need
    caching.

    Alan

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